This Western Research Institute (WRI) jointly sponsored research (JSR) project augmented and complemented research conducted by the University of Wyoming Institute For Energy Research for the Gas Research Institute. The project, "A New Innovative Exploitation Strategy for Gas Accumulations Within Pressure Compartments," was a continuation of a project funded by the GRI Pressure Compartmentalization Program that began in 1990. That project, "Analysis of Pressure Chambers and Seals in the Powder River Basin, Wyoming and Montana," characterized a new class of hydrocarbon traps, the discovery of which can provide an impetus to revitalize the domestic petroleum industry.