The U.S. Energy Information Administration reported a weekly injection of 64 billion cubic feet (Bcf) into Lower 48 natural gas storage inventories for the week ending September 25, 2026 (Link). Total inventories now stand at 3,415 Bcf, 138 Bcf (3.9%) below year-ago levels and 79 Bcf (2.4%) above the 2021-2025 average for the same week.
The 64-Bcf injection announced this morning by the EIA marked the largest weekly build since late June and broke a streak of seven consecutive builds that fell short of the same week in 2025. Despite slightly narrowing the deficit to year-ago levels, the data showed another erosion of the surplus to the five-year average. Stocks are now just 79 Bcf ahead of that benchmark following seven straight weeks of lighter-than-average injections. This is the slimmest surplus since early April.
