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SINGAPORE, Aug 18 (Reuters) - Oil prices fell early on Friday as part of a broad-based selloff across markets and despite signs that crude markets are gradually tightening.
Brent crude futures, the international benchmark for oil prices, were at $50.93 per barrel at 0031 GMT, down 10 cents, or 0.2 percent, from their last close.
U.S. West Texas Intermediate (WTI) crude futures were at $47.02 a barrel, down 7 cents, or 0.2 percent.
Oil traders said the crude falls came amid a selloff across many other markets, including U.S. and Asian stocks, where investors voted with their feet amid growing skepticism U.S. President Donald Trump, embroiled in controversy, would achieve his economic agenda.
The falls came despite signs, especially in the United States, that crude markets were gradually tightening.
Despite a 13 percent jump in production <C-OUT-T-EIA> since mid-2016 to 9.5 million barrels per day (bpd), the country's commercial crude inventories <C-STK-T-EIA> have fallen 13 percent from their March records to below 2016 levels.
"EIA data showed that stockpiles fell by 8.95 million barrels to 466.5 million barrels last week. This was the biggest weekly fall since September," ANZ bank said on Friday.
Going forward, much will depend on output levels from the Organization of the Petroleum Exporting Countries (OPEC) which, together with non-OPEC producers like Russia, has pledged to restrict output by 1.8 million barrels per day (bpd) between January this year and March 2018 to tighten the market and prop up prices.
So far, OPEC and Russian output remains high as some members who have pledged to cut are not complying with their targets.
(Reporting by Henning Gloystein; Editing by Richard Pullin)