US benchmark West Texas Intermediate (WTI) for delivery in April shed USD 1.24 to USD 43.42 a barrel.
Brent North Sea crude for May delivery tumbled USD 1.69 to stand at USD 54.22 in late London deals.
WTI had gained USD 1.20 yesterday and Brent jumped USD 2.40 after the US central bank signalled it was in no hurry raise rates, which sent the dollar tumbling.
A weaker US currency makes dollar-priced oil cheaper for holders of rival currencies, fuelling demand. The dollar rallied today, causing the reverse.
The US Department of Energy yesterday said crude stocks jumped 9.6 million barrels for the week ending March 13.
"The report indicates a build up in the global supply glut that has been pushing prices down thus far," said Shailaja Nair, associate editorial director at energy information provider Platts.
Daniel Ang, an investment analyst with Phillip Futures in Singapore, said prices would remain under pressure for as long as supply was outpacing demand.
"Fundamentals have not changed and just a short-term jolt in prices from the weakening US dollar will not change that fact," he said in a market commentary.
World oil prices have collapsed by about 60 per cent since June, with the strong US production exacerbating elevated output by the OPEC cartel.
OPEC members meanwhile have no choice but to maintain current production levels despite falling oil prices in order to preserve their market share, Kuwait's oil minister said today.
"Within OPEC, we don't have any other choice than keeping the ceiling of production as it is because we don't want to lose our share in the market," Ali al-Omair told reporters.
But the minister welcomed any arrangements with non-OPEC crude producers to stabilise the market.
