$MPC · Marathon Petroleum Corp
Marathon Petroleum filed its Q3 2026 10-Q, reporting net income attributable to MPC of $7.447 billion ($26.59 diluted EPS) on revenue of $56.032 billion, up 61% year-over-year. Income from operations reached $10.45 billion versus $2.71 billion in Q3 2025. The company repurchased $6.288 billion in shares over the first nine months, reducing basic share count from 303M to 279M. Cash and equivalents swelled to $12.805 billion from $3.672 billion at year-end 2025.
- Q3 net income attributable to MPC: $7.447B vs $1.370B in Q3 2025, a 5.4x increase.
- Q3 diluted EPS: $26.59 vs $4.51 YoY; nine-month diluted EPS: $45.40 vs $8.15.
- Q3 revenue: $56.032B, up 61% YoY, driven by higher refined product prices (+$1.14/gal) and volumes (+247 mbpd).
- Operating cash flow for nine months: $22.18B vs $5.18B in prior year period.
- Share repurchases totaled $6.288B in the first nine months of 2026 vs $2.487B in 2025; shares outstanding fell to 279M basic from 303M.
MPC is up only 0.61% since filing despite a massive earnings beat, suggesting the refining margin windfall was largely priced in or offset by macro concerns. The $120.98B market cap and $6.3B buyback pace signal strong capital return but limited surprise.
MPC's $7.45B quarter — more than the prior nine months combined — captures the peak of the refining cycle, with $6.3B in buybacks signaling management's conviction in sustained cash generation.
MPC's results reflect the broader refining super-cycle: elevated crack spreads and strong distillate demand drove record downstream profits across the sector. The $1.14/gal realized price increase and 247 mbpd volume gain underscore tight product markets.
Refining margins are cyclical and the Q3 windfall from elevated product prices and volumes may not be repeatable. The 61% revenue jump is partly price-driven; a crude or demand reversal would compress income from operations sharply. MPLX noncontrolling interests and equity method income introduce structural complexity.