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


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


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

Fluor Corporation

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

Baker Hughes

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


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

Ensco Plc

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

Diamond Offshore Drilling

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

Rowan Companies

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

Noble Corporation

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

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