www.oceaneering.com03/07

The Ocean Intervention III is a mutli-service vessel built in 2005. Commencing in February 2007, the vessel will be on long-term charter to Oceaneering and available for light construction and subsea intervention, maintenance, and repair projects in the U.S. Gulf of Mexico. The Ocean Intervention III offers Customers an additional choice for vessel capabilities, and when combined with Oceaneering’s ROV systems, project management, installation engineering, and offshore operational expertise represents a first-in-class asset for subsea projects.

Features:1300 T deck capacity8,200 ft2 clear deckLarge moonpoolTwo Oceaneering Work Class ROVsOnboard ROV tool suite154 T Crane with Active Heave CompensationAccommodations for 75 personsDNV AUTR (Class 2) DP systemHelideck

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Typical Projects:Subsea InterventionFlowline Jumper InstallationSubsea Tree InstallationWell Abandonment and Wireline ServicesSubsea Module InstallationIMR (Inspection, Maintenance, and Repair)

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Oceaneering International, Inc. 11911 FM 529 • Houston, TX 77041 • Phone: 713.329.4500 • Fax: 713.329.4621www.oceaneering.com

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IGeneral Information:Classification: DNV DnV + 1A1 - EO – SF – DK (+) – HL (+) - LFL* DYN POS AUTR – Clean

– Comf-V(3) - Helidk.Built: Severnav S.A., Norway (2005)Flag: NorwayPort: ÅLESUNDDimensionsLength: 297 ftBeam: 61.6 ftMolded Depth: 24.9 ftDraft: 19.7 ftOpen Deck Area: 8,200 ft2

Weights:Cargo Deck Load Capacity: 1,300 TGross Tonnage: 3,996 TNet Tonnage: 1,512 TPower and PropulsionGenerators: 5 x 1900 kWMain Azimuth Thrusters: 2 x 2500 kWSide Thrusters: 2 x 833 kW and 1 x 883 kWCapacitiesFuel Oil: 317,000 galLube Oil: 74,000 galBallast water: 680,000 galFresh Water: 200,000 galPerformanceSpeed, Maximum: 17 knotsSpeed, Cruising: 15 knotsAccommodations

75 personsMain Deck Crane

77 ton single fall / 154 tonne double fall10,000 ft of wireActive Heave Compensation

Working Moonpool23 ft x 23 ft

ROV2 x Oceaneering Work Class ROV’sHeavy weather side launch deployment systemsBuilt in ROV controlComplete ROV tooling Suite

Built-In SurveyFugro Chance Subsea Positioning

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