Powder River Basin Coal-Bed Methane Project
https://pubs.usgs.gov/dds/dds-069/dds-069-c/REPORTS/Chapter_2.pdf

Montana Bureau of Mines and Geology, U.S. Bureau of Land Management


The purpose of this web site is to offer a comprehensive yet
concise resource on coal-bed methane documentation. This searchable database contains reference listings for publications, books, and articles that relate to coal-bed methane development and related natural resources. Included in the database are flags that help determine if a specific publication is relevant, and a description of where to find a copy.

This resource is referenced here:
Subject: Environmental Science:Energy:Fossil Fuels,
Resource Type: Scientific ResourcesBibliography, Collection
Theme: Teach the Earth:Course Topics:Environmental Science