Skip to content
EntityQ212975· pop 31· linked from 277 articles

Deepwater Horizon

Sign in to save

former offshore oil drilling rig

Key facts

Name
Deepwater Horizon
Owner
Transocean's Triton Asset Leasing
Operator
BP
Port of registry
Panama (23 February 2001 – 28 December 2004) Majuro (29 December 2004)
Route
Gulf of Mexico
Ordered
December 1998
Builder
Hyundai Heavy Industries
Cost
US$560 million
Laid down
21 March 2000
Acquired
23 February 2001
Maiden voyage
Long Beach, California – Freeport, Texas
Out of service
22 April 2010
Identification
ABS class no. : 0139290 IMO number : 8764597 MMSI no.: 538002213
Fate
Sank on 22 April 2010, after an explosion and fire
Class type
ABS +A1 DPS-3 Column Stabilized MODU
Displacement
52.587 Mg
Length
112 m
Beam
78 m

via Wikipedia infobox

~15 min read

Encyclopedic overview

Deepwater Horizon was an ultra-deepwater, dynamically positioned, semi-submersible offshore drilling rig owned by Transocean and operated by the BP company. On 20 April 2010, while drilling in the Gulf of Mexico at the Macondo Prospect, a blowout caused an explosion on the rig that killed 11 people and ignited a fireball visible from 40 miles (64 km) away. The fire was inextinguishable and, two days later, on 22 April, the Horizon collapsed, leaving the well gushing at the seabed and becoming the largest marine oil spill in history.

Built in 2001 in South Korea by Hyundai Heavy Industries, the rig was commissioned by R&B Falcon (a later asset of Transocean), registered in Majuro, and under lease to BP from 2001 until September 2013. In September 2009, the rig drilled the deepest oil well in history at a vertical depth of 35,050 ft (10,683 m) and measured depth of 35,055 ft (10,685 m) in the Tiber Oil Field at Keathley Canyon block 102, approximately 250 miles (400 km) southeast of Houston, in 4,132 feet (1,259 m) of water.

Excerpted from Wikipedia’s “Deepwater Horizon” article, available under the CC BY-SA 4.0 licence.

On the map