Summary
Sempra Energy, based in San Diego, is an energy services holding company. In 2025, the company had $13.7 billion in revenues with about 53% from natural gas utilities and 33% from electric utilities. Its 20,000 employees serve more than 40 million customers. The company’s main regulated utilities are San Diego Gas & Electric (3.7 million gas and electric customers) and Southern California Gas (22 million gas customers). Oncor, a joint venture, is the largest regulated electric utility in Texas (13 million customers).
The utility is unique in that it has assets in Mexico and larger LNG operations than peers. Sempra LNG is a gas infrastructure company and developer of liquefaction facilities in North America, including new operations in Port Arthur, Texas. IEnova is a joint venture that develops and operates energy infrastructure in Mexico and is increasing its use of renewables, includin
