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Incentive Plans | 3 Months Ended
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Mar. 31, 2026
Share-Based Payment Arrangement [Abstract] |
Incentive Plans | Incentive Plans Equity Awards The MUSA 2013 Plan authorized the Executive Compensation Committee of our Board of Directors (“the Committee”) to grant non-qualified or incentive stock options, stock appreciation rights, stock awards (including restricted stock and restricted stock unit awards), dividend equivalent units, cash awards, and performance awards to our employees. No more than 5.5 million shares of MUSA common stock may be delivered under the MUSA 2013 Plan and no more than 1 million shares of common stock may be awarded to any one employee, subject to adjustment for changes in capitalization. The maximum cash amount payable pursuant to any “performance-based” award to any participant in any calendar year is $5.0 million. On May 4, 2023, the 2023 Omnibus Incentive Compensation Plan (the "MUSA 2023 Plan") was approved by the Company's shareholders and became effective for all future grants for both employees and directors. The MUSA 2023 Plan replaced the MUSA 2013 Plan and the 2013 Directors Plan, each of which expired on August 8, 2023. The MUSA 2023 Plan authorizes the Committee to grant to non-employee directors, employees, and consultants of the Company, or any of its subsidiaries, stock options (incentive stock options ("ISOs") and nonqualified stock options ("NQSO")), stock appreciation rights ("SARs"), restricted stock, restricted stock units ("RSUs"), performance awards or other cash-based awards and other stock-based awards. The maximum number of shares available for issuance under the MUSA 2023 Plan shall not exceed in the aggregate 1.725 million shares (subject to certain adjustments). Beginning with its initial quarterly dividend in December 2020, the Company has issued dividend equivalent units ("DEUs") on all outstanding, unvested equity awards (except stock options) in an amount commensurate with regular quarterly dividends paid on common stock. The terms of the DEUs mirror the underlying awards and will only vest if the related award vests. DEUs issued are included with grants in each respective table as applicable. STOCK OPTIONS – The Committee fixes the option price of each option granted at no less than fair market value ("FMV") on the date of the grant and fixes the option term at no more than 7 years from such date. Most of the nonqualified stock options granted in 2026 to certain employees by the Committee were granted in February 2026. The Black-Scholes valuation for these awards was $116.18 per option.
Assumptions used to value awards: |  |
Dividend yield |  | 0.66 | %
Expected volatility |  | 28.9 | %
Risk-free interest rate |  | 3.8 | %
Expected life (years) |  | 5.1
Stock price at valuation date |  | $ | 380.92
Changes in options outstanding for Company employees during the period from December 31, 2025 to March 31, 2026 are presented in the following table:
Options | Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (Millions of Dollars)
Outstanding at December 31, 2025 | 245,100 |  |  | $ | 222.54 |  |  |  |  |
Granted | 24,569 |  |  | $ | 380.92 |  |  |  |  |
Exercised | (95,090) |  |  | $ | 117.07 |  |  |  |  |
Forfeited | (4,294) |  |  | $ | 434.31 |  |  |  |  |
Outstanding at March 31, 2026 | 170,285 |  |  | $ | 299.25 |  |  | 3.7 |  | $ | 33.2 |
Exercisable at March 31, 2026 | 128,504 |  |  | $ | 261.30 |  |  | 2.9 |  | $ | 29.9 |
RESTRICTED STOCK UNITS – The Committee has granted time-based RSUs as part of the compensation plan for its executives and certain other employees since its inception. The awards granted in the current year were under the MUSA 2023 Plan, are valued at the grant date fair value, and vest over three years. The Committee has also granted time-based RSUs to the non-employee directors of the Company as part of their overall compensation package for being a member of the Board of Directors, which vest at the end of one year. For annual equity grants to non-employee directors, the directors may elect to defer receipt of their vested RSUs until their service ends. These RSUs are included in the RSU table below, will vest in one year, and will thereafter become deferred stock units. Changes in RSUs outstanding during the period from December 31, 2025 to March 31, 2026 are presented in the following table:
RSUs | Number of Units |  | Weighted Average Grant Date Fair Value |  | Total Fair Value (Millions of Dollars)
Outstanding at December 31, 2025 | 81,915 |  |  | $ | 376.60 |  |  |
Granted | 26,360 |  |  | $ | 381.62 |  |  |
Vested and issued | (13,861) |  |  | $ | 303.32 |  |  | $ | 5.5 |
Forfeited | (4,287) |  |  | $ | 397.02 |  |  |
Outstanding at March 31, 2026 | 90,127 |  |  | $ | 388.40 |  |  | $ | 44.5 |
DIRECTOR DEFERRED STOCK UNITS (MUSA 2023 Plan) — Non-employee directors can elect to receive their annual cash retainers in the form of Deferred Stock Units ("DSUs"). The DSUs are recognized at their fair value on the date of the grant. Director fees which are deferred into DSUs are calculated and expensed each quarter by taking fees earned during the quarter and dividing by the closing price of our common stock on the last trading day of the quarter. Each DSU represents the right to receive one share of common stock following the completion of a director's service. During the three month period ended March 31, 2026, we granted 243 DSUs and recorded director expense of $0.1 million related to the grants. At March 31, 2026, there were 2,848 Director DSUs vested and outstanding with an average grant date fair value of $406.45 per unit under the MUSA 2023 Plan. PERFORMANCE-BASED RESTRICTED STOCK UNITS – The Committee has granted performance-based restricted stock units (performance units or "PSUs") to its executives and certain other employees. In February 2026, the Committee awarded PSUs to certain employees. Half of the PSUs vest based on a three-year return on average capital employed ("ROACE") calculation and the other half vest based on a three-year total shareholder return ("TSR") calculation that compares MUSA to a group of 17 peer companies. The portion of the awards that vest based on TSR qualify as a market condition and must be valued using a Monte Carlo valuation model. For the TSR portion of the awards, the fair value was determined to be $467.85 per unit. For the ROACE portion of the awards, the valuation was based on the grant date fair value of $380.92 per unit and the number of awards will be periodically assessed to determine the probability of vesting. Changes in PSUs outstanding for Company employees during the period from December 31, 2025 to March 31, 2026 are presented in the following table:
Employee PSUs | Number of Units |  | Weighted Average Grant Date Fair Value |  | Total Fair Value (Millions of Dollars)
Outstanding at December 31, 2025 | 59,604 |  |  | $ | 438.28 |  |  |
Granted | 30,031 |  |  | $ | 380.92 |  |  |
Vested and issued | (38,178) |  |  | $ | 303.84 |  |  | $ | 13.9 |
Forfeited | (3,293) |  |  | $ | 476.46 |  |  |
Outstanding at March 31, 2026 | 48,164 |  |  | $ | 485.89 |  |  | $ | 23.8 |
2013 Stock Plan for Non-employee Directors Effective August 8, 2013, Murphy USA adopted the 2013 Murphy USA Stock Plan for Non-employee Directors (the “2013 Directors Plan”). The directors for Murphy USA are compensated with a mixture of cash payments and equity-based awards. RESTRICTED STOCK UNITS (2013 Directors Plan) – The Committee has also granted time based RSUs to the non-employee directors of the Company as part of their overall compensation package for being a member of the Board of Directors. Awards prior to 2023 vest at the end of three years and those granted in 2023 vested at the end of one year. Changes in Director RSUs outstanding for Company non-employee directors during the period from December 31, 2025 to March 31, 2026 are presented in the following table:
2013 Plan — Director RSUs | Number of Units |  | Weighted Average Grant Date Fair Value |  | Total Fair Value (Millions of Dollars)
Outstanding at December 31, 2025 | 2,274 |  |  | $ | 261.51 |  |  |
Granted | 4 |  |  | $ | 391.53 |  |  |
Vested and issued | 0 |  |  | $ | 0.00 |  |  | $ | 0.0 |
Outstanding at March 31, 2026 | 2,278 |  |  | $ | 261.51 |  |  | $ | 1.1 |
DEFERRED STOCK UNITS (2013 Directors Plan) — Effective January 1, 2023, non-employee directors could elect to receive their annual cash retainers in the form of DSUs. Each DSU represents the right to receive one share of common stock following the completion of a director's service. One DEU share was granted and vested on the DSUs during the quarter. At March 31, 2026 there were 427 Director DSUs outstanding with an average grant date fair value of $260.11 per unit under the 2013 Directors Plan. Share-based compensation for the three months ended March 31, 2026 and 2025, was $3.4 million and $5.9 million, respectively. Total income tax benefits realized from tax deductions related to stock option exercises under share-based payment arrangements was $1.1 million and zero for the three months ended March 31, 2026 and 2025, respectively.

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