Crude prices rallied about 20 per cent in February, ending a losing streak lasting about eight months in which prices collapsed by 60 per cent.
But the Organisation of the Petroleum Exporting Countries (OPEC) warned that prices picked up even though there was still an oversupply of almost one million barrels a day on the market.
"ICE Brent and Nymex WTI crude oil futures defied fundamentals and moved up sharply, posting their first gains since June 2014 after seven months of a declining streak that ended with values down by almost 60 per cent," said the cartel in its report.
OPEC's assessment came after the International Energy Agency issued a similar reading on Friday.
The IEA's warning that the rebound in oil prices is built on flimsy foundations sent crude prices sliding.
Oil prices extended their losses on today, with the US benchmark West Texas Intermediate for April delivery dipping as low as USD 43.57 a barrel before recovering slightly to stand at USD 44.44, while Brent North Sea crude for April fell 79 cents to USD 53.38 a barrel in midday London trade.
