MARATHON PETROLEUM CORP (MPC)
Sector: Energy
2026 Annual Meeting Analysis
MARATHON PETROLEUM CORP · Meeting: April 29, 2026
Directors FOR
4
Directors AGAINST
0
Say on Pay
FOR
Auditor
FOR
Director Elections
Election of Directors (Class III)
CEO and director since August 2024, well within the 24-month new-director exemption from the TSR trigger; MPC's 3-year TSR of +101% outperforms the peer median of +41.6% by +59.4pp, which is below the 65pp underperformance threshold needed to trigger a vote against, so no TSR concern applies.
Director since 2024, well within the 24-month new-director exemption from the TSR trigger; she holds two outside public board seats (Constellation Energy, Woodward), which is below the four-board overboarding limit, and attendance was 100%.
Director since 2017 with MPC's strong 3-year TSR of +101% outperforming the peer median by +59.4pp — well short of the 65pp threshold required to trigger a vote against a long-tenured director; he holds two outside public board seats (Kosmos Energy, MPLX GP counted as one with MPC) and attended 100% of meetings.
Director since 2011 and Independent Lead Director; MPC's 3-year TSR of +101% outperforms the peer median by +59.4pp, below the 65pp underperformance threshold needed to trigger a vote against; he holds three outside public board seats (PSEG, Trane Technologies, MPLX GP counted as one with MPC), within the four-board limit, and attended 100% of meetings.
All four Class III nominees pass the policy screens: MPC's 3-year TSR of +101% outperforms its disclosed compensation peer group median of +41.6% by +59.4 percentage points, which falls below the 65pp threshold required to trigger a vote against any director; no director is overboarded; all attended 100% of board and committee meetings in 2025; and the board discloses a skills matrix with relevant qualifications for each nominee.
Say on Pay
✓ FORCEO
Maryann T. Mannen
Total Comp
$19,016,261
Prior Support
93%%
CEO total compensation of approximately $19 million is reasonable for a large-cap integrated energy company of MPC's scale (market cap ~$70 billion), and the compensation structure is well-designed: 92% of CEO pay is at-risk, with 61% tied to performance-based metrics including three-year relative total shareholder return and free cash flow per share benchmarked against peers. Pay-for-performance alignment is strong — MPC's PSUs paid out at 167% of target, reflecting an 83rd-percentile TSR result among peers over the 2023-2025 period, which is consistent with MPC's actual strong outperformance of its peers. Shareholders broadly affirmed the program with 93% support at the 2025 annual meeting, no concerns about clawback policy quality exist, and the compensation committee made no changes that would reduce shareholder protections.
Auditor Ratification
✓ FORAuditor
PricewaterhouseCoopers LLP
Tenure
16 yrs
Audit Fees
$11,048,000
Non-Audit Fees
$372,000
PwC has served as MPC's auditor since 2010 (approximately 16 years), which is below the 25-year tenure threshold that would trigger a concern; non-audit fees of approximately $372,000 (audit-related $370,000 plus other $2,000) represent only about 3.4% of audit fees of $11,048,000, well below the 50% threshold that would raise independence concerns; PwC is a Big 4 firm appropriate for a company of MPC's size and complexity.
Stockholder Proposals
2 proposals submitted by shareholders
Proposal 4
Approve an Amendment to the Certificate of Incorporation to Declassify the Board of Directors
This is a board-proposed amendment to phase out the current three-class board structure so that, by 2029, all directors stand for election every year — a mainstream governance improvement that gives shareholders more frequent accountability over the full board. The change clearly improves shareholder rights relative to the current baseline, where directors serve staggered three-year terms and shareholders can only vote on roughly one-third of the board each year. The board has submitted this proposal every year since 2021, and it has consistently won majority support from votes actually cast; the only reason it has not passed is the existing 80% supermajority requirement — which Proposal 5 would also eliminate.
Proposal 5
Approve an Amendment to the Certificate of Incorporation to Eliminate Supermajority Provisions
This amendment would eliminate the current requirement that 80% of all outstanding shares must approve changes to certain charter provisions or the removal of directors, replacing it with a simple majority of outstanding shares — the lowest standard allowed under Delaware law. Supermajority thresholds protect incumbent management from shareholder-driven change and are widely recognized as an anti-shareholder governance feature; removing them directly improves shareholders' ability to hold the board accountable. The board's willingness to sponsor this proposal, after repeated shareholder majority support fell short of the entrenchment-level 80% bar, demonstrates genuine responsiveness to investors and warrants support.
Overall Assessment
The 2026 MPC annual meeting ballot is straightforward and shareholder-friendly: all four director nominees pass performance and governance screens given MPC's exceptional stock outperformance of peers over three years, the auditor ratification raises no independence or tenure concerns, and the executive compensation program is well-structured with a strong pay-for-performance track record endorsed by 93% of shareholders last year. The two charter amendment proposals — declassifying the board and eliminating supermajority voting requirements — are genuine governance improvements that the board has persistently championed and that deserve shareholder support.
Compensation Peer Group
9 companies disclosed in 2026 proxy filing