Nigeria SLE - African Intelligence29 Jan 2026 07:52
Irish junior San Leon Energy attempts to recover OML 18
After months of negotiations with the junior Midwestern over ownership of the block south of Port Harcourt, the company led by Oisin Fanning has filed an appeal with the Nigerian courts. It hopes to recover part of the coveted oil field.
Published on 27/01/2026 at 05:40 GMT Reading time 3 minutes
The chairman of junior oil company San Leon Energy, Irishman Oisín Fanning, hopes to finally see the outcome of a saga involving debts, share transfers and broken promises surrounding the valuable OML 18 oil block. Initially scheduled for December 2025, the hearing of his case by the High Court in Lagos will take place on 27 January. Since 2024, the London-based businessman has been seeking repayment of $140m in unpaid debt securities guaranteed by Nigerian company Midwestern Oil & Gas Co.
Fanning acquired this debt, then valued at $175m, in 2015 from the British fund Toscafund Asset Management, led by Martin Hughes. The debt had enabled Midwestern Oil & Gas to buy out the third party, Eroton Exploration and Production Co, which owned 27% of the onshore oil block in question, located in the Niger Delta. As collateral, Midwestern guaranteed repayment of this debt and pledged the shares of Eroton's parent company, Mart Western Energy.
After attempting in 2022 to transform Eroton's complex ownership structure – which would have allowed it to be absorbed into San Leon Energy – and after several payment postponements, Fanning finally turned to the courts when Midwestern's new management refused to honour its commitments. According to the complaint filed on 27 November 2025, a copy of which was seen by Africa Intelligence, the Irish company is seeking to confirm the transfer of 9,642,857 shares in Mart Western Energy to its benefit and to prevent Midwestern from interfering with its right to recover the remaining 357,142 shares. It also hopes to appoint a new board of directors to head Mart Western Energy, whose sole role is to hold 50% of Eroton. When contacted by Africa Intelligence, Midwestern declined to comment.
27,000 barrels
For Fanning, the Nigerian court's ruling is all the more crucial given that on 13 January, an Irish judge refused to grant San Leon Energy the right to suspend a winding-up petition filed by oil services company Brightwaters Energy. The latter is claiming payment for a debt of $16.65m, which it believes is guaranteed by the Irish company on behalf of the Maltese entity Energy Link Infrastructure (ELI), of which San Leon is a shareholder. Brightwaters Energy had been commissioned by ELI to build a pipeline to export crude oil from OML 18.
Although the Irishman was unable to prevent Brightwaters Energy from obtaining the right to seek the liquidation of San Leon Energy, he hopes to secure the future of his company by recovering half of Eroton, and thus approximately 15% of the oil block. The block, jointly owned by the Nigerian National Petroleum Co (NNPC, 5