The Objective of this Project is to demonstrate the technical feasibility of using superheated steam as a heat-carrying medium to retort in situ the oil shale in the Green River Formation "leached zone" and provide a mechanism for the recovery of this shale oil with a minimum impact on the environment. Utilizing primarily the natural porosity in the "leached zone", approximately 450 billion BTU's of heat have been injected into a site over a 2-year period to heat to retorting temperatures a shale zone approximately 540 feet thick and covering about one acre. The Field Project is located at Equity's BX In Situ site in Rio Blanco County in Northwestern Colorado. The current activities at the Project are focused on maximizing the recovery of shale oil believed to be liberated by the steam injection process.