Oil futures pushed higher Wednesday, but traders sounded a cautious note after an industry group reported an unexpected rise in crude inventories and the Organization of the Petroleum Exporting Countries and their allies prepared to meet next week.

West Texas Intermediate crude for April delivery rose 60 cents, or 1, to 62.27 a barrel on the New York Mercantile Exchange. May Brent crude was up 73 cents, or 1.1, at 65.21 a barrel on ICE Futures Europe.

Prices continue to be supported by the global recovery trade, but the trend is showing signs of exhaustion ahead of next weeks OPEC meeting, said Craig Erlam, senior market analyst at Oanda, in a note.

Talks are likely to be tense, with Saudi Arabia likely to be more cautious about easing production curbs and Russia at the other end of the scale, he said. The prospect of a rise in U.S. shale output remains remains an everpresent risk for the group of producers and current prices may be making them nervous.

Oil has been boosted after last weeks winter storms shut in a large chunk of U.S. output and curtailed refinery activity.

The American Petroleum Institute reported late Tuesday that U.S. crude supplies rose by about 1 million barrels for the week ended Feb. 19, according to sources. The data also reportedly showed gasoline stockpiles edged up by 66,000 barrels, while distillate inventories fell by 4.5 million barrels.

More closely followed inventory data from the Energy Information Administration will be released…