The EIA reported that total U.S. propane/propylene inventories increased by 3.1 MMbbl for the week ended September 4, exceeding the industry-expected build of 920 Mbbl and the average build of 1.9 MMbbl for the week. The increase lifted stocks to an all-time high of 110.5 MMbbl (red line in the chart below). Stocks are 12.8 MMbbl, or 13%, above the same week in 2025 (blue line); 11.4 MMbbl, or 11.5%, above the five-year maximum; and 22.2 MMbbl, or 25%, above the five-year average (green line). Inventories remain on track to approach 119 MMbbl by early October before seasonal draws begin. That would be approximately 13% above the 2025 high of 105.4 MMbbl recorded in November 2025.
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- Analyst Insight
Gulf Coast Build Lifts U.S. Propane Stocks to New Record
U.S. propane inventories climbed to a second consecutive record as Gulf Coast and Midwest stocks accounted for approximately 92% of the weekly build. If inventories continue building at a similar pace, total stocks could approach 119 MMbbl by early October.
- Analyst Insight
Midwest Leads the Charge as U.S. Propane Stocks Reach Record High
U.S. propane inventories reached an all-time high as the Midwest led the weekly build and Gulf Coast stocks set a regional record.
- Analyst Insight
U.S. Propane Stocks Climb as East Coast Leads the Build
U.S. propane inventories rose more than expected, reaching their highest level since last fall and climbing 30% above the five-year average. The East Coast drove this week’s build, while the Gulf Coast remained the foundation of the country’s elevated inventory position.
