Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	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 * Yorktown VII Associates LLC	2. Date of Event Requiring Statement (MM/DD/YYYY) 3/12/2019	3. Issuer Name and Ticker or Trading Symbol Antero Midstream Corp [AM]
(Last)        (First)        (Middle) 410 PARK AVENUE, 19TH FLOOR	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __ X __ Director                            ___ X ___ 10% Owner _____ Officer (give title below)          _____ Other (specify below)
(Street) NEW YORK, NY 10022        (City)              (State)              (Zip)	5. 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 Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common shares representing limited partner interests	4596064   (1) (2)	I	See footnote   (3)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:
(1)	On March 12, 2019, in connection with the conversion of Antero Midstream GP LP ("AMGP") from a limited partnership to a corporation named Antero Midstream Corporation ("New AM") under the laws of the State of Delaware (the "Conversion"), each common share representing limited partnership interests of AMGP was converted into one share of common stock of New AM. The common shares representing limited partnership interests of AMGP reported herein represent holdings of Yorktown Energy Partners VII, L.P., a Delaware limited partnership ("Yorktown VII") immediately prior to the Conversion.
(2)	These securities were owned directly by Yorktown VII. The Reporting Person is the sole general partner of Yorktown VII Company LP. Yorktown VII Company LP is the sole general partner of Yorktown VII.
(3)	The Reporting Person disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for Section 16 or any other purpose.

Remarks: Yorktown VII is a director-by-deputization solely for purposes of Section 16 of the Exchange Act.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Yorktown VII Associates LLC 410 PARK AVENUE, 19TH FLOOR NEW YORK, NY 10022	X	X

Signatures
Yorktown VII Associates LLC, /s/ W. Howard Keenan, Jr. , Managing Member		3/14/2019
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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