In a choppy trading session, Brent crude was down 17 cents, or 0.3%, at $60.53 a barrel by 0639 GMT, while West Texas Intermediate (WTI) was down 25 cents, or 0.4%, at $56.01 a barrel.

Crude, which surged more than 4% in the previous session after strong data from China, opened lower after data late on Wednesday from the American Petroleum Institute (API) showed U.S. crude stocks rose last week, against expectations.

Prices rebounded to rise nearly 1% after news that the United States and China agreed to hold ministerial-level trade talks in Washington in early October, before easing back.

"It's a real arm wrestle and that's evidenced in the volumes," said Michael McCarthy, chief market strategist at CMC Markets in Sydney. Brent trading volumes were double the average, while WTI were about 30% higher for the usually quiet Asian trading day, he said.

Profit taking after the strong gains overnight had run into news of the U.S.-China trade talks, he said.

In Beijing, China's commerce ministry said the talks would be held and "both sides agreed that they should work together and take practical actions to create good conditions for consultations."

Still evidence has been mounting that economies worldwide are being hit by the trade war, prompting downgrades of oil demand growth expectations.

"The overall picture still hasn't changed. We haven't made any steps to a real agreement," McCarthy said.

Underlining concerns about growth, BP Plc's Chief Financial Officer Brian Gilvary told Reuters on Wednesday that global oil demand is expected to grow by less than 1 million barrels per day in 2019 as consumption slows.

Crude inventories in the United States rose by 401,000 barrels in the week ended Aug. 30 to 429.1 million, compared with analysts' expectations for a decrease of 2.5 million barrels.

Crude stocks at the Cushing, Oklahoma, delivery hub fell by 238,000 barrels, while refinery crude runs fell by 306,000 barrels per day, API said.