Energy companies from Australia to China tumbled Friday as falling commodities prices stoked fears over the global outlook, with Asian stock markets tracking hefty losses in Europe and New York.
European and US shares ended deep in the red Thursday, with weak earnings reports compounding a slide in the price of oil and other commodities that suggest the world economy is struggling.

The black gold tumbled Thursday after the US Department of Energy said commercial inventories last week surged more than expected, indicating weak demand. That came after a separate report by the American Petroleum Institute Tuesday showed inventories jumped by six million barrels.

Prices have halved since peaking above $100 in June last year, hit by tepid demand in a weak global economy, and a supply glut in the face of near-record output levels.

In Asian trade US benchmark West Texas Intermediate was down five cents and Brent was unchanged. On Thursday WTI ended $1.18 a barrel down and Brent sank $1.75.

Adding to the pain is a growth slowdown in China, the world's biggest energy user, which has also impacted on other commodities such as copper and iron ore.

Among Asian energy firms, Sydney-listed miner BHP Billiton and Rio Tinto gave up almost two percent while Origin was seven percent lower.

And in Hong Kong struggling mining giant Glencore tumbled 6.7 percent by the close following a 7.6 percent slump in its London-listed shares. Sinopec's Shanghai-listed stock lost 2.1 percent while Inpex in Tokyo shed 1.8 percent.

The selling put downward pressure on stock markets across the region, with Hong Kong -- which jumped 2.4 percent Thursday -- Shanghai and Sydney worst affected. Tokyo pared some early losses but remained stuck in negative territory.

All three main indexes on Wall Street, as well as London, Paris and Frankfurt, ended sharply lower Thursday.

The dollar edged up against its major rivals after several top Federal Reserve officials cautiously hinted at a US interest rate hike at next month's policy meeting, although traders remained wary with global markets still fragile.

However, they mostly also said the central bank should be cautious, while New York Fed President William C. Dudley added that any increases should be minimal, citing still-weak rises in prices.

“After liftoff commences, I expect that the pace of tightening will be quite gradual,” he said, according to Bloomberg News.

“In part, that is because monetary policy is not as stimulative as the low level of the federal funds rate might suggest.”

Bets on a hike surged -- sending the dollar rocketing -- after data last Friday showed a better-than-forecast jump in new jobs in October and a fall in the unemployment rate to a seven-and-a-half year low.

In Europe, London dropped 0.32 percent at the open, Frankfurt slipped 0.17 percent and Paris lost 0.43 percent.

Key figures at 0830 GMT

Tokyo - Nikkei 225: DOWN 0.5 percent 19,596.91 (close)

Shanghai - composite: DOWN 1.4 percent at 3,580.84 (close)

Sydney S&P/ASX200: DOWN 1.5 percent at 5,051.30 (close)

Hong Kong - composite: DOWN 2.2 percent at 22,396.14 (close)

Euro/dollar: DOWN at $1.0773 from $1.0814 in New York

Dollar/yen: UP at 122.73 yen from 122.60 yen in New York