Rocky Mountain distillate inventory ·EIA week ending September 4, 2026
Rocky Mountain distillate storage holds 3.5 M bbl as of September 4, 2026, up 0.2% week over week.
Rocky Mountain (PADD 4) distillate 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 4 distillate fuel oil stocks, in millions of barrels. Source: U.S. Energy Information Administration, Weekly Petroleum Status Report.
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About this series
Distillate fuel oil, the category covering diesel and heating oil, held in tanks and terminals across PADD 4, the Rocky Mountain district. Reported weekly by the U.S. EIA as one of five regional cuts of the national distillate series. PADD 4 holds the smallest distillate cushion of the five districts, supplying mining, ranching, and long-haul trucking across the mountain states from a handful of refineries. Thin regional stocks mean local prices react quickly when supply tightens.
Since 2015, today's reading ranks in the 20th percentile. Rocky Mountain distillate stocks are running below the modern era's typical level. It is 0.1M bbl below its same-week five-year average. Across the full EIA record back to 1990 it ranks in the 67th 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 4 distillate fuel oil stocks, in millions of barrels. Source: U.S. Energy Information Administration, Weekly Petroleum Status Report. Updated weekly. View this series at eia.gov ↗
Rocky Mountain distillate inventory: common questions
- What is PADD 4?
- PADD 4 is the Rocky Mountain district of the Petroleum Administration for Defense Districts, the five regions the EIA uses to report US petroleum statistics. It covers Colorado, Idaho, Montana, Utah, and Wyoming. 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 distillate fuel oil, covering diesel and heating oil, held in tanks and terminals across PADD 4 (Rocky Mountain). It is the EIA's regional cut of the same weekly series the national distillate page tracks, and the five districts sum to the US total.
More questions
- Why do Rocky Mountain distillate inventories matter?
- PADD 4 holds the smallest distillate cushion of the five districts, supplying mining, ranching, and long-haul trucking across the mountain states from a handful of refineries. Thin regional stocks mean local prices react quickly when supply tightens.
- 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.