Oil prices rose on Wednesday, with Brent gaining for a fifth consecutive session, as falling stockpiles and a recovery in demand encouraged investors.

Brent crude was up 69 cents, or 0.9 per cent, at $74.68 a barrel by 0200 GMT, having risen 1.6 per cent on Tuesday.

US crude gained 66 cents, or 0.9 per cent, to $72.78 a barrel, after rising 1.7 per cent in the previous session.

"Even non-energy traders are placing bets that oil prices will continue to rise," said Edward Moya, senior market analyst at OANDA.

"Everyone is turning overly bullish with crude prices. The crude demand outlook is very robust as recoveries across the US, Europe and Asia, will have demand return to pre-Covid levels in the second half of next year," Moya said.

US oil inventories dropped by 8.5 million barrels in the week ended June 11, according to two market sources, citing American Petroleum Institute figures on Tuesday.

Crude stocks were expected to have fallen for a fourth week in a row, dropping by about 3.3 million barrels last week, according to analysts polled by Reuters. Official government data is due out on Wednesday.

Executives from major oil traders said on Tuesday they expected prices to remain above $70 a barrel and demand to return to pre-pandemic levels in the second half of 2022.

Vitol Chief Executive Russell Hardy said oil is likely to trade in a range between $70 and $80 a barrel for the rest of this year on the expectation that the Organisation of the Petroleum Exporting Countries and its allies (OPEC+) will retain output restraints.

Even the return of Iranian exports if the US rejoins a nuclear agreement and lifts sanctions on Tehran is unlikely to change the bullish picture, he said.