Top Tier Gasoline

GEI guarantees high quality gas that meets Top Tier Gasoline requirement including higher levels of cleaning detergents that improves your engine performance—designed to help your car run smoother and longer. All of our Branded Partners support the Top Tier Gasoline requirements.


BP is one of the world’s leading integrated oil and gas companies. We provide customers with fuel for transportation, energy for heat and light, lubricants to keep engines moving, and the petrochemicals products used to make everyday items as diverse as paints, clothes and packaging.

In October 2017, BP announced the reintroduction of their long-standing Amoco brand to the US fuel retail sector – around a century after the first Amoco Service Station opened in Minneapolis, Minnesota. When Amoco and BP merged in 1998, the new company, BP Amoco, became the largest producer of both oil and natural gas in the US. In 2001, BP Amoco changed its brand to simply ‘BP’.

The 2017 reintroduction of Amoco as a retail brand alongside BP is taking place in US cities with potential additional growth opportunities.

CEO: Robert Dudley
London, England
Founded: 1909
BP Portal Login


CITGO Petroleum Corporation is an American refiner, transporter and marketer of transportation fuels, lubricants, petrochemicals and other industrial products. The company is owned by PDV America, Inc., an indirect wholly owned subsidiary of Petróleos de Venezuela, S.A., the national oil company of Venezuela. The company has its headquarters in the Energy Corridor area of Houston, Texas.

CEO: Asdrúbal Chávez 
Houston, Texas
Founded: 1910
CITGO Portal Login


Exxon Mobil Corporation is an American multinational oil and gas corporation headquartered in Irving, Texas, which is a part of the Dallas–Fort Worth metroplex.

CEO: Darren W. Woods
Headquarters: Irving, Texas
Founded: 1882
ExxonMobil Portal Login


Marathon Oil Corporation is an American petroleum and natural gas exploration and production company headquartered in the Marathon Oil Tower in Houston, Texas.

CEO: Lee M. Tillman
Houston, Texas
Founded: 1887
Marathon Portal Login


Shell Oil Company is the United States-based subsidiary of Royal Dutch Shell, a multinational “oil major” of Anglo-Dutch origins, which is amongst the largest oil companies in the world. Approximately 22,000 Shell employees are based in the U.S.

CEO: Ben van Beurden
Houston, Texas
Founded: 1912
Shell Portal Login

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Graham Enterprise, Inc.
750 Bunker Court
Suite 100
Vernon Hills, IL, 60061

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