Diesel Prices in Texas Today
Average diesel price in Texas: $5.965 per gallon on September 22, 2026. U.S. average $6.529. Updated daily.
What is the price of diesel in Texas today?
Diesel in Texas averages $5.965 per gallon today (September 22, 2026), $0.564 less than the U.S. average of $6.529. Texas ranks #1 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $0.95 per mile on fuel in Texas.
per gallon today
U.S. average $6.529
of 51 (1 = cheapest)
semi truck, today
Fuel cost per mile in Texas
Estimated diesel cost at today's Texas price of $5.965 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 | $0.95 | $949 |
| Reefer38,000 lbs, ~6.0 mpg | $0.99 | $988 |
| Flatbed40,000 lbs, ~6.0 mpg | $0.99 | $986 |
| Hotshot12,000 lbs, ~8.9 mpg | $0.67 | $670 |
| Box Truck7,000 lbs, ~9.1 mpg | $0.65 | $654 |
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 Texas today?
Diesel in Texas averages $5.965 per gallon today (September 22, 2026), $0.564 less than the U.S. average of $6.529. Texas ranks #1 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $0.95 per mile on fuel in Texas.
How much does it cost to fill a semi truck in Texas?
At $5.96 a gallon, 150 gallons of diesel costs about $895 and 200 gallons about $1,193 in Texas today.
Is diesel cheaper in Texas than nearby states?
Among nearby states in the same region, the cheapest today is Louisiana at $6.027 a gallon. Texas is $5.965.
How often are Texas diesel prices updated?
Every day. This page refreshes each morning from daily state averages, with the EIA weekly survey as a backup.
| Louisiana | $6.027 |
| Mississippi | $6.058 |
| Alabama | $6.159 |
| Arkansas | $6.193 |
| New Mexico | $6.325 |
Source: AAA daily state average, September 22, 2026. All 50 states
Running freight through Texas?
Texas Solutions dispatches semis for 5%, hotshots for 8% and box trucks for 10% of weekly gross. We plan lanes to cut empty miles and fuel.