CHARLESTON, W.Va. - When gas station manager Roger Randolph realized it was costing him money each time someone filled up with $4-a-gallon gas, he hung a sign on his pumps: "No more credit cards."

He may be the first in West Virginia to ban plastic, but gas station operators nationwide are reporting similar woes as higher prices translate into higher credit card fees the managers must pay, squeezing profits at the pump.


"The more they buy, the more we lose," said Randolph, who manages Mr. Ed's Chevron in St. Albans. "Gas prices go up, and our profits go down."

His complaints target the so-called interchange fee — a percentage of the sale price paid to credit card companies on every transaction. The percentage is fixed — usually at just under 2 percent — but the dollar amount of the fee rises with the price of the goods or services.

As gas tops $4 a gallon, that pushes fees toward 10 cents a gallon. Now stations, which typically mark up gasoline by 11 to 12 cents a gallon, are seeing profits shrink or even reverse.