10 Biggest Offshore Drilling Companies 

The biggest offshore drilling company, established in 1926, headquartered in France.

Schlumberger [{ "selector": ".jfdpo-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

Founded in 1919, the company is the second biggest products and services provider

Halliburton [{ "selector": ".edtri-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

The world’s third-biggest offshore drilling company and a major producer of anti-pollution products.

Fluor Corporation [{ "selector": ".cknaf-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

Provides a range of services pertaining to the oil and natural gas sector including Casing and Lining Drilling.

Baker Hughes [{ "selector": ".rtcro-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

The company owns and operates a fleet of 49 offshore drilling units comprising ultra-deepwater oil rig.

Transocean [{ "selector": ".sjolg-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

A provider of offshore drilling services across the globe, it owns a diverse fleet consisting of 39 oil rigs.

Ensco Plc [{ "selector": ".nmadm-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

Offers oil well construction services to independent companies as well as government enterprises.

Diamond Offshore Drilling [{ "selector": ".wmccn-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

Known for operating one of the youngest fleets, consisting of more than 30 jack-up rigs and 4 drillships.

Rowan Companies [{ "selector": ".mubtu-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

Provides offshore-drilling services in the oil and gas sector with a fleet of around 20 drilling units.

Noble Corporation [{ "selector": ".eunzi-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]

The 10th biggest offshore drilling company, established in 2005 by a Norwegian business tycoon.

Seadrill [{ "selector": ".ejrgc-a", "duration": "500ms", "fill": "forwards", "delay": "0ms", "keyframes": [ {"offset": 0, "opacity": 0}, {"offset": 1, "opacity": "1"} ] }]