EXXON <XON> CUTS HEATING OIL PRICE, TRADERS SAID Oil traders in the New York area said Exxon Corp's Exxon U.S.A. unit reduced the price it charges contract barge customers for heating oil in New York harbor 0.50 cent a gallon, effective today. They said the reduction brings Exxon's contract barge price to 49.75. The price decrease follows sharp declines in heating oil prices in the spot and futures markets, traders said.