coal presentations, reports and maps
the university of oklahoma
Northeast Oklahoma Shelf Coalbed-Methane Activity and Issues, 1994-2012 (2012 Osage Oil & Gas Summit)
Hartshorne Coal Rank Applied to Oklahoma Arkoma Basin Coalbed-Methane Activity (2010 TSOP Annual Meeting)
Two Decades of Oklahoma Coalbed-Methane Activity, 1988–2008 (2009 AAPG Mid-Continent Meeting)
articles