PADD 3 diesel price (Gulf Coast) in September 2026
2 official EIA weekly readings available so far
- The average PADD 3 (Gulf Coast) on-highway diesel price in September 2026 was $5.890 per gallon, calculated from 2 EIA weekly readings available so far.
- The weekly low was $5.754; the weekly high was $6.027.
- That monthly average was $0.637 higher than August 2026.
- It was $2.495 higher than September 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.
September 2026 weekly chart
Every EIA week in September 2026
| Week of | $/gal | Change |
|---|---|---|
| $5.754 | ▲+$0.394 | |
| $6.027 | ▲+$0.273 |
← August 2026 · all of 2026 · all Gulf Coast history · monthly CSV
Download the underlying weekly EIA series or see the methodology and source cross-check.