Tullow Oil has reported steady operational performance in the first half of 2025 across its Ghanaian assets, highlighting its continued strategic focus on efficiency, production growth, and long-term investment in the country’s oil and gas sector.
The company stated that operational efficiency across its Ghana offshore facilities remained high, with average facility uptime reaching 97 percent.
This, combined with ongoing drilling and gas lift improvements, enabled the Jubilee and TEN fields to sustain average daily net oil production of approximately 32,800 barrels per day and gas output at 6,200 barrels of oil equivalent per day.
“Gross oil production from the Jubilee field averaged 60.9 kbopd (net: 23.7 kbopd) in the first half of the year, inclusive of a 15-day planned maintenance shutdown conducted safely and on budget.”
Tullow Oil
Despite challenges from higher-than-anticipated water cuts in some wells, particularly on the eastern flank of the field, the company has managed to stabilise production through targeted technical interventions.
The company disclosed, “Riser base gas lift has now been introduced on the east side of the field, which restored and stabilised production in June,” adding that a similar system for the western side has been sanctioned and will be implemented over the coming years to further enhance output and reserves recovery.
While water injection levels dipped during the first half due to prolonged maintenance and a fault with the seawater lift system, Tullow expressed confidence in restoring injection rates to their full capacity of 300,000 barrels of water per day in the second half of the year.
Enhanced water injection is seen as critical to maintaining reservoir pressure and mitigating production decline.
One of the standout achievements of the period was the successful delivery of the J72-P well, which exceeded expectations in terms of reservoir quality and net pay.
The well was brought onstream in July and is expected to contribute significantly to second-half output.
Drilling Resumes Q4
Looking ahead, Tullow confirmed that drilling operations will resume in the fourth quarter following a maintenance break.
“The next well is planned to be a Jubilee producer (J73-P), to come onstream around the end of the year.
“A further four firm Jubilee wells are then planned for 2026.”
Tullow Oil
Processing of a recently acquired 4D seismic survey is currently underway and will guide drilling locations for the upcoming wells.
Furthermore, an advanced Ocean Bottom Node (OBN) seismic survey, scheduled for later this year, will provide deeper reservoir insights for both the Jubilee and TEN fields.
At the TEN developments, performance has also exceeded expectations. Gross oil production averaged 16,400 barrels per day in the first half, with net production to Tullow at 9,000 barrels per day.
The boost was supported by the reopening of a previously shut-in interval at the Enyenra field and targeted water injection optimisation efforts.
The company also highlighted a significant environmental achievement with the replacement of the flare tip on the TEN FPSO in May.
This upgrade has enabled a further 50 percent reduction in routine gas flaring from July onward, reinforcing Tullow’s efforts to minimise emissions in line with global sustainability standards.
Beyond its technical milestones, Tullow emphasised the importance of a recently signed Memorandum of Understanding (MoU) between the company and the Government of Ghana concerning the extension of the West Cape Three Points (WCTP) and Deepwater Tano (DWT) licences.
According to Tullow, “the MoU outlines key principles that will guide the continued development of Jubilee and TEN through to 2040.”
The agreement includes provisions to increase the supply of gas from current levels of around 100 million standard cubic feet per day (mmscf/d) to 130 mmscf/d, reflecting the government’s focus on domestic energy security.
A reduced gas price for Jubilee associated gas and a guaranteed reimbursement mechanism for gas sales are also part of the arrangement, which Tullow described as a vital step in supporting Ghana’s power generation capacity.
Most notably, the agreement grants the company and its joint venture partners the right to drill up to 20 additional wells in Jubilee over the life of the licences.
This expanded development programme is expected to attract up to $2 billion in new investment into the Ghanaian economy.
“The licence extensions to 2040 unlock long-term opportunities for Tullow and its partners, enabling a material increase in gross 2P reserves and reinforcing our commitment to Ghana as a strategic energy partner.”
Tullow Oil
With robust operational results, proactive technical interventions, and ambitious long-term investment plans, Tullow Oil’s latest performance update underscores its central role in Ghana’s upstream oil and gas sector and its alignment with the country’s broader energy and economic development objectives.
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