ARS West, also known as American Retail Services, was founded in 2003 and owns and operates convenience stores in Arizona, California, Colorado, New Mexico, Oregon, Utah, Washington and Wyoming, offering Shell branded fuels.

Operating both ARS and Porter's branded c-stores, 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.

In mid-2021, ARS Fresno LLC sold 35 Porter’s locations mainly in Oregon and western Washington to Alimentation Couche-Tard Inc., Laval, Quebec.

For benchmarking purposes, store counts are as of Jan. 1, 2022.

Headquarters:Oceanside, California
No. of Stores:54
Rank Last Year:76