# West Coast vs Gulf Coast +113.7 cents/gal for the week of Aug 31, 2026. PADD 5 pump price minus PADD 3, the widest structural gap on the diesel map. _Data through Aug 31, 2026 · source last checked Sep 1, 2026 · page revised Sep 1, 2026_ > The West Coast (PADD 5) pays 113.7 cents/gal over the Gulf Coast (PADD 3) this week. The gap is 21.1 cents wider than a week ago. The West Coast paid 113.7 cents/gal over the Gulf Coast for the week of Aug 31, 2026, the widest structural gap on the diesel map. The spread widened 21.1 cents from a week ago. ## The numbers | Period | Gap | Week of | | --- | --- | --- | | This week | +113.7 cents/gal | Aug 31, 2026 | | A week ago | +92.6 cents/gal | Aug 24, 2026 | | 4 weeks ago | +98.9 cents/gal | Aug 3, 2026 | | A year ago | +111.7 cents/gal | Sep 1, 2025 | ## About this data - Source: Derived from EIA weekly on-highway diesel survey - Series: West Coast vs Gulf Coast - Basis: Region pump price minus the US average - Unit: cents/gal - Calculation period: Weekly (survey week) - Last observation: Aug 31, 2026 - Update frequency: Weekly --- Cite: West Coast vs Gulf Coast: +113.7 cents/gal for the week of Aug 31, 2026. Monday Diesel. https://mondaydiesel.com/spreads/west-vs-gulf Canonical URL: https://mondaydiesel.com/spreads/west-vs-gulf