SEMG SemGroup Corporation

FORM 4 [X] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * MCDANIEL THOMAS R	2. Issuer Name and Ticker or Trading Symbol SemGroup Corp [ SEMG ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) 6120 SOUTH YALE AVE., SUITE 1500	3. Date of Earliest Transaction (MM/DD/YYYY) 12/5/2019
(Street) TULSA, OK 74136 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/5/2019		D		13640 (1)	D	$0.00 (1)	0 (2)	D
Common Stock	12/5/2019		D		47013 (1)	D	$0.00 (1)	0 (2)	I	Held in Trust (3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:
(1)	Pursuant to that certain Agreement and Plan of Merger, dated as of September 15, 2019, by and among SemGroup Corporation ("SemGroup"), Energy Transfer LP ("Energy Transfer"), and Nautilus Merger Sub LLC ("Merger Sub"), on December 5, 2019, Merger Sub merged with and into SemGroup (the "Merger"), with SemGroup surviving the Merger as a direct wholly owned subsidiary of Energy Transfer. Each outstanding share of SemGroup's Class A Common Stock, par value $0.01 per share(the "SemGroup Common Stock") held by the Reporting Person immediately prior to the effective time of the Merger automatically converted into 0.7275 shares of common units representing limited partner interests in Energy Transfer (the "Exchange").
(2)	As a result of the Exchange, the Reporting Person no longer owns, directly or indirectly, any shares of SemGroup Common Stock.
(3)	Shares held of record by the McDaniel Trust dated 7/26/2000 of which Mr. McDaniel and his wife are co-trustees. Each trustee has independent control and voting power over the Trust.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MCDANIEL THOMAS R 6120 SOUTH YALE AVE. SUITE 1500 TULSA, OK 74136	X

Signatures
William Gault, Power of Attorney for Thomas R. McDaniel		12/6/2019
**Signature of Reporting Person		Date