Texas diesel prices today
Texas diesel prices todayDiesel averages $5.79 a gallon in Texas on 2 October 2026 — the cheapest diesel in the country, and down $0.13 on the week.
Texas against the other states
$0.57 a gallon below the unweighted mean of AAA's 51 state averages ($6.36). No state has cheaper diesel; the dearest is California at $8.38.
Regular gas in Texas is $3.94, so diesel costs $1.85 more per gallon — and more than premium at $4.82.
Tax on a gallon of diesel
$0.24 federal + $0.20 Texas · 49th highest of 51. The rest — about $5.35 — is the fuel itself, refining, distribution and the retailer’s margin.
Rates as of 1 January 2026. Local taxes, where they apply, are not included.
Diesel prices by city in Texas
AAA's diesel averages for 27 Texas metro areas, cheapest first — $0.52 a gallon between the two ends.
| Metro area | Diesel | vs state |
|---|---|---|
| McAllen, Edinburg & Mission | $5.44 | −$0.35 |
| Corpus Christi | $5.46 | −$0.33 |
| Brownsville & Harlingen | $5.55 | −$0.25 |
| Laredo | $5.63 | −$0.16 |
| Sherman & Denison | $5.65 | −$0.14 |
| Waco | $5.69 | −$0.10 |
| Killeen, Temple & Fort Hood | $5.70 | −$0.09 |
| Victoria | $5.71 | −$0.08 |
| San Antonio | $5.73 | −$0.06 |
| Dallas | $5.75 | −$0.04 |
| Fort Worth & Arlington | $5.76 | −$0.04 |
| Austin & San Marcos | $5.76 | −$0.03 |
| Midland | $5.79 | −$0.00 |
| Abilene | $5.80 | +$0.01 |
| Houston | $5.82 | +$0.02 |
| San Angelo | $5.83 | +$0.04 |
| Galveston & Texas City | $5.84 | +$0.04 |
| Odessa | $5.84 | +$0.05 |
| Beaumont & Port Arthur | $5.84 | +$0.05 |
| Tyler | $5.84 | +$0.05 |
| Wichita Falls | $5.86 | +$0.06 |
| Longview | $5.87 | +$0.08 |
| Texarkana | $5.88 | +$0.09 |
| Amarillo | $5.91 | +$0.12 |
| College Station & Bryan | $5.91 | +$0.12 |
| El Paso | $5.93 | +$0.14 |
| Lubbock | $5.96 | +$0.16 |
Show the data as a table
What a diesel fill-up costs in Texas
- Diesel car or SUV — 18 gal$104.27
- Heavy-duty pickup — 34 gal$196.96
- Box truck — 60 gal$347.58
- Semi truck, two tanks — 250 gal$1,448.25
Diesel in neighbouring states
More for Texas
Frequently asked questions
How much is diesel in Texas today?
$5.79 a gallon, AAA's Texas average for 2 October 2026 — the cheapest diesel in the country. Regular gasoline is $3.94, so diesel costs $1.85 more per gallon.
Are diesel prices going up in Texas?
Diesel is down $0.13 (2.1%) on a week ago, and up $2.57 on a year ago, when it was $3.22, on AAA's own earlier averages.
Where is diesel cheapest in Texas?
Of the 27 metro areas AAA reports in Texas, McAllen, Edinburg & Mission has the cheapest diesel at $5.44 a gallon and Lubbock the dearest at $5.96. Individual stations vary around these averages.
How much is the diesel tax in Texas?
$0.44 a gallon: $0.24 federal plus $0.20 in Texas state taxes and fees, the 49th highest of 51. The state average is $0.36. Rates as of 1 January 2026.