Investing.com - Oil was higher Tuesday aided by the pullback in the dollar as the market looked to industry data on U.S. stockpiles.
U.S. crude was up 49 cents, or 1.03%, at $48.22 at 08:00 ET. Brent crude gained 51 cents, or 1.00%, to $51.41.
American Petroleum Institute weekly data on U.S. stockpiles are due out later in the session.
These will be followed Wednesday by official Energy Information Administration (EIA) inventories.
The EIA is forecast to report an increase in U.S. crude stocks of 1.183 million barrels in the latest week.
Higher U.S. supply and inventories continue to overhang the market.
That is undermining the impact of agreed production cuts by major producers.
OPEC and non-OPEC producers are implementing output cuts of 1.8 million barrels a day in the first half.
The adherents to the accord are reviewing the need for it to be extended beyond June to re-balance the market.
A weaker dollar underpins demand for oil.