Take context from the input text and decide on the accurate relationship between 'Transocean' and 'Deepwater Horizon' from the options provided.
Options: headquarters location, creator, owner of, brand

BP also settled with Transocean Ltd (RIGN.VX), which owned the Deepwater Horizon drilling rig, and Halliburton Co (HAL.N), which worked on the Macondo well.
owner of