Ghana has formally triggered an international arbitration process against Togo over a contested maritime boundary in the Gulf of Guinea, ending eight years of failed bilateral negotiations with a decision that carries significant implications for offshore oil exploration, fisheries rights, and the diplomatic standing of both West African neighbours.
The government confirmed on Friday, February 20, 2026, that it had served Togo with official notice of its intention to pursue delimitation of the maritime boundary through arbitration under the United Nations Convention on the Law of the Sea (UNCLOS), the global legal framework governing maritime rights, territorial waters, and resource entitlements.
The two countries had established a Joint Maritime Boundary Technical Committee comprising technical experts from both sides to define an acceptable line. But successive rounds of negotiations collapsed over differences in methodology, baseline coordinates, and the interpretation of nautical charts. Togo also raised concerns about the presence of Ghanaian naval vessels in contested waters while talks were ongoing. Ghana proposed a formal demarcation line in 2021 but Togo rejected it.
The practical flashpoint that accelerated the breakdown came between December 2017 and May 2018, when Togo stopped two Ghanaian seismic survey vessels from acquiring deep-sea data in waters approaching the contested boundary, in a dispute rooted in competing claims over offshore petroleum exploration rights.
In a statement signed by Presidential Spokesperson and Minister for Government Communications Felix Kwakye Ofosu, Accra framed the arbitration filing as a measure to protect bilateral relations rather than damage them. “Ghana has taken this step in order to avoid an escalation of incidents that have created tensions between some of our institutions and to promote an amicable resolution, thereby contributing to the continued good relations between our two countries,” the statement read.
The move mirrors Ghana’s previous use of international adjudication to resolve its maritime boundary dispute with Côte d’Ivoire, which was referred to a Special Chamber of the International Tribunal for the Law of the Sea (ITLOS) and decided in Ghana’s favour in 2017. That precedent suggests Accra is comfortable operating within formal multilateral legal processes and regards binding arbitral rulings as preferable to open-ended political negotiations.
The UNCLOS arbitration process is expected to take several years, during which both countries will present legal and technical arguments, including hydrographic data, historical claims, and prior treaties, to an international tribunal. The process operates under Annex VII of UNCLOS, which provides for compulsory and binding dispute settlement when parties cannot agree through direct negotiation.
The stakes are substantial. Maritime boundary demarcation in the Gulf of Guinea directly governs which country has the right to license offshore exploration blocks, regulate artisanal and commercial fishing, and exercise jurisdiction over maritime security operations. For Ghana, whose offshore oil industry underpins a significant share of government revenue, clarity over the eastern maritime boundary removes a source of investment uncertainty that has lingered for nearly a decade.
