In its 50-year history, Costco has never seen such demand for gas.

Sky-high gas prices have drivers going out of their way for discounts at the pump. Oil executives warn that even higher prices might be on the horizon.

The warehouse club's total revenue rose 12% to $70.53 billion, topping expectations, as fuel demand drew new members to its gas stations

In its 50-year history, Costco has never seen such demand for gas.