Washington ? The Senate passed an energy bill late Thursday that includes an increase in automobile fuel economy, new laws against energy price-gouging and a requirement for huge increases in the production of ethanol.

In an eleventh-hour compromise fashioned after two days of closed-door meetings, an agreement was reached to increase average fuel economy by 40 percent to 35 miles per gallon for cars, SUVs and pickup trucks by 2020.

But the fuel economy issue threatened to topple the legislation up to the last minute. Majority Leader Harry Reid held off the vote until late into the evening so several senators could be called back to Capitol Hill to provide the 60-vote margin needed to overcome a threatened filibuster from pro-auto industry senators.

Shortly before midnight, senators voted 62-32 to cut off debate, and followed by passing the bill 65-27. The measure now awaits action by the House, which is expected to take it up next week. But attempts to combine the two bills and send legislation to President Bush probably won’t be possible until later this year.

Bush, who was in Alabama visiting a nuclear power plant, said Congress must “be realistic” about the energy legislation and acknowledged that while he supports the increase in ethanol use, he also opposes much of the legislation.

Supporters said the new requirement would save 2.5 million barrels of oil a day by 2025, when large numbers of the more fuel-stingy cars will be on the road.