Dispatched Pulse · PADD 4 — Rocky Mountain
PADD 4 — Rocky Mountain diesel — week of 2026-05-18.
Rocky Mountain — Idaho, Montana, Wyoming, Colorado, Utah. Sparse refining capacity, long pipelines; prices move on West Coast supply.
Updated Mon, May 18, 2026 · Weekly · Monday · refresh delayed, retrying
PADD 4 — Rocky Mountain
$3.879
-0.032 WoW · +3.4% YoY
This week vs. last week
- This Monday
- $3.879
- Last Monday
- $3.911
- Week-over-week
- -0.032 (-0.8%)
- Year ago
- $3.752
- Year-over-year
- +3.4%
- Spread vs. U.S. national
- +0.067
9-week trend
| Week of | PADD 4 — Rocky Mountain |
|---|---|
| 2026-03-23 | $3.962 |
| 2026-03-30 | $3.949 |
| 2026-04-06 | $3.937 |
| 2026-04-13 | $3.925 |
| 2026-04-20 | $3.919 |
| 2026-04-27 | $3.915 |
| 2026-05-04 | $3.913 |
| 2026-05-11 | $3.911 |
| 2026-05-18 | $3.879 |
Source: EIA Weekly Petroleum Data. PADD-level weighting reflects EIA’s published methodology.