ConocoPhillips Drops 6.1% on Fed Day as Crude Retreats on Surprise Inventory Build

ConocoPhillips fell 6.1% on Wednesday, September 16, making it the worst performer among major oil names on a day when energy was the weakest sector across the entire U.S. stock market. The selloff was driven by retreating crude oil prices after an unexpected build in U.S. crude inventories sent Brent futures down to roughly $107.72 per barrel. The stock had signaled early weakness in pre-market trading, with shares sliding 0.3% alongside Chevron before the decline accelerated through the session.

The damage was concentrated in the energy patch. EOG Resources dropped 5.7% to 6%, Exxon Mobil fell 3.5%, and Chevron lost 2.9%, leaving zero of eight major energy names in positive territory by the close. The broader market backdrop added pressure: the Federal Reserve's policy decision, which markets had priced to deliver a 25-basis-point rate hike, kept the 10-year Treasury yield elevated near 5.00%, squeezing rate-sensitive and commodity-linked equities alike. Semiconductors bucked the trend, with Intel, Marvell, and Dell posting gains of 3.6% to 4.8% on the session.