567 P.2d 1322 HAZEL NIX and FRED SCHUPBACH, JR., individually and as representative of all that class of gas royalty owners under Northern Natural Gas Producing Company and Mobil Oil Corporation oil and gas leases in the Hugoton-Anadarko area, Appellees and Cross-Appellants, v. NORTHERN NATURAL GAS PRODUCING COMPANY and MOBIL OIL CORPORATION, Appellants and Cross-Appellees. […]
