Drayton Richdale Corporation, through its subsidiaries, provides infrastructure technology for the petroleum industry. It acquires and utilizes patented methods for oil and gas exploration projects. The company engages in the development and application of the PetroMicronic Process for the extraction of oil from shale ore. It also manufactures and PetroMicronic reactors; and designs, builds, and operates the PetroStrata shale oil extraction plant. The company was formerly known as LegalOpinion.com and changed its name to Drayton Richdale Corporation in January 2004. Drayton Richdale Corporation is headquartered in Las Vegas, Nevada.