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Ghana Contract Monitor

5. Offshore South-West Tano Block

Contract Parties

GOSCO (Operator), Heritage E&P, Blue Star E&P, GNPC EXPLORCO.

Effective Date/Initial Exploration Period

Effective Date: February 5, 2015

Initial Exploration Period (2.5 years+2 years extension): February 5, 2015 – August 4, 2019

Minimum Exploration Program (Initial Phase)

  • Reprocess up to 175sqkm of 3D data

  • Drill one (1) Exploration Well

Minimum Expenditure


Observations as of 2017

The initial Exploration phase has been extended by 2 years due to ITLOS. Geophysical and Geological (G&G) studies are ongoing for prospect evaluation.

The Contractor has informed the PC of its plan to drill its first exploration well, Asanfena-1X in Q3 2020. Contractor began the process of procuring goods and services for the well.

Drilling of well may be deferred to 2021 due to the CODVID-19 pandemic.

In 2020, the contractors submitted to the Petroleum Commission, plans for exploration drilling preparatory activities including contracting of key services, and plans to secure a rig. These plans were however suspended on account of Covid.

The Minister for Energy granted GOSCO a restitution time of nine (9) months to compensate for the time lost due to the pandemic.

The contractors plan to drill their obligatory exploration well, Mansonia1X in Q2 2022.