MGY

SEC source: 0001209191-20-027465 · doc4.xml · nonDerivative · entry 1

LARSON JAMES R · CIK 0001221981 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,348

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest on the earlier of (a) the day preceding the next annual meeting of stockholders of the Company at which directors are elected, or (b) the first anniversary of the grant date, in each case, subject to the director's continued service through the applicable vesting date.

SEC source: 0001209191-20-027467 · doc4.xml · nonDerivative · entry 1

SMITH DAN F · CIK 0001188511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,798

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest on the earlier of (a) the day preceding the next annual meeting of stockholders of the Company at which directors are elected, or (b) the first anniversary of the grant date, in each case, subject to the director's continued service through the applicable vesting date.

SEC source: 0001209191-20-027454 · doc4.xml · nonDerivative · entry 1

Acosta Arcilia · CIK 0001629039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,748

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest on the earlier of (a) the day preceding the next annual meeting of stockholders of the Company at which directors are elected, or (b) the first anniversary of the grant date, in each case, subject to the director's continued service through the applicable vesting date.

SEC source: 0001209191-20-027459 · doc4.xml · nonDerivative · entry 1

Busch Angela M · CIK 0001740094 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,298

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest on the earlier of (a) the day preceding the next annual meeting of stockholders of the Company at which directors are elected, or (b) the first anniversary of the grant date, in each case, subject to the director's continued service through the applicable vesting date.

SEC source: 0001209191-20-027096 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 373,579

SEC source: 0001209191-20-023107 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 374,933

SEC source: 0001209191-20-020073 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 376,287

SEC source: 0001209191-20-020069 · doc4.xml · nonDerivative · entry 1

Chase Valerie · CIK 0001748399 · VP - CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,612

SEC source: 0001209191-20-020077 · doc4.xml · nonDerivative · entry 1

Stavros Christopher G · CIK 0001613357 · Executive VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 452,928

SEC source: 0001209191-20-020071 · doc4.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 205,228

SEC source: 0001209191-20-017260 · doc4.xml · nonDerivative · entry 2

Busch Angela M · CIK 0001740094 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,461

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.20 to $6.70 inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation, any security holder thereof, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range.

SEC source: 0001209191-20-017260 · doc4.xml · nonDerivative · entry 1

Busch Angela M · CIK 0001740094 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,961

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.10 to $7.15 inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation, any security holder thereof, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range.

SEC source: 0001209191-20-016122 · doc4.xml · nonDerivative · entry 1

Chase Valerie · CIK 0001748399 · VP - CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,935

SEC source: 0001209191-20-016161 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 379,815

SEC source: 0001209191-20-016151 · doc4.xml · nonDerivative · entry 1

Stavros Christopher G · CIK 0001613357 · Executive VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 459,481

SEC source: 0001209191-20-016132 · doc4.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,428

SEC source: 0001209191-20-014660 · doc4.xml · nonDerivative · entry 1

Busch Angela M · CIK 0001740094 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,961

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.10 to $7.20 inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation, any security holder thereof, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range.

SEC source: 0001209191-20-013536 · doc4.xml · nonDerivative · entry 1

LARSON JAMES R · CIK 0001221981 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,511

SEC source: 0001209191-20-012570 · doc4.xml · nonDerivative · entry 2

CHAZEN STEPHEN I · CIK 0001026545 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,830,349

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.3766 to $8.0367, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation, any security holder thereof, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range.

SEC source: 0001209191-20-013532 · doc4.xml · derivative · entry 2

Chase Valerie · CIK 0001748399 · VP - CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,579

Underlying: Class A Common Stock · 18,579 shares

Expires not disclosed

F2 · derivative.exercise_price: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.exercise_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.expiration_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

SEC source: 0001209191-20-013532 · doc4.xml · nonDerivative · entry 1

Chase Valerie · CIK 0001748399 · VP - CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,902

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest in three substantially equal installments on March 1, 2021, 2022 and 2023, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001209191-20-013522 · doc4.xml · derivative · entry 2

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,332

Underlying: Class A Common Stock · 74,332 shares

Expires not disclosed

F2 · derivative.exercise_price: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.exercise_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.expiration_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

SEC source: 0001209191-20-013522 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 385,579

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest in three substantially equal installments on March 1, 2021, 2022 and 2023, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001209191-20-013526 · doc4.xml · derivative · entry 2

Stavros Christopher G · CIK 0001613357 · Executive VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,156

Underlying: Class A Common Stock · 105,156 shares

Expires not disclosed

F2 · derivative.exercise_price: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.exercise_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.expiration_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

SEC source: 0001209191-20-013526 · doc4.xml · nonDerivative · entry 1

Stavros Christopher G · CIK 0001613357 · Executive VP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 467,955

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest in three substantially equal installments on March 1, 2021, 2022 and 2023, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001209191-20-013528 · doc4.xml · derivative · entry 2

Millican Steve · CIK 0001757696 · SVP - Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,168

Underlying: Class A Common Stock · 41,168 shares

Expires not disclosed

F2 · derivative.exercise_price: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.exercise_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

F2 · derivative.expiration_date: Reflects performance share units ("PSUs") granted under the Plan. Each PSU, to the extent earned, represents a contingent right to receive one share of Class A Common Stock of the Company, and the officer may earn between 0% and 150% of the target number of PSUs reported above, based on the Compensation Committee's certification of the relative total shareholder return of the Company measured against a peer group of companies for the performance period commencing January 1, 2020, and ending December 31, 2022, and subject to the officer's continued employment through the date of settlement of the PSUs (which will occur within 60 days following the conclusion of the performance period).

SEC source: 0001209191-20-013528 · doc4.xml · nonDerivative · entry 1

Millican Steve · CIK 0001757696 · SVP - Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 212,837

F1 · shares: Reflects restricted stock units ("RSUs") granted under the Magnolia Oil & Gas Corporation Long Term Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of Class A common stock ("Class A Common Stock") of Magnolia Oil & Gas Corporation (the "Company"). The RSUs will vest in three substantially equal installments on March 1, 2021, 2022 and 2023, subject to the officer's continued employment through the applicable vesting date.

SEC source: 0001209191-20-012570 · doc4.xml · nonDerivative · entry 1

CHAZEN STEPHEN I · CIK 0001026545 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,694,349

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.9671 to $8.1973, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation, any security holder thereof, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within this range.

SEC source: 0001209191-20-006887 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 311,247

SEC source: 0001209191-20-000901 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,720

SEC source: 0001104659-19-073996 · tm1926583-2_4.xml · derivative · entry 1

EnerVest, Ltd. · CIK 0001375345 · Director · 10% owner

EnerVest Management GP, L.C. · CIK 0001749934 · 10% owner

EnerVest Energy Institutional Fund XIV-A, L.P. · CIK 0001634806 · 10% owner

EnerVest Energy Institutional Fund XIV-2A, L.P. · CIK 0001674589 · 10% owner

EnerVest Energy Institutional Fund XIV-3A, L.P. · CIK 0001677997 · 10% owner

EnerVest Energy Institutional Fund XIV-WIC, L.P. · CIK 0001749857 · 10% owner

EnerVest Energy Institutional Fund XIV-C-AIV, L.P. · CIK 0001749935 · 10% owner

EnerVest Investment Services, L.L.C. · CIK 0001749921 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,789,814

Underlying: Class A Common Stock · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: 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).

F3 · shares: Represents (i) 3,971,047 shares of Class B Common Stock transferred to the Issuer by EV XIV-A, (ii) 41,484 shares of Class B Common Stock transferred to the Issuer by EV XIV-WIC, (iii) 759,933 shares of Class B Common Stock transferred to the Issuer by EV XIV-2A, (iv) 783,947 shares of Class B Common Stock transferred to the Issuer by EV XIV-3A and (v) 443,589 shares of Class B Common Stock transferred to the Issuer by EV XIV-C-AIV.

F1 · derivative.exercise_date: 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).

F4 · derivative.expiration_date: Not applicable.

F2 · balance_after: 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 XIVWIC, L.P. ("EV XIV-WIC"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"). 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 and EV XIV-C-AIV (the funds collectively, the "Record Holders" and each, a "Record Holder").

F5 · balance_after: 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. (continue with footnote (6))

F6 · balance_after: 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.

F7 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by the Record Holders. (The shares of Class B Common Stock and Units held by the Record Holders are collectively referred to herein as the "Equity Interests.")

F8 · balance_after: EV XIV-A owns of record 56,779,231 shares of Class B Common Stock; EV XIV-2A owns of record 10,865,746 shares of Class B Common Stock; EV XIV-3A owns of record 11,209,125 shares of Class B Common Stock; EV XIV-WIC owns of record 593,147 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 6,342,565 shares of Class B Common Stock.

SEC source: 0001387131-19-009659 · ownership.xml · nonDerivative · entry 3

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 1,855,503

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.335 to $12.64, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001104659-19-073997 · tm1926583-3_4.xml · derivative · entry 1

Walker John B · CIK 0001374442 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 85,789,814

Underlying: Class A Common Stock · 6,000,000 shares

Expires not disclosed

F1 · derivative.exercise_price: 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).

F3 · shares: Represents (i) 3,971,047 shares of Class B Common Stock transferred to the Issuer by EV XIV-A, (ii) 41,484 shares of Class B Common Stock transferred to the Issuer by EV XIV-WIC, (iii) 759,933 shares of Class B Common Stock transferred to the Issuer by EV XIV-2A, (iv) 783,947 shares of Class B Common Stock transferred to the Issuer by EV XIV-3A and (v) 443,589 shares of Class B Common Stock transferred to the Issuer by EV XIV-C-AIV. (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.")

F1 · derivative.exercise_date: 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).

F4 · derivative.expiration_date: Not applicable.

F5 · balance_after: Represents the aggregate number of shares of Class B Common Stock owned by the Record Holders.

F6 · balance_after: EV XIV-A owns of record 56,779,231 shares of Class B Common Stock; EV XIV-2A owns of record 10,865,746 shares of Class B Common Stock; EV XIV-3A owns of record 11,209,125 shares of Class B Common Stock; EV XIV-WIC owns of record 593,147 shares of Class B Common Stock; and EV XIV-C-AIV owns of record 6,342,565 shares of Class B Common Stock.

F2 · ownership.nature: 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"), and EVFC GP XIV, LLC, the managing general partner of EnerVest Energy Institutional Fund XIV-C-AIV, L.P. ("EV XIV-C-AIV"). (EV XIV-A, EV XIV-2A, EV XIV-3A, EV XIV-WIC and EV XIV-C-AIV together, the "Record Holders"). Mr. Walker is an indirect owner and the Chief Executive Officer of EVM GP.

F7 · ownership.nature: Mr. Walker 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 the Equity Interests (as defined above) owned by the Record Holders. Mr. Walker disclaims beneficial ownership of the Equity Interests held by each of the Record Holders except to the extent of his pecuniary interest in each of the Record Holders and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

SEC source: 0001387131-19-009659 · ownership.xml · nonDerivative · entry 2

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 1,893,282

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.25 to $12.57, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009659 · ownership.xml · nonDerivative · entry 1

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 1,943,282

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.42, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009544 · macdougall-form4_121119.xml · nonDerivative · entry 3

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 1,993,282

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.26, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009544 · macdougall-form4_121119.xml · nonDerivative · entry 2

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,005,503

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.115, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009544 · macdougall-form4_121119.xml · nonDerivative · entry 1

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,055,503

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.74 to $11.85, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009483 · mgy-4_120619.xml · nonDerivative · entry 3

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,058,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.66 to $11.815, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009483 · mgy-4_120619.xml · nonDerivative · entry 2

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,108,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.40 to $11.74, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009483 · mgy-4_120619.xml · nonDerivative · entry 1

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,158,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.23 to $11.58, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009395 · mgy-4_120319.xml · nonDerivative · entry 3

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,208,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.14 to $11.37, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009395 · mgy-4_120319.xml · nonDerivative · entry 2

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,258,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.18 to $11.44, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009395 · mgy-4_120319.xml · nonDerivative · entry 1

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,308,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.89 to $11.12, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009292 · mgy-form4_112719.xml · nonDerivative · entry 3

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,358,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.93 to $11.23, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001209191-19-059082 · doc4.xml · nonDerivative · entry 1

Yang Timothy D. · CIK 0001627951 · EVP - General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 314,368

SEC source: 0001387131-19-009292 · mgy-form4_112719.xml · nonDerivative · entry 2

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,408,677

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.825 to $11.12, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009292 · mgy-form4_112719.xml · nonDerivative · entry 1

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,458,003

F5 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.28 to $11.43, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F4 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009101 · mgy-4_112519.xml · nonDerivative · entry 2

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,505,503

F4 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.34 to $11.63, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F3 · ownership.nature: Held through a personal vehicle.

SEC source: 0001387131-19-009101 · mgy-4_112519.xml · nonDerivative · entry 1

MacDougall Michael G. · CIK 0001429772 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,555,503

F4 · shares: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Michael MacDougall.

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.46 to $11.69, inclusive. The reporting person undertakes to provide to Magnolia Oil & Gas Corporation (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "Commission"), upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F3 · ownership.nature: Held through a personal vehicle.