Teekay Tankers Ltd. is an international provider of marine transportation to the oil industries. The Company's business is to own crude oil and product tankers. The Company has two segments: conventional tanker and ship-to-ship transfer. Its conventional tanker segment consists of the operation of all of its tankers, including those employed on full service lightering contracts. Its ship-to-ship transfer segment consists of its lightering support services, including those provided to the Company's conventional tanker segment as part of full service lightering operations and other related services. Its operations are managed by Teekay Tankers Management Services Ltd., which provides the Company with commercial, technical, administrative and strategic services. Its fleet consists of approximately 60 conventional vessels (including over 10 in-chartered vessels and an approximately 50%-owned very large crude carrier (VLCC)) and approximately six ship-to-ship (STS) support vessels.