TomCo Energy Plc functions as an oil development entity, primarily focused on extracting unconventional hydrocarbon resources in the United States. Its current strategy centers on its wholly-owned subsidiary, Greenfield Energy LLC, which is advancing innovative methods for processing oil sands and for in-situ oil recovery. The company maintains ownership of nine oil shale leases, encompassing about 15,488 acres within Uintah County, Utah, situated above the Green River Shale Formation. Recent efforts are directed towards the development of oil sands separation plants and potential drilling activities on leased acreage in Utah through a prospective partnership. The firm is headquartered in Douglas, Isle of Man.