Ghana has recorded its first hydrocarbon discovery in a carbonate reservoir, opening a new frontier for offshore oil and gas exploration as the country steps up efforts to reverse declining production and attract investment into its petroleum industry.
The discovery was made at the Nya Gyidie-1X exploration well in the Deepwater Cape Three Points block, approximately 148 kilometres offshore Ghana, by Planet One Oil & Gas in partnership with GOIL Upstream and the Ghana National Petroleum Corporation (GNPC).
Announced by President John Dramani Mahama on November 10, the find marks Ghana’s first successful test of a Cenomanian-Turonian carbonate reservoir as a primary exploration target. Previous commercial hydrocarbon discoveries in the country have largely been associated with sandstone formations.
The well was drilled in water depths of 2,289 metres, with hydrocarbons encountered in carbonate formations between 3,364 and 3,499 metres below the surface.
The discovery is significant because it introduces a new geological target that could expand Ghana’s offshore exploration opportunities beyond its established petroleum fields.
However, the commercial value of the find remains uncertain. Planet One has not disclosed whether the hydrocarbons are oil or natural gas, while recoverable volumes and development costs are yet to be established.
“Further evaluation is under way to determine the scale of the discovery and the appropriate development approach,” said Planet One Chief Executive Andaleeb Sehgal.
The development comes as Ghana seeks to replenish its petroleum reserves and sustain production from existing offshore assets. In June 2026, Mahama announced $3.5 billion in new upstream investment commitments aimed at supporting exploration and boosting output.
The government has also reported that renewed engagement with industry partners has helped lift crude production from approximately 88,000 barrels per day to more than 120,000 barrels per day.
For investors, the latest discovery offers an encouraging signal that Ghana’s offshore acreage may still hold unexplored potential. Planet One has indicated plans to continue onshore and offshore exploration drilling over the next 12 to 18 months.
The next phase will be critical. Technical assessments will determine whether Nya Gyidie-1X can progress from an exploration discovery into a commercially viable development capable of contributing to Ghana’s future oil and gas revenues.
For Ghana, the opportunity is not simply finding more hydrocarbons, but securing the investment, technology and production capacity needed to turn new discoveries into lasting economic value.