SHELL MIDSTREAM PARTNERS, L.P. 2nd QUARTER 2022 UNAUDITED RESULTS

Shell Midstream Partners, L.P. (NYSE: SHLX) (the “Partnership” or “Shell Midstream Partners”) reported net income attributable to the Partnership of $148 million for the second quarter of 2022, which equated to $0.33 per diluted common limited partner unit. Shell Midstream Partners also generated adjusted earnings before interest, income taxes, depreciation and amortization attributable to the Partnership of $191 million.

Total cash available for distribution was $164 million, which is $7 million higher than the prior quarter. The increasewas largely driven by increased volumes shipped on the Zydeco system and higher distributions from Explorer, partially offset by planned producer turnaround activity and higher expenses in the period.

The Board of Directors of our general partner (the “Board”) previously declared a cash distribution of $0.30 per limited partner common unit for the second quarter of 2022, consistent with the prior quarter, resulting in a coverage ratio for the quarter of 1.4x. The distribution will be paid August 12, 2022 to unitholders of record as of August 2, 2022.

FINANCIAL HIGHLIGHTS

Net income attributable to the Partnership was $148 million, compared to $158 million for the prior quarter.
Net cash provided by operating activities was $184 million, compared to $157 million for the prior quarter.
Cash available for distribution was $164 million, compared to $157 million for the prior quarter.
The board of directors of Colonial elected not to declare a dividend for the three months ended June 30, 2022.
Total cash distribution declared for common units was $118 million, resulting in a coverage ratio of 1.4x.
Adjusted EBITDA attributable to the Partnership was $191 million, compared to $182 million for the prior quarter.
As of June 30, 2022, the Partnership had $325 million of consolidated cash and cash equivalents on hand.
As of June 30, 2022, the Partnership had total debt of $2.5 billion, equating to 3.3x Debt to annualized Q2 2022 Adjusted EBITDA. Current debt levels are well within our targeted range and provide flexibility to the Partnership.

Adjusted EBITDA and Cash available for distribution are non-GAAP supplemental financial measures. See the reconciliation to their most comparable GAAP measures later in this press release.

ASSET HIGHLIGHTS

Significant Onshore Pipeline Transportation:

- Zydeco - Mainline volumes were 622 kbpd in the current quarter, compared to 535 kbpd in the prior quarter.

Significant Offshore Pipeline Transportation:

Volumes decreased primarily due to planned producer turnaround activity during the second quarter.
Mars - Volumes were 432 kbpd, compared to 488 kbpd in the prior quarter.
Amberjack - Volumes were 317 kbpd, compared to 340 kbpd in the prior quarter.
Eastern Corridor - Volumes were 353 kbpd, compared to 393 kbpd in the prior quarter.
Auger - Volumes were 41 kbpd, compared to 39 kbpd in the prior quarter.

Outlook

Certain offshore connected producers have planned turnarounds scheduled during 2022. We anticipate an impact of approximately $15 million to net income and CAFD from planned turnaround activity in 2022, of which approximately $14 million has been incurred in the six months ended June 30, 2022.
On July 25, 2022, the Partnership, along with various other parties, executed the Merger Agreement, which provides for a series of transactions (collectively, the “Transaction”), pursuant to which Shell USA, Inc. (“Shell USA”) will acquire all of the Partnership’s issued and outstanding common units not already owned by Shell USA or its affiliates at $15.85 per common unit in cash. The Board and the conflicts committee of the Board have each unanimously approved, and recommended that the unitholders approve, the Transaction. Concurrently with the execution of the Merger Agreement, an affiliate of Shell USA executed a written unitholder consent that was sufficient to approve the Transaction under the terms of the partnership agreement of the Partnership. The Transaction is expected to close in the fourth quarter of 2022. The Transaction is subject to a number of contingencies, including customary approvals and the satisfaction of other closing conditions as set forth in the Merger Agreement. There can be no assurance that the Transaction will be consummated on the terms described above or at all.
As of June 30, 2022, the Partnership has approximately $1.3 billion in available liquidity, which is a combination of cash and cash equivalents and availability under credit facilities.

ABOUT SHELL MIDSTREAM PARTNERS, L.P.

Shell Midstream Partners, L.P., headquartered in Houston, Texas, owns, operates, develops and acquires pipelines and other midstream and logistics assets. The Partnership’s assets include interests in entities that own (a) crude oil and refined products pipelines and terminals that serve as key infrastructure to transport onshore and offshore crude oil production to Gulf Coast and Midwest refining markets and deliver refined products from those markets to major demand centers and (b) storage tanks and financing receivables that are secured by pipelines, storage tanks, docks, truck and rail racks and other infrastructure used to stage and transport intermediate and finished products. The Partnership’s assets also include interests in entities that own natural gas and refinery gas pipelines that transport offshore natural gas to market hubs and deliver refinery gas from refineries and plants to chemical sites along the Gulf Coast.

For more information on Shell Midstream Partners and the assets owned by the Partnership, please visitwww.shellmidstreampartners.com.

Summarized Financial Statement Information

	For the Three Months Ended
(in millions of dollars, except per unit data)	June 30, 2022	March 31, 2022
Revenue (1)	$ 149	$ 135
Costs and expenses
Operations and maintenance	44	41
Cost of product sold	14	9
General and administrative	14	13
Depreciation, amortization and accretion	13	12
Property and other taxes	5	5
Total costs and expenses	90	80
Operating income	59	55
Income from equity method investments	97	108
Other income	9	10
Investment and other income	106	118
Interest income	8	8
Interest expense	22	21
Income before income taxes	151	160
Income tax expense	—	—
Net income	151	160
Less: Net income attributable to noncontrolling interests	3	2
Net income attributable to the Partnership	$ 148	$ 158
Preferred unitholder’s interest in net income attributable to the Partnership	$ 12	$ 12
Limited Partners’ interest in net income attributable to the Partnership’s common unitholders	$ 136	$ 146

Net income per Limited Partner Unit:
Common – Basic	$ 0.35	$ 0.37
Common – Diluted	$ 0.33	$ 0.36

Weighted average Limited Partner Units outstanding:
Common units – public – basic	123.8	123.8
Common units – SPLC – basic	269.5	269.5
Common units – public – diluted	123.8	123.8
Common units – SPLC – diluted	320.3	320.3

(1) Deferred revenue recognized for the three months ended June 30, 2022 and March 31, 2022, including the impact of overshipments and expiring credits, if applicable, was $4 million and $2 million, respectively.

Reconciliation of Adjusted EBITDA and Cash Available for Distribution to Net Income
	For the Three Months Ended
(in millions of dollars)	June 30, 2022	March 31, 2022
Net income	$ 151	$ 160
Add:
Depreciation, amortization and accretion	16	16
Interest income	(8)	(8)
Interest expense	22	21
Cash distribution received from equity method investments	119	111
Less:
Equity method distributions included in other income	9	8
Income from equity method investments	97	108
Adjusted EBITDA (1)	194	184
Less:
Adjusted EBITDA attributable to noncontrolling interests	3	2
Adjusted EBITDA attributable to the Partnership	191	182
Less:
Series A Preferred Units distribution	12	12
Net interest paid by the Partnership (2)	22	21
Maintenance capex attributable to the Partnership	5	2
Add:
Net adjustments from volume deficiency payments attributable to the Partnership	—	3
Principal and interest payments received on financing receivables	11	7
Reimbursement from Parent included in partner’s capital (3)	1	—
Cash available for distribution attributable to the Partnership’s common unitholders	$ 164	$ 157

(1) Excludes principal and interest payments received on financing receivables.(2) Amount represents both paid and accrued interest attributable to the period.(3) Amount in 2022 relates to reimbursement for final close out activities associated with the directional drill project on Zydeco that was finalized and operational in 2019.

See “Non-GAAP Financial Measures” later in this press release.

Reconciliation of Adjusted EBITDA and Cash Available for Distribution to Net Cash Provided by Operating Activities
	For the Three Months Ended
(in millions of dollars)	June 30, 2022	March 31, 2022
Net cash provided by operating activities	$ 184	$ 157
Add:
Interest income	(8)	(8)
Interest expense	22	21
Return of investment	25	16
Less:
Change in deferred revenue and other unearned income	2	6
Change in other assets and liabilities	27	(4)
Adjusted EBITDA (1)	194	184
Less:
Adjusted EBITDA attributable to noncontrolling interests	3	2
Adjusted EBITDA attributable to the Partnership	191	182
Less:
Series A Preferred Units distribution	12	12
Net interest paid by the Partnership (2)	22	21
Maintenance capex attributable to the Partnership	5	2
Add:
Net adjustments from volume deficiency payments attributable to the Partnership	—	3
Principal and interest payments received on financing receivables	11	7
Reimbursement from Parent included in partner’s capital (3)	1	—
Cash available for distribution attributable to the Partnership’s common unitholders	$ 164	$ 157

See “Non-GAAP Financial Measures” later in this press release.

Distribution Information

	For the Three Months Ended
(in millions of dollars, except per-unit and ratio data)	June 30, 2022	March 31, 2022
Quarterly distribution declared per common unit	$ 0.3000	$ 0.3000

Adjusted EBITDA attributable to the Partnership (1)	$ 191	$ 182

Cash available for distribution attributable to the Partnership’s common unitholders (1)	$ 164	$ 157

Distribution declared to limited partner units - common	$ 118	$ 118

Coverage Ratio (2)	1.4	1.3

(1) Non-GAAP measures. See reconciliation tables earlier in this press release. (2) Coverage ratio is equal to Cash available for distribution attributable to the Partnership divided by Total distribution declared.

Capital Expenditures and Investments
	For the Three Months Ended
(in millions of dollars)	June 30, 2022	March 31, 2022
Expansion capital expenditures	$ —	$ —
Maintenance capital expenditures	5	2
Total capital expenditures paid	$ 5	$ 2
Contributions to investment	$ —	$ —

Condensed Consolidated Balance Sheet Information
(in millions of dollars)	June 30, 2022	March 31, 2022
Cash and cash equivalents	$ 325	$ 251
Equity method investments	966	979
Property, plant & equipment, net	634	640
Total assets	2,231	2,197
Related party debt	2,542	2,542
Total deficit	(441)	(464)

Pipeline and Terminal Volumes and Revenue per Barrel
	For the Three Months Ended
	June 30, 2022	March 31, 2022
Pipeline throughput (thousands of barrels per day) (1)
Zydeco – Mainlines	622	535
Zydeco – Other segments	66	43
Zydeco total system	688	578
Amberjack total system	317	340
Mars total system	432	488
Bengal total system	315	305
Poseidon total system	262	239
Auger total system	41	39
Delta total system	206	224
Na Kika total system	48	72
Odyssey total system	99	97
Colonial total system	2,411	2,422
Explorer total system	618	464
Mattox total system (2)	114	120
LOCAP total system	881	726
Other systems	447	452

Terminals (3)(4)
Lockport terminaling throughput and storage volumes	205	229

Revenue per barrel ($ per barrel)
Zydeco total system (5)	$ 0.59	$ 0.71
Amberjack total system (5)	2.19	2.37
Mars total system (5)	1.57	1.27
Bengal total system (5)	0.34	0.36
Auger total system (5)	1.80	1.83
Delta total system (5)	0.80	0.66
Na Kika total system (6)	1.10	0.77
Odyssey total system (5)	1.06	0.98
Lockport total system (6)	0.25	0.22
Mattox total system (7)	1.52	1.52

(1) Pipeline throughput is defined as the volume of delivered barrels.(2) The actual delivered barrels for Mattox are disclosed in the above table for the comparative periods. However, Mattox is billed by monthly minimum quantity per dedication and transportation agreements. Based on the contracted volume determined in the agreements, the thousands of barrels per day for Mattox are 170 for both the three months ended June 30, 2022 and March 31, 2022.(3) Terminaling throughput is defined as the volume of delivered barrels, and storage is defined as the volume of stored barrels.(4) Refinery Gas Pipeline and our refined products terminals are not included above as they generate revenue under transportation and terminaling service agreements, respectively, that provide for guaranteed minimum throughput. (5) Based on reported revenues from transportation and allowance oil divided by delivered barrels over the same time period. Actual tariffs charged are based on shipping points along the pipeline system, volume and length of contract. (6) Based on reported revenues from transportation and storage divided by delivered and stored barrels over the same time period. Actual rates are based on contract volume and length. (7) Mattox is billed at a fixed rate of $1.52 per barrel for the monthly minimum quantity in accordance with dedication and transportation agreements.

FORWARD LOOKING STATEMENTS

This press release includes various “forward-looking statements” within the meaning of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended. All statements other than statements of historical fact are, or may be deemed to be, forward-looking statements. Forward-looking statements are statements of future expectations that are based on management’s current expectations and assumptions and involve known and unknown risks and uncertainties that could cause actual results, performance or events to differ materially from those expressed or implied in these statements. Forward-looking statements include, among other things, statements concerning management’s expectations, beliefs, estimates, forecasts, projections and assumptions. You can identify our forward-looking statements by words such as “anticipate,” “believe,” “estimate,” “budget,” “continue,” “potential,” “guidance,” “effort,” “expect,” “forecast,” “goals,” “objectives,” “outlook,” “intend,” “plan,” “predict,” “project,” “seek,” “target,” “begin,” “could,” “may,” “should” or “would” or other similar expressions that convey the uncertainty of future events or outcomes. In accordance with “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, these statements are accompanied by cautionary language identifying important factors, though not necessarily all such factors, which could cause future outcomes to differ materially from those set forth in forward-looking statements. In particular, expressed or implied statements concerning future actions, volumes, capital requirements, conditions or events, future operating results or the ability to generate sales, and statements concerning the Merger Agreement, the Transaction or any other proposed transaction and the likelihood of a successful consummation of the Transaction or any such proposed transaction are forward-looking statements. Forward-looking statements are not guarantees of performance. They involve risks, uncertainties and assumptions. Future actions, conditions or events and future results of operations may differ materially from those expressed in these forward-looking statements. Many of the factors that will determine these results are beyond our ability to control or predict. Forward-looking statements speak only as of the date of this press release, July 28, 2022, and we disclaim any obligation to update publicly or to revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. All forward-looking statements contained in this document are expressly qualified in their entirety by the cautionary statements contained or referred to in this paragraph. More information on these risks and other potential factors that could affect the Partnership’s financial results is included in the Partnership’s filings with the U.S. Securities and Exchange Commission, including in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of the Partnership’s most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings. If any of those risks occur, it could cause our actual results or the outcome of any particular event to differ materially from those contained in any forward-looking statement. Because of these risks and uncertainties, you should not place undue reliance on any forward-looking statement.

NON-GAAP FINANCIAL MEASURES

This press release includes the terms Adjusted EBITDA and cash available for distribution. We believe that the presentation of Adjusted EBITDA and cash available for distribution provides useful information to investors in assessing our financial condition and results of operations. Adjusted EBITDA and cash available for distribution are non-GAAP supplemental financial measures that management and external users of our consolidated financial statements, such as industry analysts, investors, lenders and rating agencies, may use to assess:

• our operating performance as compared to other publicly traded partnerships in the midstream energy industry, without regard to historical cost basis or, in the case of Adjusted EBITDA, financing methods;• the ability of our business to generate sufficient cash to support our decision to make distributions to our unitholders;• our ability to incur and service debt and fund capital expenditures; and• the viability of acquisitions and other capital expenditure projects and the returns on investment of various investment opportunities.

The GAAP measures most directly comparable to Adjusted EBITDA and cash available for distribution are net income and net cash provided by operating activities. These non-GAAP measures should not be considered as alternatives to GAAP net income or net cash provided by operating activities. Adjusted EBITDA and cash available for distribution have important limitations as analytical tools because they exclude some but not all items that affect net income and net cash provided by operating activities. They should not be considered in isolation or as substitutes for analysis of our results as reported under GAAP. Additionally, because Adjusted EBITDA and cash available for distribution may be defined differently by other companies in our industry, our definition of Adjusted EBITDA and cash available for distribution may not be comparable to similarly titled measures of other companies, thereby diminishing their utility.

References in this press release to Adjusted EBITDA refer to net income before income taxes, interest expense, interest income, gain or loss from disposition of fixed assets, allowance oil reduction to net realizable value, loss from revision of asset retirement obligations, and depreciation, amortization and accretion, plus cash distributed to Shell Midstream Partners, L.P. from equity method investments for the applicable period, less equity method distributions included in other income and income from equity method investments. We define Adjusted EBITDA attributable to Shell Midstream Partners, L.P. as Adjusted EBITDA less Adjusted EBITDA attributable to noncontrolling interests and Adjusted EBITDA attributable to Shell plc and its controlled affiliates, other than us, our subsidiaries and our general partner (collectively, “Parent”). References to cash available for distribution refer to Adjusted EBITDA attributable to Shell Midstream Partners, L.P., less maintenance capital expenditures attributable to Shell Midstream Partners, L.P., net interest paid by the Partnership, cash reserves, income taxes paid and Series A Preferred Units distributions, plus net adjustments from volume deficiency payments attributable to Shell Midstream Partners, L.P., reimbursements from Parent included in partners’ capital, principal and interest payments received on financing receivables and certain one-time payments received. Cash available for distribution will not reflect changes in working capital balances. We define maintenance capital expenditures as cash expenditures, including expenditures for (a) the acquisition (through an asset acquisition, merger, stock acquisition, equity acquisition or other form of investment) by the Partnership or any of its subsidiaries of existing assets or assets under construction, (b) the construction or development of new capital assets by the Partnership or any of its subsidiaries, (c) the replacement, improvement or expansion of existing capital assets by the Partnership or any of its subsidiaries or (d) a capital contribution by the Partnership or any of its subsidiaries to a person that is not a subsidiary in which the Partnership or any of its subsidiaries has, or after such capital contribution will have, directly or indirectly, an equity interest, to fund the Partnership or such subsidiary’s share of the cost of the acquisition, construction or development of new, or the replacement, improvement or expansion of existing, capital assets by such person, in each case if and to the extent such acquisition, construction, development, replacement, improvement or expansion is made to maintain, over the long-term, the operating capacity or operating income of the Partnership and its subsidiaries, in the case of clauses (a), (b) and (c), or such person, in the case of clause (d), as the operating capacity or operating income of the Partnership and its subsidiaries or such person, as the case may be, existed immediately prior to such acquisition, construction, development, replacement, improvement, expansion or capital contribution. For purposes of this definition, “long-term” generally refers to a period of not less than twelve months.

July 28, 2022

The information in this Report reflects the unaudited condensed consolidated financial position and results of Shell Midstream Partners, L.P.

Inquiries: Shell Media RelationsAmericas: +1 832 337 4355

Shell Investor RelationsNorth America: +1 832 337 2837

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