About Us

Kelley Williamson and KW Oil

KWOil is a division of the Kelley Williamson Company, which was founded in 1926. Primarily, we focus on managing and administering oils and lubricants to a wide range of businesses in Illinois and Wisconsin.

Aside from offering high-quality oils and lubricants for a wide variety of applications, we also provide valuable services such as expertise and consulting, Mobil Serv oil analysis, lubricant tanks, and computerized tank monitoring systems. And as the parent company of Kelley’s Markets, we also manage nearly 50 state-of-the-art Kelley’s Market convenience stores and fuel centers throughout Northern Illinois and Southern Wisconsin.

Since the beginning, KWOil has been founded on core principles of providing our customers with quality products, timely service, and expert product knowledge. We began as a small gasoline and lubricant distributor and have since grown to become Northern Illinois and Southern Wisconsin’s largest supplier of commercial, agricultural, and industrial fuels and lubricants because of our deeply-rooted values and customer-focus.

Every member of our team is dedicated to addressing your needs with responsibility, integrity, and courtesy. Please contact us to request a quote or to ask us any questions; we’d love to help you in any way we can, and we guarantee that your experience will exceed your expectations!

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