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Marathon Petroleum Corp

MPCNYSEPetroleum RefiningFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026Score 16/3013% above fair value
$430.39−14.34 (-3.22%)

Close on Nov 2, 2026Market cap $120.86BP/E 14.8Yield 0.87%

Marathon Petroleum West Coast ANS 3-2-1 crack spread by Month

West Coast ANS 3-2-1 crack spread (ex-RIN, $/bbl) ($)

QuarterlyAnnualMonthly

Marathon Petroleum West Coast ANS 3-2-1 crack spread: $68.63 in Sep 2026, up 124.0% from a year earlier. That is the highest of the 45 months on record here.

Latest, Sep 2026
68.63
Period ended Sep 28, 2026
Change on a year earlier
+124.0%
30.64 in Sep 2025
History
45 months
Since Jan 2023
Sources
3
Documents cited below

Where the Sep 2026 figure comes from

“Market-Data-Summary-at-9-30-2026.xlsx (Historical) | 2026-09 | West Coast ANS 3-2-1 crack spread (ex-RIN, $/bbl): 68.63”

Source: MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗

Monthly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedWest Coast ANS 3-2-1 crack spread (ex-RIN, $/bbl) ($)Year on yearSource
Sep 2026Sep 28, 202668.63+124.0%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Aug 2026Aug 28, 202657.89+150.2%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Jul 2026Jul 28, 202660.57+209.7%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Jun 2026Jun 28, 202636.26+91.0%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
May 2026May 28, 202641.39+64.6%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Apr 2026Apr 28, 202641.98+83.7%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Mar 2026Mar 28, 202641.28+116.8%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Feb 2026Feb 28, 202622.93+3.1%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Jan 2026Jan 28, 202615.69+6.2%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Dec 2025Dec 28, 202512.79+16.9%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Nov 2025Nov 28, 202529.76+113.3%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Oct 2025Oct 28, 202527.25+77.8%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Sep 2025Sep 28, 202530.64+67.7%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Aug 2025Aug 28, 202523.14+48.0%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Jul 2025Jul 28, 202519.56+60.6%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗
Jun 2025Jun 28, 202518.98+25.7%MPC Refining & Marketing Market Data Summary (Market-Data-Summary-at-9-30-2026.xlsx) ↗

Cite this data

StockData. (2026). Marathon Petroleum West Coast ANS 3-2-1 crack spread ($), monthly Jan 2023–Sep 2026 [Data set]. Compiled from Marathon Petroleum SEC filings and investor materials. https://stockdatahq.com/stocks/mpc/kpis/mkt-crack-wc

See every metric in the Marathon Petroleum KPI table. Data updated Oct 27, 2026.