Oil prices steadied on Wednesday, supported by a drop in U.S. commercial crude inventories and the loss of storage capacity in Libya, but under pressure ahead of a meeting of OPEC exporters which may increase global production.
Benchmark Brent crude was unchanged at $75.08 a barrel by 1037 GMT. U.S. light crude was 5 cents higher at $65.12.
U.S. crude inventories fell by 3 million barrels to 430.6 million barrels in the week to June 15, according to an American Petroleum Institute report on Tuesday.
Traders said a drop in Libyan supplies due to the collapse of an estimated 400,000-barrel storage tank also helped push up prices.
Looming large over markets, however, were meetings scheduled on June 22-23 in Vienna of the Organization of the Petroleum Exporting Countries with other big producers, including Russia.
Saudi Arabia, as well as Russia, which is not an OPEC member but is the world's biggest oil producer, are pushing to loosen supply controls introduced to prop up prices in 2017.
Other OPEC members, including Iran, oppose such a move, fearing a price slump.
"The run-up to this OPEC meeting is fraught with uncertainty with Iran from the onset adopting a very entrenched opposition to any supply increase," Harry Tchilinguirian, head of oil strategy at French bank BNP Paribas, told Reuters Global Oil Forum.
Technical analysts say prices are unpredictable:
"The market is now stuck in an OPEC-wary condition. It is likely to be thrown around by headlines and over enthusiastic participation is not advised," said Robin Bieber, director of London brokerage PVM Oil Associates.
Jack Allardyce, research analyst at Cantor Fitzgerald Europe, expects OPEC to compromise and agree a fairly modest increase of 300,000-600,000 barrels per day in production, equivalent to about 0.5 percent of world production.
"We could see this knocking $5 per barrel off Brent," Allardyce said.
Markets are also watching tension between the United States and China, with both sides threatening to impose duties on each other's exports, including U.S. crude oil.
A 25 percent tariff on U.S. crude oil imports, as threatened by China in retaliation for duties Washington has announced but not yet implemented against Chinese products, would make U.S. crude uncompetitive in China versus other supplies.
This would almost certainly lead to a sharp drop-off in Chinese purchases of U.S. crude, which have boomed in the last two years to a business now worth around $1 billion per month.
(Additional reporting by Henning Gloystein in Singapore; editing by David Evans and Jason Neely)