Ghana, Tullow Agree Settlement Roadmap for US$393m Tax Liability After Landmark Arbitration Win

President John Dramani Mahama announced Tuesday that Ghana has reached a settlement arrangement with Tullow Ghana Limited over a US$393.09 million tax liability confirmed by an international arbitration tribunal, ending months of uncertainty over how one of the country's largest petroleum producers would satisfy the judgment while continuing to operate its offshore assets.

Speaking at the 2026 Local Content Conference and Exhibition in Takoradi, Mahama said both parties had agreed on how to implement the September 22 International Chamber of Commerce (ICC) award while keeping operations at the Jubilee and Tweneboa-Enyenra-Ntomme (TEN) fields running . No specific terms, payment schedules, or instalment dates were disclosed.

The Dispute: Insurance Payouts and a Doubled Penalty

The case centred on US393,091,993.70 .

Tullow had argued that taxing the insurance proceeds violated the stabilisation clauses embedded in its petroleum agreements with Ghana. The ICC tribunal, chaired by Albert Jan van den Berg, dismissed that challenge in full, finding no breach of the agreements and holding that the penalty fell outside the contracts' protections . The tribunal also confirmed the assessment was not time-barred and that the Ghana Revenue Authority's enforcement action was lawful .

The ruling triggered a sharp selloff in Tullow's London-listed shares, which fell as much as 52 per cent in a single session . The company said at the time it was "disappointed" and would consider next steps after further engagement with the government.

A Delicate Balance: Revenue Recovery vs. Operational Continuity

Finance Minister Dr Cassiel Ato Forson had signalled in late September that the government would enforce the award under Ghanaian law while taking into account "the continuity of operations in the Jubilee and TEN fields and Tullow's capacity to sustain the investments required" . He also indicated that talks with Tullow would extend to a separate, unresolved dispute over disallowed loan-interest deductions .

The settlement roadmap announced Tuesday appears to formalise that approach. Tullow has not issued a separate statement on the arrangement.

A Broader Reset in Ghana's Upstream Sector

Mahama's announcement came at the same Takoradi forum where he disclosed a new offshore gas and condensate discovery at the Nya Gyidie-1X well in the Deepwater Cape Three Points contract area, describing it as Ghana's first successful test of a Cenomanian-Turonian carbonate play . He also cited US$2 billion in fresh investment commitments from the Jubilee and TEN partners following the extension of their petroleum licences to 2040 .

That extension, ratified by Parliament in July 2026, secured Tullow's long-term operating position and included revised gas supply terms, with an escalating price of $2.50/mmbtu through the extended period . The investment commitment covers up to 20 additional wells in the Jubilee field .

The tax settlement and the licence extension together represent a significant de-risking of the relationship between Ghana and its most important upstream operator—one that had been strained by the arbitration and the earlier uncertainty over fiscal terms.

What Remains Unclear

The government has not disclosed whether Tullow will pay the full US$393 million upfront, in instalments, or through some other mechanism. Nor has it specified how the settlement interacts with the separate loan-interest dispute, which remains unresolved.

For Tullow, the arrangement removes a substantial near-term balance-sheet threat at a time when the company has consolidated its portfolio around Ghana following disposals in Gabon, Equatorial Guinea, Kenya, and Côte d'Ivoire . For Ghana, it secures a confirmed revenue claim without disrupting the production and gas supply that underpin domestic energy security.

The true test of the roadmap will be whether it delivers both objectives—cash to the state and continuity for the operator—without a return to arbitration.

Key Facts:

· Liability: US196.5m tax + 100% penalty)

· Arbitration: ICC tribunal, London, award dated September 22, 2026

· Underlying issue: Tax on business interruption insurance proceeds, 2016–2019

· Announcement: President Mahama, Local Content Conference, Takoradi, November 10, 2026

· Separate unresolved matter: Disallowed loan-interest deductions

· Operational context: Jubilee and TEN licences extended to 2040; US$2bn investment commitment