PADD 3 diesel price (Gulf Coast) in August 2026
5 official EIA weekly readings
- The average PADD 3 (Gulf Coast) on-highway diesel price in August 2026 was $5.253 per gallon, calculated from 5 EIA weekly readings.
- The weekly low was $5.044; the weekly high was $5.481.
- That monthly average was $0.553 higher than July 2026.
- It was $1.876 higher than August 2025.
This is a calendar-month view of the official EIA weekly Gulf Coast series. It averages only the source weeks listed below, not a separate government monthly estimate.
August 2026 weekly chart
Every EIA week in August 2026
| Week of | $/gal | Change |
|---|---|---|
| $5.141 | ▲+$0.054 | |
| $5.044 | ▼−$0.097 | |
| $5.237 | ▲+$0.193 | |
| $5.481 | ▲+$0.244 | |
| $5.360 | ▼−$0.121 |
← July 2026 · September 2026 → · all of 2026 · all Gulf Coast history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.