FuelCastWill diesel prices go up next week in Rocky Mountain?
Diesel prices in Rocky Mountain are showing no clear direction in the week to Monday, October 19. The current average is $6.302 per gallon (EIA, week of Oct 12, 2026).
Running a truck or a fleet, the timing of a fill-up matters: fill up right before a jump and every tank costs more. Here is where diesel in Rocky Mountain stands and which way it is heading next week.
Diesel prices in Rocky Mountain this week
| Fuel | Average price | Change vs last week | Next week |
|---|---|---|---|
| Diesel | $6.302/gal week of Oct 12, 2026 | +3.5¢ | No clear direction yet |
| Regular gasoline | $4.439/gal week of Oct 12, 2026 | +2.2¢ | Likely to fall (weaker signal here) |
Weekly averages are published by the EIA, usually on Mondays. The next one is due Monday, October 19.
Know before you fill up
FuelCast shows whether prices near you are likely to rise or fall, the cheapest stations around you and the best day to fill up, with an alert when it matters.
Download FuelCast on the App StoreDiesel price outlook by area
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Questions
Will diesel prices go up next week in Rocky Mountain?
Diesel prices in Rocky Mountain are showing no clear direction in the week to Monday, October 19.
What is the average diesel price in Rocky Mountain right now?
$6.302 per gallon in the EIA weekly survey for the week of Oct 12, 2026.
When are new diesel price averages published?
The U.S. Energy Information Administration publishes weekly retail averages, usually on Monday afternoons. FuelCast updates its outlook after each release.
Source: U.S. Energy Information Administration (EIA), Weekly Retail Gasoline and Diesel Prices · Public domain (U.S. Government work)