SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* EnerVest, Ltd. (Last) (First) (Middle) 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Magnolia Oil & Gas Corp [ MGY ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 10/07/2021
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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
Class A Common Stock	10/07/2021		C		3,622,962(4)	A	(1)	23,735,406(2)(3)(5)(9)(10)	D
Class A Common Stock	10/07/2021		S		5,000,000(13)	D	$18.5(7)	18,735,406(2)(3)(9)(10)(12)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction 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 (Month/Day/Year)		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: 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
Class B Common Stock	(1)(4)	10/07/2021		C			3,622,962(4)	(1)	(8)	Class A Common Stock	3,622,962(4)	$0(1)	49,292,476(2)(3)(6)(9)(10)(11)	D

1. Name and Address of Reporting Person* EnerVest, Ltd. (Last) (First) (Middle) 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Management GP, L.C. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Energy Institutional Fund XIV-A, L.P. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Energy Institutional Fund XIV-2A, L.P. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Energy Institutional Fund XIV-3A, L.P. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Energy Institutional Fund XIV-WIC, L.P. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Energy Institutional Fund XIV-C-AIV, L.P. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Energy Institutional Fund XIV-C, L.P. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* EnerVest Investment Services, L.L.C. (Last) (First) (Middle) C/O ENERVEST LTD. 1001 FANNIN STREET, SUITE 800 (Street) HOUSTON TX 77002 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Shares of the Issuer's Class B Common Stock ("Class B Common Stock"), when combined with an equal number of units ("Units") of Magnolia Oil & Gas Parent LLC, a Delaware limited liability company of which the Issuer is the managing member, are exchangeable from time to time at the option of the holders thereof for shares of the Issuer's Class A Common Stock ("Class A Common Stock") on a one-for-one basis (or, at the Issuer's option, for cash).

2. EnerVest Management GP, L.C. ("EVM GP") is the general partner of EnerVest, Ltd. ("EnerVest"), which is the sole member, with sole control over the actions of, each of, EVFA GP XIV, LLC, EVFA XIV-2A, LLC and EVFA XIV-3A, LLC, the managing general partners, respectively, of EnerVest Energy Institutional Fund XIV-A, L.P. ("EV XIV-A"), EnerVest Energy Institutional Fund XIV-2A, L.P. ("EV XIV-2A") and EnerVest Energy Institutional Fund XIV-3A, L.P. ("EV XIV-3A"). EnerVest is also the sole member, with sole control over the actions of, each of, EnerVest Holding XIV, LLC, the general partner of EnerVest Energy Institutional Fund XIV-WIC, L.P. ("EV XIV-WIC"), EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C, L.P. ("EV XIV-C").

3. EnerVest Investment Services, L.L.C. ("EIS, LLC") is the investment advisor for EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, EV XIVC- AIV and EV XIV-C (such six entities together, the "Record Holders" and each, a "Record Holder").

4. Represents: (i) 2,397,825 shares of Class B Common Stock held by EV XIV-A converted to the same number of shares of Class A Common Stock; (ii) 25,049 shares of Class B Common Stock held by EV XIV-WIC converted to the same number of shares of Class A Common Stock; (iii) 458,868 shares of Class B Common Stock held by EV XIV-2A converted to the same number of shares of Class A Common Stock; (iv) 473,369 shares of Class B Common Stock held by EV XIV-3A converted to the same number of shares of Class A Common Stock; and (v) 267,851 shares of Class B Common Stock held by EV XIV-C-AIV converted to the same number of shares of Class A Common Stock (collectively, the "October 2021 Conversion Shares").

5. Represents the October 2021 Conversion Shares and 20,112,444 shares of Class A Common Stock held by EV XIV-C.

6. Represents shares of Class B Common Stock held as follows: (i) 32,623,791 shares of Class B Common Stock held by EV XIV-A; (ii) 340,804 shares of Class B Common Stock held by EV XIV-WIC; (iii) 6,243,160 shares of Class B Common Stock held by EV XIV-2A; (iv) 6,440,457 shares of Class B Common Stock held by EV XIV-3A; and (v) 3,644,264 shares of Class B Common Stock held by EV XIV-C-AIV.

7. This amount represents the purchase price in the 10b5-1 Trade (as defined below).

8. Not applicable.

9. Each Record Holder and each of EVM GP, EnerVest, EVFA GP XIV, LLC, EVFA XIV-2A, LLC, EVFA XIV-3A, LLC, EnerVest Holding XIV, LLC, EVFC GP XIV, LLC, and EIS, LLC (collectively, the "Non-Fund Entities") directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the Equity Interests (as defined below) owned by the Record Holders and, therefore, a "ten percent holder" hereunder.

10. Each Record Holder and each Non-Fund Entity disclaims beneficial ownership of the Equity Interests reported herein, except to the extent of its pecuniary interest therein, and, with respect to each of the Record Holders, except to the extent of its respective direct ownership reported herein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

11. Represents the aggregate number of shares of Class B Common Stock owned by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV. (EV XIV-C's shares of Class A Common Stock, together with the shares of Class B Common Stock and Units held by EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC, and EV XIV-C-AIV, are collectively referred to herein as the "Equity Interests.")

12. EV XIV-C owns of record 18,735,406 shares of Class A Common Stock.

13. Represents shares of Class A Common Stock sold in a transaction pursuant to the 10b5-1 Sale Plan Agreements (the "Plans") entered into by the Record Holders on September 30, 2021 (the "10b5-1 Trade"). All sales contemplated by the Plans have been completed, and there are no securities available under the Plans remaining to be sold.

	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd.	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C.	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd., the sole member of EVFA GP XIV, LLC, the Managing General Partner of EnerVest Energy Institutional Fund XIV-A, L.P.	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd., the sole member of EVFA XIV-2A, LLC, the Managing General Partner of EnerVest Energy Institutional Fund XIV-2A, L.P	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd., the sole member of EVFA XIV-3A, LLC, the Managing General Partner of EnerVest Energy Institutional Fund XIV-3A, L.P.	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd., the sole member of EnerVest Holding XIV, LLC, the General Partner of EnerVest Energy Institutional Fund XIV-WIC, L.P.	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd., the sole member of EVFC GP XIV, LLC, the Managing General Partner of EnerVest Energy Institutional Fund XIV-C, L.P.	10/12/2021
	/s/ Jud Walker, President & Chief Executive Officer, EnerVest Management GP, L.C., the General Partner of EnerVest, Ltd., the sole member of EVFC GP XIV, LLC, the Managing General Partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P.	10/12/2021
	/s/ Travis W. Hancock, Senior Vice President & Chief Financial Officer, EnerVest Operating, L.L.C., the General Partner of EnerVest Holding, L.P., the sole member of EnerVest Investment Services, L.L.C.	10/12/2021
	** Signature of Reporting Person	Date
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