Seadrill Partners LLC owns, operates and acquires offshore drilling rigs. The Company's drilling units are under long-term contracts with oil companies, such as Chevron, BP, ExxonMobil and Tullow. The Company provides services to these customers with its fleet. The Company's fleet consists of the semi-submersible West Aquarius, West Capricorn, West Leo, West Sirius; the semi-tender West Vencedor; the tender rig T-15 and T-16; the drillship West Auriga, West Vela, and West Capella. The Company provides drilling services on a dayrate contract basis.