Founded in 1978 by the Atlantic Richfield Company, ampm is a US-based multinational convenience store chain. With locations in several U.S. states including Arizona, California, Nevada, Oregon, and Washington, as well as international branches in countries such as Costa Rica and Brazil, ampm aims to provide quick and convenient shopping experiences. The brand focuses on offering a variety of snacks, beverages, and essential items to meet the needs of on-the-go consumers.

Notable for being a subsidiary of BP, ampm has made significant strides in expanding its market presence after pulling out of the Eastern United States in 2012 and returning a decade later. The chain's impact is evident through its widespread recognition and customer loyalty across multiple regions. By continually adapting to consumer demands and maintaining a strong brand identity, ampm has solidified its position as a leading convenience store chain globally.