Investing.com - Oil was higher Wednesday ahead of U.S. official stockpile data later in the session.
Brent crude was up 39 cents, or 0.70%, at $55.97 at 08:00 ET. U.S. crude added 31 cents, or 0.59%, to $53.12.
American Petroleum Institute API weekly figures Tuesday showed a rise of 5.8 million barrels in crude stocks in the latest week.
Energy Information Administration weekly figures are forecast to show a rise in U.S. crude inventories of 3.289 million barrels.
The market was underpinned by solid Chinese manufacturing data in January, which suggested sustained demand for oil.
Support also came from signs of strong compliance with output cuts by major producers.
OPEC and non-OPEC producers plan to cut output by some 1.8 million barrels a day in the first half of this year.
However, concerns remain about a pick-up in U.S. drilling activity, which could curtail the impact of those cuts.