Diesel Prices in Oklahoma Today
Average diesel price in Oklahoma: $5.935 per gallon on October 20, 2026. EIA U.S. weekly average $6.276. Current
What is the price of diesel in Oklahoma today?
Diesel in Oklahoma averages $5.935 per gallon (AAA daily state average, October 20, 2026), $0.341 less than the U.S. average of $6.276. Oklahoma ranks #9 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $0.94 per mile on fuel in Oklahoma.
per gallon, October 20, 2026
U.S. average $6.276
of 51 (1 = cheapest)
semi truck, today price
Fuel cost per mile in Oklahoma
Estimated diesel cost at the today Oklahoma price of $5.935 a gallon, using fuel economy calibrated to FHWA and NACFE data.
| Truck | Fuel per mile | Fuel per 1,000 miles |
|---|---|---|
| Dry Van38,000 lbs, ~6.3 mpg | $0.94 | $944 |
| Reefer38,000 lbs, ~6.0 mpg | $0.98 | $983 |
| Flatbed40,000 lbs, ~6.0 mpg | $0.98 | $981 |
| Hotshot12,000 lbs, ~8.9 mpg | $0.67 | $666 |
| Box Truck7,000 lbs, ~9.1 mpg | $0.65 | $651 |
Your numbers depend on load weight, speed, terrain and idling. Enter them in the truck fuel cost calculator for an exact estimate.
Frequently asked questions
What is the price of diesel in Oklahoma today?
Diesel in Oklahoma averages $5.935 per gallon (AAA daily state average, October 20, 2026), $0.341 less than the U.S. average of $6.276. Oklahoma ranks #9 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $0.94 per mile on fuel in Oklahoma.
How much does it cost to fill a semi truck in Oklahoma?
At $5.93 a gallon, 150 gallons of diesel costs about $890 and 200 gallons about $1,187 in Oklahoma at the today average.
Is diesel cheaper in Oklahoma than nearby states?
Among nearby states in the same region, the cheapest today is Tennessee at $5.981 a gallon. Oklahoma is $5.935.
How often are Oklahoma diesel prices updated?
The page checks for new prices twice a day. AAA publishes daily state averages; the EIA weekly regional average is shown only if a state has no daily value. If a source stops updating, the last value stays with its real date and a stale label.
| Tennessee | $5.981 |
| Missouri | $6.024 |
| North Dakota | $6.065 |
| South Dakota | $6.077 |
| Kansas | $6.080 |
| Kentucky | $6.100 |
Source: AAA daily state average, October 20, 2026. All 50 states
Running freight through Oklahoma?
Texas Solutions dispatches semis for 5%, hotshots for 7% and box trucks for 8% of weekly gross. We plan lanes to cut empty miles and fuel.
Calculate your dispatch fee · Call · Text · WhatsApp · Request a callback