Investing.com - Crude oil futures fell for a seventh straight session on Monday, their longest losing streak since mid-2014, as a forecast from the International Energy Agency that the global supply glut was likely to deepen next year dragged on prices.
U.S. crude futures tumbled 2.48% to $34.72 a barrel at 12.17 GMT.
Internationally traded Brent futures were at $37.11 a barrel, down 3.13%.
Both benchmarks have fallen every day since the Organization of the Petroleum Exporting Countries on December 4 abandoned its output ceiling.
In the past six sessions, they have shed more than 13% each.
OPEC has been pumping near record levels since last year in an attempt to drive higher-cost producers such as U.S. shale firms out of the market.