Spreads
West Coast except California (PADD 5) vs the US average
+27.3 cents/gal vs the US average for the week of Aug 31, 2026. Positive means PADD 5 Except California pays over the national number.
Data through Aug 31, 2026 · source last checked Sep 1, 2026 · page revised Sep 1, 2026
Cite
- Spread
About this data
- Source
- Derived from EIA weekly on-highway diesel survey
- Series
- West Coast except California (PADD 5) vs the US average
- Basis
- Region pump price minus the US average
- Unit
- cents/gal
- Calculation
- Weekly (survey week)
- Last observation
- Aug 31, 2026
- Update frequency
- Weekly
PADD 5 Except California pays 27.3 cents/gal over the US average this week. The gap is 6.6 cents wider than a week ago.
PADD 5 Except California paid 27.3 cents/gal over the US average for the week of Aug 31, 6.6 cents wider than a week ago. The premium was 37.8 cents/gal a year ago.
| Period | Gap | Week of |
|---|---|---|
| This week | +27.3 cents/gal | Aug 31, 2026 |
| A week ago | +20.7 cents/gal | Aug 24, 2026 |
| 4 weeks ago | +27.5 cents/gal | Aug 3, 2026 |
| A year ago | +37.8 cents/gal | Sep 1, 2025 |
Previous weeks
Week of Aug 24, 2026
The West Coast except California pays 20.7 cents/gal over the US average, down 3.8 cents from a week ago. The spread sits substantially narrower than a year ago, when PADD 5 except California commanded a premium of 39.5 cents/gal.
An earlier week
West Coast except California pays 24.5 cents/gal over the US average this week. The gap narrowed 2.4 cents from a week ago. Year over year, the premium sits 13.6 cents lower.
Week of Aug 18, 2026
West Coast except California paid 26.9 cents/gal over the US average this week, down 0.6 cents from a week ago. The regional premium has compressed sharply year over year, at 12.5 cents below last August's 39.4-cent spread.