Sempra Energy is an energy-service holding company, which engages in the development and operation of energy infrastructure, and provision of electric and gas services. It operates through the following segments: San Diego Gas & Electric Company (SDG&E), Southern California Gas Company (SoCalGas), Sempra Texas Utilities, Sempra Mexico, and Sempra LNG. Read More The SDG&E segment delivers electricity in San Diego County and Southern Orange City. The SoCalGas segment owns and operates a natural gas distribution, transmission, and storage systems. The Sempra Texas Utilities segment comprises the equity method investments in Oncor Holdings and Sharyland Holdings. The Sempra Mexico segment includes the operating companies of IENova. The Sempra LNG segment develops natural gas storage and related pipeline facilities. The company was founded on October 11, 1996 and is headquartered in San Diego, CA. The listed name for SRE is Sempra Energy.