GasLog Ltd. (GasLog) is an owner, operator and manager of liquefied natural gas (LNG) carriers. The Company is a holding company. Its subsidiaries conduct all of its operations and own all of its operating assets, including its ships. The Company operates in two segments: vessel ownership and vessel management. In the vessel ownership segment, the services provided primarily consist of chartering out company-owned LNG carriers, and in the vessel management segment the services provided consist of LNG carrier technical management services, as well as LNG carrier construction supervision services and other vessel management services provided to the Company's vessel ownership segment and to external third parties.