Kelley Williamson Company

Kelley Williamson Company, established in 1926 by Walter Williamson and Nate Kelley, has grown into a prominent distributor of Mobil oils, greases, and fuels in the United States. Headquartered in Rockford, Illinois, the company operates two primary divisions: KW Oil and Kelley’s Market.

KW Oil Division

KW Oil serves as the lubricants and grease division, catering to a diverse clientele including car dealerships, commercial fleets, the aviation industry, and various industrial and agricultural sectors. It is Northern Illinois and Southern Wisconsin's largest supplier of lubricants, motor oils, fuels, and related products.

As an authorized Mobil distributor, KW Oil offers high-quality products from trusted brands. They provide expert consultations, Mobil Serv oil analysis, lubricant tanks, and tank monitoring systems to support their customers' needs.

Kelley’s Market Retail

Kelley’s Market operates nearly 50 convenience stores across Northern Illinois and Southern Wisconsin. These stores are known for their cleanliness, fast and friendly service, well-lit facilities, and state-of-the-art equipment.

Customers enjoy products such as Mobil gasoline, diesel, soy-based biofuels, and mobile payment options for fuel purchases. Some locations also offer electric car charging stations and compressed natural gas (CNG) fueling options.

Locations

The company operates primarily in these locations:

• Chicago, IL, USA
• Madison, WI, USA
• Rockford, IL, USA
• Waunakee, WI, USA

Leadership and Commitment

Under the leadership of John Griffin, grandson of founder Walter Williamson, Kelley Williamson Company continues to uphold its commitment to quality products, exceptional service, and community involvement.

The company’s dedication to innovation and customer satisfaction has solidified its position as a trusted name in the fuel and convenience store industry.