Tanzania Confirms 223 Billion Cubic Feet Gas Discovery at Mnazi Bay

What changed

Tanzania has confirmed a 223 billion cubic feet gas discovery at the Kasa-1X ST2 well in Mnazi Bay, Mtwara.

• Tanzania’s Ministry of Energy confirmed the find.
• Maurel & Prom, the operator, expects output of up to 50 million cubic feet per day as early as November 2026.
• It is Tanzania’s first reported gas discovery since 2015.

Why it matters

The discovery puts Mnazi Bay back at the centre of Tanzania’s gas story after an 11-year gap in reported finds. If the resource proves commercially recoverable and production starts on schedule, the field could add a new source of supply with a potential output measured in tens of millions of cubic feet each day.

That timing is the key point. November is close enough to make this an immediate operational prospect, but the headline resource size alone does not guarantee commercial production. The next test is whether Maurel & Prom can turn the Kasa-1X ST2 find into sustained output of up to 50 million cubic feet per day.