Futures prices turned negative after weekly government data from showed lower gasoline demand from a week earlier, prompting traders to shrug off bullish U.S. crude inventory data. [EIA/S]

"The market is trying to dismiss the number as a storm-related one-off," said Phil Flynn, senior analyst at Price Futures Group in Chicago. "While the storm may have exaggerated the numbers, it doesn't justify the amount of the sell-off that we got."

Crude inventories fell by 9.4 million barrels in the last week to 498.4 million barrels, a far steeper dive than the 1.9 million-barrel drop that analysts expected in a Reuters poll. [EIA/S] The data reflects a period during which Hurricane Laura shut output and refining facilities.

Gasoline demand in the week dropped to 8.78 million barrels per day from 9.16 million bpd a week earlier, according to the report.

Brent crude, the global benchmark, fell $1.15, or 2.5%, to settle at $44.43 a barrel, after two days of price gains. U.S. West Texas Intermediate settled lower by $1.25, or 2.9%, to $41.51 a barrel.

Other data also fed fears that economic recovery from the coronavirus pandemic was lagging. U.S. private employers hired fewer workers than expected for a second straight month in August, suggesting the labor market recovery was slowing as the COVID-19 pandemic persists and government support for workers and employers dries up.

Oil has recovered from historic lows hit in April, when Brent slumped to a 21-year low below $16 and U.S. crude ended one session in negative territory.

A record supply cut by the Organization of the Petroleum Exporting Countries and allies, a grouping known as OPEC+, has supported prices.

The producers have begun to return some crude to the market as demand partially recovers and OPEC in August raised output by about 1 million barrels per day (bpd), a Reuters survey found on Tuesday. [OPEC/O]

(Additional reporting by Yuka Obayashi and Alex Lawler; editing by Louise Heavens, David Evans and David Gregorio)

By Jessica Resnick-Ault