Diesel Prices in New Mexico Today
Average diesel price in New Mexico: $6.325 per gallon on September 22, 2026. U.S. average $6.529. Updated daily.
What is the price of diesel in New Mexico today?
Diesel in New Mexico averages $6.325 per gallon today (September 22, 2026), $0.204 less than the U.S. average of $6.529. New Mexico ranks #19 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.00 per mile on fuel in New Mexico.
per gallon today
U.S. average $6.529
of 51 (1 = cheapest)
semi truck, today
Fuel cost per mile in New Mexico
Estimated diesel cost at today's New Mexico price of $6.325 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 | $1.01 | $1,006 |
| Reefer38,000 lbs, ~6.0 mpg | $1.05 | $1,048 |
| Flatbed40,000 lbs, ~6.0 mpg | $1.05 | $1,046 |
| Hotshot12,000 lbs, ~8.9 mpg | $0.71 | $710 |
| Box Truck7,000 lbs, ~9.1 mpg | $0.69 | $693 |
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 New Mexico today?
Diesel in New Mexico averages $6.325 per gallon today (September 22, 2026), $0.204 less than the U.S. average of $6.529. New Mexico ranks #19 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.00 per mile on fuel in New Mexico.
How much does it cost to fill a semi truck in New Mexico?
At $6.33 a gallon, 150 gallons of diesel costs about $949 and 200 gallons about $1,265 in New Mexico today.
Is diesel cheaper in New Mexico than nearby states?
Among nearby states in the same region, the cheapest today is Texas at $5.965 a gallon. New Mexico is $6.325.
How often are New Mexico diesel prices updated?
Every day. This page refreshes each morning from daily state averages, with the EIA weekly survey as a backup.
| Texas | $5.965 |
| Louisiana | $6.027 |
| Mississippi | $6.058 |
| Alabama | $6.159 |
| Arkansas | $6.193 |
Source: AAA daily state average, September 22, 2026. All 50 states
Running freight through New Mexico?
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.