Instead, oil refiners have been able to raise their profit margins.

In a panic over future supplies, oil refiners are scrambling for every barrel they can get.

The oil refiner has problems of its own.

The Northeastern states have refused to require oil refiners to produce that gasoline here.

The customers include chemicals companies, construction firms, and oil refiners.

The company would also be the largest oil refiner in the United States.

It is as if oil refiners had joined the Sierra Club.

Industry critics, particularly oil refiners, say the costs would be far higher.

For the first time in years oil refiners are in the driver's seat.

For the nation's oil refiners, Hurricane Katrina was a disaster long in the making.