Marginal Energy, Sierra Leone Sign $225m Offshore Oil Agreement

Thursday, April 23, 2026

Sierra Leone said on Thursday it had signed a petroleum licence agreement with Nigeria‑based Marginal Energy Limited, granting the company offshore exploration and production rights as the government seeks to revive interest in its under‑explored upstream sector.

  • The licence, signed through the Petroleum Directorate of Sierra Leone (PDSL), covers offshore blocks G‑145, G‑146, G‑147, G‑160 and G‑161, spanning about 6,800 square kilometres, according to a government statement.

  • Marginal Energy, a Nigerian independent, has committed to a seismic and drilling programme with exploration spending expected to exceed $225 million.

  • Under the agreement, the state will hold a 10% carried interest in oil projects and 5% in gas during exploration and development, with an option to acquire an additional participating interest on a paid basis of up to 9% once production begins.

  • The deal was signed at the Invest in African Energy conference in Paris, where Sierra Leone has been promoting offshore licensing opportunities to international investors.

  • Sierra Leone is preparing a new offshore licensing round using fresh seismic data to rekindle exploration interest in its frontier basin.

  • Sierra Leone President Julius Maada Bio said the agreement reflected the government’s commitment to developing petroleum resources while delivering national benefits, according to the statement.

(Reuters)

Categories: Industry News Activity Sierra Leone Offshore Oil Nigeria

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