By Reuters 05 January 2015 17:25 GMT
The sell-off in global oil markets showed little signs of slowing in the new year with US crude breaking below $50 a barrel for the first time since April 2009 on fears of a supply glut.
Benchmark Brent crude tumbled about 6%, hitting new 5-1/2 year lows after data showed Russian oil output at post-Soviet era highs and Iraqi oil exports at near 35-year peaks, Reuters reported.
US independent ConocoPhillips added to the bearish sentiment somewhat after announcing
first oil at the Eldfisk 2 platform off Norway in the North Sea.
The euro's tumble to 2006 lows and slower-than-expected growth in US manufacturing, meanwhile, weakened prospects for the global economy.
"There's no doubt that we have a combination of supplies hitting their zenith at a time when demand is weakening," said Phil Flynn, analyst at Price Futures Group in Chicago.
US crude's front-month contract was down $2.46, or 5%, at $50.23 a barrel at 11:48 a.m. in New York, having fallen to $49.95 earlier.
Front-month Brent hovered at $53 a barrel, down more than $3, after dropping to $52.66, its lowest since May 2009.
Some traders appeared certain that US crude will hit the $40 region later in the week if weekly oil inventory numbers for the US on Wednesday show another supply build, Reuters reported.
"We're headed for a four-handle," said Tariq Zahir, managing member at Tyche Capital Advisors in Laurel Hollow in New York. "Maybe not today, but I'm sure when you get the inventory numbers that come out this week, we definitely will."
Open interest for $40-$50 strike puts in US crude have risen several fold since the start of December, while $20-$30 puts for June 2015 have traded, said Stephen Schork, editor of Pennsylvania-based The Schork Report.
Russia's oil output hit a post-Soviet high last year, averaging 10.58 million barrels per day, up 0.7% thanks to small non-state producers, Energy Ministry data showed.
Iraq's oil exports were at their highest since 1980 in December, an oil ministry spokesman said, with record sales from the country's southern terminals.
The Russian and Iraqi data overshadowed reports of drops in Libya's oil output due to conflict. Libya's oil output has fallen to around 380,000 bpd after the closure of the Opec producer's biggest oil port Es Sider, along with another oil port Ras Lanuf.