GROUNDS v. NORTHERN NATURAL GAS COMPANY

James E. Grigsby, Oklahoma City, Okla., for appellants, Royalty Owners. Byron M. Gray, Topeka, Kan., for National Helium Corp. Joe Rolston, Wichita, Kan., for Northern Natural Gas Co. and Northern Helex Co. Charles Lindberg, Oklahoma City, Okla., for Socony Mobil Oil Co. Charles V. Wheeler, Oklahoma City, Okla., for Cities Service Gas Co. George C. Spradling, Wichita, Kan., for Pan American Petroleum Corp. Malcolm Miller, Wichita, Kan., for Texaco, Inc.