25.08.202621:00:00UTC+00U.S. API Crude Inventories Swing to Surprise Build of 4.2M Barrels

U.S. crude oil inventories recorded a sharp reversal in the latest weekly data, with American Petroleum Institute (API) figures showing a build of 4.200 million barrels, compared with a prior drawdown of 0.328 million barrels. The updated numbers were released on 25 August 2026.

The move from a modest decline in stocks to a sizeable increase suggests a notable shift in the near-term supply-demand balance for crude in the United States. While the previous reading pointed to slightly tighter market conditions, the latest build indicates that supply has outpaced demand or that production and imports have risen relative to refinery runs.

Traders and analysts will be watching how futures markets react to the data, as a larger-than-expected build in inventories can put downward pressure on oil prices and influence expectations for U.S. output, refinery activity, and broader energy market trends.