Aug 4, 2026

DOE Diesel Up 3.5 Cents to $5.348, West-Gulf Spread at 98.9 Cents

DOE number rises 3.5 cents to $5.348/gal, now 41% above the 5-year median. Rocky Mountain leads regional gains at +3% on the week. The West-Gulf gap holds at 98.9 cents/gal.

Numbers as of Aug 4, 2026 pull

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The EIA weekly on-highway diesel survey priced Monday, August 3 at $5.348/gal, up 3.5 cents on the week and 41% above the 5-year median for this calendar week. At the stated 6.5 mpg reference, that is 82.3 cents a mile of fuel. The week's move adds about $2.69 to the fuel cost of a 500-mile haul.

Diesel fuel cost per mile (at 6.5 mpg)
cents/mile
Chart as of Aug 4, 2026. View live chart →
  • Rocky Mountain (PADD 4) diesel: $5.285/gal, up 3% week over week, the largest regional gain in this week's EIA on-highway survey. The region sits 39% above its 5-year median.
  • Lower Atlantic (PADD 1C): $5.168/gal, down 2% on the week, the only EIA survey region with a meaningful decline. It remains 38% above its 5-year median.
  • Gulf Coast (PADD 3): $5.141/gal, up 1% on the week. At 49% above its 5-year median, the Gulf Coast carries the widest vs-normal reading of any region in the EIA survey this week.
  • California reads $6.716/gal, up 1% on the week and 36% above its 5-year median. The West Coast (PADD 5) as a whole sits at $6.130/gal, paying 98.9 cents/gal over the Gulf Coast (PADD 3).

EIA's daily ULSD spot series placed New York Harbor at $4.103/gal and the Gulf Coast hub at $4.105/gal as of July 27. These are bulk, untaxed wholesale prices, not pump prices. They frame where retail came from, not what operators paid. WTI crude (Cushing spot) settled at $84.25/bbl and Brent (Europe spot) at $91.82/bbl as of the same date. Crude is roughly half the cost of a gallon at the pump, with a lag of days to weeks before a hub move reaches retail.

Data note: ULSD spot prices and crude benchmarks reflect July 27 settlement data, one week behind the Monday, August 3 retail survey.