US crude shed 55 cents to $38.89 a barrel, while Brent was down 33 cents at $40.87
Oil producers including Gulf OPEC members support holding talks next month on a deal to keep production at current levels
US crude futures were 17 cents higher at $37.35 a barrel
US crude was down $1.65, or 4.3 per cent, at $36.85 a barrel by 12:18 pm EDT (1618 GMT)
US crude futures were trading at $38.41 per barrel
IEA said it believed non-OPEC output would fall by 750,000 barrels per day (bpd) in 2016
Analysts warned that any price rally was pre-mature as a global glut remained in place
EY oil and gas analyst Sanjeev Gupta said the market it looking forward to a March 20 meeting of major crude producers
But a slowing China economy raises concerns of stalling demand; crude oil may have bottomed but full recovery not seen before 2017
Brent was down 2.9% at $39.65, while US crude closed down 3.7% at $36.50
Front-month Brent crude futures were trading at $39.42 per barrel, up 1.8%
Traders said that a market rout that has pulled down prices by 70% since mid-2014 is over
Brent was trading at $36.54 a barrel, while WTI was down 66 cents at $33.74
London Brent was trading at $36.73, while the NYMEX was down 34 cents at $34.06 a barrel
Benchmark Brent crude futures were up 34 cents at $36.91 a barrel
Weak economic data out of China and the prospect of slowing oil demand growth prevented more price rises
Prices remained unstable on weak Chinese manufacturing data and a hint that oil producers could cooperate to stabilise market
China's PMI stood at 49.0, shrinking more than expected in February
Analysts said after a 20-month rout prices fall by 70%
Prices jumped yesterday after Venezuela said it was preparing to meet with other producers in March to discuss ways to stabilise the market