Saudi Arabia ready to step up oil production to counter price spike The Commodity Futures Trading Commission is seeking more information about the tumble that occurred late on Monday. The price of a barrel of West Texas Intermediate crude oil for October delivery fell from more than $98 to $94.83 in seconds. "Superfast price moves, like we saw in oil, put us on high alert," said Bart Chilton, a commissioner at the CFTC. Traders speculated the fall may have been caused by a so-called "fat finger" trade or related to the expiry of options to buy the October contract. Brent crude slipped $1.76 to $112.03 a barrel on Tuesday.