No. 24848. July 3, 1968. Marcel Mallet-Prevost, Asst. Gen. Counsel, Mitchell Strickler, Atty., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Elliott Moore, Richard Adelman, Attys., N.L.R.B., Washington, D.C., for petitioner. Stanley E. Neely, Larry M. Lesh, Maurice E. Purnell, Jr., Locke, Purnell, Boren, Laney Neely, Dallas, Tex., for respondent, Pioneer Natural Gas Co., W.N. Lampe, Amarillo, Tex., of counsel. Before THORNBERRY and SIMPSON, Circuit Judges, and ATKINS, District