Diesel Crack Hits Record $102 as Refiners Bank Record Profits

Diesel's refining margin hit an all-time high of $102.20 a barrel Monday, five times its normal level, handing Marathon Petroleum, Valero and Phillips 66 record cash flows as a supply squeeze that crude releases cannot fix.

The diesel crack spread hit an all-time high of $102.20 a barrel Monday, five times its normal level, as refinery strikes and Russia's export ban squeeze distillate supply that crude releases cannot fix. The spread, diesel futures minus West Texas Intermediate crude, traded near $100 at midday, up 2.4 percent from the prior Friday and above the roughly $97 to $98 record set in mid-March.

"What this all shows is that global oil-market tightness is manifesting itself in cracks, not crude, at least for now," said Sam Burwell, analyst at Jefferies.

WTI crude closed at $84.77 a barrel Aug. 11, well below its April 7 peak of $114.58, while Brent traded near $91. The divergence points to a refining bottleneck: Citi's Anthony Yuen flagged global diesel inventories below their five-year minimum, and Kpler data show Persian Gulf diesel exports down 80 percent year over year, nearly double the 48 percent decline in crude exports from the region. Strikes on refineries in Iran, Ukraine and Saudi Arabia's Jazan facility have knocked out processing capacity, while the U.S. Strategic Petroleum Reserve has fallen below 300 million barrels from releases that hold crude, not refined product.

The squeeze is converting into record profits for refiners with heavy diesel exposure. Marathon Petroleum's refining and marketing margin more than doubled to $36.33 a barrel in the second quarter, and Valero's roughly doubled to $23.62, with the two returning more than $5 billion to shareholders through buybacks and dividends.

Refiners Convert the Shortage Into Cash

Valero posted second-quarter net income of $3.7 billion and returned $2.6 billion to shareholders, a 59 percent payout ratio, while holding net debt-to-capitalization at 11 percent. Marathon earned $5.1 billion and returned more than $2.8 billion, finishing the quarter with $7.8 billion in cash. Phillips 66 reported $3.85 billion in net income with a refining margin of $24.08 a barrel, more than double the first quarter. Valero shares hit their highest since the company's 1980 listing, and Marathon and Phillips 66 also climbed to records.

The windfall has a shelf life. Crack spreads this extreme historically compress once refiners lift utilization or a geopolitical resolution reopens flows through the Strait of Hormuz. Valero's chief operating officer, Gary Simmons, argued the mid-cycle margin floor has shifted structurally higher on European hydroskimming economics and rising compliance costs, but "structurally higher" is not "permanently at $102." Investors chasing today's spread as a permanent trade are missing the cyclicality that has defined refining for decades.

The Fuel Squeeze Reaches the Checkout Line

Diesel moves the trucks that stock grocery shelves, the tractors that plant and harvest crops, and the ships that carry everything else. RSM chief economist Joe Brusuelas calculated that truck transportation costs correlate with diesel prices at a 0.68 coefficient, and diesel alone explains 46 percent of the variation in the producer price index for truck transportation. Producer prices were up 6 percent year over year in April while consumer prices rose 3.8 percent, a gap that takes months to reach a receipt.

Retail diesel has eased from its peak even as the refining margin sets records. The national average retail diesel price stood at $5.257 a gallon in the week ending Aug. 10, down from $5.348 the prior week and below the $5.64 mid-May peak, which was up 62 percent year over year. BofA's Francisco Blanch said diesel markets appear "poised to stay tight, volatile, and expensive well into next year" absent a supply recovery, which would push freight rates and grocery prices higher. The USDA forecasts food-at-home prices up 2.7 percent for 2026, with beef and veal up 10.7 percent on historically low cattle inventories while eggs fall 30.7 percent.

This article is for informational purposes only and does not constitute investment advice.