The country’s largest refiner earned more than five times what it made a year ago. Here is what a $45.70-a-barrel margin looks like on the sign at your gas station.
By Energy News Beat | Nov. 3, 2026
If you filled up this summer and wondered where the money went, Marathon Petroleum just showed you a big piece of it. The Findlay, Ohio, company, which runs the nation’s largest refining system, reported third-quarter 2026 net income of $7.4 billion, or $26.59 a share. In the same quarter of 2025 it earned $1.4 billion, or $4.51 a share.
The engine was refining. Marathon’s refining and marketing margin, the gap between what it sold fuel for and what it paid for crude and other inputs, came in at $45.70 a barrel, up from $17.60 a year earlier. Its plants ran at 100% of crude capacity, pushing about 3.2 million barrels a day through the system. The company said results were “driven primarily by higher market crack spreads in all regions.”
What $45.70 a barrel means at the pump
A barrel holds 42 gallons. Divide $45.70 by 42 and Marathon earned about $1.09 for every gallon of crude and other feedstock its refineries processed, before operating costs, across all its products, not just gasoline. A year ago that number was about 42 cents. Today the AAA national average for regular is $4.149 a gallon. For scale, that per-gallon margin equals roughly a quarter of the pump price, though it is spread across diesel, jet fuel and other products. Diesel drivers have it worse: the EIA’s weekly survey put national diesel at $6.352 for the week of Oct. 26, against $4.269 for regular.
Marathon is not unusual here; it is riding the market. Using EIA daily spot prices for Gulf Coast gasoline, Gulf Coast diesel and WTI crude, Energy News Beat estimates the classic 3-2-1 crack spread averaged about $69.66 a barrel in the third quarter of 2026, up from $24.78 a year earlier. The diesel crack alone averaged $94.13. When the spread between crude and finished fuel blows out like that, every refiner with its units running prints money.
That $1.09 is not pure profit. Refining operating costs were $5.60 a barrel and distribution costs $5.98, which, with a few cents of other income, leaves segment adjusted EBITDA of $34.15 a barrel, or about 81 cents a gallon, before turnarounds, depreciation, interest and taxes.
Where the cash is going
Shareholders are first in line. Marathon returned $3.3 billion in the quarter, announced a 10% increase in its quarterly dividend, and its board approved an additional $5 billion share repurchase authorization. Counting what was left under earlier programs, that would have meant $8.1 billion available for buybacks as of Sept. 30.
The company is also reshaping its map. It agreed to sell its St. Paul Park refinery in Minnesota and its Mandan refinery in North Dakota, with related midstream assets, for $4.2 billion. Marathon receives $3.45 billion of the proceeds and MPLX, its pipeline partnership, receives $750 million. The release does not name the buyer. Marathon says it will put the money mostly into the Gulf Coast, and the deal is expected to close at the end of 2026.
The fine print
A few cautions before anyone extrapolates. Refining margins are among the most cyclical numbers in energy: Marathon’s own nine-month margin is $33.81, well below the third quarter’s $45.70, and last year’s third quarter was $17.60. The year-ago comparison is also a little flattering in an odd way, because the 2025 quarter included a $738 million pre-tax gain on an asset sale. Strip out one-time items and adjusted net income went from $915 million to $7.5 billion, or from $3.01 to $26.93 a share; the 2026 adjusted figure removes a $123 million pre-tax charge for tax and legal settlements. And the $4.2 billion refinery sale has not closed, so none of it is in these results; whatever gain or loss it produces will show up later as a one-time item, not as recurring earnings.
For drivers, the takeaway is simple. Crude is only part of your fuel bill. Right now, the refining margin is a big, visible slice of it, and until more refining capacity or more fuel supply shows up, that slice is what to watch.
| STU’S TAKE
Refiners make their money when crude and fuel prices pull apart, and this quarter they pulled apart hard. Marathon’s $45.70 margin is about $1.09 per gallon processed, across all its products, more than double the 42 cents of a year ago, while AAA regular sits at $4.149. I don’t begrudge a company that ran its plants at 100% when the country needed the fuel. But notice where the cash went: $3.3 billion back to shareholders in one quarter, a new $5 billion buyback authorization, and two Midwest refineries up for sale for $4.2 billion. That is not capacity being added for drivers. If we want lower pump prices, we need more refining and more supply, not just bigger buybacks. The key is how CapEx is handled in January when the big oil companies announce 2027 plans. There is millions upon millions if not billions needed in upgrades to our refinery system. In fact I almost want to break out into a Carl Sagan imitation and “Billions, and billions are needed”. We have spent decades tearing apart the refining systems, and could have had refineries that have even less pollution now, but we went all in on “Climate Fearmongering” that the UN has admitted was fake as we covered on ENB. |
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Appendix
A. Sources, with links and access dates
Marathon Petroleum Corp., “Marathon Petroleum Corp. Reports Third-Quarter 2026 Results,” PR Newswire, Nov. 3, 2026. Accessed Nov. 3, 2026. Link
Marathon Petroleum Investors page. Accessed Nov. 3, 2026; page did not return readable content to an automated fetch, so slides were not reviewed. Link
AAA Gas Prices, national average regular, price as of 11/3/26. Accessed Nov. 3, 2026. Link
EIA, U.S. No. 2 diesel retail prices, weekly, series EMD_EPD2D_PTE_NUS_DPG, release date 10/27/2026. Accessed Nov. 3, 2026. Link
EIA, U.S. regular gasoline retail prices, weekly, series EMM_EPMR_PTE_NUS_DPG, release date 10/27/2026. Accessed Nov. 3, 2026. Link
EIA, Gulf Coast ULSD spot price, daily, series EER_EPD2DXL0_PF4_RGC_DPG. Data downloaded Nov. 2, 2026. Link
EIA, Gulf Coast conventional gasoline spot price, daily, series EER_EPMRU_PF4_RGC_DPG. Data downloaded Nov. 2, 2026. Link
EIA, WTI Cushing spot price, daily, series RWTC. Data downloaded Nov. 2, 2026. Link
B. Key excerpts
“Marathon Petroleum Corp. (NYSE: MPC) today reported net income attributable to MPC of $7.4 billion, or $26.59 per diluted share, for the third quarter of 2026. This compares with a net income attributable to MPC of $1.4 billion, or $4.51 per diluted share, for the third quarter of 2025.” Link
“R&M margin was $45.70 per barrel for the third quarter of 2026, versus $17.60 per barrel for the third quarter of 2025. Crude capacity utilization was 100%, resulting in total throughput of 3.2 million barrels per day (bpd)…” Link
“Announced a 10% increase in MPC’s quarterly dividend, consistent with our capital allocation priorities” Link
“Additionally, the Board of Directors approved an incremental $5 billion share repurchase authorization. With the addition of this new authorization, the company would have had $8.1 billion available…” Link
“MPC announced the divestiture of the St. Paul Park and Mandan refineries, inclusive of related midstream assets for $4.2 billion. MPC will receive $3.45 billion of the proceeds… MPLX will receive $750 million… The transaction is expected to close at the end of 2026.” Link
C. Numbers table
Notes: The brief’s “$5B buybacks” is a new $5 billion repurchase authorization, not $5 billion repurchased; capital returned in the quarter was $3.3 billion. The release does not name the buyer of the two refineries or state the new dividend amount. Crack spreads are Energy News Beat calculations from EIA daily spot prices: diesel crack = Gulf Coast ULSD × 42 − WTI; 3-2-1 = (2 × gasoline + 1 × diesel) × 42 ÷ 3 − WTI, averaged over July 1–Sept. 30 trading days.
| Item | Figure | Source |
| Net income attributable to MPC, Q3 2026 | $7,447 million ($7.4B); $26.59/diluted share | Release |
| Net income attributable to MPC, Q3 2025 | $1,370 million ($1.4B); $4.51/diluted share | Release |
| Adjusted net income, Q3 2026 vs Q3 2025 | $7,541 million vs $915 million | Release |
| Adjusted diluted EPS, Q3 2026 vs Q3 2025 | $26.93 vs $3.01 | Release |
| Tax and legal settlements removed from Q3 2026 adjusted (pre-tax; tax impact $(29)M) | $123 million | Release |
| Gain on sale of assets in Q3 2025 (pre-tax) | $738 million | Release |
| R&M margin, Q3 2026 / Q3 2025 / 9M 2026 | $45.70 / $17.60 / $33.81 per bbl | Release |
| R&M margin per gallon processed (net refinery throughput, all products), Q3 2026 / Q3 2025 | $1.088 / $0.419 (÷42) | ENB calc |
| Other income in R&M bridge, Q3 2026 | $(0.03) per bbl (45.70 − 5.60 − 5.98 + 0.03 = 34.15) | Release |
| Refining opex; distribution costs, Q3 2026 | $5.60; $5.98 per bbl | Release |
| R&M segment adj. EBITDA per bbl / per gal | $34.15 / $0.813 | Release / ENB calc |
| Crude utilization; throughput | 100%; 3.2 million bpd | Release |
| Capital returned in Q3 2026 | $3.3 billion | Release |
| Dividend increase | 10% | Release |
| New buyback authorization; total available 9/30 | $5 billion; $8.1 billion | Release |
| Refinery sale (St. Paul Park, Mandan + midstream) | $4.2B; MPC $3.45B; MPLX $750M; close end-2026; buyer not named | Release |
| AAA national average regular, 11/3/26 | $4.1493 | AAA |
| EIA retail diesel / regular, week of 10/26/26 | $6.352 / $4.269 | EIA |
| Gulf Coast 3-2-1 crack, Q3 avg 2026 / 2025 | $69.66 / $24.78 per bbl (64 trading days each) | ENB calc from EIA spot |
| Gulf Coast diesel crack, Q3 avg 2026 / 2025 | $94.13 / $29.96 per bbl | ENB calc from EIA spot |
