Specifications - Neptune, Gulf of Mexico, USA

Key Data
Location	Gulf of Mexico
Blocks	Atwater blocks 573, 574, 575, 617, and 618,
Blocks	120 miles from Louisiana
Landfall	120 miles from Louisiana
Water Depths	4,200ft to 6,500ft
Recoverable Reserves	Between 100 and 150 million barrels of oil equivalent
Discovered	1995
Geology	Western Atwater Foldbelt.
Neptune-2	1997
Neptune-3	2002, 120ft of net pay
Neptune-5	2003, 500ft of net pay
Neptune-7	2004, 114ft of net pay
Rig	Development Driller 1
Development	Tension Leg Platform (TLP)
Quarters	26 people permanent, 24 temporary
Helideck	S-92 helicopter
Hull	Mono-column steel hull
Column Height	128 ft (39m)
Diameter	79ft (23m)
Pontoons	3
Tendons	6
Tendon Segments	289ft (88m)
Piles	6 piles
Diameter	96ins
Length	414ft
Gross Costs	$850m
Oil and Gas Export	Caesar and Cleopatra trunk lines
Oil Export	20in diameter by 23 miles
Gas Line	12.7in diameter by 23 miles
Key Players
Operator	BHP Billiton (35%) Marathon Oil (30%) Woodside Energy (20%) Maxus Exploration (15%)
Design	Atlantia Seastar
EPCi	SBM Atlantia
Fabricated	Gulf Island fabricators
Assembled	Heerema Marine Contractors
Tendon Supplier	Europipe.
Connections	Vetco
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