EIA Crude Oil Stocks Surprise Market with Large Build

The US Energy Information Administration (EIA) reported a surprise build in crude oil stocks on September 18, contrary to market expectations. The figure of 2.969M was significantly higher than the predicted draw of -0.6M, and also exceeded the previous week's level of -0.64M.

This unexpected development has caught the attention of traders, who are now reevaluating their positions in front-month WTI and nearby spreads. According to Newsquawk Staff, 'A build of this size against consensus for a draw is a genuine surprise, not noise: EIA prints of this magnitude off consensus have historically been the ones that move front-month WTI and the nearby spreads rather than the long end of the curve.'

The market's reaction will likely depend on the subsequent components of the report, including refinery runs, imports, and sub-prints for Cushing and distillate. Historically, surprises driven by import swings or refinery outages have tended to reverse within the session, while those reflecting weak runs or persistent supply have established a trend across subsequent weekly prints.

The EIA's data is closely watched by traders, who use it to inform their investment decisions. A single bearish print against the seasonal pattern has usually been treated as suspect until corroborated, with the API reading the prior evening and the following week's EIA serving as natural tells.