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- USGS Fact Sheet FS-123-00, 2000, Coal-Bed Methane: Potential and Concerns
- USGS Fact Sheet FS-156-00, 2000, Water Produced with Coal-Bed Methane
- USGS Fact Sheet FS-110-01, 2003, Coal-Bed Gas Resources of the Rocky Mountain Region
- De Bruin, R.H., R.M. Lyman, R.W. Jones and L.W. Cook, 2004, Coalbed Methane in Wyoming, Wyoming State Geological Survey, Information Pamphlet 7 (second revision)
- Wheaton, J., and T. Donato, 2004, Coalbed-methane basics: Powder River Basin, Montana: Information Pamphlet 5, Montana Bureau of Mines and Geology, 20 pp.
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