Aera Energy is one of the largest oil and gas producers in California. It produces more than 150,000 barrels of oil and over 50 million cubic feet of natural gas on a daily basis. The company has oil field operations in San Joaquin Valley and Ventura and Monterey counties in California. Aera Energy offers a range of onshore and offshore exploration and production services. It works in collaboration with Toll Brothers to develop a residential community in Yorba Linda in California. The company provides financial support to nearly 100 community-based organizations. Aera Energy maintains a staff of approximately 1,100 employees. It is jointly owned by Shell and Exxon Mobil Corporation.