Producer
Southern California Gas Company (SoCalGas)
Southern California Gas Company (SoCalGas; San Diego, CA; subsidiary of Sempra Energy, NYSE: SRE) is the largest US natural gas distribution utility and the operator of the Aliso Canyon underground gas storage facility in Los Angeles County — the largest underground gas storage site in the United States by working gas capacity (~86.6 Bcf). SoCalGas operates four underground storage fields in Southern California: Aliso Canyon (Porter Ranch), Playa del Rey (Los Angeles), Honor Rancho (Santa Clarita), and the Goleta field. These four fields together hold the entire gas buffer for the Southern California and San Diego markets. In October 2015, a blowout at Aliso Canyon's SS-25 injection well released approximately 96,000 metric tonnes of methane over 112 days in the largest methane leak in US history. SoCalGas serves approximately 21 million customers across Southern California and San Diego.
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Goods downstream
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Facilities
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Stories
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Residential & Commercial Gas Distribution
65%Underground Storage Operations
20%Intrastate Transmission
10%Hydrogen & Emerging Fuels
5%
Intelligence
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Origin2023
Southern California Gas Company traces to 1867, when Los Angeles Gas Company was formed to provide manufactured gas (made by distilling coal) for street lighting in a Los Angeles with a population of just 5,000. As California grew through the Gold Rush era and post-Civil War western settlement, manufactured gas served the emerging urban area. In 1913, natural gas was first delivered to Los Angeles via pipeline from oil fields — a direct cost advantage that led rapidly to replacement of the manufactured gas system. SoCalGas grew through consolidation of smaller California gas companies throughout the 20th century, eventually serving the urbanized Southern California megalopolis. The Aliso Canyon underground gas storage field — a depleted oil field in the Santa Susana Mountains above Porter Ranch in Los Angeles County — was converted to gas storage in 1973 specifically to buffer against the supply disruptions Southern California was experiencing during the Arab Oil Embargo era. Aliso Canyon was designed as an emergency gas reserve for the entire Southern California basin. The 2015 blowout of SS-25 well — which released the largest methane plume in US history — exposed how completely the entire Southern California gas system (21 million customers plus multiple gas-fired power plants) depends on a single underground facility that had functioned without incident for 42 years.
Southern California Gas Company ↗