Oil and Gas Journal, 1994, More drilling due near Arizona CO2/helium strike: Oil and Gas Journal, v. 92, no. 36, p. 42, 44. Authors Oil and Gas Journal Publication Date 1994 Citation Oil and Gas Journal, v. 92, no. 36, p. 42, 44. State AZ Province CP County AP Placenames St. Johns area Springerville Volcanic Field Keywords Helium Carbon Dioxide Subsurface Exploration More Keywords Helium, Carbon Dioxide, Subsurface, Exploration, AzGeoBib RefNum 13148