Former workers of Nowsco Services, Tri-State Oil Tools and Geophysical Inc. in Utah have been certified as eligible for Federal Trade Act benefits, according to Floyd G. Astin, Utah Department of Employment Security administrator.

The benefits may include retroactive trade act unemployment benefits and future payment of approved training, job search and relocation allowances for workers laid off by Tri-State Oil or Geophysical Services between Oct. 1, 1985, and Feb. 9, 1991.Former workers of Nowsco Services may receive the same allowances if laid off between Oct. 1, 1985, and Dec. 31, 1986.

Astin said those involved should contact their local Job Service office.