Rocky Mountain (PADD 4) Diesel Price
Latest verified average · week of 2026-10-19
$6.422/gal
▲ +$0.120 vs previous survey
Rocky Mountain — the thinnest, most volatile regional market. See EIA's PADD region map for how these regions are defined.
52-week history
| Date | $/gal |
|---|---|
| 2026-10-19 | $6.422 |
| 2026-10-12 | $6.302 |
| 2026-10-05 | $6.267 |
| 2026-09-28 | $6.407 |
| 2026-09-21 | $6.340 |
| 2026-09-14 | $6.066 |
| 2026-09-07 | $5.805 |
| 2026-08-31 | $5.555 |
| 2026-08-24 | $5.537 |
| 2026-08-17 | $5.427 |
| 2026-08-10 | $5.271 |
| 2026-08-03 | $5.285 |
| 2026-07-27 | $5.141 |
| 2026-07-20 | $4.935 |
| 2026-07-13 | $4.600 |
| 2026-07-06 | $4.484 |
| 2026-06-29 | $4.602 |
| 2026-06-22 | $4.795 |
| 2026-06-15 | $5.019 |
| 2026-06-08 | $5.200 |
| 2026-06-01 | $5.331 |
| 2026-05-25 | $5.493 |
| 2026-05-18 | $5.549 |
| 2026-05-11 | $5.491 |
| 2026-05-04 | $5.517 |
| 2026-04-27 | $5.270 |
| 2026-04-20 | $5.213 |
| 2026-04-13 | $5.256 |
| 2026-04-06 | $5.412 |
| 2026-03-30 | $5.270 |
| 2026-03-23 | $5.174 |
| 2026-03-16 | $4.796 |
| 2026-03-09 | $4.397 |
| 2026-03-02 | $3.737 |
| 2026-02-23 | $3.683 |
| 2026-02-16 | $3.607 |
| 2026-02-09 | $3.539 |
| 2026-02-02 | $3.419 |
| 2026-01-26 | $3.367 |
| 2026-01-19 | $3.246 |
| 2026-01-12 | $3.185 |
| 2026-01-05 | $3.222 |
| 2025-12-29 | $3.233 |
| 2025-12-22 | $3.304 |
| 2025-12-15 | $3.385 |
| 2025-12-08 | $3.498 |
| 2025-12-01 | $3.665 |
| 2025-11-24 | $3.723 |
| 2025-11-17 | $3.813 |
| 2025-11-10 | $3.803 |
| 2025-11-03 | $3.676 |
| 2025-10-27 | $3.686 |
Other regions
Prices moved? Update your fuel surcharge → · Trip fuel cost calculator
FAQ
Why do diesel prices differ by region?
Three things drive most of the gap: state and local fuel taxes vary widely from state to state; how close a market sits to pipelines and refineries changes how far diesel has to travel to reach the pump, which is why the landlocked Rocky Mountain region swings the most from week to week; and California requires a separate, cleaner-burning CARB diesel blend that costs more to refine, which is usually why the West Coast prices highest.
When does this page update?
EIA normally publishes Monday prices on Tuesday around 10am ET; Monday federal holidays move publication to Wednesday. We check for updates Tuesday through Thursday and publish new or revised data after validation. While a release is unavailable or validation fails, this page keeps the latest verified EIA average for the week of 2026-10-19.
Is this the retail price or the wholesale (rack) price?
This is the retail price — the pump average including taxes, what a driver actually pays swiping a card at the island. Rack (wholesale) price is a separate, lower number that fleets with fuel contracts negotiate their discounts around.
Survey week of: 2026-10-19 · Source: EIA weekly diesel