West Coast gasoline inventory ·EIA week ending September 4, 2026
West Coast gasoline storage holds 27.1 M bbl as of September 4, 2026, down 0.5% week over week. It is currently drawing faster than usual.
The Desk's read
West Coast gasoline sits thin, lower than most of its 37-year record, with the district's total motor gasoline holdings at 27.1 MM bbl as of September 4. The recent draw is real: stocks fell 7.8% over 30 days, a pace among the drain-side stretches of the record. This is a lean pile getting leaner, not a full one merely emptying quickly. We track the next EIA weekly report next Wednesday; watch whether the drain continues from an already low base.
On the September 4, 2026 figures.
West Coast (PADD 5) gasoline inventory
September 17, 2021 to September 4, 2026
Shaded band: the same calendar week's range across the five prior years; dashed line: their average. The record low and high are on the range strip above, not in the band.
Weekly PADD 5 total motor gasoline stocks, in millions of barrels. Source: U.S. Energy Information Administration, Weekly Petroleum Status Report.
West Coast gasoline stocks are drawing faster than usual. We watch US gasoline inventories weekly.
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About this series
Total motor gasoline, including blending components, held in tanks and terminals across PADD 5, the West Coast district. Reported weekly by the U.S. EIA as one of five regional cuts of the national gasoline series. The West Coast is a refining island. Little pipeline capacity connects it to the rest of the country, and California's own gasoline specification is made by few refineries outside the state, so an outage shows up in PADD 5 stocks and prices rather than being papered over by supply from elsewhere.
Since 2015, today's reading ranks in the 11th percentile. West Coast gasoline stocks are running below the modern era's typical level. It is 1.7M bbl below its same-week five-year average. Across the full EIA record back to 1990 it ranks in the 12th percentile; storage capacity, pipelines, and production have shifted enough since then that the modern cohort is the better yardstick for today's operating conditions.
Weekly PADD 5 total motor gasoline stocks, in millions of barrels. Source: U.S. Energy Information Administration, Weekly Petroleum Status Report. Updated weekly. View this series at eia.gov ↗
West Coast gasoline inventory: common questions
- What is PADD 5?
- PADD 5 is the West Coast district of the Petroleum Administration for Defense Districts, the five regions the EIA uses to report US petroleum statistics. It covers Alaska, Arizona, California, Hawaii, Nevada, Oregon, and Washington. The district lines were drawn for World War II fuel allocation and remain the standard regional cut of US oil data.
- What does this page track?
- The total volume of motor gasoline held in tanks and terminals across PADD 5 (West Coast), including blending components not yet mixed into finished fuel. It is the EIA's regional cut of the same weekly series the national gasoline page tracks, and the five districts sum to the US total.
More questions
- Why do West Coast gasoline inventories matter?
- The West Coast is a refining island. Little pipeline capacity connects it to the rest of the country, and California's own gasoline specification is made by few refineries outside the state, so an outage shows up in PADD 5 stocks and prices rather than being papered over by supply from elsewhere.
- How often is this figure updated?
- The EIA publishes the figure every week, typically Wednesday around 10:30 a.m. Eastern for the prior Friday's week. This page reads that same EIA series and shows the latest reading with its as-of date.