Brent crude was down 37 cents, or 0.5%, at $67.63 a barrel by 0535 GMT after dropping 0.6% on Wednesday.
Oil prices dropped for a fifth straight day on Thursday after official data showed a sustained rise in U.S. crude and fuel inventories, while the ever-present pandemic clouded the demand outlook.
Brent crude was down 37 cents, or 0.5%, at $67.63 a barrel by 0535 GMT after dropping 0.6% on Wednesday. U.S. oil was also down 32 cents, or 0.5%, at $64.28 a barrel, having fallen 0.3% the previous session, as reported by Reuters.
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U.S. crude inventories increased by 2.4 million barrels last week, the U.S. Energy Information Administration (EIA) said on Wednesday. That was a day after the American Petroleum Institute (API) on Tuesday estimated a 1 million barrel-decline.
Stocks of gasoline and diesel increased against expectations among analysts for a decline.