MUSA · Murphy USA Inc.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

The option exercise and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2026.

Represents a net exercise of outstanding stock option. These shares were withheld by the company for payment of the exercise price and applicable taxes using the closing price on May 25, 2026 of $542.74.

The option exercise and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2026.

Award granted under the 2013 Long-term Incentive Plan.

The option exercise and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2026.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Award granted under the 2013 Long-term Incentive Plan.

The option vests in two equal installments, the first half two years after the grant date and the final half three years after the grant date.

Award granted under the 2013 Long-term Incentive Plan.

The option vests in two equal installments, the first half two years after the grant date and the final half three years after the grant date.

Represents a net exercise of outstanding stock options. These shares were withheld by the Company for payment of the exercise price and applicable taxes, using the closing price on May 14, 2026, of $576.20.

Represents a net exercise of outstanding stock options. These shares were withheld by the Company for payment of the exercise price and applicable taxes, using the closing price on May 14, 2026, of $576.20.

Represents a net exercise of outstanding stock options. These shares were withheld by the Company for payment of the exercise price and applicable taxes, using the closing price on May 4, 2026, of $592.81.

Granted under the 2023 Omnibus Incentive Plan.

The option vests in two equal installments, the first half two years after the grant date and the final half three years after the grant date.

Represents a net exercise of outstanding stock options. These shares were withheld by the Company for payment of the exercise price and applicable taxes, using the closing price on May 4, 2026, of $592.81.

Award granted under the 2013 Long-term Incentive Plan.

The option vests in two equal installments, the first half two years after the grant date and the final half three years after the grant date.

Awarded under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Awarded under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Awarded under the 2023 Omnibus Incentive Plan.

The option vests in two equal installments, the first half two years after the grant date and the final half three years after the grant date.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represent fully-vested RSUs issued in lieu of the reporting person's quarterly cash retainer(s). The reporting person has elected to defer settlement of RSUs and accrued dividend equivalent units thereon to the reporting person's termination of service from the Board, in accordance with their deferral election form.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Represents reallocation from the Company's stock fund into other investment alternatives under the Company's 401(K) Plan by the Reporting Person's spouse.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Includes dividend equivalent units accrued with respect to the underlying RSUs.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Award granted under the 2023 Omnibus Incentive Plan.

These Securities generally do not carry a Conversion Price, Exercisable Date, or Expiration Date.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

Represents Restricted Stock Units ("RSUs") and corresponding dividend equivalents accrued thereon granted to the Reporting Person that have vested and settled in shares of the Company's stock on a one-for-one basis, except for fractional dividend equivalents which have been settled in cash.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 11, 2025.