08:46 AM EDT, 04/13/2026 (MT Newswires) -- Tethys Petroleum ( TETHF ) said Monday that its most recent reserve report for operations in Kazakhstan show the total proved and total proved + probable reserves are about the same as last year, but net present value calculations are lower, mainly due to lower oil prices.

The total proved and probable NPV using a 10% discount rate is about US$474 million, a 15% decrease when compared with the US$560 million in 2024. Total proved and probable reserves were 84,844 thousand barrels of oil equivalent (Mboe), slightly lower than 2024's 85,554 Mboe.

Tethys shares last traded on April 9, closing at $1.50, on the TSX Venture Exchange.