Mahama Announces Major Offshore Hydrocarbon Discovery As Ghana Seeks To Revive Oil Industry

By: Ebenezer Adugyamfi & Emmanuel Ayiku for GhanaianNewsCanada
November 11, 2026

President John Dramani Mahama has announced a new offshore hydrocarbon discovery in Ghana, describing it as an important milestone in the country’s efforts to revive petroleum exploration, attract investment and strengthen the long-term sustainability of its oil and gas industry.

The discovery, named Nya Gyidie-1X, was made in the Deepwater Cape Three Points (DWCTP) Block in the Tano Basin, approximately 148 kilometres offshore Ghana.

The well was drilled by Planet One Oil & Gas Limited in partnership with the Ghana National Petroleum Corporation (GNPC) and GOIL Upstream Limited.

Announcing the development at the 2026 Local Content Conference and Exhibition in Takoradi on Tuesday, November 10, Mahama said the discovery represented a significant geological breakthrough for Ghana’s petroleum sector.

He explained that the well had successfully tested a Cenomanian-Turonian carbonate reservoir system as its primary exploration target, with the Albian formation serving as a secondary target.

The discovery is particularly important because it introduces a new geological exploration opportunity beyond the sandstone reservoir systems associated with Ghana’s existing commercial petroleum fields.

However, industry officials say further technical evaluation and appraisal work will be required to determine the size, characteristics and commercial viability of the hydrocarbons discovered.

Why the Nya Gyidie discovery matters

The significance of Nya Gyidie goes beyond the confirmation of hydrocarbons beneath Ghana’s offshore waters.

According to GNPC, the discovery represents the first successful test of a carbonate reservoir system in Ghana, potentially opening a new geological play for future petroleum exploration.

The well was drilled in water approximately 2,289 metres deep. Hydrocarbons were encountered in carbonate rock formations between 3,364 and 3,499 metres measured depth along the wellbore.

The distinction is important because Ghana’s existing commercial oil and gas production has largely relied on sandstone reservoir systems.

The successful identification of hydrocarbons in a different type of reservoir could encourage further exploration in areas where similar geological formations may exist.

For a country seeking to replace petroleum reserves depleted through production, the discovery provides an encouraging development.

GNPC Chief Executive Kwame Ntow Amoah said the significance of the discovery extended beyond the hydrocarbons encountered, describing it as an opportunity to explore a previously untested geological system in Ghana.

He stressed that the next priority would be to establish the discovery’s scale and commercial potential through detailed technical evaluation.

Who is behind the discovery?

The Deepwater Cape Three Points Block is operated by Planet One Oil & Gas Limited, which holds a 75 per cent participating interest.

GNPC holds a 15 per cent interest, while GOIL Upstream Limited, a subsidiary of GOIL PLC, holds the remaining 10 per cent.

The discovery is also significant for the growing participation of Ghanaian-linked companies in the country’s upstream petroleum industry.

The block was previously associated with international oil major ExxonMobil, which relinquished its interest in 2021.

Its subsequent development under a different ownership structure demonstrates the role local and independent companies can play in pursuing exploration opportunities that require substantial technical expertise and investment.

Mahama congratulated Planet One and its partners, saying the successful drilling campaign demonstrated confidence in Ghana’s petroleum prospects and the government’s efforts to reset the sector.

He also urged the Petroleum Commission to ensure that petroleum operators fulfil their exploration commitments and translate discoveries into investment, employment and economic opportunities for Ghanaians.

Ghana’s oil production shows signs of recovery

The announcement comes as the government reports an improvement in the country’s crude oil production.

Mahama disclosed that daily production had increased from approximately 88,000 barrels to more than 120,000 barrels following renewed engagement with industry partners and efforts to restore investor confidence.

The improvement is an important development for Ghana, whose petroleum sector has faced concerns over declining output and the need to attract fresh exploration capital.

However, sustaining production will require more than improving output from existing fields. Ghana must also identify new reserves, develop commercially viable discoveries and invest in the infrastructure needed to bring resources into production.

The Nya Gyidie discovery therefore comes at a time when the country is seeking to strengthen the long-term outlook of its upstream petroleum industry.

Second gas processing plant expected to save Ghana up to $1 billion annually

Beyond the offshore discovery, Mahama also highlighted developments in Ghana’s gas infrastructure.

He announced that construction had started on the country’s second gas processing plant, known as Gas Processing Plant II, at Anochi in the Western Region.

The facility is expected to reduce Ghana’s dependence on imported liquid fuels used in thermal power generation.

According to the President, the project could save the country up to US$1 billion annually once operational by increasing domestic gas processing capacity and reducing the need to rely on more expensive imported fuels.

Ghana’s existing Atuabo Gas Processing Plant currently processes approximately 120 million standard cubic feet of gas per day.

The additional facility is intended to strengthen the country’s ability to process domestic gas resources and support electricity generation.

The project is particularly important as Ghana continues to deal with the financial cost of fuel imports and the need to ensure a reliable supply of gas for its thermal power plants.

However, the projected annual savings will depend on the plant’s completion, operating capacity, gas supply and the extent to which domestic gas can replace imported fuels.

Government targets new petroleum agreements

The Mahama administration is also seeking to attract fresh investment into exploration and production.

Energy and Green Transition Minister John Abdulai Jinapor has outlined plans to conclude six new petroleum agreements by the first quarter of 2027.

The government believes new agreements could encourage exploration activity, increase investment and help replenish Ghana’s petroleum reserves.

It has also proposed changes to the country’s petroleum fiscal regime, arguing that the existing framework needs to become more competitive in attracting investors while protecting national interests.

The proposed reforms include adjustments to royalty arrangements and the state’s carried interest in petroleum agreements.

The government has indicated that it wants to create a more attractive environment for companies willing to undertake exploration in Ghana’s offshore basins.

For the country, the challenge is to strike a balance between attracting investment and ensuring that the state and its citizens receive fair value from petroleum resources.

Discovery is not yet a producing oil field

Despite the excitement surrounding the announcement, the government and GNPC have not yet published a confirmed reserve estimate or established the commercial production potential of Nya Gyidie-1X.

A discovery of hydrocarbons does not automatically mean that a commercially viable oil or gas field has been established.

Companies must undertake additional technical studies, including appraisal work, to determine how much petroleum is present, how easily it can be extracted and whether developing the resource would be economically viable.

The results will help determine whether the partners proceed towards further exploration, field development and eventual production.

The timeline for any potential commercial development has not yet been confirmed.

This distinction is important because Ghana’s experience with petroleum exploration has shown that not every discovery necessarily becomes a producing field.

A new opportunity for Ghana’s petroleum future

The Nya Gyidie discovery offers renewed optimism for Ghana’s upstream petroleum industry at a time when the country is seeking to reverse declining production, attract fresh capital and expand the role of domestic companies.

Its significance lies not only in the hydrocarbons encountered but also in the successful identification of a new geological target that could support future exploration.

Combined with the reported recovery in crude production, the construction of a second gas processing plant and plans to negotiate new petroleum agreements, the announcement forms part of a wider government effort to reposition the sector.

But the real measure of success will be whether these developments translate into commercially viable production, sustainable public revenue, local employment and lasting economic benefits.

For now, Nya Gyidie is an encouraging exploration milestone. Its ultimate value to Ghana will depend on what further technical evaluation reveals and whether the discovery can be developed responsibly and profitably.