Ghana Secures $3.5 Billion in Offshore Upstream Investment as Tullow Oil and Kosmos Energy Plan 20 New Jubilee and TEN Wells

Ghana is set to receive its largest injection of upstream oil investment in more than five years, with a coordinated $3.5 billion commitment from operators at the country's flagship offshore fields promising to arrest a seven-year production decline and extend field life through 2040.

The investment is split across two packages. A $2 billion deal covering the Jubilee and TEN (Tweneboa, Enyenra, Ntomme) fields will fund 20 new wells and infrastructure upgrades, with Tullow Oil, Kosmos Energy, and the Ghana National Petroleum Corporation (GNPC) as the lead investors. A separate $1.5 billion commitment from Offshore Cape Three Points (OCTP) partners, which include Eni, covers production expansion and exploration of adjacent areas around the proven Sankofa discovery.

Ghana's Energy Minister John Abdulai Jinapor announced the coordinated packages at Africa Oil Week in Accra. President John Mahama addressed delegates directly, declaring: "The sector is once again open for business." Mahama pointed to recent legal reforms and a commitment to amend the 2016 Exploration and Production Act as signals that future licensing rounds will follow.

The urgency behind the announcements reflects how sharply the country's upstream output has contracted. Ghana produced 71.4 million barrels of oil in 2019. By 2024, that figure had fallen to 48.2 million barrels, a compound annual decline rate of 7.7 percent. The TEN fields have been in retreat since 2018. Jubilee, which still generates more than half of national output, peaked in 2025. Without fresh capital and new wells, analysts had projected further contraction through the end of the decade.

The current global oil price environment gives the investment strong commercial underpinning. Brent crude has averaged well above $90 per barrel through 2026, with the EIA projecting a full-year 2026 Brent average of $96 per barrel and a Q2 peak near $115, driven by Middle East supply disruptions and tighter global inventories. For West African barrels priced on Brent-linked benchmarks, the economics of infill drilling at mature fields have rarely been more favorable.

Early drilling results confirm that the reservoirs remain productive. Jubilee well J74 came online earlier in 2026 producing approximately 13,000 barrels of oil per day, lifting gross Jubilee field production above 70,000 bpd in February. The first well of a five-well 2026 campaign, J75, has been drilled and is expected to come online before the end of the first quarter. The 20-well development plan extends this trajectory through the end of the decade and is designed to add materially to proved reserves across both the Jubilee and TEN structures.

The regulatory foundation for the investment was cemented earlier this year when Ghana's parliament ratified license extensions for both Jubilee and TEN through 2040, removing a long-standing source of uncertainty that had depressed operator confidence. Tullow Oil also closed a $205 million deal to acquire full ownership of the TEN field floating production, storage, and offloading vessel (FPSO), a transaction structured to reduce annual operating costs and improve the economics of TEN production over the remaining field life.

The OCTP package brings an exploration dimension to the investment cycle that has been largely absent from Ghanaian offshore activity since 2019. While the Jubilee and TEN deals represent development capital for producing assets, the $1.5 billion OCTP commitment allows partners to probe adjacent structures around the Sankofa gas and condensate discovery, potentially adding new reserves to Ghana's offshore resource base for the first time in years.

The West African upstream revival reflects a broader global pattern of deepwater recommitments as operators prioritize high-margin barrels in a sustained high-price environment. Petrobras recently approved a $12 billion final investment decision for its Sergipe-Alagoas SEAP I project, targeting 120,000 bpd of first oil by 2030, while BP under CEO Meg O'Neill has reversed its earlier retreat from upstream hydrocarbons, redirecting capital toward oil and gas production assets.

For Ghana, the political stakes are substantial. Hydrocarbons contributed more than 10 percent of GDP growth in 2023, and a sustained upstream recovery would support government finances as the country manages a complex economic stabilization program. The absence of new licensing rounds since 2019 had compounded the production decline with a reserves replacement problem; the Mahama administration's promise of fresh licensing activity, combined with the new capital already committed, suggests the industry pause may be ending.

Hydrocarbons contributed more than 10 percent to Ghana's 2023 GDP growth. At $96 per barrel Brent, the 20-well Jubilee and TEN drilling campaign alone represents a significant step toward reversing the output losses of recent years. If the OCTP exploration program delivers commercial discoveries, Ghana could enter a new upstream growth phase not seen since the initial Jubilee ramp-up in the early 2010s.

Sources: World Oil, Ecofin Agency, Kosmos Energy, Tullow Oil.