Rex International Holding Limited announced on Feb, 05 2026 that an independent summary qualified person’s report covering the Yumna Field in Block 50 Oman has been completed by Exceed Torridon Limited.

The report updates the company’s previous reserve estimates as of Dec, 31 2025, incorporating additional planned development wells. Gross 1P reserves attributable to the licence are now 5.80 MMstb, while 2P and 3P reserves stand at 7.20 MMstb and 8.15 MMstb, respectively.

On a net entitlement basis to Masirah Oil Limited (MOL), a subsidiary in which Rex International indirectly holds an 87.5 percent interest, 1P reserves increased to 4.36 MMstb, 2P reserves to 4.93 MMstb and 3P reserves to 5.36 MMstb. The changes reflect production to date, reserve maturation and updated volumetric analysis.

The Yumna Field has produced approximately 9.6 MMstb to Dec, 31 2025. Economic cut-off dates for the 1P, 2P and 3P cases are projected for Mar, 2030; Aug, 2030; and Jan, 2031, respectively.

The report was reviewed and approved by independent qualified person Stephen Hayhurst, who confirmed compliance with Singapore Exchange Practice Note 6.3. Rex International’s board stated that, to its knowledge, the disclosed information is accurate and not misleading.