Workers from several Utah companies engaged in oil exploration or drilling have been certified as eligible for Free Trade Act benefits if they were separated from any of those companies within designated certification periods.

Floyd G. Astin, Utah Department of Employment Security administrator, said the benefits include payment of retroactive trade act unemployment insurance, future payment of approved training, job search and relocation allowances. The companies and the certification periods are:- General Well Service, Roosevelt, Aug. 2, 1986-Nov. 17, 1990.

- BJ Titan, Roosevelt, Oct. 1, 1985-Nov. 28, 1990.

- Halliburton, Vernal, Oct. 1, 1985-Sept. 30, 1987.

- Halliburton Wellex Div., Vernal, Oct. 1, 1985-Sept. 30, 1987.

- Gearhart Industries, Vernal, Oct. 1, 1985-Dec. 31, 1987.

- Dowell Schlumberger, Vernal, Oct. 1, 1985-Sept. 30, 1987.

- Tuboscope Inc., Vernal, Oct. 1, 1985-Sept. 30, 1987.

- Adcor Drilling, Vernal, Oct. 1, 1985-Dec. 8, 1990.

- Western Co. of North America, Vernal, Oct. 1, 1985-Dec. 11, 1990.

- RJ Mauning Co., Vernal, Oct. 1, 1985-Dec. 6, 1990.

- Loffland Bros. Drilling, Vernal, Oct. 1, 1985-Dec. 11, 1990.

Astin said interested workers previously separated from any of these companies within the certification period report to their nearest Job Service office to apply for the benefits.