Union Oil Company, Unknown Location No description specified. 1-7 (7 Records) Documents Cultural Resource Survey Report for Union Oil USA #40 Drill Pad and Access Road (1978) Joseph Geothermal (1981) Joseph Geothermal (6 / 11 and 7 / 6 1981 Edition) (1981) Meadow Geothermal (1982) Pavant Butte Geothermal (1982) Shaute Hills Geothermal (1981) Smelter Knolls Geothermal (1982)