TMK Energy’s Gas Record Sets Up Its Next Mongolia Test

September Production Reaches New Record

TMK Energy Limited (ASX:TMK) has set a new monthly gas-production record at its 100%-owned Gurvantes XXXV Pilot Well Project in Mongolia, with September output averaging approximately 872 cubic metres a day, or 30,800 standard cubic feet per day. That was an 8% increase from August’s 810m3 a day, extending the

The rate strengthened further at month-end: production averaged about 33,400 scfd during the final week. Water production remained broadly stable at approximately 425 barrels a day, while uptime was high apart from occasional short power interruptions.

Reservoir Management Supports Higher Well Rates

TMK says the improvement is being seen across multiple wells rather than only at LF-07. The company said gas continued to flow during short power outages while pumps were not operating, which it described as evidence that desorption is occurring deeper into the reservoir rather than only near the wellbore.

Chief executive Dougal Ferguson said gas production had increased more than fourfold since the revised reservoir management plan began in August 2025. The company says the experience has produced no pump blockages for 14 months, with water production remaining relatively stable. Those observations will inform the planned development approach, although the current results remain at pilot-project scale rather than confirmed commercial production.

Workover and LF-08 Drilling Program Mobilises

Long-lead equipment for the 2026 Work Program has started arriving at site, despite delays at border crossings. The workover rig is being mobilised this week, with idle well LF-03 expected to be its first assignment. The program was refocused in July to combine optimisation of the new LF-08 production well with lower-cost re-completions of existing wells.

The drilling rig for LF-08 is undergoing minor repairs at Major Drilling’s yard in Ulaanbaatar and is expected to move to site in the coming weeks, after the workover rig mobilisation is complete. The timing of the field campaign will therefore depend partly on equipment delivery and the completion of those repairs, rather than production performance alone.

Gas-to-Power Decision Due Before October Ends

TMK’s Gas to Power Project with Dashvaanjil Group remains on track, subject to final commercial arrangements and investment decisions by both partners before the end of October. The project follows the earlier

Recent meetings with Mongolia’s regulator, ministry and potential gas offtake partners reinforced, according to TMK, the country’s stated interest in developing coal seam gas to improve energy independence and security. The immediate test is whether the stronger pilot production can translate into a completed LF-03 workover, productive LF-08 drilling and an investment decision for the power project on the stated timetable.