Mamba Northeast

Location and Geology

• The Mamba Northeast gas field is situated in Area 4 of the Rovuma Basin, approximately 50 kilometers off the Cape Delgado coast of Mozambique.
• The field lies in water depths of around 1,848 meters (6,063 feet) and reaches a total depth of 4,560 meters.

Discovery and History

• The Mamba Northeast field was discovered in 2012, following earlier discoveries in the Mamba Complex, including Mamba South in 2011 and Mamba North in 2012.

Ownership and Partners

• The project is operated by Mozambique Rovuma Venture, a consortium that includes Eni East Africa SpA, which holds a 70% interest in Area 4. Other partners include China National Petroleum Corporation (CNPC), Empresa Nacional de Hidrocarbonetos EP (ENH), Exxon Mobil, Galp Energia SGPS, and Korea Gas (KOGAS).

Reserves and Production

• The Mamba Complex, which includes Mamba Northeast, Mamba North, and Mamba South, is estimated to hold approximately 75 trillion cubic feet (tcf) of gas in place.
• Production from the Mamba Northeast field is expected to start in 2028 and is forecast to peak in 2040. The field is anticipated to continue production until it reaches its economic limit in 2078.

Development and Infrastructure

• The project is currently in the approval stage, with the Final Investment Decision (FID) expected to be approved in 2025.
• The development involves the use of subsea wells and infrastructure. For the broader Rovuma LNG project, which includes the Mamba Complex, 21 subsea wells are planned to be fed to LNG trains via four flow lines.
• The Rovuma LNG project, led by ExxonMobil, will utilize gas resources from the Mamba Complex and the Coral South project to produce 15.2 million tons of LNG per year.

Contractors and Stakeholders

• Key contractors involved in the project include The ERM Group, Impacto, and Projectos e Estudos Ambientais.
• Other stakeholders include the government of Mozambique and various international energy companies involved in the consortium.

Economic and Financial Aspects

• The development of the Mamba offshore gas project is estimated to cost approximately $50 billion.

Production Profile

• The Mamba Northeast field, as part of the larger Mamba Complex, will contribute to the overall production profile of Area 4. The Rovuma LNG project aims to commercialize 21.7 tcf of the estimated 85 tcf of gas reserves in Area 4.

In summary, the Mamba Northeast gas field is a critical component of the larger Mamba Complex and the Rovuma Basin gas developments, marking one of the world's biggest offshore gas projects with significant reserves and a long-term production outlook.