Overview Keep your fleet movingCardlocks are automated fueling sites available to commercial fleet vehicles. MacEwen’s Cardlock network is open 24 hours a day, making it more convenient and efficient to manage your business.Call 1-800-267-7175 or click here to get more information. View Our Cardlock Locations BenefitsWhy it worksConvenience – We have a growing network of conveniently located Cardlock depots in Ontario.Flexibility – Our cards allow you to control the products that can be purchased, set purchase limits, or even set the time of day the cards can be used.Easy communication – Our ProFuel software makes it easy to send custom messages to your cardholders.In-depth reporting – Our Cardlock software package generates management reports – including tracking fuel economy vehicle by vehicle – in a variety of formats to match your accounting system. Esso Cardlock Network MacEwen and EssoMacEwen is an Esso-branded wholesaler. That means we offer our customers access to Esso’s Key to the Highway network. Contact one of our commercial experts today and gain access to the Esso network nationwide. Contact Us Contact Your Nearest LocationCall 1-800-267-7175 or input your city or postal code below to find the nearest location to you!