
    No. 71-1169.
    No. 71-1179.
    No. 71-1188.
    No. 71-1191.
    No. 71-1326.
    Mobil Oil Corp. v. Matzen et al.; Amoco Production Co. v. Waechter et al.; Cities Service Oil Co. v. Matzen et al.; Shell Oil Co. v. Matzen et al.; and Federal Power Commission v. Mobil Oil Corp. et al.
   C. A. D. C. Cir. Certiorari denied. Mr. Justice Douglas is of the opinion that certiorari should be granted.

Mr. Justice Stewart and Mr. Justice Powell took no part in the consideration or decision of these petitions.

Reported below: 149 U. S. App. D. C. 310, 463 F. 2d 256,  