Investing.com - Oil was lower Friday on profit-taking as the focus turned to U.S. drilling activity figures.
U.S. crude was off 29 cents, or 0.58%, at $50.06 at 07:00 ET. Brent crude shed 33 cents, or 0.62%, to $52.80.
Baker Hughes rig count data are due out later in the session.
Higher U.S. supply and inventories are putting a cap on oil's gains.
OPEC and non-OPEC producers are cutting output by 1.8 million barrels a day in the first half.
There are expectations the accord could be extended beyond June.
Chinese manufacturing expanded at its fastest pace in close to five years, underpinning expectations of higher demand for oil.
Oil remains on track to post losses of around 7% in the first quarter.
The renewed strength of the dollar Friday weakened demand for oil.