Sempra Energy is a holding company. The Company’s principal operating units are San Diego Gas & Electric Company (SDG&E) and Southern California Gas Company (SoCalGas); Sempra International, which includes Sempra South American Utilities and Sempra Mexico segments, and Sempra U.S. Gas & Power, which includes Sempra Renewables and Sempra Natural Gas segments. Sempra Mexico segment includes the operating companies of the Company’s subsidiary, Infraestructura Energetica Nova, S.A.B. de C.V., as well as certain holding companies and risk management activity. SoCalGas and SDG&E sell, distribute and transport natural gas. The Company's units distribute electricity. SoCalGas also provides natural gas storage services.