The Role of Oil and Gas in the Pasadena Area
Southern California has a long history with oil and gas, dating back more than a century to the early oil fields of the Los Angeles Basin. Today, even as Pasadena pursues aggressive clean energy goals, natural gas continues to heat many homes and businesses, and refined fuels still power much of the region's transportation network.
Companies in the sector include natural gas utilities, refiners, producers and pipeline operators. Many are also investing in lower-carbon fuels, carbon capture and renewable natural gas as the energy transition accelerates.
How We Evaluated Oil and Gas Companies
We considered each company's role in supplying energy to Pasadena and Southern California, operational scale, safety record, investment in cleaner technologies and overall reputation in the regional market.
The 10 Best Oil and Gas Companies Serving Pasadena
1. SoCalGas
Southern California Gas Company is the natural gas utility serving Pasadena homes and businesses. It maintains an extensive pipeline network and is investing in renewable natural gas and hydrogen research.
2. Sempra
Sempra is the San Diego-based parent company of SoCalGas. It invests in energy infrastructure across California and North America, including natural gas networks and liquefied natural gas facilities.
3. Chevron
Chevron operates a major refinery in El Segundo that supplies gasoline, diesel and jet fuel to Southern California. The company is also investing in renewable fuels and lower-carbon technologies.
4. Phillips 66
Phillips 66 has long operated in the Los Angeles area and continues to supply fuels to the region. The company has been shifting parts of its California operations toward renewable fuels and logistics.
5. Marathon Petroleum
Marathon Petroleum operates a large Los Angeles refinery complex that produces transportation fuels for Southern California drivers and businesses.
6. Valero
Valero operates a refinery in the Wilmington area of Los Angeles and is one of the largest producers of renewable diesel in the world through its joint venture operations.
7. California Resources Corporation
California Resources Corporation is one of the state's largest independent oil and gas producers. It is developing carbon capture and storage projects intended to reduce emissions.
8. Berry Corporation
Berry Corporation is a California-focused energy company producing oil and natural gas, with a long history of operations in the state's producing basins.
9. Kinder Morgan
Kinder Morgan operates pipelines and terminals that move refined products and natural gas throughout California, helping ensure a reliable fuel supply for the Los Angeles region.
10. Signal Hill Petroleum
Signal Hill Petroleum is a Southern California oil producer with a long history in the Long Beach area, known for operating within an urban environment and supporting community redevelopment.
Safety, Regulation and Community Responsibility
Oil and gas operations in California are among the most heavily regulated in the world. Companies must meet strict air quality rules set by regional and state agencies, maintain pipeline safety programs and comply with evolving rules for wells located near homes and schools. Refineries in the Los Angeles area are required to monitor emissions and report information to surrounding communities. Many companies also fund community programs, workforce training and environmental restoration. For residents, understanding these safeguards is part of evaluating how the region manages energy supply responsibly.
Oil and Gas Careers and the Regional Economy
The oil and gas industry continues to support many skilled jobs in Southern California, including engineers, technicians, safety specialists, environmental scientists and pipeline workers. As the energy transition progresses, many of these skills are transferring to renewable fuels, carbon management, hydrogen and grid infrastructure. Community colleges and training programs in the Los Angeles area are helping workers adapt to new technologies. For Pasadena, which has a highly educated workforce and strong engineering firms, the evolution of the energy industry creates opportunities in consulting, research and project development.
Energy Transition Trends
The oil and gas sector in California is changing quickly. Refineries are converting units to produce renewable diesel and sustainable aviation fuel. Utilities are blending renewable natural gas into pipelines and exploring hydrogen. Carbon capture and storage projects are advancing, and state policies continue to encourage electric vehicles and building electrification. Companies that adapt to these shifts will remain important partners during the transition.
Frequently Asked Questions
Who supplies natural gas to Pasadena homes?
Southern California Gas Company, commonly known as SoCalGas, delivers natural gas to homes and businesses in Pasadena.
Are oil companies investing in cleaner fuels?
Yes. Several refiners operating in California have converted or expanded facilities to produce renewable diesel and other lower-carbon fuels, and some producers are developing carbon capture projects to reduce emissions.
Looking Ahead
For Pasadena residents and businesses, oil and gas companies will continue to play a role in energy supply for years to come, even as renewable resources grow. Understanding who supplies your energy, how it is regulated and what cleaner alternatives are available can help you make informed decisions about heating, transportation and long-term energy planning.