DVN

SEC source: 0001090012-26-000124 · form4.xml · nonDerivative · entry 2

Gaspar Clay M · CIK 0001555889 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 619,152

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $51.07 to $51.09 per share. The reporting person undertakes to provide to Devon Energy Corporation, any security holder of Devon Energy Corporation or staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001090012-26-000123 · form4.xml · nonDerivative · entry 1

Lowe Robert Ferrall III · CIK 0002053677 · EVP EXPLORATION & PRODUCTION

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,720

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.95 to $50.96 per share. The reporting person undertakes to provide to Devon Energy Corporation, any security holder of Devon Energy Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001090012-26-000124 · form4.xml · nonDerivative · entry 1

Gaspar Clay M · CIK 0001555889 · Director · PRESIDENT AND CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 615,239

F1 · shares: Reflects restricted stock awarded that vests in three equal installments on the 10th day of September in each of the years 2027, 2028 and 2029.

SEC source: 0001090012-26-000097 · form4.xml · nonDerivative · entry 3

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,416,436

F2 · balance_after: The amount of shares beneficially owned following the reported transaction has been adjusted from the previously filed Form 4 for the reporting person to correct for a rounding difference in calculating the exchange of securities upon the effectiveness of the merger transaction between Coterra Energy Inc. and Devon Energy Corporation on May 7, 2026.

SEC source: 0001090012-26-000097 · form4.xml · nonDerivative · entry 2

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001090012-26-000105 · form4.xml · nonDerivative · entry 1

KINDICK KELT · CIK 0001204940 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,368

F1 · shares: Represents deferred restricted stock units granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000104 · form4.xml · nonDerivative · entry 1

Fox Ann G · CIK 0001727661 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,243

F1 · shares: Represents restricted stock granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000103 · form4.xml · nonDerivative · entry 1

Brock Amanda M · CIK 0001714868 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,301

F1 · shares: Represents restricted stock granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000102 · form4.xml · nonDerivative · entry 1

Hernandez Jacinto J · CIK 0001937040 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,368

F1 · shares: Represents deferred restricted stock units granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000101 · form4.xml · nonDerivative · entry 1

Kurz Karl F · CIK 0001292794 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,315

F1 · shares: Represents restricted stock granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000100 · form4.xml · nonDerivative · entry 1

Shellebarger Jeffrey Earle · CIK 0002068515 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,082

F1 · shares: Represents restricted stock granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000099 · form4.xml · nonDerivative · entry 1

SMOLIK BRENT J · CIK 0001378966 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,662

F1 · shares: Represents restricted stock granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000098 · form4.xml · nonDerivative · entry 1

WATTS MARCUS A · CIK 0001225202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,301

F1 · shares: Represents deferred restricted stock units granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000097 · form4.xml · nonDerivative · entry 1

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,684

F1 · shares: Represents restricted stock granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000095 · form4.xml · nonDerivative · entry 1

Williams Valerie · CIK 0001688234 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,034

F1 · shares: Represents deferred restricted stock units granted on June 30, 2026, to vest 100% on the day immediately following the grant date.

SEC source: 0001090012-26-000066 · form4.xml · nonDerivative · entry 1

Alexander Andrea · CIK 0001888092 · SVP & CHIEF ADMIN OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,529

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $46.73 to $46.76 per share. The reporting person undertakes to provide Devon Energy Corporation, any security holder of Devon Energy Corporation or the staff of the Securities and Exchange commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001090012-26-000108 · form4.xml · nonDerivative · entry 1

Lowe Robert Ferrall III · CIK 0002053677 · EVP & CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,476

F1 · shares: Reflects restricted stock awarded that vests 100% on June 10, 2029.

SEC source: 0001090012-26-000064 · form4.xml · nonDerivative · entry 6

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,408,753

SEC source: 0001090012-26-000064 · form4.xml · nonDerivative · entry 5

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001090012-26-000064 · form4.xml · nonDerivative · entry 4

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 315,892

F1 · kind: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. ("Merger Sub"), Coterra merged with and into Merger Sub, with Coterra surviving as a wholly owned subsidiary of Devon (the "Merger"). In connection with the closing of the Merger, the reporting person's employment with Coterra terminated and certain Devon restricted stock units accelerated and vested pursuant to a separation agreement between the reporting person and Coterra. The vesting of such restricted stock units was effective on May 15, 2026, following the expiration of the revocation period under such separation agreement. The reported disposition represents shares of Devon common stock withheld by Devon to satisfy the reporting person's tax obligations related to the vesting of the applicable restricted stock units, not a sale transaction by the reporting person.

SEC source: 0001090012-26-000064 · form4.xml · nonDerivative · entry 3

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 365,564

F1 · kind: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. ("Merger Sub"), Coterra merged with and into Merger Sub, with Coterra surviving as a wholly owned subsidiary of Devon (the "Merger"). In connection with the closing of the Merger, the reporting person's employment with Coterra terminated and certain Devon restricted stock units accelerated and vested pursuant to a separation agreement between the reporting person and Coterra. The vesting of such restricted stock units was effective on May 15, 2026, following the expiration of the revocation period under such separation agreement. The reported disposition represents shares of Devon common stock withheld by Devon to satisfy the reporting person's tax obligations related to the vesting of the applicable restricted stock units, not a sale transaction by the reporting person.

SEC source: 0001090012-26-000064 · form4.xml · nonDerivative · entry 2

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 418,370

F1 · kind: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. ("Merger Sub"), Coterra merged with and into Merger Sub, with Coterra surviving as a wholly owned subsidiary of Devon (the "Merger"). In connection with the closing of the Merger, the reporting person's employment with Coterra terminated and certain Devon restricted stock units accelerated and vested pursuant to a separation agreement between the reporting person and Coterra. The vesting of such restricted stock units was effective on May 15, 2026, following the expiration of the revocation period under such separation agreement. The reported disposition represents shares of Devon common stock withheld by Devon to satisfy the reporting person's tax obligations related to the vesting of the applicable restricted stock units, not a sale transaction by the reporting person.

SEC source: 0001090012-26-000064 · form4.xml · nonDerivative · entry 1

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 468,042

F1 · kind: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. ("Merger Sub"), Coterra merged with and into Merger Sub, with Coterra surviving as a wholly owned subsidiary of Devon (the "Merger"). In connection with the closing of the Merger, the reporting person's employment with Coterra terminated and certain Devon restricted stock units accelerated and vested pursuant to a separation agreement between the reporting person and Coterra. The vesting of such restricted stock units was effective on May 15, 2026, following the expiration of the revocation period under such separation agreement. The reported disposition represents shares of Devon common stock withheld by Devon to satisfy the reporting person's tax obligations related to the vesting of the applicable restricted stock units, not a sale transaction by the reporting person.

SEC source: 0001090012-26-000058 · form4.xml · nonDerivative · entry 1

Vela Adam M · CIK 0001944237 · SVP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,540

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.21 to $47.23 per share. The reporting person undertakes to provide Devon Energy Corporation, any security holder of Devon Energy Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001090012-26-000055 · form4.xml · nonDerivative · entry 1

Ritenour Jeffrey L · CIK 0001704328 · EVP & CHIEF CORP DEV OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 428,452

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.44 to $46.79 per share. The reporting person undertakes to provide to Devon Energy Corporation, any security holder of Devon Energy Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001193125-26-217510 · ownership.xml · nonDerivative · entry 4

Young, III Shannon E. · CIK 0001651794 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,480

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 48,798 Devon RSUs, which will vest on January 31, 2028.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 48,798 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217510 · ownership.xml · nonDerivative · entry 3

Young, III Shannon E. · CIK 0001651794 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 274,682

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 48,197 Devon RSUs, which will vest on January 31, 2029.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 48,197 Devon RSUs, which will vest on January 31, 2029.

SEC source: 0001193125-26-217510 · ownership.xml · nonDerivative · entry 2

Young, III Shannon E. · CIK 0001651794 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 226,485

F2 · security: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 48,197 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 48,798 Devon RSUs, which will vest on January 31, 2028.

F2 · price: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 48,197 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 48,798 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217510 · ownership.xml · nonDerivative · entry 1

Young, III Shannon E. · CIK 0001651794 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,490

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217507 · ownership.xml · nonDerivative · entry 1

WATTS MARCUS A · CIK 0001225202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,734

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby (the "Effective Time"), each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F2 · shares: This amount includes 51,756 shares of Devon Common Stock subject to restricted stock unit awards that, as of the Effective Time, were converted, on the same terms and conditions, from the corresponding deferred awards of vested restricted stock units relating to Coterra Common Stock ("Coterra Deferred RSU Awards") held by the reporting person into restricted stock unit awards covering a total number of shares of Devon Common Stock equal to the product of (i) the total number of shares of Coterra Common Stock subject to such Coterra Deferred RSU Awards as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby (the "Effective Time"), each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217505 · ownership.xml · nonDerivative · entry 4

Vela Adam M · CIK 0001944237 · SVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,882

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 25,619 Devon RSUs, which will vest on January 31, 2028.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 25,619 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217505 · ownership.xml · nonDerivative · entry 3

Vela Adam M · CIK 0001944237 · SVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,263

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 27,542 Devon RSUs, which will vest on January 31, 2029.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 27,542 Devon RSUs, which will vest on January 31, 2029.

SEC source: 0001193125-26-217505 · ownership.xml · nonDerivative · entry 2

Vela Adam M · CIK 0001944237 · SVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,721

F2 · security: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 27,542 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 25,619 Devon RSUs, which will vest on January 31, 2028.

F2 · price: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 27,542 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 25,619 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217505 · ownership.xml · nonDerivative · entry 1

Vela Adam M · CIK 0001944237 · SVP, General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,560

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217498 · ownership.xml · nonDerivative · entry 4

SIRGO BLAKE A · CIK 0001811762 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 199,039

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217498 · ownership.xml · nonDerivative · entry 3

SIRGO BLAKE A · CIK 0001811762 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,490

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 36,722 Devon RSUs, which will vest on January 31, 2029.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 36,722 Devon RSUs, which will vest on January 31, 2029.

SEC source: 0001193125-26-217498 · ownership.xml · nonDerivative · entry 2

SIRGO BLAKE A · CIK 0001811762 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,768

F2 · security: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 36,722 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

F2 · price: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 36,722 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217498 · ownership.xml · nonDerivative · entry 1

SIRGO BLAKE A · CIK 0001811762 · EVP, Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,497

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217494 · ownership.xml · nonDerivative · entry 4

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 520,848

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 134,194 Devon RSUs, which will vest on January 31, 2028.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 134,194 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217494 · ownership.xml · nonDerivative · entry 3

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 386,654

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 126,230 Devon RSUs, which will vest on January 31, 2029.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 126,230 Devon RSUs, which will vest on January 31, 2029.

SEC source: 0001193125-26-217494 · ownership.xml · nonDerivative · entry 2

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,424

F2 · security: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 126,230 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 134,194 Devon RSUs, which will vest on January 31, 2028.

F2 · price: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 126,230 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 134,194 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217494 · ownership.xml · nonDerivative · entry 1

JORDEN THOMAS E · CIK 0001196789 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,092,861

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217491 · ownership.xml · nonDerivative · entry 1

Shellebarger Jeffrey Earle · CIK 0002068515 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,515

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby, each share of Coterra's common stock, par value $0.10 per share was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share, subject to certain exceptions.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby, each share of Coterra's common stock, par value $0.10 per share was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share, subject to certain exceptions.

SEC source: 0001193125-26-217487 · ownership.xml · nonDerivative · entry 1

Hernandez Jacinto J · CIK 0001937040 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,801

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby (the "Effective Time"), each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F2 · shares: This amount includes 6,505 shares of Devon Common Stock subject to restricted stock unit awards that, as of the Effective Time, were converted, on the same terms and conditions, from the corresponding deferred awards of vested restricted stock units relating to Coterra Common Stock ("Coterra Deferred RSU Awards") held by the reporting person into restricted stock unit awards covering a total number of shares of Devon Common Stock equal to the product of (i) the total number of shares of Coterra Common Stock subject to such Coterra Deferred RSU Awards as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby (the "Effective Time"), each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217482 · ownership.xml · nonDerivative · entry 4

DeShazer Michael D. · CIK 0001887203 · EVP, Exploration & Production

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 204,321

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F5 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 19, 2025 and, at the Effective Time, converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217482 · ownership.xml · nonDerivative · entry 3

DeShazer Michael D. · CIK 0001887203 · EVP, Exploration & Production

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,772

F3 · security: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · security: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 36,722 Devon RSUs, which will vest on January 31, 2029.

F3 · price: These Devon RSUs relate to an award of Coterra performance stock units (a "Coterra PSU Award") that, pursuant to the Merger Agreement, at the Effective Time, was deemed earned at 100% of the target level as a result of the certification by the Compensation Committee of Coterra's board of directors to the actual level of performance achieved under the terms of such Coterra PSU Award prior to the Effective Time and was converted, on the same terms and conditions (other than any continuing performance-based vesting conditions and cash settlement features), into an award of Devon RSUs covering a number of shares of Devon Common Stock equal to the product of (i) the target number of shares of Coterra Common Stock subject to such Coterra PSU Award as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F4 · price: The Coterra PSU Award to which these Devon RSUs relate was granted to the reporting person on February 24, 2026 and, at the Effective Time, converted into 36,722 Devon RSUs, which will vest on January 31, 2029.

SEC source: 0001193125-26-217482 · ownership.xml · nonDerivative · entry 2

DeShazer Michael D. · CIK 0001887203 · EVP, Exploration & Production

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,050

F2 · security: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 36,722 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

F2 · price: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon Common Stock, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 36,722 Devon RSUs, which will vest on January 31, 2029, and the Coterra RSUs granted to the reporting person on February 19, 2025 were converted into 33,549 Devon RSUs, which will vest on January 31, 2028.

SEC source: 0001193125-26-217482 · ownership.xml · nonDerivative · entry 1

DeShazer Michael D. · CIK 0001887203 · EVP, Exploration & Production

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,779

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon. Pursuant to the Merger Agreement, at the Effective Time, each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

SEC source: 0001193125-26-217475 · ownership.xml · nonDerivative · entry 1

Conaway Gregory F · CIK 0001617609 · VP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,361

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon.

F2 · security: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon's common stock, par value $0.10 per share, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 18,361 Devon RSUs, which will vest on January 31, 2029.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc. (the ''Merger Agreement''), as of the effective time of the transactions contemplated thereby (the "Effective Time"), Coterra became a wholly owned subsidiary of Devon.

F2 · price: Pursuant to the Merger Agreement, at the Effective Time, each time-based Coterra restricted stock unit ("Coterra RSU") outstanding and unvested as of immediately prior to the Effective Time was converted into 0.7 Devon time-based restricted stock units ("Devon RSUs"), with each Devon RSU representing a contingent right to receive a share of Devon's common stock, par value $0.10 per share, subject to the same terms and conditions as were applicable to the corresponding Coterra RSU immediately prior to the Effective Time. The Coterra RSUs granted to the reporting person on February 24, 2026 were converted into 18,361 Devon RSUs, which will vest on January 31, 2029.

SEC source: 0001193125-26-217468 · ownership.xml · nonDerivative · entry 1

Brock Amanda M · CIK 0001714868 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,734

F1 · security: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby (the "Effective Time"), each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.

F2 · shares: This amount includes 34,541 shares of Devon Common Stock subject to restricted stock unit awards that, as of the Effective Time, were converted, on the same terms and conditions, from the corresponding deferred awards of vested restricted stock units relating to Coterra Common Stock ("Coterra Deferred RSU Awards") held by the reporting person into restricted stock unit awards covering a total number of shares of Devon Common Stock equal to the product of (i) the total number of shares of Coterra Common Stock subject to such Coterra Deferred RSU Awards as of immediately prior to the Effective Time, multiplied by (ii) 0.7.

F1 · price: On May 7, 2026, pursuant to the Agreement and Plan of Merger entered into on February 1, 2026, by and among Devon Energy Corporation (''Devon''), Coterra Energy Inc. (''Coterra") and Cubs Merger Sub, Inc., as of the effective time of the transactions contemplated thereby (the "Effective Time"), each share of Coterra's common stock, par value $0.10 per share ("Coterra Common Stock") was converted into the right to receive 0.7 shares of Devon's common stock, par value $0.10 per share ("Devon Common Stock"), subject to certain exceptions.