Gas Profit Guzzlers

When the average price of a gallon of regular gasoline peaked at $3.07 recently, it was partly because the nation's refineries were getting an estimated 99 cents on each gallon sold. That was more than three times the amount they earned a year ago when regular unleaded was selling for $1.87.

The companies that pump oil from the ground swept in an additional 47 cents on each gallon, a 46 percent jump over the same period....