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Oil and Gas Journal, 1999, Arizona-New Mexico CO2-helium deposit detailed: Oil and Gas Journal, v. 97, no. 27, p. 89-92.
Heylmun, E.B., 1997, Arizona's Holbrook salt basin holds oil, gas opportunities: Oil and Gas Journal, v. 95, no. 18, p. 127-128, 131-132.
Petzet, G.A., 1997, Arizona's Holbrook CO2 area may hold oil, gas reserves: Oil and Gas Journal, v. 95, no. 42, p. 84-85.
Foster, Ed, 1996, Non-Navajo gas well doing well, firm says: Arizona Republic, July 9, 1996, p. E2.
Sherwood Lollar, B., Ballentine, C., and O'Nions, R.K., 1995, Mantle-derived volatiles in the continental crust - Evidence for mantle-derived carbon based on C/He relationships and stable isotope signatures [abs.]: Geological Society of America Abstracts with Programs, v. 27, no. 6, p. A-36.
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