Complete Genome Sequence of Hyperthermophilic Archaeon Thermococcus sp. EXT12c, Isolated from the East Pacific Rise 9°N

We report the genome sequence of Thermococcus sp. EXT12c isolated from a deep-sea hydrothermal vent at the East Pacific Rise 9°N. Microbes in the genus Thermococcus are able to grow anaerobically at high temperature, around neutral pH, and some of them under high hydrostatic pressure.