Oil & Gas

Longitude supports a wide array of offshore oil and gas projects, covering a diverse range of vessels & other assets.

The Oil & Gas Sector

Our vast experience in oil and gas infrastructure engineering has made us the trusted choice for the provision of project management, naval architecture and structural design services. Our diverse client base includes oil and gas majors and EPCIC contractors.

From design phases, to yard construction follow-up, and survey, we provide our clients with the following services:

  • Oil and gas project management, schedule and manpower management
  • Marine operations design and in-place design
  • Naval architecture services for the computation and compliance verification of floating units’ including, motion analysis, wave loading, intact and damage stability and hull strength
  • Naval architecture services for the design and analysis of offshore moorings, quayside mooring, riser and pipeline arrangements
  • Structural design services for the design and verification of hull structures, topside module structure, jackets and foundations, deck appurtenances, grillage and sea-fastening
  • Structural asset integrity for fixed and floating assets
  • Marine engineering services for the selection of marine and mechanical equipment and production of system P&IDs

With more than 10 years’ experience with complex maritime infrastructure engineering projects, Longitude is one of the world’s leading oil and gas project management and engineering companies.

Longitude operates across the multiple project design phases including Concept, Pre-FEED, FEED and detailed design, for which we also prepare project costing (CAPEX and OPEX) and schedule estimates.

Key Contacts

Managing Director, Longitude USA


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Oil & Gas Market Lead, Longitude

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Case Studies View All

Decommissioning Barge Conceptual Study

Longitude Engineering was contracted by PTTEP Thailand to develop the conceptual engineering for a fixed platform decommissioning asset via reverse floatover and jacket lifting. FACTS AND FIGURES: Can accommodate the…

MOPU LEG to MAT Re-Assessment, Repair Engineering and Repair Assistance

The MOPU Sepat was converted in 2011 from the mobile self-elevating platform “GPS PRODUCER 1” by Longitude. It was designed, developed and manufactured by Baker Marine Corporation as a…

WEST LINUS Drill Floor Vibration Study for SEADRILL RIG

Longitude were contracted by Jurong Shipyard to perform a vibration study in order to reveal possible resonance problem in the drill floor of a Seadrill Jack up vessel. Facts and…