
    No. 71-1179.
    No. 71-1188.
    No. 71-1326.
    Amoco Production Co. v. Waechter et al.; Cities Service Oil Co. v. Matzen et al.; and Federal Power Commission v. Mobil Oil Corp. et al.,
   406 U. S. 976. Petitions for rehearing denied.

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