Teekay Tankers Ltd. provides marine transportation services to oil industries in Bermuda and internationally. It operates through two segments, Conventional Tanker and Ship-to-ship Transfer (STS). The company offers voyage and time charter services; and offshore STS transfer services of commodities primarily crude oil and refined oil products, as well as liquid gases and various other products. It also provides vessels commercial and technical management, LNG terminal management, consultancy, procurement, and equipment rental services; and lightering support services, including full service lightering and other lightering support services. As of December 31, 2018, it operated a fleet of 56 owned and leased conventional tankers, 3 in-chartered vessels, and 1 jointly-owned very large crude carrier; and 6 STS support vessels. Its vessels operated under fixed-rate time charter contracts with its customers. The company was founded in 2007 and is based in Hamilton, Bermuda.