Gas
Planet One makes carbonate discovery offshore Ghana
Planet One Oil & Gas has discovered hydrocarbons at the Nya Gyidie-1X well in Ghana, marking the country's first successful test of a carbonate reservoir.
Key points
- Planet One found hydrocarbons at the Nya Gyidie-1X exploration well within the Deepwater Cape Three Points Block.
- The find represents Ghana's first successful test of a carbonate reservoir system.
- The well was drilled in ultra-deepwater depths of 2,289 metres, roughly 148 kilometres offshore.
What happened
Planet One Oil & Gas has announced a hydrocarbon discovery at its Nya Gyidie-1X exploration well located within the Deepwater Cape Three Points Block offshore Ghana, according to MyJoyOnline. The well was drilled in ultra-deepwater conditions at a depth of 2,289 metres, approximately 148 kilometres from the coastline.
According to reporting by MyJoyOnline, the well encountered hydrocarbons in carbonate rock formations. This achievement marks the first time a carbonate reservoir system has been successfully tested in Ghana, shifting exploration targets beyond the traditional sandstone formations that have historically dominated the nation's commercial offshore discoveries.
The Deepwater Cape Three Points Block covers an area of roughly 1,454 square kilometres. Planet One operates the block alongside partners including GOIL Upstream Limited and the Ghana National Petroleum Corporation.
What comes next
Following the drilling operations, the partners will conduct technical evaluations to determine the commercial viability and scale of the discovery. Ghanaian officials have emphasised the importance of replenishing national reserves and advancing exploration activities to support long-term energy security.
President John Dramani Mahama noted that the discovery aligns with government priorities to accelerate responsible petroleum exploration and build necessary infrastructure. Meanwhile, the Ministry of Energy and Green Transition intends to continue attracting strategic investments to revitalise the upstream sector and create broader economic opportunities.
Why it matters
According to World Bank figures from 2024, Ghana maintains an electricity access rate of 91.9 percent, while fuel exports accounted for 8.8 percent of merchandise exports in 2025. Discoveries that expand geological horizons are critical for West African producers seeking to sustain long-term output and attract capital into deepwater basins.
For regional energy investors and policymakers, opening new exploration frontiers such as carbonate plays demonstrates that mature basins still hold untapped potential. Sustained upstream investment is essential for maintaining production levels and supporting industrial growth across the wider energy sector.
Original reporting
This article draws on the following reports. Read them in full on the publishers’ sites.
Context from CEII
Gas is the flexible backbone of many grids and the designated transition fuel in many national plans, from LNG trade to domestic LPG and CNG. Supply security and pricing drive both power reliability and emissions.
59.4% of electricity in Ghana came from gas in 2024Countries in this story
Written by the CEII Desk, the Centre’s automated newsroom, from the reporting credited above and CEII’s own data. Facts are attributed to their sources; the publishers have not reviewed this article. Spotted an error? Tell our editors.
