The Agua Prieta pipeline is a natural gas pipeline project by IENova (a subsidiary of the Texas-based Sempra Energy) that aims to move natural gas from the U.S. state of Arizona to the northern Mexican states of Sonora and Sinaloa. The Yaqui Valley is fed by numerous tributaries which drain the eastern highlands as they flow from the escarpment of the Sierra Madre Occidental to the Gulf of California. The pipeline received a permit from the Mexican government approving its construction; gas distributed through the pipeline will go to the Comisión Federal de Electricidad, the national electric utility of Mexico.