One hundred thirty-four cargo and ballast pumps for three product tankers being built for Exxon (U.S.A.) by Avondale Shipyards, New Orleans, La., will be supplied by the Shawnee, Okla., plant of Worthington Group, McGraw-Edison Company.

The special marine cargo pumps plus spare parts included in the multimillion-dollar order, will be delivered in 1982. The three 42,000-dwt product carriers are scheduled to be delivered in 1983 and 1984. Later this year, Worthington will test for Exxon a highly efficient new stripping system designed to reduce the amount of liquid product remaining on tank surfaces after unloading.