US refiners surge 80% as crack spread hits record $62 a barrel

The WTI 3-2-1 crack spread has nearly tripled since January, pushing US refiner stocks up more than 80% while the broader market gained just 11%.

The US Gulf Coast 3:2:1 crack spread — the industry's primary measure of refining profitability — surged to a record $62 a barrel in July, nearly tripling from around $20 at the start of 2026 and far exceeding the 2022 bonanza when the spread averaged less than $40. The metric estimates the gross margin a refinery earns by converting three barrels of crude into two barrels of gasoline and one barrel of distillate fuel.

"The magnitude of this margin expansion is unprecedented in modern refining history," said Spencer Jakab, markets columnist at the Wall Street Journal. "Refiners that were shunned by investors are now minting money."

The rally has been driven by a severe supply crunch on the product side. Global refining capacity has lost about 5 million barrels a day — roughly 5 percent of total supply — according to analysts at Citigroup. Attacks in the Strait of Hormuz have disrupted massive facilities on the Persian Gulf, Ukrainian drone strikes have damaged several Russian refineries, and China has curtailed refined-product exports for much of the period since the war began. The US has not built a large refinery in nearly half a century, leaving domestic operators running near maximum utilization well ahead of summer-driving season.

The result has been extraordinary stock performance for the sector's biggest players. Marathon Petroleum, Valero Energy, and HF Sinclair have each gained more than 80 percent year to date, while Phillips 66 has climbed over 54 percent. By comparison, the S&P 500 has risen roughly 11 percent. Earnings-per-share forecasts for 2026 have tripled for Valero and Marathon and doubled for Phillips 66 since last summer, according to consensus estimates.

Why crude prices alone don't tell the story

Falling crude prices do not automatically hurt refiners — and in some cases, they boost profitability. When crude costs decline but gasoline and diesel remain expensive due to supply constraints, the crack spread widens. That dynamic has played out repeatedly in 2026. WTI crude pulled back after a brief truce between the US and Iran — an agreement President Donald Trump recently declared was "over" — yet fuel prices stayed elevated because product inventories remain depleted and damaged refineries have not returned online.

Each refiner brings its own advantages. Marathon Petroleum generates substantial cash flow through its large refining network and MPLX midstream partnership. Valero operates as one of North America's lowest-cost producers. Phillips 66 offers additional exposure through chemicals and midstream assets. Yet all share the same tailwind: crack spreads well above historical norms.

How long can margins hold?

History suggests today's profitability is unlikely to persist. Refinery margins tend to normalize as fuel supplies recover, utilization rates adjust, or crude prices rebound faster than product prices. The last time margins reached extreme levels — during the 2022 post-Covid demand surge — the spread averaged less than $40, well below current levels. With inventories depleted and some refineries damaged, prices may need to stay high enough to curtail demand to balance the market, according to Citigroup.

For investors, the key metric to watch is not the daily price of crude but the crack spread itself. As long as the WTI 3-2-1 spread remains above $40 — more than double its typical range — US refiners should continue generating robust cash flow and returning capital to shareholders through buybacks and dividends. The easy money may already have been made given the 55 percent to 85 percent year-to-date gains, but the margin story is far from over.

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