Asian oil prices extended losses following rise in US stockpiles

Oil prices extended losses in Asia on Thursday following a rise in US commercial crude stockpiles while traders turned cautious ahead of a crunch producers' meeting.

A warning by the Organisation of the Petroleum Exporting Countries (OPEC) that the world remains oversupplied also dampened sentiment as key producer nations prepared to gather in Doha for Sunday's talks on freezing output.

At around 0250 GMT, the US benchmark West Texas Intermediate (WTI) for delivery in May was down 47 cents, or 1.13%, at $41.29 and Brent crude for June dropped 48 cents, or 1.09%, to $43.70 a barrel.

Prices shot to 2016 highs on Tuesday on the back of news that OPEC kingpin Saudi Arabia and non-OPEC producer Russia had reached a consensus to freeze output, stoking hopes of a wider deal in Doha.

"As a lot of optimism has been priced in ahead of the freeze meeting, traders shall remain cautious to the possible 'sell on news' next week," said Margaret Yang, an analyst with the CMC Markets in Singapore.

EY oil and gas analyst Sanjeev Gupta said the "bearish" US inventory data helped push down prices as it signals weaker demand in the world's top oil consumer.

"In the meantime, China's first-quarter economic data due tomorrow (Friday) and results of the Doha meeting will set the tone for near-term price development," Gupta told AFP.

The US Energy Information Administration on Wednesday said the US commercial crude stockpiles jumped 6.6 million barrels or more than six times what analysts had expected.

OPEC, in its April report, trimmed its forecast for global oil demand growth this year and warned of possible further cuts. While expectations of an output freeze had helped prices, the group cautioned that "hurdles prevail as oversupply persists and inventories remain high".

Prices slumped by about three quarters to below $30 between mid-2014 and February this year on the back of the global supply glut and overproduction.