Updated April 29, 2026 - EIA Weekly Survey
Diesel Cost per Gallon in Oklahoma (2026)
$4.85/GAL
-0.74 vs US average ($5.59)Rank #4 of 50 statesPADD 3
Diesel Tax Breakdown
Federal diesel excise tax24.4c/gal
Oklahoma state diesel tax19.0c/gal
Total tax43.4c/gal
Tax as % of price895%
Sources: Federation of Tax Administrators, EIA. Rates as of April 2026.
CALCULATE YOUR FUEL COST IN OKLAHOMA
Use our trip calculator prefilled at $4.85/gal for Oklahoma.
Sources: EIA Weekly On-Highway Diesel Fuel Survey, AAA Gas Prices (gasprices.aaa.com), Federation of Tax Administrators diesel tax table. Updated April 29, 2026. State prices are representative averages; actual pump prices vary by retailer and location.