MacCulloch Oil and Gas Field

Summary Information

• Operator: ConocoPhilips
• Country: UK
• Location: Blocks 15/24b in the Central North Sea
• Production start: 1997
• Partners:
• Type: Oil / Gas
• Estimated Reserves:
• Production Volume:

Description

• The MacCulloch field was developed using an FPSO vessel, the North Sea Producer FPSO.
• The MacCulloch reservoir produced light crude, 32-37o API.
• MacCulloch production was via two Drill Centres, West (WDC) and East (EDC), located 1.6 km and 2.9 km to the West and South East of the vessel location respectively.
• Eleven gas lifted production wells produced through two drill centres. Ten wells produced through three flexible flowlines from WDC and one well produced from EDC. Oil and gas were exported from the FPSO vessel to the Piper Bravo platform through a 10” oil pipeline and 6” gas pipeline.
• Producing around 60,000bbl/day at its peak, production declined to around 7,200 bbl/day gross with five wells remaining online and an average water cut of ~88% prior to the MacCulloch Cessation of Production.

Contractors

• A&P Tyne: Construction of Hull
• SLP: Topsides construction
• BiFab: Manifold
• Emtunga: Control Room

History

• 1995 - Government approval awarded
• 1997 - First oil produced
• 2011 - Endeavour Announces Acquisition of 40%
• 2012 - Ithaca acquires a 14% interest from Noble
• 2015 - Production ceased
• 2019 - Chrysaor acquired Conocophillips's stake in the field
• 2019 - Approval granted for decommissioning
• 2021 - Premier Oil and Chrysaor merge to create Harbour Energy

Links

1. UK Oil and Gas Fields by Approval Date
2. UK Oil and Gas Field Approved Decommissioning Programmes
3. List Of Oil Production Platforms In The UK
4. BiFab Subsea References
5. Emtunga Offshore Platform References
6. Endeavour Announces Acquisition of U.K. Producing Assets
7. Acquisition of Non-Operated Interests in Cook and MacCulloch UK North Sea Producing Fields
8. ConocoPhillips Completes $2.7 Billion Sale of United Kingdom E&P Subsidiaries