DINO HF Sinclair Corporation

As filed with the Securities and Exchange Commission on May 10, 2024

Registration No. 333-   

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-4

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

HF SINCLAIR CORPORATION

(Exact name of Registrant as specified in its charter)

2828 N. Harwood, Suite 1300

Dallas, Texas 75201

(214) 871-3555

(Address, including zip code, and telephone number, including area code, of Registrant’s principal executive offices)

Stacey L. Foland

Acting General Counsel and Secretary

HF Sinclair Corporation

2828 N. Harwood, Suite 1300

Dallas, Texas 75201

(214) 871-3555

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies of all communications, including communications sent to agent for service, should be sent to:

Katherine Terrell Frank

Vinson & Elkins L.L.P.

2001 Ross Avenue, Suite 3900

Dallas, Texas 75201

(214) 220-7700

Approximate date of commencement of proposed sale of the securities to the public:

As soon as practicable after this registration statement becomes effective.

If the securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box. ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

If applicable, place an X in the box to designate the appropriate rule provision relied upon in conducting this transaction:

Exchange Act Rule 13e-4(i) (Cross-Border Issuer Tender Offer) ☐

Exchange Act Rule 14d-1(d) (Cross-Border Third-Party Tender Offer) ☐

The Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

The information in this preliminary prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

PRELIMINARY—SUBJECT TO COMPLETION, DATED MAY 10, 2024

HF SINCLAIR CORPORATION

Offers to Exchange the Notes Set Forth Below

Registered Under the Securities Act of 1933, as amended, for

Any and All Outstanding Restricted Notes

Set Forth Opposite the Corresponding Registered Notes

Principal Terms of the Exchange Offers

These are offers (the “exchange offers”) by HF Sinclair Corporation, a Delaware corporation (“HF Sinclair,” the “Company,” “we,” “us,” “our,” the “Issuer” or the “Registrant”), to exchange all outstanding unregistered Restricted Notes (as defined below) for an equal principal amount of the respective series of the Company’s 6.375% Senior Notes due 2027 and 5.000% Senior Notes due 2028 (collectively, the “Registered Notes”), the offers of which have been registered under the Securities Act of 1933, as amended (the “Securities Act”).

HF Sinclair issued the unregistered 6.375% Senior Notes due 2027 and 5.000% Senior Notes due 2028 (collectively, the “Restricted Notes”) on December 4, 2023 in private offers pursuant to which notes of the Company’s subsidiary, Holly Energy Partners, L.P., a Delaware limited partnership (“HEP”), were exchanged for the Restricted Notes.

Each of the exchange offers expires at 5:00 p.m., New York City time, on     , 2024, unless the Company extends one or more offers. You may withdraw tenders of Restricted Notes at any time prior to the expiration of the relevant exchange offer. The exchange offers are not subject to any condition other than that they will not violate any applicable law, rule, regulation or interpretations of the staff of the Securities and Exchange Commission (the “SEC”) and that no proceedings with respect to the exchange offers have been instituted or threatened in any court or by any governmental agency. The exchange offers are not conditioned upon any minimum aggregate principal amount of Restricted Notes being tendered for exchange. None of the exchange offers is conditioned on the consummation of any of the other exchange offers.

Principal Terms of the Registered Notes

The terms of the Registered Notes to be issued in the exchange offers are substantially identical in all material respects to the terms of the Restricted Notes, except that the Registered Notes will not be subject to restrictions on transfer or to any increase in annual interest rate for failure to comply with the Registration Rights Agreement (as defined below) and will not have the registration rights applicable to the Restricted Notes. No public market currently exists for the Registered Notes. The Company does not intend to list the Registered Notes on any securities exchange or to apply for quotation in any automated dealer quotation system, and, therefore, no active public market is anticipated.

The Registered Notes, like the Restricted Notes, will be unsecured, unsubordinated obligations of the Company and will rank equally in right of payment with all of the Company’s existing and future unsecured, unsubordinated indebtedness.

Participating in these exchange offers involves risk. See “Risk Factors” beginning on page 10 of this prospectus, as well as those contained in any accompanying prospectus supplement and the documents incorporated by reference herein or therein, for a discussion of factors you should consider before participating in these exchange offers.

Each broker-dealer that receives Registered Notes for its own account pursuant to the exchange offers must acknowledge that it will deliver a prospectus in connection with any resale of such Registered Notes. The letter of transmittal states that, by so acknowledging and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act.

This prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Registered Notes received in exchange for Restricted Notes that were acquired by such broker-dealer as a result of market-making or other trading activities. The Company has agreed that, for a period of up to 180 days after the expiration date of the applicable exchange offer, if requested by one or more such broker-dealers, the Company will amend or supplement this prospectus in order to expedite or facilitate the disposition of any Registered Notes by any such broker-dealers. See “Plan of Distribution.”

Neither the SEC nor any state securities commission has approved or disapproved of these Registered Notes or the exchange offers, or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is      , 2024.

TABLE OF CONTENTS

The Company has not authorized anyone to provide you with information that is different from the information included or incorporated by reference in this document. The Company cannot take responsibility for, nor provide assurances as to the reliability of, any different or additional information that others may give you. This document may only be used where it is legal to sell these securities.

No person is authorized in connection with these exchange offers to give any information or to make any representation not contained in this prospectus, and, if given or made, such other information or representation must not be relied upon as having been authorized by the Company. You should assume that the information contained in this prospectus is accurate only as of its date.

This prospectus does not constitute an offer to sell or buy any Registered Notes in any jurisdiction where it is unlawful to do so. You should base your decision to invest in the Registered Notes and participate in the exchange offers solely on information contained or incorporated by reference in this prospectus.

No person should construe anything in this prospectus as legal, business or tax advice. Each person should consult its own advisors as needed to make its investment decision and to determine whether it is legally permitted to participate in the exchange offers under applicable legal investment or similar laws or regulations.

We have filed with the SEC a registration statement on Form S-4 (File No. 333-    ) with respect to the exchange offers and the Registered Notes. This prospectus, which forms part of that registration statement, does not contain all the information included in the registration statement, including its exhibits and schedules. For further information about the Company, the exchange offers and the Registered Notes described in this prospectus, you should refer to the registration statement and its exhibits and schedules and the documents incorporated by reference herein. Statements the Company makes in this prospectus or in the documents incorporated by reference herein about certain contracts or other documents are not necessarily complete. When the Company makes such statements, the Company refers you to the copies of the contracts or documents that are filed, because those statements are qualified in all respects by reference to those exhibits. The registration statement incorporates important business and financial information about the Company that is not included or delivered with this document. The registration statement, including its exhibits and schedules, is available at the SEC’s website at www.sec.gov. You may also obtain this information without charge by written or oral request made to the office of HF Sinclair Corporation, 2828 N. Harwood, Suite 1300, Dallas, Texas 75201, Attention: Acting General Counsel and Secretary, (214) 871-3555.

In order to ensure timely delivery, you must request the information no later than      , 2024, which is five business days before the expiration of the exchange offers.

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This prospectus and some of the documents we incorporate by reference contain certain “forward-looking statements” within the meaning of federal securities laws. These forward-looking statements are identified as any statement that does not relate strictly to historical or current facts. When used in this prospectus or the documents we have incorporated herein or therein by reference, words such as “anticipate,” “project,” “will,” “expect,” “plan,” “goal,” “forecast,” “strategy,” “intend,” “should,” “would,” “could,” “believe,” “may,” and similar expressions and statements regarding our plans and objectives for future operations are intended to identify forward-looking statements. These forward-looking statements are based on management’s beliefs and assumptions using currently available information and expectations as of the date hereof, are not guarantees of future performance and involve certain risks and uncertainties. All statements concerning our expectations for future results of operations are based on forecasts for our existing operations and do not include the potential impact of any future acquisitions. Although we believe that the expectations reflected in these forward-looking statements are reasonable, we cannot assure you that our expectations will prove to be correct. Therefore, actual outcomes and results could materially differ from what is expressed, implied or forecast in these statements. Any differences could be caused by a number of factors including, but not limited to:

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All forward-looking statements included in this prospectus and all subsequent written or oral forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these cautionary statements. Other factors described herein, or factors that are unknown or unpredictable, could also have a material adverse effect on future results. You should not put undue reliance on any forward-looking statements. This summary discussion should be read in conjunction with the discussion of the known material risk factors and other cautionary statements under the heading “Risk Factors” included in this prospectus, any prospectus supplement, and in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2023, each incorporated by reference herein. The forward-looking statements speak only as of the date made and, other than as required by securities laws, we undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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WHERE YOU CAN FIND MORE INFORMATION

We have filed with the SEC a registration statement on Form S-4 (File No. 333-    ) under the Securities Act that registers the Registered Notes that will be offered in exchange for the Restricted Notes. The registration statement, including the attached exhibits and schedules, contains additional relevant information about us and the Registered Notes. The rules and regulations of the SEC allow us to omit from this document certain information included in the registration statement.

We file annual, quarterly and current reports, and other information with the SEC (File No. 001-41325). Our filings with the SEC are available to the public through the Internet at the SEC’s website at http://www.sec.gov. You can also obtain information about us at the offices of the New York Stock Exchange, 20 Broad Street, New York, New York 10005. We make available free of charge on our Internet website at http://www.hfsinclair.com all of the documents that we file with the SEC as soon as reasonably practicable after we electronically file those documents with the SEC. Information on our website or any other website is not incorporated by reference into this prospectus and does not constitute part of this prospectus unless specifically so designated and filed with the SEC.

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INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

The SEC allows us to “incorporate by reference” in this prospectus the information in other documents that we file with it, which means that we can disclose important information to you by referring you to those publicly filed documents. The information incorporated by reference herein is considered to be a part of this prospectus, and information in documents that we file later with the SEC will automatically update and supersede information contained in documents filed earlier with the SEC or contained in this prospectus or a prospectus supplement. Accordingly, we incorporate by reference in this prospectus the documents listed below and any future filings that we may make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) after the date of the initial registration statement and prior to the effectiveness of the registration statement and after the date of this prospectus and prior to the termination of the offering under this prospectus (excluding in each case information furnished pursuant to Item 2.02 or Item 7.01 of any Current Report on Form 8-K unless we specifically state in such Current Report that such information is to be considered “filed” under the Exchange Act, or we incorporate it by reference into a filing under the Securities Act or the Exchange Act):

You should rely only on the information contained or incorporated by reference in this prospectus and in any supplement hereto. We have not authorized any person, including any salesperson or broker, to provide information other than that provided in this prospectus and in any supplement hereto. We have not authorized anyone to provide you with different information. We are not making an offer of the securities in any jurisdiction where the offer is not permitted. You should assume that the information in this prospectus and in any supplement hereto is accurate only as of the date on its cover page and that any information incorporated by reference herein is accurate only as of the date of the document incorporated by reference.

We will provide without charge to each person to whom a copy of this prospectus has been delivered, upon written or oral request, a copy of any or all of the documents we incorporate by reference in this prospectus, other than any exhibit to any of those documents, unless we have specifically incorporated that exhibit by reference into the information this prospectus incorporates. You may request copies by writing or telephoning us at the following address:

HF Sinclair Corporation

2828 N. Harwood, Suite 1300

Dallas, Texas 75201

Attention: Acting General Counsel and Secretary

Telephone: (214) 871-3555

To obtain timely delivery of any of our filings, agreements or other documents, you must make your request to us no later than      , 2024. In the event that we extend the exchange offers, you must submit your request at least five business days before the expiration date of the exchange offers, as extended.

Except as expressly provided above, no other information is incorporated by reference into this prospectus.

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RISK FACTORS

Investing in the Registered Notes involves risks, which risks are substantially equivalent to those applicable to the Restricted Notes exchanged therefor except that the Registered Notes will be registered. Prospective investors should consider carefully all of the information set forth in this prospectus, any free writing prospectus filed by us with the SEC and the documents incorporated by reference herein. In particular, you should carefully consider the risk factors discussed below and under “Risk Factors” included in our Annual Report on Form 10-K for the year ended December 31, 2023. See “Incorporation of Certain Information by Reference” and “Cautionary Statement Regarding Forward-Looking Statements.”

Risks Related to the Registered Notes

The Registered Notes are structurally subordinated to all the obligations of our subsidiaries and our ability to service our debt is dependent on the performance of our subsidiaries. Despite our current indebtedness levels, we may be able to incur substantially more debt, which could exacerbate the risks associated with our leverage.

The Registered Notes will be structurally subordinated in right of payment to all existing and future indebtedness and other liabilities, including trade payables and other accrued rebates and liabilities, of our subsidiaries. We may, and our subsidiaries may, incur substantial additional indebtedness, including secured indebtedness, in the future. The terms of the Indenture generally do not restrict us or our subsidiaries from doing so. In addition, the Indenture will allow us to issue other series of debt securities under certain circumstances. Although the Indenture places some limitations on our ability and the ability of our subsidiaries to create liens securing indebtedness, there are significant exceptions to these limitations that will allow us and our subsidiaries to secure significant amounts of indebtedness without equally and ratably securing the Registered Notes. If we or our subsidiaries incur secured indebtedness and such secured indebtedness is either accelerated or becomes subject to a bankruptcy, liquidation or reorganization, our and our subsidiaries’ assets would be used to satisfy obligations with respect to the indebtedness secured thereby before any payment could be made on the Registered Notes that are not similarly secured. Subject to certain limitations relating to creation of liens, the Indenture also will not restrict our subsidiaries from incurring additional debt, which would be structurally senior to the Registered Notes. In addition, the Indenture will not prevent us or our subsidiaries from incurring other liabilities that do not constitute indebtedness.

The Registered Notes are obligations exclusively of HF Sinclair. However, since we conduct a significant portion of our operations through our subsidiaries, our cash flow and our consequent ability to service our debt, including the Registered Notes, depends in part upon the earnings of our subsidiaries and the distribution of those earnings, or upon loans or other payments of funds by those subsidiaries, to us. The payment of dividends and the making of loans and advances to us by our subsidiaries may be subject to statutory or contractual restrictions, may depend upon the earnings of those subsidiaries and may be subject to various business considerations. As of March 31, 2024, we had total consolidated indebtedness of approximately $2.68 billion.

The Registered Notes will be unsecured and therefore will be effectively subordinated to any secured debt we may incur in the future.

The Registered Notes will not be secured by any of HF Sinclair’s assets or those of our subsidiaries. As a result, the Registered Notes will be effectively subordinated to any secured debt we may incur to the extent of the value of the assets securing such debt. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of our secured debt may assert rights against the secured assets in order to receive full payment of their debt before the assets may be used to pay the holders of the Registered Notes.

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An increase in market interest rates could result in a decrease in the market value of the Registered Notes.

In general, as market interest rates rise, debt securities bearing interest at fixed rates of interest decline in value. Consequently, if market interest rates increase, the market value of the Registered Notes may decline. We cannot predict the future level of market interest rates.

Our indebtedness could adversely affect our business, financial condition and results of operations, as well as our ability to meet payment obligations under the Registered Notes and other debt, and any downgrade of our credit rating could adversely impact us.

As of March 31, 2024, we had total consolidated indebtedness of approximately $2.68 billion. Our indebtedness and other financial commitments have important consequences to our business, including, but not limited to:

Any of the above-listed factors could have an adverse effect on our business, financial condition and results of operations and our ability to meet our payment obligations under the Registered Notes and other debt.

Our ability to meet our payment and other obligations under our debt instruments depends on our ability to generate significant cash flow in the future. This ability, to some extent, is subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under our existing or any future credit facilities or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Registered Notes and our other debt and to fund other liquidity needs. If we are not able to generate sufficient cash flow to service our debt obligations, we may need to refinance or restructure our debt, including the Registered Notes, sell assets, reduce or delay capital investments, or seek to raise additional capital. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under the Registered Notes and our other debt.

In addition, we receive credit ratings from rating agencies in the United States with respect to our debt. Factors that may impact our credit ratings include, among others, debt levels, planned asset sales and purchases, liquidity, forecasted production growth and commodity prices. Any credit downgrades could adversely impact our ability to access financing and trade credit, require us to provide additional letters of credit or other assurances under contractual arrangements and increase our interest rate under any credit facility borrowing as well as the cost of any other future debt.

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Under the Indenture, the change of control events that would require us to purchase the Registered Notes are subject to a number of significant limitations, and change of control events that affect the market price of such Registered Notes may not give rise to any obligation to purchase the Registered Notes.

Although we will be required under the Indenture to make an offer to purchase the Registered Notes upon the occurrence of a Change of Control Triggering Event, the term “Change of Control Triggering Event” is limited in its scope and does not include all change of control events that might affect the market value of the Registered Notes. In particular, we are required to purchase the Registered Notes upon certain change of control events only if, as a result of such change of control event, the ratings of such Registered Notes are lowered below investment grade during the relevant “trigger period” and the rating agencies assigning such lowered ratings expressly link the reduction in rating to the change of control event. As a result, our obligation to purchase the Registered Notes upon the occurrence of a change of control is limited and may not preserve the value of such Registered Notes in the event of a highly leveraged transaction, reorganization, merger or similar transaction.

We may be unable to purchase the Registered Notes upon a Change of Control Triggering Event.

The terms of the Registered Notes will require us, subject to certain exceptions, to make an offer to purchase the Registered Notes upon the occurrence of a Change of Control Triggering Event at a purchase price equal to 101% of the principal amount of the Registered Notes, plus accrued and unpaid interest, if any, to the date of the purchase. The occurrence of a Change of Control Triggering Event would cause an event of default under our senior credit facilities and therefore could cause us to have to repay amounts outstanding thereunder, and any financing arrangements it may enter into in the future may also require repayment of amounts outstanding in the event of a Change of Control Triggering Event and therefore limit our ability to fund the purchase of the Registered Notes pursuant to the Change of Control Offer (as defined in the Second Supplemental Indenture). It is possible that we will not have sufficient funds, or be able to arrange for additional financing, at the time of the Change of Control Triggering Event to make the required purchase of Registered Notes. If we have insufficient funds to purchase all the Registered Notes that holders tender for purchase pursuant to the Change of Control Offer, and we are unable to raise additional capital, an event of default would occur under the Indenture. An event of default could cause any other debt that we may have at that time to become automatically due, further exacerbating our financial condition and diminishing the value and liquidity of the Registered Notes. We cannot assure you that additional capital would be available to it on acceptable terms, or at all. See “Description of the Notes—Change of Control Triggering Event.”

Risks Related to the Exchange Offers

You may have difficulty selling the Restricted Notes that you do not exchange.

If you do not exchange your Restricted Notes for Registered Notes in the exchange offers, you will continue to be subject to the restrictions on transfer of your Restricted Notes described in the legend on your Restricted Notes and we will not be required to offer another opportunity for you to exchange your Restricted Notes for registered notes, except in limited circumstances. The restrictions on transfer of your Restricted Notes arise because we issued the Restricted Notes under exemptions from, or in transactions not subject to, the registration requirements of the Securities Act and applicable state securities laws. In general, you may offer or sell the Restricted Notes only if they are registered under the Securities Act and applicable state securities laws or are offered and sold under an exemption from these requirements. We do not intend to register the Restricted Notes under the Securities Act. We may in the future seek to acquire untendered Restricted Notes in the open market or privately negotiated transactions, through subsequent exchange offers or otherwise. We have no present plans to acquire any Restricted Notes that are not tendered in the exchange offers or to file a registration statement to permit resales of any untendered Restricted Notes. To the extent Restricted Notes are tendered and accepted in the exchange offers, the trading market, if any, for the remaining Restricted Notes would likely be adversely affected. See “Terms of the Exchange Offers—Consequences of Failure to Exchange” for a discussion of the possible consequences of failing to exchange your Restricted Notes.

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Because we anticipate that most holders of the Restricted Notes will elect to exchange their Restricted Notes, we expect that the liquidity of the market for any Restricted Notes remaining after the completion of the exchange offers will be substantially limited. Any Restricted Notes tendered and exchanged in the exchange offers will reduce the aggregate principal amount of the Restricted Notes of the applicable series outstanding. Following the exchange offers, if you do not tender your Restricted Notes you generally will not have any further registration rights, and your Restricted Notes will continue to be subject to certain transfer restrictions. Accordingly, the liquidity of the market for the Restricted Notes could be adversely affected.

You may find it difficult to sell your Registered Notes because there is no existing trading market for the Registered Notes and we cannot assure you that an active trading market will develop for the Registered Notes.

You may find it difficult to sell your Registered Notes because an active trading market for the Registered Notes may not develop. There is no existing trading market for the Registered Notes. We do not intend to apply for listing or quotation of the Registered Notes on any exchange, so we do not know the extent to which investor interest will lead to the development of a trading market or how liquid that market might be. We cannot assure you a trading market for the Registered Notes will ever develop or be maintained if developed.

Furthermore, we cannot assure you as to the liquidity of any trading market that may develop for any of the Registered Notes, whether you will be able to sell the Registered Notes, or the prices at which you may be able to sell the Registered Notes. The prices at which the Registered Notes may trade may be volatile, depending on many factors, including, but not limited to, prevailing interest rates, general economic conditions, our performance, credit ratings and financial results and markets for similar securities. As a result, the market price of the Registered Notes, as well as your ability to sell the Registered Notes, could be adversely affected.

Broker-dealers or noteholders may become subject to the registration and prospectus delivery requirements of the Securities Act.

Any broker-dealer that exchanges its Restricted Notes in the exchange offers for the purpose of participating in a distribution of the Registered Notes, or resells Registered Notes that were received by it for its own account in the exchange offers, may be deemed to have received restricted securities and may be required to comply with the registration and prospectus delivery requirements of the Securities Act in connection with any resale transaction by that broker-dealer. Any profit on the resale of the Registered Notes and any commission or concessions received by a broker-dealer may be deemed to be underwriting compensation under the Securities Act.

In addition to broker-dealers, any noteholder that exchanges its Restricted Notes in the exchange offers for the purpose of participating in a distribution of the Registered Notes may be deemed to have received restricted securities and may be required to comply with the registration and prospectus delivery requirements of the Securities Act in connection with any resale transaction by that noteholder.

You must comply with the exchange offer procedures in order to receive freely tradable Registered Notes.

Delivery of the Registered Notes in exchange for the Restricted Notes tendered and accepted for exchange pursuant to the exchange offers will be made only if such tenders comply with the exchange offer procedures described herein, including the timely receipt by the exchange agent of book-entry transfer of the Restricted Notes into such exchange agent’s account at DTC, as depositary, including an agent’s message. We are not required to notify you of defects or irregularities in tenders of Restricted Notes for exchange. The method of delivery of Restricted Notes and the letter of transmittal and all other required documents to the exchange agent is at the election and risk of the holders of the Restricted Notes.

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Consummation of the exchange offers may not occur.

Each of the exchange offers is subject to the satisfaction of certain conditions. See “Terms of the Exchange Offers—Conditions to the Exchange Offers.” Even if the exchange offers are completed, they may not be completed on the timing described in this prospectus. Accordingly, holders participating in the exchange offers may have to wait longer than expected to receive their Registered Notes, during which time such holders will not be able to effect transfers of their Restricted Notes tendered in the exchange offers. Until we announce whether we have accepted valid tenders of Restricted Notes for exchange pursuant to one of the exchange offers, no assurance can be given that such exchange offer will be completed. In addition, subject to applicable law and as provided in this prospectus, we may, in our sole discretion, extend, re-open, amend, waive any condition of or terminate any of the exchange offers at any time before our announcement of whether we will accept valid tenders of Restricted Notes for exchange pursuant to such exchange offer, which we expect to make as soon as reasonably practicable after the expiration date.

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USE OF PROCEEDS

We will not receive any cash proceeds from the issuance of the Registered Notes. In consideration for issuing the Registered Notes as contemplated in this prospectus, the Company will receive in exchange Restricted Notes in like principal amount, which will be cancelled, and, as such, issuing the Registered Notes will not result in any increase in the Company’s indebtedness.

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TERMS OF THE EXCHANGE OFFERS

Purpose and Effect of the Exchange Offers

We and the dealer managers and solicitation agents entered into a Registration Rights Agreement with respect to the Restricted Notes on December 4, 2023. Pursuant to the Registration Rights Agreement, we agreed, among other things, to use commercially reasonable efforts to (1) file a registration statement on an appropriate registration form with respect to a registered offer to exchange each series of Restricted Notes for Registered Notes, with terms substantially identical in all material respects to such series of Restricted Notes (except that the Registered Notes will not contain terms with respect to transfer restrictions or any increase in annual interest rate for failure to comply with the Registration Rights Agreement and will not have the registration rights applicable to the Restricted Notes), and (2) cause the registration statement to be declared effective under the Securities Act on or before December 4, 2024. In furtherance of the foregoing, we have filed with the SEC a registration statement on Form S-4 (File No. 333-    ) with respect to the exchange offers and the Registered Notes. We agreed to use commercially reasonable efforts to complete the exchange offer for each series of notes no later than 60 days after the registration statement is declared effective by the SEC. If any applicable law, rule, regulation or applicable interpretations of the staff of the SEC do not permit the Company to effect the exchange offers, or if the exchange offers are not consummated for any reason prior to the later of December 4, 2024 and the date on which, under certain circumstances, any dealer manager or holder so requests, the Company will be required to use commercially reasonable efforts to file a shelf registration statement under the Securities Act which would cover resales of the Restricted Notes.

After the SEC declares this exchange offer registration statement effective, we will offer the Registered Notes in return for the Restricted Notes. Each of the exchange offers will remain open for at least 20 business days (or longer if required by applicable law) after the date we electronically deliver notice of such exchange offer to the holders of the applicable Restricted Notes. For each Restricted Note surrendered to us pursuant to an exchange offer, the holder of the Restricted Note will receive a Registered Note having a principal amount equal to that of the surrendered Restricted Note. Interest on each Registered Note will accrue from the last interest payment date on which interest was paid on the Restricted Note surrendered in exchange therefor.

Under existing SEC interpretations, Registered Notes acquired in the exchange offers by holders of Restricted Notes will be freely transferable without further registration under the Securities Act if the holder of the Registered Notes is acquiring the Registered Notes in the ordinary course of its business, has no arrangement or understanding to participate in the distribution of the Registered Notes and is not an affiliate of the Company, as such terms are interpreted by the SEC; however, broker-dealers (“participating broker-dealers”) receiving Registered Notes in a registered exchange offer will also have a prospectus delivery requirement with respect to resales of such Registered Notes. The SEC has taken the position that participating broker-dealers may fulfill their prospectus delivery requirements with respect to Registered Notes (other than a resale of an unsold allotment from the original sale of the Restricted Notes) with the prospectus contained in the exchange offer registration statement relating to such Registered Notes.

This prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Registered Notes received in exchange for Restricted Notes that were acquired by such broker-dealer as a result of market-making or other trading activities. We have agreed that, for a period of up to 180 days after the expiration date of the exchange offers, if requested by one or more such broker-dealers, we will amend or supplement this prospectus in order to expedite or facilitate the disposition of any Registered Notes by any such broker-dealers.

A holder of Restricted Notes who wishes to exchange its Restricted Notes for Registered Notes in the exchange offers will be required to represent that (1) any Registered Notes to be received by it will be acquired in the ordinary course of its business, (2) at the time of the commencement of the exchange offers, it has no arrangement or understanding with any person to participate in the distribution (within the meaning of the

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Securities Act) of the Registered Notes in violation of the provisions of the Securities Act, (3) it is not an “affiliate” (within the meaning of Rule 405 under the Securities Act) of the Company, (4) if such holder is not a broker-dealer, that it is not engaged in, and does not intend to engage in, the distribution of the Registered Notes and (5) if such holder is a broker-dealer that will receive Registered Notes for its own account in exchange for Restricted Notes that were acquired as a result of market-making or other trading activities, then such holder will deliver a prospectus (or, to the extent permitted by law, make available a prospectus to purchasers) in connection with any resale of such Registered Notes. See “Plan of Distribution.”

The Registration Rights Agreement provides, among other things, that if we have not exchanged Registered Notes for all Restricted Notes validly tendered in accordance with the terms of the exchange offers on or prior to December 4, 2024 or a shelf registration statement is required under the limited circumstances set forth in the Registration Rights Agreement and such shelf registration statement is not declared effective on or prior to the later of December 4, 2024 and 60 days after delivery of a request by a dealer manager and solicitation agent for the filing of a shelf registration, the annual interest rate on the Restricted Notes will increase initially by 0.25% per annum for the first 90-day period immediately following the occurrence of such registration default. The annual interest rate on the Restricted Notes will increase by an additional 0.25% per annum for each subsequent 90-day period that such additional interest continues to accrue until such registration default ends; however, the rate at which such additional interest accrues may in no event exceed 0.50% per annum. See “Exchange Offers; Registration Rights.”

Resale of Registered Notes

Based on the position that the staff of the SEC enunciated in no-action letters addressed to Exxon Capital Holdings Corporation, Morgan Stanley & Co. Incorporated and Shearman & Sterling, the Registered Notes issued in the exchange offers may be offered for resale, resold and otherwise transferred without registration under the Securities Act, and without delivering a prospectus that satisfies the requirements of Section 10 of the Securities Act, if the holder of the Restricted Notes who wishes to exchange its Restricted Notes for Registered Notes can make the representations set forth below under “—Procedures for Tendering the Restricted Notes.” However, if such holder intends to participate in a distribution of the Registered Notes, is a broker-dealer that acquired the Restricted Notes directly from us for its own account in the initial offering of the Restricted Notes and not as a result of market-making activities or other trading activities or is an “affiliate” of the Company as defined in Rule 405 under the Securities Act, such holder will not be eligible to participate in the exchange offers, and must comply with the registration and prospectus delivery requirements of the Securities Act in connection with the resale of its Restricted Notes. See “—Additional Obligations” below.

A broker-dealer that has acquired Restricted Notes as a result of market-making or other trading activities has to deliver a prospectus in order to resell any Registered Notes it receives for its own account in the exchange offers. This prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Registered Notes received in exchange for Restricted Notes that were acquired by such broker-dealer as a result of market-making or other trading activities. We have agreed that, for a period of up to 180 days after the expiration date of the exchange offers, if requested by one or more such broker-dealers, we will amend or supplement this prospectus in order to expedite or facilitate the disposition of any Registered Notes by any such broker-dealers. See “Plan of Distribution” for more information regarding broker-dealers.

The exchange offers are not being made to, nor will we accept tenders for exchange from, holders of Restricted Notes in any jurisdiction in which these exchange offers or the acceptance of the exchange offers would not be in compliance with the securities or blue sky laws.

Terms of the Exchange Offers

Upon the terms and subject to the conditions set forth in this prospectus and in the letter of transmittal, we will accept for exchange any and all Restricted Notes properly tendered and not withdrawn prior to the expiration

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time. The Restricted Notes may only be tendered in denominations of $2,000 and integral multiples of $1,000 in excess of $2,000. We will issue $2,000 principal amount or an integral multiple of $1,000 of Registered Notes in exchange for a corresponding principal amount of Restricted Notes surrendered in the exchange offers. In exchange for each Restricted Note surrendered in the exchange offers, we will issue a Registered Note with a like principal amount.

The form and terms of the Registered Notes will be substantially identical in all material respects to the form and terms of the Restricted Notes, except that the Registered Notes will not be subject to restrictions on transfer or to any increase in annual interest rate for failure to comply with the Registration Rights Agreement and will not have the registration rights applicable to the Restricted Notes.

The Registered Notes will evidence the same debt as the Restricted Notes. The Registered Notes will be issued under and entitled to the benefits of the same indenture that authorized the issuance of the Restricted Notes. Consequently, each series of Registered Notes and the corresponding Restricted Notes that are not exchanged in the applicable exchange offer will be treated as a single series of debt securities under the Indenture.

The exchange offers are not conditioned upon any minimum aggregate principal amount of Registered Notes being tendered for exchange. None of the exchange offers is conditioned on the consummation of any of the other exchange offers.

There will be no fixed record date for determining registered holders of Restricted Notes entitled to participate in the exchange offers.

We intend to conduct the exchange offers in accordance with the provisions of the Registration Rights Agreement, the applicable requirements of the Securities Act and the Exchange Act, and the rules and regulations of the SEC. Restricted Notes that are not tendered for exchange in the exchange offers will remain outstanding and continue to accrue interest and will be entitled to the rights and benefits such holders have under the Indenture.

We will be deemed to have accepted for exchange properly tendered Restricted Notes when we have given written notice of the acceptance to the exchange agent. The exchange agent will act as agent for the tendering holders for the purposes of receiving the Registered Notes from the Company and delivering the Registered Notes to such holders. Subject to the terms of the exchange offers and the Registration Rights Agreement, we expressly reserve the right to amend or terminate any of the exchange offers, and to not accept for exchange any Restricted Notes not previously accepted for exchange.

We will pay all charges and expenses, other than those brokerage commissions or fees or transfer or other taxes described below, in connection with the exchange offers. It is important that you read the section titled “—Fees and Expenses” below for more details regarding fees and expenses incurred in the exchange offers.

Expiration Time; Extensions; Amendments

Each of the exchange offers will expire at 5:00 p.m., New York City time, on     , 2024, unless, in our sole discretion, we extend the expiration time of such exchange offer.

In order to extend the exchange offers, we will notify the exchange agent in writing of any extension of such exchange offer. We will notify registered holders of the applicable Restricted Notes in writing or by public announcement of the extension, if any, of the expiration time by no later than 9:00 a.m., New York City time, on the business day after the previously scheduled expiration time.

We expressly reserve the right, in our sole discretion:

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Any such delay in acceptance, extension or termination will be followed as promptly as practicable by written notice or public announcement thereof to the registered holders of Restricted Notes. If we amend any of the exchange offers in a manner that we determine to constitute a material change, we will promptly disclose such amendment in a manner reasonably calculated to inform the holders of the relevant Restricted Notes of such amendment.

Without limiting the manner in which we may choose to make public announcements of any delay in acceptance, extension, termination or amendment of any of the exchange offers, we shall have no obligation to publish, advertise or otherwise communicate any such public announcement other than by issuing a timely press release to a financial news service. If we make any material change to any of the exchange offers, we will disclose this change by means of a post-effective amendment to the registration statement that includes this prospectus and will distribute an amended or supplemented prospectus to each registered holder of relevant Restricted Notes. In addition, we will extend the relevant exchange offer(s) for an additional five to ten business days as required by the Exchange Act, depending on the significance of the amendment, if the exchange offer(s) would otherwise expire during that period. We will promptly notify the exchange agent by written notice of any delay in acceptance, extension, termination or amendment of any of the exchange offers.

Conditions to the Exchange Offers

Notwithstanding any other terms of the exchange offers, we will not be required to accept for exchange, or exchange any Registered Notes for, any Restricted Notes, and we may terminate any of the exchange offers as provided in this prospectus before accepting any Restricted Notes for exchange, if we determine in our sole discretion:

In addition, we will not be obligated to accept for exchange the Restricted Notes of any holder that has not made the representations described in the letter of transmittal and under “—Purpose and Effect of the Exchange Offers,” “—Procedures for Tendering the Restricted Notes” and “Plan of Distribution,” and such other representations as may be reasonably necessary under applicable SEC rules, regulations or interpretations to make available to it an appropriate form for registration of the Registered Notes under the Securities Act.

We expressly reserve the right, at any time or at various times, to extend the period of time during which any of the exchange offers are open. Consequently, we may delay acceptance of any Restricted Notes by giving written notice (including by public announcement) of such extension to the registered holders of the relevant Restricted Notes as promptly as practicable. During any such extensions, all relevant Restricted Notes previously tendered will remain subject to the applicable exchange offers, and we may accept them for exchange unless they have been previously withdrawn. We will return any Restricted Notes that we do not accept for exchange for any reason without expense to the tendering holder promptly after the expiration or termination of the exchange offers.

We expressly reserve the right to amend or terminate any of the exchange offers, and to reject for exchange any Restricted Notes not previously accepted for exchange, upon the occurrence of any of the conditions of the

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exchange offers specified above. We will give written notice or public announcement of any extension, amendment, non-acceptance or termination to the registered holders of the relevant Restricted Notes as promptly as practicable. In the case of any extension, such notice will be issued no later than 9:00 a.m., New York City time, on the business day after the previously scheduled expiration time.

These conditions are for our sole benefit, and we may assert them regardless of the circumstances that may give rise to them or waive them in whole or in part at any or at various times in our sole discretion; provided that any waiver of a condition of tender with respect to any of the exchange offers will apply to all of the relevant, outstanding Restricted Notes and not only to particular relevant Restricted Notes. If we fail at any time to exercise any of the foregoing rights, that failure will not constitute a waiver of such right. Each such right will be deemed an ongoing right that we may assert at any time or at various times.

In addition, we will not accept for exchange any Restricted Notes tendered, and will not issue Registered Notes in exchange for any such Restricted Notes, if at such time any stop order will be threatened or in effect with respect to the registration statement of which this prospectus constitutes a part or the qualification of the Indenture under the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”).

Procedures for Tendering the Restricted Notes

Except as described below, a holder tendering Restricted Notes must, prior to 5:00 p.m., New York City time, on the expiration date:

Transmittal will be deemed made only when actually received or confirmed by the exchange agent.

In addition, the exchange agent must receive, before 5:00 p.m., New York City time, on the expiration date book-entry transfer of the Restricted Notes into the exchange agent’s account at DTC, the book-entry transfer facility.

The term “agent’s message” means a computer-generated message, transmitted by DTC to, and received by, the exchange agent and forming a part of a book-entry confirmation, which states that DTC has received an express acknowledgment from the tendering participant that such participant has received and agrees to be bound by, and makes the representations and warranties contained in, the letter of transmittal and that we may enforce the letter of transmittal against such participant.

The method of delivery of Restricted Notes, letters of transmittal and all other required documents is at the holder’s election and risk. If delivery is by mail, we recommend that holders use registered mail, properly insured, with return receipt requested. In all cases, holders should allow sufficient time to assure timely delivery. Holders should not send letters of transmittal or Restricted Notes to anyone other than the exchange agent.

If the holder is a beneficial owner whose Restricted Notes are registered in the name of a broker, dealer, commercial bank, trust company or other nominee and wishes to tender, such holder should promptly instruct the registered holder to tender on its behalf. Any registered holder that is a participant in DTC’s book-entry transfer facility system may make book-entry delivery of the Restricted Notes by causing DTC to transfer the Restricted Notes into the exchange agent’s account.

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Signatures on a letter of transmittal or a notice of withdrawal must be guaranteed unless the Restricted Notes surrendered for exchange are tendered:

If signatures on a letter of transmittal or a notice of withdrawal are required to be guaranteed, the guarantees must be by an “eligible institution.” An “eligible institution” is a financial institution, including most banks, savings and loan associations and brokerage houses, that is a participant in the Securities Transfer Agents Medallion Program or the New York Stock Exchange Medallion Signature Program.

We will reasonably determine all questions as to the validity, form and eligibility of Restricted Notes tendered for exchange and all questions concerning the timing of receipts and acceptance of tenders. These determinations will be final and binding.

We reserve the right to reject any particular Restricted Note not validly tendered, or any acceptance that might, in our judgment, be unlawful. We also reserve the right to waive any defects or irregularities with respect to the form of, or procedures applicable to, the tender of any particular Restricted Note before the expiration date. Unless waived, any defects or irregularities in connection with tenders of Restricted Notes must be cured before the expiration date of the applicable exchange offer. None of the Company, the exchange agent or any other person will be under any duty to give notification of any defect or irregularity in any tender of the Restricted Notes. None of the Company, the exchange agent or any other person will incur any liability for failing to give notification of any defect or irregularity.

If the letter of transmittal is executed by a person other than the registered holder of Restricted Notes, the letter of transmittal must be accompanied by the Restricted Notes endorsed by the registered holder or written instrument of transfer or exchange in satisfactory form, duly executed by the registered holder, in either case with the signature guaranteed by an eligible institution. In addition, in either case, the original endorsement or the instrument of transfer must be signed exactly as the name of any registered holder appears on the Restricted Notes.

If the letter of transmittal or any Restricted Notes or powers of attorney are signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, these persons should so indicate when signing. Unless waived by us, proper evidence satisfactory to us of their authority to so act must be submitted.

All questions as to the form of documents and validity, eligibility (including time of receipt), acceptance for exchange and withdrawal of tendered Restricted Notes will be determined by the Company in its sole discretion, and its determination will be final and binding.

By signing or agreeing to be bound by the letter of transmittal, each tendering holder of Restricted Notes will represent, among other things, that:

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Acceptance of Restricted Notes for Exchange; Delivery of Registered Notes

Upon satisfaction of all of the conditions to the applicable exchange offer, we will accept, promptly after the expiration date, all relevant Restricted Notes validly tendered and not validly withdrawn. We will issue the Registered Notes promptly after the expiration of the applicable exchange offer and acceptance of the relevant Restricted Notes. See “—Conditions to the Exchange Offers” above. For purposes of the exchange offers, we will be deemed to have accepted validly tendered Restricted Notes for exchange when, as and if we have given written notice of such acceptance to the exchange agent.

For each Restricted Note accepted for exchange, the holder of the Restricted Note will receive a Registered Note having a principal amount equal to that of the surrendered Restricted Note. Restricted Notes accepted for exchange will cease to accrue interest from and after the date of completion of the exchange offers. Holders of Restricted Notes whose Restricted Notes are accepted for exchange will not receive any payment for accrued interest on the Restricted Notes otherwise payable on any interest payment date, the record date for which occurs on or after completion of the exchange offers and will be deemed to have waived their rights to receive such accrued interest on the Restricted Notes.

In all cases, issuance of Registered Notes for Restricted Notes will be made only after timely receipt by the exchange agent of:

Unaccepted or non-exchanged Restricted Notes will be returned without expense to the tendering holder of the Restricted Notes promptly after the expiration of the applicable exchange offer. In the case of Restricted Notes tendered by book-entry transfer in accordance with the book-entry procedures described below, the non-exchanged Restricted Notes will be returned or recredited promptly after the expiration of the applicable exchange offer.

Book-Entry Transfer

The exchange agent will make a request to establish an account for the Restricted Notes at DTC for purposes of the exchange offers within two business days after the date of this prospectus. Any financial institution that is a participant in DTC’s systems and is tendering Restricted Notes must make book-entry delivery of the Restricted Notes by causing DTC to transfer those Restricted Notes into the exchange agent’s account at DTC in accordance with DTC’s procedures for transfer, including its ATOP procedures. The participant should transmit its acceptance to DTC prior to 5:00 p.m., New York City time, on the expiration date. DTC will verify this acceptance, execute a book-entry transfer of the tendered Restricted Notes into the exchange agent’s account at DTC and then send to the exchange agent confirmation of this book-entry transfer, which confirmation must be received prior to 5:00 p.m., New York City time, on the expiration date. The confirmation of this book-entry transfer will include an agent’s message confirming that DTC has received an express acknowledgment from the participant that the participant has received and agrees to be bound by the letter of transmittal and that we may enforce the letter of transmittal against the participant. Delivery of Registered Notes issued in the exchange offers may be effected through book-entry transfer at DTC. However, the letter of

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transmittal (or an agent’s message in lieu thereof), with any required signature guarantees and any other required documents, must be transmitted to, and received by, the exchange agent at the address listed below under “—Exchange Agent” (or its account at DTC with respect to an agent’s message) prior to 5:00 p.m., New York City time, on the expiration date.

Withdrawal of Tenders

Except as otherwise provided in this prospectus, holders of Restricted Notes may withdraw (and resubmit) their tenders at any time prior to the expiration of the applicable exchange offers. For a withdrawal to be effective, the exchange agent must receive a written notice of withdrawal at one of the addresses set forth below under “—Exchange Agent,” or the holder must comply with the appropriate procedure of DTC’s ATOP system.

Any such notice of withdrawal must specify the name of the person who tendered the Restricted Notes to be withdrawn, identify the Restricted Notes to be withdrawn (including the principal amount of such Restricted Notes and the CUSIPs and total principal amount of such Restricted Notes) and, where Restricted Notes have been transmitted via ATOP, specify the name in which such Restricted Notes were registered if different from that of the withdrawing holder. Any such notice of withdrawal must also be signed by the person having tendered the Restricted Notes to be withdrawn in the same manner as the original signature on the letter of transmittal by which these Restricted Notes were tendered, including any required signature guarantees, or be accompanied by documents of transfer sufficient to permit the trustee for the Restricted Notes to register the transfer of these notes into the name of the person having made the original tender and withdrawing the tender and, if applicable because the Restricted Notes have been tendered through the book-entry procedure, specify the name and number of the participant’s account at DTC to be credited if different than that of the person having tendered the Restricted Notes to be withdrawn.

If certificates for Restricted Notes have been delivered or otherwise identified to the exchange agent, then, prior to the release of such certificates, the withdrawing holder must also submit the serial numbers of the particular certificates to be withdrawn and a signed notice of withdrawal with signatures guaranteed by an eligible guarantor institution unless such holder is an eligible guarantor institution.

If Restricted Notes have been tendered pursuant to the procedure for book-entry transfer described above, any notice of withdrawal must specify the name and number of the account at DTC to be credited with the withdrawn Restricted Notes and otherwise comply with the procedures of such facility. We will determine all questions as to the validity, form and eligibility (including time of receipt) of such notices, and our determination shall be final and binding on all parties. We will deem any Restricted Notes so withdrawn not to have been validly tendered for exchange for purposes of the exchange offers. Any Restricted Notes that have been tendered for exchange but that are not exchanged for any reason will be returned to their holder without cost to the holder (or, in the case of Restricted Notes tendered by book-entry transfer into the exchange agent’s account of DTC according to the procedures described above, such Restricted Notes will be credited to an account maintained with DTC for Restricted Notes) promptly after withdrawal, rejection of tender or termination of the applicable exchange offer. Properly withdrawn Restricted Notes may be retendered by following one of the procedures described under “—Procedures for Tendering the Restricted Notes” above at any time prior to the expiration time.

Exchange Agent

Computershare Trust Company, N.A. has been appointed as exchange agent for the exchange offers. You should direct questions and requests for assistance or requests for additional copies of this prospectus, or the letter of transmittal, to the exchange agent addressed as follows:

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Computershare Trust Company, N.A., Exchange Agent

By Registered or Certified Mail, Overnight Delivery

1505 Energy Park Drive

St. Paul, MN 55108

Attention: CTSO Mail Operations

For Information Call:

(800) 344-5128

For Facsimile Transmission (for Eligible Institutions only):

(877) 407-4679

Delivery to an address other than as set forth above does not constitute a valid delivery to the exchange agent.

Fees and Expenses

We will not make any payment to brokers, dealers or others soliciting acceptances of the exchange offers. We have agreed under the Registration Rights Agreement to pay all expenses incident to the exchange offers other than commissions or concessions of any broker-dealers and will indemnify the holders of the Restricted Notes and the Registered Notes (including any broker-dealers) against certain liabilities, including liabilities under the Securities Act. The cash expenses to be incurred in connection with the exchange offers, including out-of-pocket expenses for the exchange agent, will be paid by the Company. We will not pay for underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of Restricted Notes by a holder.

Consequences of Failure to Exchange

Holders of Restricted Notes who do not exchange their Restricted Notes for Registered Notes under the exchange offers will remain subject to the restrictions on transfer of such Restricted Notes as set forth in the legend printed on the Restricted Notes as a consequence of the issuance of the Restricted Notes pursuant to the exemptions from, or in transactions not subject to, the registration requirements of the Securities Act and applicable state securities laws and otherwise as set forth in the offering memorandum distributed in connection with the private placement offering of the Restricted Notes.

In general, you may not offer or sell the Restricted Notes unless they are registered under the Securities Act or if the offer or sale is exempt from registration under the Securities Act and applicable state securities laws. Except as required by the Registration Rights Agreement, we do not intend to register resales of the Restricted Notes under the Securities Act. Based on interpretations of the SEC staff, Registered Notes issued pursuant to the exchange offers may be offered for resale, resold or otherwise transferred by their holders (other than any such holder that is the Company’s “affiliate” within the meaning of Rule 405 under the Securities Act) without compliance with the registration and prospectus delivery provisions of the Securities Act, so long as the holders acquired the Registered Notes in the ordinary course of the holders’ business and the holders have no arrangement or understanding with respect to the distribution of the Registered Notes to be acquired in the exchange offers. Any holder who tenders in the exchange offers for the purpose of participating in a distribution of the Registered Notes cannot rely on the applicable interpretations of the SEC and must comply with the registration and prospectus delivery requirements of the Securities Act in connection with a secondary resale transaction.

We do not currently anticipate that we will register under the Securities Act any Restricted Notes that remain outstanding after completion of the exchange offers. See “Risk Factors—Risks Related to the Exchange Offers—You may have difficulty selling the Restricted Notes that you do not exchange.”

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Accounting Treatment

We will record the Registered Notes in our accounting records at the same carrying value as the Restricted Notes for which they were exchanged in respect of the offer made pursuant to this prospectus, as reflected in our accounting records on the date of exchange. Accordingly, we will not recognize any gain or loss for accounting purposes in connection with the exchange offers. We will expense the costs of the exchange offers and amortize the remaining unamortized expenses related to the issuance of the Restricted Notes over the term of the Registered Notes.

Additional Obligations

In the Registration Rights Agreement, we agreed that under certain circumstances we would file a shelf registration statement with the SEC covering resales of notes by holders thereof if:

In such an event, we would be under a continuing obligation to use commercially reasonable efforts to keep the shelf registration statement effective and to provide copies of the latest version of the prospectus contained therein to any broker-dealer that requests copies for use in a resale.

Other

Participation in the exchange offers is voluntary, and you should carefully consider whether to accept. You are urged to consult your financial and tax advisors in making your own decision on what action to take. We may in the future seek to acquire untendered Restricted Notes in the open market or privately negotiated transactions, through subsequent exchange offers or otherwise. We have no present plans to acquire any Restricted Notes that are not tendered in the exchange offers or to file a registration statement to permit resales of any untendered Restricted Notes.

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DESCRIPTION OF THE NOTES

The following summary description sets forth certain terms and provisions of the Registered Notes. Because this description is a summary, it does not describe every aspect of the Registered Notes. The Registered Notes will be issued under the Indenture. This summary is subject to, and is qualified in its entirety by reference to, the Indenture and the forms of Registered Notes.

The Indenture has been qualified under the Trust Indenture Act, and you should refer to the Trust Indenture Act for provisions that apply to the Registered Notes.

In this “Description of the Notes” section, when we refer to the “Issuer,” “Company,” “HF Sinclair,” “we,” “our,” or “us,” we refer to HF Sinclair Corporation and any successor obligor and not to any of its subsidiaries.

General

The Restricted Notes were, and the Registered Notes will be, issued by HF Sinclair Corporation, a Delaware corporation.

The Restricted Notes were, and the Registered Notes will be, issued pursuant to the Indenture.

The terms of each series of the Registered Notes will be substantially identical in all material respects to the terms of the corresponding series of Restricted Notes, except that the Registered Notes will not be subject to restrictions on transfer or to any increase in annual interest rate for failure to comply with the Registration Rights Agreement and will not have the registration rights applicable to the Restricted Notes. The trustee will authenticate and deliver Registered Notes for original issue only in exchange for a like principal amount of Restricted Notes.

Each series of the Registered Notes constitutes a separate series under the Indenture. The Registered Notes are not subject to any sinking fund provision.

The following table sets forth the title (including the interest rate), maturity date, aggregate principal amount outstanding and interest payment dates of each series of Registered Notes offered.

We will initially issue the Registered Notes in book-entry form. See “Book-Entry Settlement and Clearance.” We will issue the Registered Notes only in fully registered form, without coupons, in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof.

We may, without the consent of the holders of the Registered Notes of any series (or the Restricted Notes of such series, if any remain outstanding following the exchange offers), issue additional Registered Notes (the “Additional Registered Notes”) of such series under the Indenture having the same ranking and the same interest rate, maturity and other terms as the Registered Notes of such series that are offered hereby (the “Initial Registered Notes”); provided that any Additional Registered Notes that are not fungible, for U.S. federal income tax purposes, with the corresponding series of Initial Registered Notes will have a separate CUSIP, ISIN and

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other identifying number. Any Additional Registered Notes of a series will, together with any Restricted Notes of such series that remain outstanding following the exchange offers and the Initial Registered Notes of such series, constitute a single series of notes under the Indenture.

Unless the context otherwise requires, as used in this Description of the Notes, (1) the term “Registered Notes” includes the Initial Registered Notes and any Additional Registered Notes that may be subsequently issued under the Indenture and (2) the term “Notes” includes the Registered Notes and any Restricted Notes that remain outstanding following the exchange offers.

Maturity of Notes

Each Registered Note will mature on the same date as the Restricted Note exchanged for it. Such maturity dates are set forth in the table under the heading “—General.”

Interest Rate on Notes

The Registered Notes of each series will bear interest at the applicable annual rate set forth in the table under the heading “—General.” Interest on each Registered Note will accrue from the last interest payment date on which interest was paid on the Restricted Note surrendered in exchange therefor. No accrued interest will be paid on the date of issuance of the Registered Notes in respect of the Restricted Notes accepted for exchange.

The holders of the Restricted Notes that are accepted for exchange will be deemed to have waived the right to receive payment of accrued interest on those Restricted Notes from the last interest payment date on which interest was paid or duly provided for on such Restricted Notes to the date of issuance of the Registered Notes. Interest on the Restricted Notes accepted for exchange will cease to accrue upon issuance of the Registered Notes. Interest on the Registered Notes is payable semi-annually, in arrears, on the applicable interest payment dates set forth in the table under the heading “—General” to the persons in whose names the Registered Notes are registered at the close of business on the preceding interest payment record date (or, if such interest payment record date occurs prior to the issuance of the Registered Notes, to the persons in whose names the Restricted Notes of the corresponding series are registered at the close of business on such date), except that interest payable at maturity of the Registered Notes shall be paid to the same persons to whom principal of such Registered Notes is payable. If the interest payment date is not a business day at the relevant place of payment, payment of interest will be made on the next day that is a business day at such place of payment. A “business day” means any day that is not a Saturday or Sunday and that is not a day on which banking institutions are generally authorized or obligated by law to close in The City of New York and, for any place of payment outside of The City of New York, in such place of payment. Interest on the Registered Notes will be computed on the basis of a 360-day year consisting of twelve 30-day months.

2027 Registered Notes

The 2027 Registered Notes will bear interest at the rate of 6.375% per annum.

2028 Registered Notes

The 2028 Registered Notes will bear interest at the rate of 5.000% per annum.

Optional Redemption

The Registered Notes are redeemable by us at our option, at any time and from time to time prior to their maturity, as provided below.

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2027 Registered Notes

With respect to any redemption of the 2027 Registered Notes, the Company may redeem all or part of the 2027 Registered Notes at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest, if any, on the 2027 Registered Notes redeemed to, but excluding, the applicable redemption date of such 2027 Registered Notes, if redeemed during the twelve-month period beginning on April 15 of each year indicated below, subject to the rights of holders of such 2027 Registered Notes on the relevant record date to receive interest due on an interest payment date that is on or prior to such redemption date:

2028 Registered Notes

With respect to any redemption of the 2028 Registered Notes, the Company may redeem all or part of the 2028 Registered Notes at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest, if any, on the 2028 Registered Notes redeemed to, but excluding, the applicable redemption date of such 2028 Registered Notes, if redeemed during the twelve-month period beginning on February 1 of each year indicated below, subject to the rights of holders of such 2028 Registered Notes on the relevant record date to receive interest due on an interest payment date that is on or prior to such redemption date:

Notices of Redemption

We will mail (or send electronically, if DTC is the recipient) a notice of redemption at least 10 days, but not more than 60 days, before the redemption date to each holder of the respective series notes to be redeemed. If we elect to partially redeem the Registered Notes of any series, the trustee will select the Registered Notes to be redeemed in compliance with the requirements of the principal national securities exchange, if any, on which such Registered Notes are listed, or if such Registered Notes are not so listed, then on a pro rata basis (or, in the case of Registered Notes in global form, such Registered Notes will be selected for redemption using the method prescribed by DTC).

Any such redemption may, at our discretion, be conditioned upon the closing of another transaction, including a sale of securities or other financing, in each case as specified in the notice in reasonable detail. A notice of conditional redemption will be of no effect unless all conditions to the redemption have occurred on or before the redemption date or have been waived by us on or before the redemption date. We will provide notice of the satisfaction of all conditions as soon as practicable following occurrence of the conditions. We will provide notice of any waiver of a condition or failure to meet such condition no later than the redemption date.

Unless we default in payment of the redemption price, on and after the redemption date, interest will cease to accrue on the Registered Notes or portions thereof called for redemption.

Further Issuances

The Indenture does not limit the aggregate principal amount of debt securities that may be issued thereunder, and following the issuance of the Registered Notes offered hereby, debt securities may be issued

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thereunder from time to time in one or more additional series. HF Sinclair may also “reopen” each series of Registered Notes offered hereby and issue an unlimited principal amount of additional Registered Notes of either series in the future without the consent of any holder of the Registered Notes of such series; provided that if the additional Registered Notes are not fungible with the applicable series of Registered Notes offered hereby for U.S. federal income tax purposes, the additional Registered Notes will have a separate CUSIP number.

Ranking

The Registered Notes will be unsecured, rank equally in right of payment with all the existing and future unsubordinated debt of HF Sinclair, be senior to any future subordinated debt of HF Sinclair, be effectively subordinated to any existing and future secured debt and other secured liabilities of HF Sinclair to the extent of the value of the assets securing such indebtedness or other liabilities and be structurally junior to all existing and future debt and other liabilities of our subsidiaries.

Change of Control Triggering Event

If a Change of Control Triggering Event occurs with respect to a series of Registered Notes, each holder will have the right, except as described below, to require us to purchase all or any part of such holder’s Registered Notes of such series at a purchase price in cash equal to 101% of the principal amount of such Registered Notes plus accrued and unpaid interest, if any, to the date of purchase (subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date).

Within 30 days following any Change of Control Triggering Event with respect to a series of Registered Notes, unless we have previously or concurrently exercised our right to redeem all such Registered Notes, we will send a notice (the “Change of Control Offer”) to each holder, with a copy to the trustee, stating, among other things:

On the Change of Control Payment Date, we will, to the extent lawful:

We will not be required to make a Change of Control Offer upon a Change of Control Triggering Event with respect to a series of Registered Notes if (1) a third party makes such Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in the Indenture applicable to a Change of Control Offer made by us and purchases all Registered Notes validly tendered and not properly withdrawn under

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such Change of Control Offer, (2) notice of redemption with respect to such Registered Notes has been given pursuant to the Indenture unless and until there is a default in payment of the applicable redemption price, or (3) in connection with or in contemplation of any Change of Control, we have made an offer to purchase (an “Alternate Offer”) any and all such Registered Notes validly tendered at a cash price equal to or higher than the Change of Control Payment and have purchased all such Registered Notes properly tendered and not withdrawn in accordance with the terms of such Alternate Offer.

A Change of Control Offer may be made in advance of a Change of Control Triggering Event, and conditioned upon the occurrence of a Change of Control Triggering Event, if a definitive agreement is in place for the Change of Control at the time of making the Change of Control Offer.

We will comply, to the extent applicable, with the requirements of Rule 14e-1 of the Exchange Act and any other securities laws or regulations in connection with the repurchase of Registered Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any securities laws or regulations conflict with provisions of this covenant, we will comply with the applicable securities laws and regulations and will not be deemed to have breached our obligation in the Indenture by virtue of our compliance with such securities laws or regulations.

If holders of not less than 90% in aggregate principal amount of the outstanding Registered Notes of a series validly tender and do not withdraw such notes in a Change of Control Offer or Alternate Offer we, or any third party making a Change of Control Offer in lieu of us as described above, purchases all of such Registered Notes validly tendered and not withdrawn by such holders, we will have the right, upon not less than 10 nor more than 60 days’ prior notice, given not more than 30 days following such purchase pursuant to the Change of Control Offer or Alternate Offer described above, to redeem all such Registered Notes that remain outstanding following such purchase at a redemption price in cash equal to the applicable Change of Control Payment plus, to the extent not included in the Change of Control Payment, accrued and unpaid interest, if any, to the date of redemption (subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date).

The definition of “Change of Control” includes a disposition of all or substantially all of the assets of the Company and its Subsidiaries taken as a whole to any person. Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise established definition of the phrase under applicable law. Accordingly, in certain circumstances there may be a degree of uncertainty as to whether a particular transaction would involve a disposition of “all or substantially all” of the assets of a person. As a result, it may be unclear as to whether a Change of Control Triggering Event has occurred and whether a holder of Registered Notes may require the Company to make an offer to purchase the Registered Notes as described above.

The provisions under the Indenture relative to our obligation to make an offer to purchase each series of Registered Notes as a result of a Change of Control Triggering Event may be waived or modified or terminated with the consent of the holders of a majority of the principal amount of such Registered Notes then outstanding (including consents obtained in connection with a tender offer or exchange offer for the Registered Notes), whether before or after the occurrence of such Change of Control Triggering Event.

Certain Covenants

The Indenture contains the following covenants in respect of the Registered Notes offered hereby.

Limitation on Liens

So long as any Registered Notes are outstanding, neither we nor any of our Principal Domestic Subsidiaries will create or assume any liens upon any Principal Property or capital stock of any of our Principal Domestic Subsidiaries to secure any indebtedness for money borrowed, unless the Registered Notes, together with any

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other debt securities we may issue under the Indenture (and, if we so determine, any other indebtedness ranking equally with the Registered Notes) are secured equally and ratably with or prior to the indebtedness secured by the lien, for so long as such indebtedness is secured.

However, this covenant excludes the following liens (“Permitted Liens”):

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Notwithstanding the preceding, we and any of our Principal Domestic Subsidiaries may create or assume any lien upon any Principal Property or capital stock of any of our Principal Domestic Subsidiaries to secure any indebtedness for money borrowed (other than debt securities issued under the Indenture), which lien is not already excepted from this covenant as a Permitted Lien, without securing the Registered Notes or any other series of debt securities then outstanding, provided that the aggregate principal amount of all such indebtedness then outstanding secured by such lien and all other similar liens other than Permitted Liens, together with all Attributable Indebtedness then outstanding from sale/leaseback transactions, excluding sale-leaseback transactions permitted in the second paragraph under “—Limitations on Sale/Leaseback Transactions” below, does not exceed 15% of our Consolidated Adjusted Net Assets at the time of incurrence.

Limitations on Sale/Leaseback Transactions

The Indenture also provides that, for so long as any Registered Notes are outstanding, neither we nor our Principal Domestic Subsidiaries will enter into any sale/leaseback transactions with regard to any Principal Property, providing for the leasing back to us or a Principal Domestic Subsidiary by a third party for a period of more than three years of such Principal Property which has been or is to be sold or transferred by us or such Principal Domestic Subsidiary to such third party or to any other person.

This covenant has exceptions that permit transactions of this nature under the following circumstances:

In addition, we are permitted to enter into sale/leaseback transactions with Holly Logistic Services, L.L.C., Holly Energy Partners, L.P. and their respective subsidiaries without any limitations.

Notwithstanding the preceding, we may, and may permit any of our Principal Domestic Subsidiaries to, enter into any sale/leaseback transaction that is not excepted above, provided that the Attributable Indebtedness from such sale/leaseback transaction, together with the aggregate principal amount of then outstanding indebtedness (other than debt securities issued under the Indenture) secured by liens (other than Permitted Liens) upon Principal Properties, does not exceed 15% of our Consolidated Adjusted Net Assets at the time of such transaction.

Limitation on Consolidation, Merger, Conveyance or Transfer on Certain Terms

The Indenture provides that we will consolidate with or merge into any entity or transfer or dispose of all or substantially all of our assets to any entity only if:

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Reports

The Indenture provides that we will file with the trustee, within 30 days after we are required to file the same with the SEC, copies of the annual reports and of the information, documents and other reports (or copies of such portions of any of the foregoing as the SEC may from time to time by rules and regulations prescribe) which we may be required to file with the SEC pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934; or, if we are not required to file information, documents or reports pursuant to either of said sections, then we will file with the SEC, in accordance with rules and regulations prescribed from time to time by the SEC, such of the supplementary and periodic information, documents and reports which may be required pursuant to Section 13 of the Exchange Act in respect of a security listed and registered on a national securities exchange as may be prescribed from time to time in such rules and regulations and shall file a copy thereof with the trustee within 30 days after such supplementary and periodic information, documents and reports would have been required to be filed with the SEC.

For purposes of the section under the heading “—Reports,” any such document or report that we file with the SEC via the EDGAR system shall be deemed to be filed with the trustee at the time such documents are filed via EDGAR.

Any and all defaults or Events of Default arising from a failure to furnish or file in a timely manner any information or report required by the Indenture shall be deemed cured (and we shall be deemed to be in compliance with the section under the heading “—Reports”) upon furnishing or filing such information or report as contemplated by this covenant (but without regard to the date on which such information or report is so furnished or filed); provided that such cure shall not otherwise affect the rights of the holders under the Indenture if principal, premium, if any, and interest have been accelerated in accordance with the terms of the Indenture and such acceleration has not been rescinded or cancelled prior to such cure.

Delivery of such reports, information and documents to the trustee is for informational purposes only and the trustee’s receipt of such shall not constitute actual or constructive notice of any information contained therein or determinable from information contained therein, including our compliance with any of our covenants under the Indenture (as to which the trustee is entitled to rely exclusively on officers’ certificates).

Events of Default

The following are events of default under the Indenture with respect to a series of Registered Notes issued under the Indenture:

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If an event of default for any series of Registered Notes occurs and is continuing, the trustee or the holders of at least 25% in principal amount of the outstanding Registered Notes of the series affected by the default may declare the principal amount of and accrued interest on all the Registered Notes of that series to be due and payable immediately. If an event of default relating to certain events of bankruptcy, insolvency or reorganization occurs, the principal of and accrued interest on all the Registered Notes issued under the Indenture will become immediately due and payable without any action on the part of the trustee or any holder.

After any declaration of acceleration of a series of Registered Notes, but before a judgment or decree for payment has been obtained, the event of default giving rise to the declaration of acceleration will, without further act, be deemed to have been waived, and such declaration and its consequences will, without further act, be deemed to have been rescinded and annulled if:

In most cases, the trustee will be under no obligation to exercise any of its rights or powers under the Indenture at the request or direction of any of the holders, unless the holders have offered to the trustee indemnity satisfactory to the trustee. Subject to this provision for indemnification, the holders of a majority in aggregate principal amount of the outstanding Registered Notes of any series may direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the Registered Notes of that series.

The Indenture requires us to furnish to the trustee annually a statement as to our performance of our obligations under the Indenture and as to any default in performance.

Modification and Waiver

HF Sinclair may modify or amend the Indenture without the consent of any holders of the Registered Notes in certain circumstances, including to:

HF Sinclair may modify or amend the Indenture with the consent of the holders of a majority in principal amount of the outstanding Registered Notes of each series affected by the modification or amendment. Without the consent of the holder of each outstanding Registered Note affected, however, no modification may:

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For the avoidance of doubt, the provisions described above under “—Change of Control Triggering Event” and related definitions as they relate to a series of Registered Notes, respectively, may be amended with the consent of the holders a majority in aggregate principal amount of such series of Registered Notes. The holders of a majority in aggregate principal amount of the outstanding Registered Notes of each series may waive past defaults by HF Sinclair under the Indenture with respect to the Registered Notes of that series only. Those holders may not, however, waive any default in any payment on any note of that series or compliance with a provision that cannot be modified or amended without the consent of each holder affected.

Satisfaction and Discharge

We will be discharged from all obligations relating to any series of Registered Notes, except for certain surviving obligations to register the transfer or exchange of the Registered Notes and any right by the holders to receive additional amounts under the Indenture if:

To exercise the right of deposit described above, we must pay all other sums payable under the Indenture, and deliver to the trustee an opinion of counsel and an officers’ certificate stating that all conditions precedent to the satisfaction and discharge of the Indenture have been complied with.

Definitions

“Attributable Indebtedness” when used with respect to any sale/leaseback transaction, means, as at the time of determination, the present value, discounted at the rate set forth or implicit in the terms of the lease included in such transaction, of the total obligations of the lessee for rental payments, other than amounts required to be paid on account of property taxes, maintenance, repairs, insurance, assessments, utilities, operating and labor costs and other items that do not constitute payments for property rights during the remaining term of the lease included in such sale/leaseback transaction including any period for which such lease has been extended. In the case of any lease that is terminable by the lessee upon the payment of a penalty or other termination payment, such amount shall be the lesser of the amount determined assuming termination upon the first date such lease may be terminated, in which case the amount shall also include the amount of the penalty or termination payment, but no rent shall be considered as required to be paid under such lease subsequent to the first date upon which it may be so terminated, or the amount determined assuming no such termination.

“Beneficial Owner” has the meaning assigned to such term in Rule 13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the beneficial ownership of any particular “person” (as that term is used in Section 13(d)(3) of the Exchange Act), such “person” will be deemed to have beneficial ownership of all securities that such “person” has the right to acquire by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only after the passage of time. The terms “Beneficially Owns” and

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“Beneficially Owned” have a corresponding meaning. For purposes of this definition, a Person shall not be deemed to Beneficially Own securities that are the subject of a stock purchase agreement, merger agreement or similar agreement until consummation of the transactions or, as applicable, series of related transactions contemplated thereby.

“Capital Stock” of any person means any and all shares, units, interests, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such person, including any preferred stock, but excluding any debt securities convertible into, or exchangeable for, such equity.

“Change of Control” means:

Notwithstanding the preceding, a Change of Control shall not be deemed to occur upon the consummation of any actions undertaken by us solely for the purpose of changing our legal structure. In addition, notwithstanding the foregoing, a transaction will not be deemed to involve a Change of Control under clause 1 above if (i) we become a direct or indirect wholly owned Subsidiary of a holding company and (ii) (A) the direct or indirect holders of the Voting Stock of such holding company immediately following that transaction are substantially the same as the holders of the our Voting Stock immediately prior to that transaction, or (B) (1) immediately following that transaction, the holders of our Voting Stock immediately prior to that transaction are the beneficial owners, directly or indirectly, of more than 50% of the Voting Stock of such holding company and (2) immediately following that transaction, no person becomes the Beneficial Owner of Voting Stock representing 50% or more of the voting power of the total outstanding Voting Stock of such holding company.

“Change of Control Triggering Event” means, with respect to each series of Registered Notes, the occurrence of both a Change of Control and a Rating Decline with respect to such Registered Notes.

“Consolidated Adjusted Net Assets” means the total amount of assets of us and our Subsidiaries, less (i) all current liabilities (excluding the amount of those liabilities that are by their terms extendable or renewable at our option to a date more than 12 months after the date of calculation and excluding current maturities of long-term debt); and (ii) total prepaid expenses and deferred charges, all as set forth, or on a pro forma basis would be set forth, on the consolidated balance sheet of us and our Subsidiaries, for the most recently completed fiscal quarter, prepared in accordance with generally accepted accounting principles.

“Funded Debt” means generally any indebtedness of us or our Subsidiaries which would be classified as long-term debt or finance lease obligations, but in any event including all indebtedness for money borrowed, whether secured or unsecured, maturing more than one year, or extendible at the option of the obligor to a date more than one year, after the date of determination thereof (excluding any amount thereof included in current liabilities).

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“Investment Grade Rating” means a rating of “Baa3” or higher by Moody’s or “BBB-” by S&P, or the equivalent by any successor Rating Agency.

“Moody’s” means Moody’s Investors Service, Inc. or any successor to the rating agency business thereof.

“Principal Domestic Subsidiaries” means any Subsidiary (i) that has substantially all its assets in the United States and (ii) that owns a Principal Property.

“Principal Property” means any of our or our Subsidiaries’ refineries in the United States. This term excludes any refinery that in our opinion is not material to our and our Subsidiaries’ total business conducted as an entirety or any portion of a particular property that is similarly found not to be material to the use or operation of such property. This term also excludes any transportation or marketing facilities or assets.

“Rating Agency” means each of S&P and Moody’s, or if S&P or Moody’s or both shall not make a rating on the notes publicly available, a nationally recognized statistical rating agency or agencies, as the case may be, shall be selected by us and substituted for S&P or Moody’s, or both, as the case may be.

“Rating Decline” shall be deemed to have occurred in relation to a series of Registered Notes if, on any date from the date of the public notice of an arrangement that could result in a Change of Control until the end of the 30-day period following public notice of the occurrence of the Change of Control (which period shall be extended so long as the rating of such Registered Notes is under publicly announced consideration for possible downgrade by either of the Rating Agencies and the other Rating Agency has either downgraded, or publicly announced that it is considering downgrading, such Registered Notes), each of the Rating Agencies decreases its rating of such Registered Notes by one or more gradations (including gradations within categories as well as between rating categories) to a rating that is below its rating of such Registered Notes on the day immediately prior to the earlier of (i) the date of the first public announcement of the possibility of a proposed transaction that would result in a Change of Control or (ii) the date that the possibility of such transaction is disclosed to either of the Rating Agencies. Notwithstanding the foregoing, if such notes have an Investment Grade Rating by each of the Rating Agencies on the day immediately prior to the earlier of (i) the date of the first public announcement of the possibility of a proposed transaction that would result in a Change of Control or (ii) the date that the possibility of such transaction is disclosed to either of the Ratings Agencies, then “Rating Decline” means a decrease in the ratings of such Registered Notes by one or more gradations (including gradations within categories as well as between rating categories) by each of the Rating Agencies such that the rating of such Registered Notes by each of the Rating Agencies falls below an Investment Grade Rating no later than 30 days following public notice of the occurrence of the Change of Control (which 30-day period shall be extended so long as the rating of such notes is under publicly announced consideration for possible downgrade by either of the Rating Agencies and the other Rating Agency has either downgraded, or publicly announced that it is considering downgrading, such Registered Notes).

“S&P” means S&P Global Ratings, or any successor to the rating agency business thereof.

“Sale and Leaseback Transaction” means any arrangement with any person, or to which any such person is a party, providing for the leasing to the company or a Principal Domestic Subsidiary for a period of more than three years of Principal Property which has been or is to be sold or transferred by the company or such Principal Domestic Subsidiary to such person or to any other person, and with respect to which the funds have been or are to be advanced by such person on the security of the leased Principal Property.

“Subsidiary” means (1) any corporation of which at the time of determination we and/or one or more of our Subsidiaries owns or controls directly or indirectly more than 50% of the shares of Voting Stock (2) any general partnership, joint venture or similar entity, of which at the time of determination we and/or one or more Subsidiaries owns or controls directly or indirectly more than 50% or the outstanding partnership or similar interests and (3) any limited partnership (i) of which we or any one of our Subsidiaries is a general partner and

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(ii) which is consolidated with us for financial reporting purposes pursuant to generally accepted accounting principles; provided that Holly Logistic Services, L.L.C. and Holly Energy Partners, L.P. and their respective subsidiaries, for so long as Holly Energy Partners, L.P. is not wholly owned, directly or indirectly, by us, in each case shall be deemed not to be Subsidiaries of us.

“Voting Stock” of an entity means all classes of Capital Stock of such entity then outstanding and normally entitled to vote in the election of members of such entity’s board of directors.

“wholly owned” means, when used with reference to an entity, an entity of which all of the outstanding capital stock (except for qualifying shares) or partnership or similar interests, as applicable, is owned by us or by one or more of our wholly owned Subsidiaries.

Concerning Our Relationship with the Trustee

The trustee under the Indenture is Computershare Trust Company, N.A. We have appointed the trustee as the paying agent and security registrar with respect to each series of the Registered Notes. The Indenture permits the trustee to deal with us and any of our affiliates with the same rights the trustee would have if it were not trustee. However, under the Trust Indenture Act, if the trustee acquires any conflicting interest and there exists a default with respect to the Registered Notes, the trustee must eliminate the conflict or resign. The trustee and its affiliates have in the past provided or may from time to time in the future provide banking and other services to us in the ordinary course of their business.

Governing Law

The Registered Notes and the Indenture will be governed by, and construed in accordance with, the laws of the State of New York.

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BOOK-ENTRY SETTLEMENT AND CLEARANCE

The Global Notes

Like the Restricted Notes, the Registered Notes will be issued in the form of registered notes in global form, without interest coupons (the “global notes”).

Upon issuance, each of the global notes will be deposited with the trustee as custodian for DTC and registered in the name of Cede & Co., as nominee of DTC.

Ownership of beneficial interests in each global note will be limited to persons who have accounts with DTC (“DTC participants”) or persons who hold interests through DTC participants. We expect that under procedures established by DTC:

Beneficial interests in the global notes may not be exchanged for notes in physical, certificated form except in the limited circumstances described below.

Book-Entry Procedures for the Global Notes

All interests in the global notes will be subject to the operations and procedures of DTC, Clearstream and Euroclear as applicable. We have provided the following summaries of those operations and procedures solely for the convenience of investors. The operations and procedures of each settlement system are controlled by that settlement system and may be changed at any time. Neither we nor the exchange agent are responsible for those operations or procedures.

DTC has advised us that it is:

DTC was created to hold securities for its participants and to facilitate the clearance and settlement of securities transactions between its participants through electronic book-entry changes to the accounts of its participants.

DTC’s participants include securities brokers and dealers, including the dealer managers and solicitation agents; banks and trust companies; clearing corporations and other organizations. Indirect access to DTC’s system is also available to others such as banks, brokers, dealers and trust companies; these indirect participants clear through or maintain a custodial relationship with a DTC participant, either directly or indirectly. Investors who are not DTC participants may beneficially own securities held by or on behalf of DTC only through DTC participants or indirect participants in DTC.

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So long as DTC’s nominee is the registered owner of a global note, that nominee will be considered the sole owner or holder of the Registered Notes represented by that global note for all purposes under the Indenture. Except as provided below, owners of beneficial interests in a global note:

As a result, each investor who owns a beneficial interest in a global note must rely on the procedures of DTC to exercise any rights of a holder of the Registered Notes under the Indenture (and, if the investor is not a participant or an indirect participant in DTC, on the procedures of the DTC participant through which the investor owns its interest).

Payments of principal, premium (if any) and interest with respect to the Registered Notes represented by a global note will be made by the trustee to DTC’s nominee as the registered holder of the global note. Neither we nor the trustee will have any responsibility or liability for the payment of amounts to owners of beneficial interests in a global note, for any aspect of the records relating to or payments made on account of those interests by DTC, or for maintaining, supervising or reviewing any records of DTC relating to those interests.

Payments by participants and indirect participants in DTC to the owners of beneficial interests in a global note will be governed by standing instructions and customary industry practice and will be the responsibility of those participants or indirect participants and DTC.

Transfers between participants in DTC will be effected under DTC’s procedures and will be settled in same-day funds. Transfers between participants in Clearstream or Euroclear will be effected in the ordinary way under the rules and operating procedures of those systems.

Cross-market transfers between DTC participants, on the one hand, and Clearstream or Euroclear participants, on the other hand, will be effected within DTC through the DTC participants that are acting as depositaries for Clearstream and Euroclear. To deliver or receive an interest in a global note held in a Clearstream or Euroclear account, an investor must send transfer instructions to Clearstream or Euroclear, as the case may be, under the rules and procedures of that system and within the established deadlines of that system. If the transaction meets its settlement requirements, Clearstream or Euroclear, as the case may be, will send instructions to its DTC depository to take action to effect final settlement by delivering or receiving interests in the relevant global notes in DTC, and making or receiving payment under normal procedures for same-day funds settlement applicable to DTC. Clearstream and Euroclear participants may not deliver instructions directly to the DTC depositaries that are acting for Clearstream or Euroclear.

Because of time zone differences, the securities account of a Clearstream or Euroclear participant that purchases an interest in a global note from a DTC participant will be credited on the business day for Clearstream or Euroclear immediately following the DTC settlement date. Cash received in Clearstream or Euroclear from the sale of an interest in a global note to a DTC participant will be received with value on the DTC settlement date but will be available in the relevant Clearstream or Euroclear cash account as of the business day for Clearstream or Euroclear following the DTC settlement date.

DTC, Clearstream and Euroclear have agreed to the above procedures to facilitate transfers of interests in the global notes among participants in those settlement systems. However, the settlement systems are not obligated to perform these procedures and may discontinue or change these procedures at any time. Neither we nor the trustee will have any responsibility for the performance by DTC, Clearstream or Euroclear or their participants or indirect participants of their obligations under the rules and procedures governing their operations.

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Certificated Notes

In a few special situations described below, the book-entry system for the notes will terminate and interests in the global notes will be exchanged for definitive notes in registered form. You must consult your bank, broker or other financial institution to find out how to have your interests in the notes transferred to your name, so that you will be a direct holder.

The special situations for termination of the book-entry system for the notes are:

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EXCHANGE OFFERS; REGISTRATION RIGHTS

On December 4, 2023, the Company and BofA Securities, Inc., Wells Fargo Securities, LLC, Barclays Capital Inc., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC, MUFG Securities Americas Inc., Scotia Capital (USA) Inc., SMBC Nikko Securities America, Inc., TD Securities (USA) LLC and Truist Securities, Inc. entered into the Registration Rights Agreement with respect to the Restricted Notes. In the Registration Rights Agreement, the Company agreed, among other things, for the benefit of the holders of the Restricted Notes to use commercially reasonable efforts to (1) file a registration statement on an appropriate registration form with respect to a registered offer to exchange each series of Restricted Notes for Registered Notes, with terms substantially identical in all material respects to such series of Restricted Notes (except that the Registered Notes will not contain terms with respect to transfer restrictions or any increase in annual interest rate for failure to comply with the Registration Rights Agreement and will not have the registration rights applicable to the Restricted Notes), and (2) cause the registration statement to be declared effective under the Securities Act by December 4, 2024.

If the SEC declares the registration statement of which this prospectus forms a part effective, the Company will offer the Registered Notes in exchange for the Restricted Notes. Each of the exchange offers will remain open for at least 20 business days (or longer if required by applicable law) after the date we electronically deliver notice of such exchange offer to the holders of the applicable Restricted Notes. For each Restricted Note surrendered to the Company under the exchange offers, the holders of such Restricted Note will receive a Registered Note of such series of equal principal amount. Interest on each Registered Note will accrue from the last interest payment date on which interest was paid on the Restricted Note surrendered in exchange therefor. A holder of registrable securities that participates in the exchange offers will be required to make certain representations to HF Sinclair. HF Sinclair will use commercially reasonable efforts to complete the exchange offers not later than 60 days after the registration statement becomes effective.

Under existing interpretations of the SEC contained in several no-action letters to third parties, the Registered Notes will be freely transferable after the exchange offers without further registration under the Securities Act, except that any broker-dealer that participates in the exchange offers must deliver a prospectus meeting the requirements of the Securities Act when it resells the Registered Notes. In addition, under applicable interpretations of the staff of the SEC, HF Sinclair’s affiliates will not be permitted to exchange their Restricted Notes for Registered Notes in the exchange offers.

HF Sinclair will agree to make available, during the period required by the Securities Act, a prospectus meeting the requirements of the Securities Act for use by participating broker-dealers and other persons, if any, with similar prospectus delivery requirements for use in connection with any resale of the Registered Notes. Restricted Notes of any series not tendered in the exchange offers will bear interest at the rate set forth in “Description of the Notes” with respect to such series of Restricted Notes and be subject to all the terms and conditions specified in the Indenture, including transfer restrictions, but will not retain any rights under the Registration Rights Agreement (including with respect to increases in annual interest rate described below) after the consummation of the exchange offers.

In the event that HF Sinclair determines that the exchange offers may not be completed because they would violate any applicable law, rule, regulation or applicable interpretations of the staff of the SEC or, if the exchange offers are not for any other reason completed prior to the later of December 4, 2024 and the date on which, under certain circumstances, any dealer manager or holder so requests, HF Sinclair will use commercially reasonable efforts to file and to have become effective a shelf registration statement relating to resales of the Restricted Notes and to keep that shelf registration statement effective until the date that the Restricted Notes cease to be “registrable securities” (as defined below). HF Sinclair will, in the event of such a shelf registration, provide to each participating holder of Restricted Notes copies of a prospectus, notify each participating holder of Restricted Notes when the shelf registration statement has become effective and take certain other actions to permit resales of the Restricted Notes. A holder of registrable securities that sells Restricted Notes under the shelf registration

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statement generally will be required to make certain representations to HF Sinclair, to be named as a selling security holder in the related prospectus and to deliver a prospectus to purchasers, will be subject to certain of the civil liability provisions under the Securities Act in connection with those sales and will be bound by the provisions of the Registration Rights Agreement that are applicable to such a holder of registrable securities (including certain indemnification obligations). Holders of registrable securities will also be required to suspend their use of the prospectus included in the shelf registration statement under specified circumstances upon receipt of notice from HF Sinclair.

If a “Registration Default” (as defined below) occurs with respect to a series of registrable securities, then additional interest shall accrue on the principal amount of the Restricted Notes of a particular series that are registrable securities at a rate of 0.25% per annum (which rate will be increased by an additional 0.25% per annum for each subsequent 90-day period that such additional interest continues to accrue until such Registration Default ends; however, the rate at which such additional interest accrues may in no event exceed 0.50% per annum). A “Registration Default” occurs upon the occurrence of any of the following: (1) the exchange offer of the Registered Notes for all Restricted Notes validly tendered in accordance with the terms of the exchange offer is not completed on or prior to December 4, 2024, or if a shelf registration statement is required, such shelf registration statement is not declared effective on or prior to the 60th day after the later of (a) December 4, 2024 and (b) the date on which HF Sinclair receives a duly executed Shelf Request (as defined in the Registration Rights Agreement), or (2) if applicable, a shelf registration statement covering resales of the Restricted Notes has been declared effective and such shelf registration statement ceases to be effective or the prospectus contained therein ceases to be usable for resales of registrable securities at any time during the “Shelf Effectiveness Period” (defined below) (a) on more than two occasions of at least 30 consecutive days during the Shelf Effectiveness Period, or (b) at any time in any 12-month period during the Shelf Effectiveness Period and such failure to remain effective or be so usable exists for more than 90 days (whether or not consecutive) in any 12-month period. A Registration Default ends with respect to a series of Restricted Notes when such Restricted Notes cease to be registrable securities or, if earlier, (A) in the case of a Registration Default under clause (1) of the definition thereof, when the exchange offer for such series is completed or when the shelf registration statement covering such registrable securities becomes effective or (B) in the case of a Registration Default under clause (2) of the definition thereof, when the shelf registration statement again becomes effective or the prospectus again becomes usable or the Shelf Effectiveness Period expires. If at any time more than one Registration Default has occurred and is continuing, then, until the next date that there is no Registration Default, the increase in interest rate provided for by this paragraph shall apply as if there occurred a single registration default that begins on the date that the earliest such Registration Default occurred and ends on the next date that there is no Registration Default. The above additional interest will be the sole monetary remedy for the Company’s failure to comply with the registration provisions of the Registration Rights Agreement.

The Registration Rights Agreement defines “registrable securities” initially to mean the Restricted Notes and provides that the Restricted Notes will cease to be registrable securities upon the earliest to occur of the following: (1) when a registration statement with respect to such Restricted Notes has become effective under the Securities Act or the Shelf Effectiveness Period has passed, (2) when such Restricted Notes cease to be outstanding, (3) when such Restricted Notes have been resold pursuant to Rule 144 under the Securities Act (but not Rule 144A) without regard to volume restrictions, provided that the Company shall have removed or caused to be removed any restrictive legend on the Restricted Notes, and (4) with respect to Restricted Notes held by any holder who was, at the time an exchange offer was pending and consummated, eligible to exchange, and did not validly tender, or withdrew, its Restricted Notes for Registered Notes in such exchange offer, immediately following the consummation of such exchange offer.

The Registration Rights Agreement defines “Shelf Effectiveness Period” as the earlier of (1) one year from the effectiveness date of the shelf registration statement and (2) the date on which the Restricted Notes covered thereby cease to be registrable securities, during which time the Company agrees to use its commercially reasonable efforts to keep the Shelf Registration Statement continuously effective.

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Any amounts of additional interest due will be payable in cash on the same original interest payment dates as interest on the Restricted Notes is payable.

This summary of the provisions of the Registration Rights Agreement does not purport to be complete and is subject to, and is qualified in its entirety by reference to, all the provisions of the Registration Rights Agreement.

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MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

The following discussion is a summary of the material U.S. federal income tax considerations generally applicable to the exchange of Restricted Notes for Registered Notes pursuant to the exchange offers, as of the date hereof. This discussion does not address specific tax considerations that may be relevant to particular persons in light of their individual circumstances (including, for example, entities treated as partnerships for U.S. federal income tax purposes or partners or members therein, banks or other financial institutions, broker-dealers, insurance companies, regulated investment companies, tax-exempt entities, common trust funds, controlled foreign corporations, dealers in securities or currencies, and persons in special situations, such as those who hold notes as part of a straddle, synthetic security, conversion transaction, or other integrated investment comprising notes and one or more other investments). In addition, this discussion does not describe any tax considerations arising under U.S. federal gift, estate or other tax laws, or under the tax laws of any state, local or foreign jurisdiction. This discussion is based upon the Internal Revenue Code of 1986, as amended, the Treasury Department regulations promulgated thereunder, and administrative and judicial interpretations thereof, all as of the date hereof and all of which are subject to change, possibly with retroactive effect. Each holder is urged to consult its tax advisor regarding the U.S. federal, state, local and non-U.S. income and other tax considerations relating to the exchange of Restricted Notes for Registered Notes and relating to the acquisition, ownership and disposition of the Registered Notes.

The exchange of a Restricted Note for a Registered Note pursuant to the exchange offers will not constitute a “significant modification” of the Restricted Note for U.S. federal income tax purposes and, accordingly, will not be treated as an exchange or otherwise a taxable event to a holder of a Restricted Note. As a result, a holder of a Restricted Note will not recognize gain or loss upon receipt of a Registered Note in exchange for such Restricted Note and a holder’s basis and holding period in such Registered Note will be the same as its basis and holding period in the corresponding Restricted Note immediately before the exchange.

We recommend that each holder of a Restricted Note consult his or her own tax advisor as to the particular tax consequences of exchanging such holder’s Restricted Note for a Registered Note pursuant to the exchange offers, including the applicability and effect of any state, local, foreign or other tax laws or gift or estate tax considerations.

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PLAN OF DISTRIBUTION

Each broker-dealer that receives Registered Notes for its own account pursuant to the exchange offers must acknowledge that it will deliver a prospectus in connection with any resale of such Registered Notes. This prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Registered Notes received in exchange for Restricted Notes that were acquired by such broker-dealer as a result of market-making or other trading activities. The Company has agreed that, for a period of up to 180 days after the expiration date of the exchange offers, if requested by one or more such broker-dealers, the Company will amend or supplement this prospectus in order to expedite or facilitate the disposition of any Registered Notes by any such broker-dealers.

The Company will not receive any proceeds from any sale of Registered Notes by broker-dealers. Registered Notes received by broker-dealers for their own account pursuant to the exchange offers may be sold from time to time in one or more transactions in the over-the-counter market, in negotiated transactions, through the writing of options on the Registered Notes or a combination of such methods of resale, at market prices prevailing at the time of resale, at prices related to such prevailing market prices or at negotiated prices. Any such resale may be made directly to purchasers or to or through brokers or dealers who may receive compensation in the form of commissions or concessions from any such broker-dealer or the purchasers of any such Registered Notes. Any broker-dealer that resells Registered Notes that were received by it for its own account pursuant to the exchange offers, and any broker or dealer that participates in a distribution of such Registered Notes may be deemed to be an “underwriter” within the meaning of the Securities Act, and any profit on any such resale of Registered Notes and any commissions or concessions received by any such persons may be deemed to be underwriting compensation under the Securities Act. The letter of transmittal states that, by acknowledging that it will deliver and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act.

For a period of 180 days after the expiration time of the exchange offers, the Company will promptly send additional copies of this prospectus and any amendment or supplement to this prospectus to any broker-dealer that requests such documents in the letter of transmittal. The Company has agreed to pay certain expenses incident to the exchange offers (including, in certain circumstances, the expenses of one counsel for the holders of the Registered Notes) other than commissions or concessions of any brokers or dealers and will indemnify the holders of the Registered Notes (including any broker-dealers) against certain liabilities pursuant to the Registration Rights Agreement, including liabilities under the Securities Act.

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LEGAL MATTERS

Vinson & Elkins L.L.P. will pass on certain aspects of the validity of the Registered Notes offered in the exchange offers.

EXPERTS

The consolidated financial statements of HF Sinclair Corporation for the year ended December 31, 2023, appearing in Exhibit 99.1 to HF Sinclair Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, and the effectiveness of HF Sinclair Corporation’s internal control over financial reporting as of December 31, 2023, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon, included therein, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such reports given on the authority of such firm as experts in accounting and auditing.

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HF SINCLAIR CORPORATION

Offers to Exchange the Notes Set Forth Below

Registered Under the Securities Act of 1933, as amended, for

Any and All Outstanding Restricted Notes

Set Forth Opposite the Corresponding Registered Notes

PROSPECTUS

     , 2024

HF SINCLAIR CORPORATION

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

HF Sinclair is incorporated under the laws of the State of Delaware.

Section 145(a) of the General Corporation Law of the State of Delaware (the “DGCL”) authorizes a corporation to indemnify any person who was or is a party, or is threatened to be made a party, to a threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding, if the person acted in good faith and in a manner the person reasonably believed to be in, or not opposed to, the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe the person’s conduct was unlawful.

Section 145(b) of the DGCL provides in relevant part that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such other court shall deem proper.

The DGCL also provides that, unless ordered by a court, indemnification under Sections 145(a) and (b) can only be made upon a determination that indemnification of the present or former director, officer or employee or agent is proper in the circumstances because such person has met the applicable standard of conduct set forth in Sections 145(a) and (b). Such determination shall be made, with respect to a person who is a director or officer at the time of such determination, (1) by a majority vote of directors who are not a party to the action at issue (even though less than a quorum), or (2) by a majority vote of a designated committee of these directors (even though less than a quorum), or (3) if there are no such directors, or these directors authorize, by the written opinion of independent legal counsel, or (4) by the stockholders.

Section 145(c) of the DGCL provides that to the extent a present or former director or officer (as defined in Section 145(c) of the DGCL) of a corporation has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to in Sections 145(a) or (b), or in defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorney’s fees) actually and reasonably incurred by such person in connection therewith.

Section 145(e) of the DGCL provides that expenses (including attorneys’ fees) incurred by an officer or director of the corporation in defending any civil, criminal, administrative or investigative action, suit or proceeding may be paid by the corporation in advance of the final disposition of such action, suit or proceeding

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upon receipt of an undertaking by or on behalf of such director or officer to repay such amount if it shall ultimately be determined that such person is not entitled to be indemnified by the corporation as authorized in Section 145 of the DGCL. Such expenses (including attorneys’ fees) incurred by former directors and officers or other employees and agents of the corporation or by persons serving at the request of the corporation as directors, officers, employees or agents of another corporation, partnership, joint venture, trust or other enterprise may be so paid upon such terms and conditions, if any, as the corporation deems appropriate.

Section 145(g) of the DGCL also empowers a corporation to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against such person and incurred by such person in any such capacity, or arising out of such person’s status as such, whether or not the corporation would have the power to indemnify such person against such liability under Section 145 of the DGCL.

HF Sinclair’s amended and restated certificate of incorporation and amended and restated by-laws provide that HF Sinclair must indemnify each director and officer who was or is a party, or is threatened to be made a party, to any threatened, pending or completed action, suit or proceeding by reason of the fact that he or she is or was one of HF Sinclair’s directors or officers to the fullest extent permitted by the DGCL.

Section 102(b)(7) (“Section 102(b)”) of the DGCL permits a corporation, among other things, to provide for eliminating or limiting the personal liability of one of its directors for any monetary damages related to a breach of fiduciary duty as a director, as long as the corporation does not eliminate or limit the liability of a director for (a) a breach of the director’s duty of loyalty to the corporation or its stockholders, (b) acts or omissions not in good faith or involving intentional misconduct or a knowing violation of law, (c) a violation of Section 174 of the DGCL (unlawful dividends or stock repurchases or redemptions) or (d) any transaction from which the director derived an improper personal benefit.

HF Sinclair’s amended and restated certificate of incorporation limits the liability of its directors to it or its stockholders to the fullest extent permitted by Section 102(b). Specifically, HF Sinclair’s directors will not be personally liable for monetary damages for breach of a director’s fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to HF Sinclair or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) for unlawful payments of dividends or unlawful stock repurchases or redemptions as provided in Section 174 of the DGCL, or (iv) for any transaction from which the director derived an improper personal benefit. In the view of the SEC, the limitation of monetary liability pursuant to state law does not apply to liabilities under the federal securities laws.

HF Sinclair has entered into indemnification agreements with each of its current directors and executive officers to provide these directors and executive officers additional contractual assurances regarding the scope of the indemnification set forth in our amended and restated by-laws and to provide additional procedural protections.

HF Sinclair has an insurance policy in place that covers our officers and directors with respect to certain liabilities, including liabilities arising under the Securities Act, or otherwise.

HF Sinclair may enter into one or more underwriting agreements which provide that the underwriters will be obligated, under some circumstances, to indemnify its directors, officers and controlling persons against specified liabilities, including liabilities under the Securities Act.

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The undersigned Registrant hereby undertakes:

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Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Dallas, State of Texas, on May 10, 2024.

POWER OF ATTORNEY

Each person whose signature appears below hereby constitutes and appoints Timothy Go and Atanas H. Atanasov, jointly and severally, his or her true and lawful attorneys-in-fact and agents, each with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement and any registration statement (including any amendment thereto) for any offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933 and to file the same, with all exhibits thereto, and all other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or would do in person, hereby ratifying and confirming all that said attorneys-in fact and agents or any of them or their or his or her substitute and substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933 this registration statement has been signed by the following persons in the capacities and on May 10, 2024.

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Exhibit 5.1

May 10, 2024

HF Sinclair Corporation

2828 N. Harwood

Suite 1300

Dallas, Texas 75201

Ladies and Gentlemen:

We have acted as counsel for HF Sinclair Corporation, a Delaware corporation (the “Company”), with respect to the preparation of the Registration Statement on Form S-4 (the “Registration Statement”) filed on the date hereof with the Securities and Exchange Commission, pursuant to the Securities Act of 1933 (the “Securities Act”), in connection with the offer to exchange (the “Exchange Offer”) by the Company of up to (i) $399,875,000 aggregate principal amount of the Company’s outstanding 6.375% Senior Notes due 2027 (the “2027 Restricted Notes”) for a like principal amount of the Company’s 6.375% Senior Notes due 2027 (the “2027 Registered Notes”) and (ii) $498,879,000 aggregate principal amount of the Company’s outstanding 5.000% Senior Notes due 2028 (the “2028 Restricted Notes” and together with the 2027 Restricted Notes, the “Restricted Notes”) for a like principal amount of the Company’s 5.000% Senior Notes due 2028 (the “2028 Registered Notes” and together with the 2027 Registered Notes, the “Registered Notes”), in each case as contemplated by the Registration Rights Agreement, dated as of December 4, 2023 (the “Registration Rights Agreement”), among the Company, BofA Securities, Inc., Wells Fargo Securities, LLC, Barclays Capital Inc., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC, MUFG Securities Americas Inc., Scotia Capital (USA) Inc., SMBC Nikko Securities America, Inc., TD Securities (USA) LLC and Truist Securities, Inc. The Registered Notes will be issued pursuant to the Indenture, dated as of April 27, 2022 (the “Base Indenture”), between the Company, as issuer, and Computershare Trust Company, N.A., as trustee (the “Trustee”), as supplemented by that certain Second Supplemental Indenture, dated as of December 4, 2023 (the “Second Supplemental Indenture” and together with the Base Indenture, as amended and supplemented from time to time, the “Indenture”), between the Company and Trustee.

In rendering the opinion set forth below, we have reviewed and relied upon (i) the Registration Statement; (ii) the Indenture; (iii) the Registration Rights Agreement; (iv) the form of the Registered Notes; (v) the Amended and Restated Certificate of Incorporation of the Company; (vi) the Amended and Restated By-Laws of the Company; (vii) certain resolutions adopted by the Board of Directors of the Company (or to the extent permitted by Section 141 of the General Corporation Law of the State of Delaware, a duly constituted and acting committee thereof) relating to the Registration Statement; and (viii) such other certificates, statutes, documents and records as we have deemed necessary and relevant for the purpose of rendering the opinion set forth below. In connection with this opinion, we have assumed

		HF Sinclair Corporation May 10, 2024 Page 2

(a) that all information contained in all documents reviewed by us is true and correct; (b) that all signatures on all documents examined by us are genuine; (c) each person signing the documents that we examined has the legal capacity and authority to do so; (d) the due authorization, execution and delivery of all documents by all parties and the validity, binding effect and enforceability thereof (other than the authorization, execution and delivery of documents by the Company and the validity, binding effect and enforceability thereof upon the Company); (e) that each document submitted to us for review is accurate and complete, each such document that is an original is authentic, and each such document that is a copy conforms to an authentic original; (f) that the Registration Statement, and any amendments thereto (including post-effective amendments), will have become effective; and (g) that the Registered Notes will be issued and sold in compliance with applicable federal and state securities laws and in the manner described in the Registration Statement. As to the matters of fact relevant to the opinion expressed below, and as to factual matters arising in connection with our examination of corporate documents, records and other documents and writings, we have relied upon certificates and other communications from officers and employees of the Company, without further investigation as to the facts set forth therein.

Based upon and subject to the foregoing, we are of the opinion that when the Registered Notes have been duly executed by the Company and authenticated by the Trustee in accordance with the provisions of the Indenture, and duly issued and delivered by the Company upon consummation of the Exchange Offer against receipt of the Restricted Notes to be surrendered in exchange therefor in accordance with the terms of the Indenture, the Registration Rights Agreement and the Exchange Offer, such Registered Notes will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, except as such enforcement is subject to any applicable bankruptcy, insolvency, reorganization or other law relating to or affecting creditors’ rights generally and general principles of equity (whether considered in a proceeding in equity or at law).

In rendering the foregoing opinion, we have further assumed that the Registered Notes will be offered, issued and delivered in accordance with applicable law and any requirements therefor set forth in any corporate action authorizing the Registered Notes and the Indenture and in the manner contemplated by the Registration Statement.

Our opinion is qualified in the following respects:

		HF Sinclair Corporation May 10, 2024 Page 3

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the use of our firm name in the prospectus forming a part of the Registration Statement under the caption “Legal Matters.” In giving this consent, we do not admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act.

Exhibit 21.1

HF SINCLAIR CORPORATION

SUBSIDIARIES OF REGISTRANT

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the reference to our firm under the caption “Experts” in the Registration Statement (Form S-4) and related Prospectus of HF Sinclair Corporation for the offer to exchange up to $399,875,000 of 6.375% Senior Notes due 2027 and $498,879,000 of 5.000% Senior Notes due 2028, and to the incorporation by reference therein of our report dated February 21, 2024, except for Note 20, as to which the date is May 8, 2024, with respect to the consolidated financial statements of HF Sinclair Corporation, and our report dated February 21, 2024, with respect to the effectiveness of internal control over financial reporting of HF Sinclair Corporation, both included in Exhibit 99.1 to HF Sinclair Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 filed on May 8, 2024, with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Dallas, Texas

May 10, 2024

Exhibit 25.1

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM T-1

STATEMENT OF ELIGIBILITY

UNDER THE TRUST INDENTURE ACT OF 1939 OF A

CORPORATION DESIGNATED TO ACT AS TRUSTEE

COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION

(Exact name of trustee as specified in its charter)

Computershare Trust Company, National Association

Attn: Legal Department

150 Royall Street

Canton, MA 02021

(781) 575-2000

(Name, address and telephone number of agent for service)

HF Sinclair Corporation

(Exact name of obligor as specified in its charter)

6.375% Senior Notes due 2027 and 5.000% Senior Notes due 2028

(Title of the indenture securities)

Comptroller of the Currency

340 Madison Avenue, 4^th Floor

New York, NY 10017-2613

The trustee is authorized to exercise corporate trust powers.

None.

1. A copy of the articles of association of the trustee. (See Exhibit 1 to Form T-1 filed with Registration Statement No. 333-200089).

2. A copy of the certificate of authority of the trustee to commence business.

3. A copy of the Comptroller of the Currency Certification of Fiduciary Powers for Computershare Trust Company, National Association.

4. A copy of the existing bylaws of the trustee, as now in effect. (See Exhibit 4 to Form T-1 filed with Registration Statement No. 333-200089).

6. The consent of the Trustee required by Section 321(b) of the Act.

7. A copy of the latest report of condition of the trustee published pursuant to law or the requirements of its supervising or examining authority.

SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, the trustee, Computershare Trust Company, National Association, a national banking association, organized and existing under the laws of the United States, has duly caused this statement of eligibility to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of St. Paul, and State of Minnesota, on the 10th day of May, 2024.

EXHIBIT 2

A copy of the Comptroller of the Currency Certificate of Corporate Existence for Computershare Trust Company, National Association, dated April 8, 2024.

EXHIBIT 3

A copy of the Comptroller of the Currency Certificate of Corporate Existence for Computershare Trust Company, National Association, dated April 8, 2024.

EXHIBIT 6

CONSENT OF THE TRUSTEE

Pursuant to the requirements of Section 321(b) of the Trust Indenture Act of 1939, and in connection with the proposed issue of debt securities, Computershare Trust Company, National Association hereby consents that reports of examinations by Federal, State, Territorial or District authorities may be furnished by such authorities to the Securities and Exchange Commission upon request therefore.

May 10, 2024

EXHIBIT 7

Consolidated Report of Condition of

COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION

150 Royall Street, Canton, MA 02021

at the close of business December 31, 2023.

I, Robert G. Marshall, Assistant Controller of the above named bank do hereby declare that this Report of Condition is true and correct to the best of my knowledge and belief.

Exhibit 99.1

HF SINCLAIR CORPORATION

LETTER OF TRANSMITTAL

OFFER TO EXCHANGE

$399,875,000 PRINCIPAL AMOUNT OF ITS 6.375% SENIOR NOTES DUE 2027, THE ISSUANCE OF WHICH HAS BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,

FOR

AN EQUAL PRINCIPAL AMOUNT OF 6.375% SENIOR NOTES DUE 2027

$498,879,000 PRINCIPAL AMOUNT OF ITS 5.000% SENIOR NOTES DUE 2028, THE ISSUANCE OF WHICH HAS BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,

FOR

AN EQUAL PRINCIPAL AMOUNT OF 5.000% SENIOR NOTES DUE 2028

The Exchange Agent is:

Computershare Trust Company, N.A.

to confirm by telephone or for information at (800) 344-5128

Delivery of this Letter of Transmittal (the “Letter of Transmittal”) to an address other than as set forth above will not constitute a valid delivery. Only hard copies of this Letter of Transmittal or presentations via The Depository Trust Company’s (“DTC”) Automated Tender Offer Program (“ATOP”) will be accepted.

Questions and requests for assistance or for additional copies of the Prospectus (as defined below) or of the Letter of Transmittal and/or related materials must be directed to the Exchange Agent by calling (800) 344-5128.

The undersigned acknowledges receipt of the Prospectus, dated     , 2024 (the “Prospectus”), of HF Sinclair Corporation (the “Issuer”) and this Letter of Transmittal, which together describe the Issuer’s offer (the “Exchange Offers”) to exchange all of the Issuer’s outstanding unregistered 6.375% Senior Notes due 2027 (CUSIP No. 403949 AK6 AND U4322C AD5) and 5.000% Senior Notes due 2028 (CUSIP No. 403949 AM2 AND U4322C AE3) (together, the “Restricted Notes”) that are validly tendered and not validly withdrawn for an equal principal amount of the respective series of the Issuer’s 6.375% Senior Notes due 2027 and 5.000% Senior Notes due 2028 (together, the “Registered Notes”) the offers of which have been registered under the Securities Act of 1933, as amended (the “Securities Act”). The Issuer is registering the Exchange Offers in reliance on the position of the staff of the U.S. Securities and Exchange Commission (the “SEC”) enunciated in Exxon Capital Holdings Corporation (April 13, 1989), Morgan Stanley & Co. Incorporated (June 5, 1991) and Shearman & Sterling (July 2, 1993).

The terms of the Registered Notes to be issued in the Exchange Offers are substantially identical in all material respects to the Restricted Notes, except that the Registered Notes will not be subject to restrictions on transfer or to any increase in annual interest rate for failure to comply with the Registration Rights Agreement dated as of December 4, 2023 (the “Registration Rights Agreement”), between the Issuer and BofA Securities, Inc., Wells Fargo Securities, LLC, Barclays Capital Inc., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC, MUFG Securities Americas Inc., Scotia Capital (USA) Inc., SMBC Nikko Securities America, Inc., TD Securities (USA) LLC and Truist Securities, Inc. The Registered Notes will not have the registration rights applicable to the Restricted Notes. The Issuer is not making the Exchange Offers to holders of the Restricted Notes in any jurisdiction in which the Exchange Offers or the acceptance of the Exchange Offers would not be in compliance with the securities or Blue Sky laws of such jurisdiction. Nor will the Issuer also accept surrenders for exchange from holders of the Restricted Notes in any jurisdiction in which the Exchange Offers or the acceptance of the Exchange Offers would not be in compliance with the securities or Blue Sky laws of such jurisdiction.

Capitalized terms used but not defined herein shall have the same meaning given them in the Prospectus.

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YOUR BANK OR BROKER CAN ASSIST YOU IN COMPLETING THIS FORM. THE INSTRUCTIONS INCLUDED WITH THIS LETTER OF TRANSMITTAL MUST BE FOLLOWED. QUESTIONS RELATING TO THE PROCEDURE FOR TENDERING AND REQUESTS FOR ASSISTANCE OR FOR ADDITIONAL COPIES OF THE PROSPECTUS AND THIS LETTER OF TRANSMITTAL MAY BE DIRECTED TO THE EXCHANGE AGENT.

The undersigned has checked the appropriate boxes below and signed this Letter of Transmittal to indicate the action the undersigned desires to take with respect to the Exchange Offers.

PLEASE READ THE ENTIRE

LETTER OF TRANSMITTAL AND THE PROSPECTUS

CAREFULLY BEFORE CHECKING ANY BOX BELOW.

List below the Restricted Notes to which this Letter of Transmittal relates. If the space provided below is inadequate, the certificate numbers and aggregate principal amounts should be listed on a separate signed schedule affixed hereto.

DESCRIPTION OF RESTRICTED NOTES TENDERED HEREWITH

Unless the context otherwise requires, the term “holder” for purposes of this Letter of Transmittal means any person in whose name Restricted Notes are registered or any other person who has obtained a properly completed bond power from the registered holder or any person whose Restricted Notes are held of record by DTC.

Name:

Address:

Name:

Address:

Name:

Address:

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If the undersigned is not a broker-dealer, the undersigned represents that it is not engaged in, and does not intend to engage in, a distribution of Registered Notes. If the undersigned is a broker-dealer that will receive Registered Notes for its own account in exchange for Restricted Notes that were acquired as a result of market-making activities or other trading activities, it acknowledges that it will deliver a prospectus in connection with any resale of such Registered Notes; however, by so acknowledging and by delivering a prospectus, the undersigned will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act. A broker-dealer may not participate in the Exchange Offers with respect to Restricted Notes acquired other than as a result of market-making activities or other trading activities. Any holder who is an “affiliate” of the Issuer or who has an arrangement or understanding with respect to the distribution of the Registered Notes to be acquired pursuant to the Exchange Offers, or any broker-dealer that purchased Restricted Notes from the Issuer to resell pursuant to Rule 144A under the Securities Act or any other available exemption under the Securities Act must comply with the registration and prospectus delivery requirements under the Securities Act.

PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY

Ladies and Gentlemen:

Upon the terms and subject to the conditions of the Exchange Offers, the undersigned hereby tenders to the Issuer the principal amount of the Restricted Notes indicated above. Unless otherwise indicated above, the undersigned will be deemed to have tendered the full aggregate principal amount represented by the Restricted Notes. Subject to, and effective upon, the acceptance for exchange of any portion of the Restricted Notes tendered herewith in accordance with the terms and conditions of the Exchange Offers (including, if the Exchange Offers are extended or amended, the terms and conditions of any such extension or amendment), the undersigned hereby exchanges, assigns and transfers to, or upon the order of, the Issuer all right, title and interest in and to such Restricted Notes as are being tendered herewith. The undersigned hereby irrevocably constitutes and appoints the Exchange Agent as the true and lawful agent and attorney-in-fact of the undersigned (with full knowledge that the Exchange Agent also acts as the agent of the Issuer, in connection with the Exchange Offers) to cause the Restricted Notes to be assigned, transferred and exchanged.

The undersigned represents and warrants that it has full power and authority to tender, exchange, assign and transfer the Restricted Notes and to acquire Registered Notes issuable upon the exchange of such tendered Restricted Notes, and that, when the same are accepted for exchange, the Issuer will acquire good and unencumbered title to the tendered Restricted Notes, free and clear of all liens, restrictions, charges and encumbrances and not subject to any adverse claim. The undersigned also warrants that it will, upon request, execute and deliver any additional documents deemed by the Exchange Agent or the Issuer to be necessary or desirable to complete the exchange, assignment and transfer of the tendered Restricted Notes or transfer ownership of such Restricted Notes on the account books maintained by the book-entry transfer facility. The undersigned further agrees that acceptance of any and all validly tendered Restricted Notes by the Issuer and the issuance of Registered Notes in exchange therefor shall constitute performance in full by the Issuer of its obligations under the Registration Rights Agreement, and that the Issuer shall have no further obligations or liabilities thereunder. The undersigned will comply with its obligations under the Registration Rights Agreement.

The undersigned understands that tenders of Restricted Notes pursuant to any one of the procedures described in the Prospectus and in the instructions attached hereto will, upon the Issuer’s acceptance for exchange of such tendered Restricted Notes, constitute a binding agreement between the undersigned and the Issuer upon the terms and subject to the conditions of the Exchange Offers. The undersigned recognizes that, under circumstances set forth in the Prospectus, the Issuer may not be required to accept for exchange any of the Restricted Notes.

By tendering Restricted Notes and executing this Letter of Transmittal, the undersigned represents that (i) the holder is not an “affiliate” of the Issuer within the meaning of Rule 405 under the Securities Act or, if such an affiliate, will comply with the registration and prospectus delivery requirements of the Securities Act to the extent applicable in connection with the resale of the Registered Notes; (ii) the holder is not participating and does not intend to participate in, and has no arrangement or understanding with any person to participate in, the

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distribution (within the meaning of the Securities Act) of the Registered Notes; (iii) the holder is acquiring the Registered Notes in its ordinary course of business; and (iv) if the holder is a broker-dealer that will receive the Registered Notes for its own account in exchange for the Restricted Notes that were acquired as a result of market-making activities or other trading activities, such holder will deliver a prospectus (or, to the extent permitted by law, make available a prospectus) meeting the requirements of the Securities Act in connection with any resales of the Registered Notes. If the undersigned or the person receiving such Registered Notes, whether or not such person is the undersigned, is a broker-dealer that will receive Registered Notes for its own account in exchange for Restricted Notes that were acquired as a result of market-making activities or other trading activities, it acknowledges that it will deliver a prospectus in connection with any resale of such Registered Notes; however, by so acknowledging and by delivering a prospectus, the undersigned will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act.

The undersigned understands that all resales of the Registered Notes must be made in compliance with applicable state securities or Blue Sky laws. If a resale does not qualify for an exemption from these laws, the undersigned acknowledges that it may be necessary to register or qualify the Registered Notes in a particular state or to make the resale through a licensed broker-dealer in order to comply with these laws. The undersigned further understands that the Issuer assumes no responsibility regarding compliance with state securities or Blue Sky laws in connection with resales.

Any holder of Restricted Notes using the Exchange Offers to participate in a distribution of the Registered Notes (i) cannot rely on the position of the staff of the SEC enunciated in its interpretive letter with respect to Exxon Capital Holdings Corporation (April 13, 1989) or similar interpretive letters and (ii) must comply with the registration and prospectus requirements of the Securities Act in connection with a secondary resale transaction.

All authority herein conferred or agreed to be conferred shall survive the death or incapacity of the undersigned and every obligation of the undersigned hereunder shall be binding upon the heirs, personal representatives, successors and assigns of the undersigned. Except as stated in the Prospectus, this tender is irrevocable but tendered Restricted Notes may be withdrawn at any time prior to the Expiration Date in accordance with the terms of this Letter of Transmittal.

Certificates for all Registered Notes delivered in exchange for tendered Restricted Notes and any Restricted Notes delivered herewith but not exchanged, in each case if registered in the name of the undersigned, shall be delivered to the undersigned at the address shown below the signature of the undersigned.

The undersigned, by completing the box entitled “Description of Restricted Notes Tendered Herewith” above and signing this Letter of Transmittal, will be deemed to have tendered the Restricted Notes as set forth in such box.

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TENDERING HOLDER(S) SIGN HERE

Must be signed by registered holder(s) exactly as name(s) appear(s) on certificate(s) for Restricted Notes hereby tendered or in whose name Restricted Notes are registered on the books of DTC or one of its participants, or by any person(s) authorized to become the registered holder(s) by endorsements and documents transmitted herewith. If signature is by a trustee, executor, administrator, guardian, attorney-in-fact, officer of a corporation or other person acting in a fiduciary or representative capacity, please set forth the full title of such person. See Instruction 3.

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INSTRUCTIONS

FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFERS

A holder of Restricted Notes may tender the same by (i) properly completing and signing this Letter of Transmittal and delivering the same, together with the certificate or certificates, if applicable, representing the Restricted Notes being tendered and any required signature guarantees and any other documents required by this Letter of Transmittal, to the Exchange Agent at its address set forth above on or prior to the Expiration Date or (ii) complying with the procedure for book-entry transfer described below.

Holders of Restricted Notes may tender Restricted Notes by book-entry transfer by crediting the Restricted Notes to the Exchange Agent’s account at DTC in accordance with ATOP and by complying with applicable ATOP procedures with respect to the Exchange Offers. DTC participants that are accepting the Exchange Offers should transmit their acceptance to DTC, which will edit and verify the acceptance and execute a book-entry delivery to the Exchange Agent’s account at DTC. DTC will then send a computer-generated message (an “Agent’s Message”) to the Exchange Agent for its acceptance in which the holder of the Restricted Notes acknowledges and agrees to be bound by the terms of, and makes the representations and warranties contained in, this Letter of Transmittal or the DTC participant confirms on behalf of itself and the beneficial owners of such Restricted Notes all provisions of this Letter of Transmittal (including any representations and warranties) applicable to it and such beneficial owners as fully as if it had completed the information required herein and executed and transmitted this Letter of Transmittal to the Exchange Agent. Delivery of the Agent’s Message by DTC will satisfy the terms of the Exchange Offers as to execution and delivery of a Letter of Transmittal by the participants identified in the Agent’s Message.

The method of delivery of this Letter of Transmittal, the Restricted Notes and any other required documents is at the election and risk of the holder, and except as otherwise provided below, the delivery will be deemed made only when actually received or confirmed by the Exchange Agent. If such delivery is by mail, it is suggested that registered mail with return receipt requested, properly insured, be used. In all cases, sufficient time should be allowed to permit timely delivery. No Restricted Notes or Letters of Transmittal should be sent to the Issuer. The Issuer reserves the right to reject any particular Restricted Note not properly tendered, or any acceptance that might, in the Issuer’s judgment, be unlawful. The Issuer also reserves the right to waive any defects or irregularities with respect to the form of, or procedures applicable to, the tender of any particular Restricted Note before the Expiration Date. Unless waived, any defects or irregularities in connection with tenders of Restricted Notes must be cured before the Expiration Date.

The Exchange Agent must receive the certificates for all physically tendered Restricted Notes, in proper form for transfer, or a book-entry confirmation, as the case may be, together with this properly completed and duly executed Letter of Transmittal or Agent’s Message with any required signature guarantees and any other documents required by this Letter of Transmittal, prior to the Expiration Date, all as provided in the Prospectus.

No alternative, conditional, irregular or contingent tenders will be accepted. All tendering holders, by execution of this Letter of Transmittal, shall waive any right to receive notice of the acceptance of the Restricted Notes for exchange.

If less than the entire principal amount of Restricted Notes evidenced by a submitted certificate is tendered, the tendering holder must fill in the aggregate principal amount of Restricted Notes tendered in the box entitled “Description of Restricted Notes Tendered Herewith.” A newly issued certificate for the Restricted Notes submitted but not tendered will be sent to such holder as soon as practicable after the Expiration Date. All Restricted Notes delivered to the Exchange Agent will be deemed to have been tendered unless otherwise clearly indicated.

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If not yet accepted, a tender pursuant to the Exchange Offers may be withdrawn prior to the Expiration Date.

To be effective with respect to the tender of Restricted Notes, a written notice of withdrawal must specify the name of the person who tendered the Restricted Notes to be withdrawn, identify the Restricted Notes to be withdrawn (including the principal amount of such Restricted Notes and, if applicable, the registration numbers and total principal amount of such Restricted Notes) and, where certificates for Restricted Notes have been transmitted, specify the name in which such Restricted Notes were registered if different from that of the withdrawing holder. Any such notice of withdrawal must also be signed by the person having tendered the Restricted Notes to be withdrawn in the same manner as the original signature on the Letter of Transmittal by which these Restricted Notes were tendered, including any required signature guarantees, or be accompanied by documents of transfer sufficient to permit the trustee for the Restricted Notes to register the transfer of these Restricted Notes into the name of the person having made the original tender and withdrawing the tender and, if applicable because the Restricted Notes have been tendered through the book-entry procedure, specify the name and number of the participant’s account at DTC to be credited if different than that of the person having tendered the Restricted Notes to be withdrawn.

If certificates for Restricted Notes have been delivered or otherwise identified to the Exchange Agent, then, prior to the release of such certificates, the withdrawing holder must also submit the serial numbers of the particular certificates to be withdrawn and a signed notice of withdrawal with signatures guaranteed by an Eligible Guarantor Institution (as defined below) unless such holder is an Eligible Guarantor Institution.

If Restricted Notes have been tendered pursuant to the procedure for book-entry transfer described above, any notice of withdrawal must specify the name and number of the account at DTC to be credited with the withdrawn Restricted Notes and otherwise comply with the procedures of such facility. The Issuer will determine all questions as to the validity, form and eligibility (including time of receipt) of such notices, and the Issuer’s determination shall be final and binding on all parties. The Issuer will deem any Restricted Notes so withdrawn not to have been validly tendered for exchange for purposes of the Exchange Offers. Any Restricted Notes that have been tendered for exchange but that are not exchanged for any reason will be returned to their holder without cost to the holder (or, in the case of Restricted Notes tendered by book-entry transfer into the Exchange Agent’s account of DTC according to the procedures described above, such Restricted Notes will be credited to an account maintained with DTC for Restricted Notes) promptly after withdrawal, rejection of tender or termination of the Exchange Offers. Properly withdrawn Restricted Notes may be retendered by following one of the procedures described under “Procedures for Tendering the Restricted Notes” in the Prospectus at any time prior to the expiration time.

If this Letter of Transmittal is signed by the registered holder(s) of the Restricted Notes tendered hereby, the signature must correspond with the name(s) as written on the face of the certificates without alteration, enlargement or any change whatsoever. If any of the Restricted Notes tendered hereby are owned of record by two or more joint owners, all such owners must sign this Letter of Transmittal.

If a number of Restricted Notes registered in different names are tendered, it will be necessary to complete, sign and submit as many separate copies of this Letter of Transmittal as there are different registrations of Restricted Notes.

When this Letter of Transmittal is signed by the registered holder or holders (which term, for the purposes described herein, shall include the book-entry transfer facility whose name appears on a security listing as the owner of the Restricted Notes) of Restricted Notes listed and tendered hereby, no endorsements of certificates or separate written instruments of transfer or exchange are required.

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If this Letter of Transmittal is signed by a person other than the registered holder or holders of the Restricted Notes listed, such Restricted Notes must be endorsed or accompanied by separate written instruments of transfer or exchange in form satisfactory to the Issuer and duly executed by the registered holder, in either case signed exactly as the name or names of the registered holder or holders appear(s) on the Restricted Notes.

If this Letter of Transmittal, any certificates or separate written instruments of transfer or exchange are signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or representative capacity, such persons should so indicate when signing, and, unless waived by the Issuer, proper evidence satisfactory to the Issuer of their authority so to act must be submitted.

Endorsements on certificates or signatures on separate written instruments of transfer or exchange required by this Instruction 3 must be guaranteed by an Eligible Guarantor Institution.

Signatures on this Letter of Transmittal must be guaranteed by an Eligible Guarantor Institution, unless Restricted Notes are tendered: (i) by a holder who has not completed the box entitled “Special Issuance Instructions” or “Special Delivery Instructions” on this Letter of Transmittal; or (ii) for the account of an Eligible Guarantor Institution. In the event that the signatures in this Letter of Transmittal or a notice of withdrawal, as the case may be, are required to be guaranteed, such guarantees must be by an Eligible Guarantor Institution which is a member of a firm of a registered national securities exchange or of the Financial Industry Regulatory Authority, a commercial bank or trust company having an office or correspondent in the United States or another “eligible guarantor institution” within the meaning of Rule 17Ad-15 under the Securities Exchange Act of 1934, as amended (an “Eligible Guarantor Institution”). If Restricted Notes are registered in the name of a person other than the signer of this Letter of Transmittal, the Restricted Notes surrendered for exchange must be endorsed by, or be accompanied by a written instrument or instruments of transfer or exchange, in satisfactory form as determined by the Issuer, in its sole discretion, duly executed by the registered holder with the signature thereon guaranteed by an Eligible Guarantor Institution.

Tendering holders should indicate, as applicable, the name and address to which the Registered Notes or certificates for Restricted Notes not exchanged are to be issued or delivered, if different from the name or address of the person signing this Letter of Transmittal. In the case of issuance in a different name, the taxpayer identification number of the person named must also be indicated. Holders tendering Restricted Notes by book-entry transfer may request that Restricted Notes not exchanged be credited to such account maintained at the book-entry transfer facility as such holder may designate.

If certificates representing Registered Notes or Restricted Notes for principal amounts not tendered or accepted for exchange are to be registered or issued in the name of any person other than the registered holder of the Restricted Notes tendered, or if tendered Restricted Notes or Registered Notes are to be registered in the name of any person other than the person signing this Letter of Transmittal, or if a transfer tax is imposed for any other reason, the amount of any such transfer taxes (whether imposed on the registered holder or any other person) will be payable by the applicable holder. If satisfactory evidence of payment of such taxes or exemption therefrom is not submitted herewith, the amount of such transfer taxes will be billed directly to such applicable holder.

The Issuer reserves the absolute right to waive, in whole or in part, any of the conditions to the Exchange Offers set forth in the Prospectus.

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Any holder whose Restricted Notes have been mutilated, lost, stolen or destroyed, should contact the Exchange Agent at the address indicated below for further instructions.

Questions relating to the procedure for tendering, as well as requests for additional copies of the Prospectus and this Letter of Transmittal, may be directed to the Exchange Agent at the address and telephone number set forth above. In addition, all questions relating to the Exchange Offers, as well as requests for assistance or additional copies of the Prospectus and this Letter of Transmittal, may be directed to the Exchange Agent at the address and telephone number indicated above.

IMPORTANT: This Letter of Transmittal (together with certificates of Restricted Notes or confirmation of book-entry transfer and all other required documents) must be received by the Exchange Agent on or prior to the Expiration Date.

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Exhibit 107

Calculation of Filing Fee Tables

FORM S-4

REGISTRATION STATEMENT

(Form Type)

HF Sinclair Corporation

(Exact Name of Registrant as Specified in its Charter)

Table 1: Newly Registered and Carry Forward Securities