Graham Enterprise

Graham Enterprise Inc. (GEI) has been associated with petroleum since 1922. The third-generation, family-owned company's convenience stores average more than 2 million gallons per site. Twenty of its 37 sites include car washes. It also supplies approximately 140 additional outlets, with annual fuel volumes of more than 190 million gallons.

It recently launched its new brand, Trio. Trio stores feature freshly baked cinnamon rolls, freshly brewed coffee, handcrafted fresh pizzas, specialty craft beers and more. It prides itself on its pristine and clean stores, according to its website.

GEI operates in northern Illinois and offers the Amoco, BP, Exxon, CITGO, Marathon, Mobil and Shell fuel brands.

GEI has additional sites under development, including a rebranding initiative designed to invigorate the sites and position the chain as a market leader in its region.

For benchmarking purposes, store counts are as of Jan. 1, 2021.