Masirah Oil starts first infill well at Yumna field offshore Oman

Masirah Oil began work on the first well of its infill campaign in the Yumna field in Block 50 offshore Oman, with production from the new well expected to start in November 2026.

Masirah is an indirect subsidiary of Singapore-listed Rex International. It operates Block 50 and holds a 100% interest in the concession. Jasmine Energy holds 87.5% of the company indirectly.

The campaign has been delayed more than once. The company had said in April that drilling was expected to begin in May, and in June it left the start date open. Yumna produced first oil in February 2020.