Marathon Petroleum (MPC): A 24% Beat, A $5.1B Quarter - And 45% Of It Is A Different Stock

Marathon Petroleum Corporation (MPC) Q2 2026 — Net income attributable to MPC $5,138M, or $17.73 diluted, vs $14.27 consensus - a 24% beat, and GAAP equals adjusted with ZERO add-backs. Revenue $52,337M, +53.5%. Adjusted EBITDA $8,460M vs $3,286M. Refining margin $36.33/bbl vs $17.58. But throughput FELL 3.8% to 2,944 mbpd and utilisation dropped to 94% from 97%. MPC closed $312.61, up just 1.8%. Marathon Petroleum just printed the biggest quarter in its history - $5.1 billion of profit, $17.73 a share against $14.27 expected, revenue up 53% - and the stock closed up 1.8%. Underneath: every dollar of it came from one line, the refining margin, which more than doubled to $36.33 a barrel while the volume through those same refineries FELL 3.8%. And 45% of Marathon's market value is a separately listed stock. THE CALL: HOLD (3/5, A HISTORIC QUARTER, AT A PRICE THAT ALREADY ASSUMES A NORMAL ONE) — base-case value ~$327.0 vs ~$312.61 today. KEY METRICS: - CALL: HOLD 3/5, fair value ~$327 vs the $312.61 close (+4.6%). This is a sum-of-the-parts, not a DCF, because 45% of MPC is a listed stock. Refining stub at mid-cycle: $20.50/bbl margin less $5.85 operating and $6.00 distribution = $8.75/bbl segment profit on 1,077M barrels = $9.42B; plus renewables $0.35B, less corporate $1.05B = $8.72B, at 6.25x = $54.5B. Plus MPC's 647M MPLX units at 11.0x = $37.6B. Less parent net debt $0.41B. Equity $91.7B on 280,824,763 shares = $327. Bear $232-$265, bull $375-$435. The Street: Buy, ~$330. - WHICH EPS IS REAL - AND FOR ONCE THEY ARE THE SAME. Marathon's own reconciliation: net income attributable to MPC $5,138M, pre-tax adjustments ZERO, adjusted net income $5,138M. Diluted $17.73. Adjusted diluted $17.73. Identical. They do adjust when there is something to adjust - a $32M clean-fuel tax credit taken out over six months, which is why H1 reads $19.30 GAAP vs $19.22 adjusted. In the June quarter, nothing. So the 24% beat is apples-to-apples on both bases. - THE BEAT WAS 105% MARGIN AND MINUS 4% VOLUME. Net throughput 2,944 mbpd over 91 days = 267.9M barrels. Refining margin went $17.58 to $36.33, worth +$5,023M on this quarter's barrels. The volume decline, at last year's margin, is worth -$186M. Segment profit actually rose $4,765M. Crude refined fell 2,883 to 2,798 mbpd; utilisation 97% to 94%; Mid-Continent ran 11.5% below last year. Marathon processed LESS oil and earned four times the money. Gulf Coast $36.52 vs $15.17, Mid-Con $33.68 vs $17.86, West Coast $41.28 vs $23.18. - THE BALANCE SHEET SCREENS WRONG. Every screen shows $32,816M of debt and ~1.5x net debt/EBITDA. But $25,640M of that is MPLX's, and the 10-Q states plainly that MPLX's creditors have NO recourse to MPC's general credit. At the parent: $7,176M of debt against ~$6,768M of MPC-level cash ($7,768M consolidated less $1,000M at MPLX) = roughly $408M of net debt. Effectively unlevered. One caution: of $11,448M of H1 operating cash flow, about $3,190M was working capital - 28% is timing, not earnings. - 45% OF THE MARKET CAP IS A LISTED STOCK. MPC owns 647 million MPLX common units - 64% of the partnership - worth $39.2B at MPLX's $60.51 close. On 280.8M MPC shares that is $139.40 of the $312.61 price. You pay ~$173 a share for thirteen refineries. And the halves behave differently: refining segment profit +252%, midstream +8% ($1,778M vs $1,641M), fee-based and indifferent to the crack. Cost: $400M of the quarter's net income belongs to MPLX's public holders. Buyback: 9M shares at $258.36 in Q2, 13M YTD, $6.1B left. What to watch: Changes our mind UP: two more quarters of refining segment profit above $25/bbl with utilisation back over 96%, or MPLX reaffirming 12.5% distribution growth into 2028. Confirms the bear: refining margin back under $15/bbl, or the buyback slowing below $1.5B a quarter - management telling you they no longer see value either. We'd buy at $245-$260, where Marathon itself repurchased 9M shares at $258.36. Also on YouTube: @ChargedAlpha DISCLAIMER: For informational and educational purposes only. Not financial advice. Do your own research before any investment decision.