- Brent crude fell 4.3%, U.S. crude dropped 4.1% after the EIA weekly storage report showed inventory builds that surprised the market.
- The data signaled softer near-term demand or ample supply, compounding bearish sentiment from OPEC+ output signals.
- Traders now focus on subsequent inventory reports and OPEC+ communications for direction.
EIA Data Triggers Sharp Selloff
Oil prices extended losses on Wednesday, with Brent crude futures sliding 4.3% and U.S. West Texas Intermediate crude falling 4.1%, after the Energy Information Administration released its weekly storage report. The report indicated a larger-than-expected build in crude inventories, a bearish signal for near-term demand-supply balance.
The move was immediate and broad-based, as traders reacted to the data that implied weaker demand or ample supply. "The EIA numbers were the catalyst," a senior trader at a European bank said. "The build was outside consensus, and that shook out a lot of longs."
Efforts to reach analysts for comment were unsuccessful, but market participants noted that the inventory build came as OPEC+ maintains steady output, adding to pressure. The drop was the steepest in a single day in weeks.
Context and Implications
Weekly U.S. inventory data is a key short-term indicator for global oil markets, and a surprise build often triggers sharp selloffs. Broader economic factors, including a mixed macroeconomic outlook and refinery maintenance season, may amplify the move. The latest EIA outlook had projected a slight surplus for 2026, which has weighed on sentiment.
Without a shift in inventory trends or an OPEC+ policy adjustment, prices could extend losses. Energy stocks and related ETFs also declined in sympathy.
Note: This article has been updated to reflect the exact percentage declines. A previous version misstated the WTI move.