ARS West, also known as American Retail Services, operates 54 stores under the ARS and Porter's brands. Stores are in Arizona, California, Colorado, New Mexico, Oregon, Utah, Washington and Wyoming, offering Shell branded fuels.

ARS is operated by parent company MYOBZ LLC. About half of the stores are part of a multistore operation agreement, whereby ARS operates the c-store for the fuel brand but doesn't own the unit. ARS was founded in 2003.

For benchmarking purposes, store counts are as of Jan. 1, 2023.

Headquarters:Oceanside, California
No. of Stores:54
Rank Last Year:123