EXXON &lt;XON> EXTENDS MID-GRADE UNLEADED MARKETING
  Exxon Co U.S.A. said it is expanding
  marketing of its mid-grade unleaded gasoline along the U.S.
  East Coast.
      The Exxon Corp subsidiary said the changeover to the
  89-octane unleaded fuel will begin late this month and early
  next in major markets in Virginia, Maryland, Florida, and the
  District of Columbia. The product was introduced in New York,
  New Jersey, Delaware, Connecticut, Rhode Island, Massachusetts,
  New Hampshire and the Philadelphia area late last year.
  

