G&M Oil Co. Inc.

Founded in Orange County, California, in 1969, G&M Oil has proudly served Southern California for more than 50 years. G&M is one of California's largest independently owned fuel retailers with 210 locations throughout Los Angeles, Orange, San Bernardino, Riverside, San Diego and Ventura Counties. G&M partners with Chevron and ExtraMile and is consistently recognized for excelling in their Retail Excellence programs, receiving hundreds of top awards for high-quality customer and service standards, the company said.

G&M fueling stations offer a wide variety of fueling options, including alternatives such as biodiesel, E-85, hydrogen and EV charging, while retail stores prioritize convenience, cleanliness and customer service to ensure customers leave "full-filled."

For benchmarking purposes, store counts are as of Jan. 1, 2025.