No. 9618. April 5, 1968. George C. Dunlap, of Blanchette, Smith Shelton, Dallas, Tex., for petitioner. Robert S. Hillman, Washington, D.C. (Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Lawrence M. Joseph, Washington, D.C., were with him on the brief), for respondent. Before PICKETT, LEWIS and BREITENSTEIN, Circuit Judges. DAVID T. LEWIS, Circuit Judge. This case reaches us through the petition of Pioneer Drilling Co., Inc