H.P.C., Inc., Reliance, WY No description specified. 1-2 (2 Records) Documents Intensive Cultural Resource Survey of the H.P.C. Hays Reservoir #141 Well Pad and Access, Sweetwater County, Wyoming (1982) Intensive Cultural Resource Survey of the Hpc Inc. Siberian Ridge Unit #14 Well Pad and Access, Sweetwater County, Wyoming (1982)