ERHC Energy Inc. focuses on the discovery and development of hydrocarbon reserves throughout Africa. The company's key holdings include working interests in oil and gas exploration blocks situated in the Republic of Kenya, the Republic of Chad, the Joint Development Zone (shared by the Democratic Republic of Sao Tome and Principe and the Federal Republic of Nigeria), and the exclusive economic zone adjacent to Sao Tome. Founded in 1986, this firm operates from its headquarters in Houston, Texas.