
    No. 81-1919.
    No. 81-1920.
    No. 81-1921.
    No. 81-1922.
    Grounds et al. v. Mobil Oil Corp. et al.; Panhandle Eastern Pipe Line Co. et al. v. Mobil Oil Corp. et al.; Northern Natural Gas Co. et al. v. Mobil Oil Corp. et al.; and Cities Service Gas Co., et al. v. Mobil Oil Corp. et al.
   C. A. 10th Cir. Certiorari denied.

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

Reported below: 666 F. 2d 1279.  