Now that the Organization of Petroleum Exporting Countries reduced supplies 13 percent since September, inventories are falling 1.4 million barrels a day, according to PVM Oil Associates Ltd., the world’s biggest broker of energy trades between banks. OPEC will limit exports again when the group meets March 15, according to a survey by Bloomberg News.

OPEC states have more of an incentive than ever to restrict output because the combination of declining prices and the global recession will reduce earnings 59 percent this year to $402 billion, according to the U.S. Energy Department. Crude demand will drop for a second year, the first back-to-back decline since 1983, the International Energy Agency said.
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Dubai crude, a benchmark for OPEC oil exports to Asia, now costs more for immediate delivery than in the months ahead. The so-called backwardation is a sign of tightening crude supplies. In the last two weeks, BP Plc, the world’s third-largest oil company, sold and unloaded more than 2 million barrels stored on the supertanker Eagle Vienna it had moored off Scotland’s Orkney Islands.

“The market is going to have strong upside, 10 or even 15 percent, even if OPEC doesn’t cut,” said Johannes Benigni, chief executive officer of Vienna-based consultant JBC Energy. “The contango is slowly, but surely, disappearing and that shows the earlier cuts are working.”

Still, the deepening global economic slump may erode oil demand faster than OPEC can cut as chemical plants shut, cargo ships sit idle and motorists stay at home
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The IEA in Paris forecasts a 1 million barrel-a-day drop in consumption this year because of the recession. In the second quarter, demand will contract by 600,000 barrels a day to 84.2 million a day, as refiners perform seasonal maintenance work, the agency said.