* OPEC members to hold informal talks at 1400GMT

* Meeting could lay foundation for output agreement in Nov -NAB

* Market focused on EIA stocks data later on Wednesday

(Updates prices)

By Keith Wallis

SINGAPORE, Sept 28 (Reuters) - Oil prices rose in mixed trading on Wednesday, after sharp losses in the previous session, as industry data showed a surprise draw in U.S. crude stocks, although worries over a lack of agreement among producers to curb output kept a lid on gains.

Brent crude LCOc1 rose 12 cents to $46.09 a barrel as of 0639 GMT after settling down $1.38, or 2.9 percent, in the previous session.

U.S. West Texas Intermediate (WTI) crude CLc1 was up 5 cents at $44.72 a barrel after climbing as high as $45.09 in earlier trading. The benchmark ended down $1.26, or 2.7 percent, in the previous session.

Members of the Organization of the Petroleum Exporting Countries (OPEC) will hold informal talks at 1400 GMT on Wednesday. Its members are also meeting non-OPEC producers on the sidelines of the three-day International Energy Forum being held in Algiers and which ends on Wednesday.

Crude futures fell on Tuesday after Iran rejected an offer from Saudi Arabia to limit its oil output in exchange for Riyadh cutting supply, dashing market hopes the two major OPEC producers would find a compromise this week to help ease a global glut of crude. urn:newsml:reuters.com:*:nL8N1C31CN urn:newsml:reuters.com:*:nL8N1C35GB

The market is coming to think this week's discussions could provide the groundwork for an agreement at OPEC's formal policy meeting set for Nov. 30 in Vienna, said Vyanne Lai, oil analyst at National Australia Bank in Melbourne.

"I think OPEC producers realise they can't continue to expand production indefinitely - OPEC producers are close to maximum capacity - so there could be room for a deal (in November)," Lai said.

An agreement in November could provide a short-term boost to prices, Lai said, although the level of support would depend at what level output is curbed, Lai said.

"Our expectation is prices will be relatively range-bound at slightly below $50," Lai said.

Investors had largely priced in the likely lack of a deal among oil producers in Algiers and were focused on official U.S. oil stocks data from the U.S. Department of Energy's Energy Information Administration (EIA) to be released later in the day, Lai said. EIA/S

"Prices could draw support from U.S. inventory data. Prices could track higher but below the levels of yesterday," Lai said.

Data from industry group the American Petroleum Institute showed crude stocks fell 752,000 barrels in the week ended Sept. 23 to 506.4 million barrels. Analysts polled by Reuters were forecasting a 2.8 million-barrel build. API/S

(Reporting by Keith Wallis; Editing by Christian Schmollinger and Subhranshu Sahu) ((keith.wallis@thomsonreuters.com)(+65 6870 3803)(Reuters Messaging:keith.wallis.thomsonreuters.com@reuters.net))

Keywords: GLOBAL OIL/