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[[File:Discoveries-breathe-new-life-in-newfoundland-hero.jpg|thumbnail|300px|The semi-submersible rig West Aquarius, near St. John’s, Newfoundland, drilled Statoil’s Harpoon and Bay du Nord light oil discoveries in 2013. Courtesy of Statoil ASA and the AAPG Explorer. See more in the [http://www.aapg.org/publications/news/explorer/details/articleid/8055/discoveries-breathe-new-life-in-newfoundland#prettyPhoto%5BGallery%201464%5D/0/ AAPG Explorer].]]
[[File:Discoveries-breathe-new-life-in-newfoundland-hero.jpg|thumbnail|300px|The semi-submersible rig West Aquarius, near St. John’s, Newfoundland, drilled Statoil’s Harpoon and Bay du Nord light oil discoveries in 2013. Courtesy of Statoil ASA and the AAPG Explorer. See more in the [http://www.aapg.org/publications/news/explorer/details/articleid/8055/discoveries-breathe-new-life-in-newfoundland#prettyPhoto%5BGallery%201464%5D/0/ AAPG Explorer].]]
An offshore rig is a large structure on or in water with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for refining and marketing. In many cases, the platform contains facilities to house the workforce as well.
Offshore rigs are similar to [[land rigs]] but with several additional features to adapt them to the marine environment. Those features include
Offshore rigs are similar to [[land rigs]] but with several additional features to adapt them to the marine environment. Those features include