Oil prices edged up on Thursday, clawing back some ground after losses in the previous session.
Traders said the market was range-bound as falling crude inventories provided price support while high output was capping gains.
Brent crude futures were at $50.44 per barrel at 0543 GMT, up 17 cents, or 0.3 percent, from their last close.
U.S. West Texas Intermediate (WTI) crude futures were at $46.84 a barrel, up 6 cents, or 0.1 percent.
The slight gains followed a more than 1 percent fall in the previous session.
Energy Information Administration (EIA) data on Wednesday showed that commercial U.S. crude oil stocks have fallen by almost 13 percent from their peaks in March to 466.5 million barrels. Stocks are now lower than in 2016.
"If inventory declines continue at this pace, stocks will fall back below the five-year average in around two months," said William O`Loughlin, analyst at Australia`s Rivkin Securities.
"The pace of the declines indicates that the OPEC production cuts are having an effect, although the current oil price suggests that the market is sceptical about the longer-term prospects for rebalancing of the oil market," he added.
ANZ bank said the market seemed "to focus on the rise in (U.S.) production", which jumped by 79,000 barrels per day (bpd) to 9.5 million bpd last week, its highest level since July 2015, and 12.75 percent above the most recent low in mid-2016.
The soaring U.S. output undermines efforts by the Organization of the Petroleum Exporting Countries 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.
Brent prices are down by almost 12 percent since the start of the cuts in January.
The subdued market sentiment also has roots on the demand side.
Oil producers have enjoyed years of rocketing demand, fuelled largely by China`s voracious thirst coming from over 2 million new car sales a month.
But this boom is coming to an end as its vehicle sales slow in a maturing market, and as cars become more efficient and start using alternative fuels.
"Gasoline consumption growth in China is set to see a marked slowdown over the coming years, due to macroeconomic headwinds, improving fuel economy and competition from alternative fuels," BMI Research said.
"We forecast average annual growth of 1.3 percent over 2017-2021, compared with 9.6 percent seen over 2011-2016," it added.
India, often touted as the `next China` for oil demand growth, however, only sells around 260,000 cars per month and has not seen significant sales growth in the past years.