PADD 4 diesel price (Rocky Mountain) in December 2025
5 official EIA weekly readings
- The average PADD 4 (Rocky Mountain) on-highway diesel price in December 2025 was $3.417 per gallon, calculated from 5 EIA weekly readings.
- The weekly low was $3.233; the weekly high was $3.665.
- That monthly average was $0.337 lower than November 2025.
- It was $0.054 higher than December 2024.
This is a calendar-month view of the official EIA weekly Rocky Mountain series. It averages only the source weeks listed below, not a separate government monthly estimate.
December 2025 weekly chart
Every EIA week in December 2025
| Week of | $/gal | Change |
|---|---|---|
| $3.665 | ▼−$0.058 | |
| $3.498 | ▼−$0.167 | |
| $3.385 | ▼−$0.113 | |
| $3.304 | ▼−$0.081 | |
| $3.233 | ▼−$0.071 |
← November 2025 · January 2026 → · all of 2025 · all Rocky Mountain history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.