Sempra Energy is a North American energy infrastructure company based in San Diego, California. It divides its interests into two broad categories: public gas & electric utilities, including Southern California Gas Company (SoCalGas) and San Diego Gas & Electric (SDG&E) in southern California, and Oncor Electric Delivery Company (Oncor) in Texas; and businesses not subject to California utilities regulation, chiefly Sempra LNG & Midstream, Sempra Mexico and Sempra Renewables.For 2017, Sempra Energy reported more than $11.2 billion in revenue and 20,000 employees, serving more than 40 million customers worldwide. It is the largest natural gas utility in the United States in terms of coverage area and population served, and is a major force in international natural gas markets.