About Us

Walters-Dimmick Petroleum, Inc. (WDP) is a long-standing, family owned company based out of Marshall, Michigan, with a primary focus on fuels, convenience retailing, and quick serve restaurants.  This is accomplished through its chain of Shell branded convenience stores and network of Shell branded dealers in southwest Michigan and northern Indiana and Ohio.  In addition to its c-stores, WDP has added branded foodservice operations, such as Subway, Jimmy John's, Quizno's, and Country Kitchen, to many of its locations in order to provide more of a "one-stop-shop" for its customers.  Most recently, the company has converted several of its c-stores to IGA Express grocerettes to better cater to the needs of the communities it services. 

Another aspect of WDP is the wholesale distribution of Shell oils and lubricants along with other automotive and convenience accessories.  These products are distributed to industrial, commercial, agricultural, aeronautical, and consumer accounts, and throughout the company's dealer and retail network, from the 25,000 square ft. bulk and packaged-product warehouse located at its office in Marshall, Michigan.

WDP takes much pride in offering high quality products and services to its customers in an environment that is clean, friendly, and pleasing to the eye.  Its facilities and team members maintain strict standards in cleanliness, quality, and care, in order to provide customers with a positive experience with each visit.  As a result of decades of hard work and dedication in these areas, the WDP team has gained a reputation reflective of their efforts and will continue to strive for excellence in the years to come.