In the western Arctic, Northern Transportation Company Limited (NTCL) is the largest marine operator for the Mackenzie River Watershed (including the Mackenzie River and Great Slave Lake), the Arctic coast and islands, and Alaska. Utilizing a fleet of tugs and dual-purpose barges, NTCL 's principal concerns are bulk petroleum products and dry cargo for communities, defence installations, and oil and gas exploration sites across the North.
The government of Nunavut coordinates the eastern Arctic sealift of dry cargo and bulk fuel for government departments, communities and residents. Other shippers using sealift services may ship under the same terms and conditions of the contract.
Many commercial shipping companies operate in the eastern Arctic. These include Nunavut Sealink and Supply Inc. (NSSI) , Nunavut Eastern Arctic Shipping (NEAS) , NTCL and the Woodward Group, who provide re-supply services to the eastern Arctic with services from Churchill and Montreal. NSSI represents a partnership between Arctic Co-operatives Limited and Desgagnés Transarctik Inc. NSSI , NEAS and NTCL provide dry cargo sealift services. NSSI and NEAS use general cargo and roll-on roll-off vessels, while NTCL uses a tug and barge combination. The Woodward Group delivers bulk fuel to the Nunavut region using tankers.