ORAN, Algeria — Here's how bad things are for OPEC these days: It announced its largest-ever production cut Wednesday and oil prices promptly slumped to $40 a barrel, the lowest level in more than four years.

Ministers of the 13-nation oil cartel were trying to shock moribund markets into life by slashing output 2.2 million barrels a day, more than double two recent production cuts. "I hope we surprised you," said OPEC President Chakib Khelil when asked whether the move would send prices upward.

Instead the markets yawned and there appeared to be more good news for consumers — at least for the short term. Although declining gasoline prices have begun to edge up after falling from an average of $4.11 a gallon in July to a low of $1.65 on Friday, analysts believe oil's decline could send them even lower.

Benchmark crude prices tumbled to $39.88 per barrel Wednesday, levels not seen since July 2004 on the New York Mercantile Exchange. In just five months, crude has given up all the price gains made over the past four years amid an oil glut and the spreading recession.

Gasoline prices have been plunging right behind crude, providing a bit of economic cover for almost everyone. Yet crude has fallen so far, so fast, there is growing alarm that consumers are being set up for a price shock.

OPEC's latest cut is likely to curtail, at least somewhat, the ongoing decline in gasoline and heating oil prices, said Peter Beutel, an oil analyst at Cameron Hanover.

What OPEC is trying to do, Beutel said, is "slowly dry up a pool of available crude oil and, ultimately, it will mean higher prices."

By Memorial Day, he said, gasoline could be anywhere from 50 cents to $1 a gallon higher than current levels.

OPEC was unable to tamp down soaring oil prices over the summer, which hit a record near $150 a barrel in July, and it has been unable to stop crude on the way down. The problem confronting OPEC is that demand rather than supply has been ruling the market.

The price of oil is closely tied with the buying habits of Americans, which are now hunkering down for the worst recession in at least a generation.

The Cooper Tire and Rubber Co. said Wednesday it will cut 1,300 jobs and close a plant in Georgia.

Newell Rubbermaid Inc. is reducing its salaried work force by as much as 10 percent. The Atlanta-based company slashed its fourth-quarter and full-year profit guidance Wednesday.

In Detroit, General Motors Corp. put the brakes on construction of an engine factory trying to hold on to the cash that it has left.