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Sagebrush Resource Update

Quantum Helium Limited has updated its net resource figures for the Sagebrush Helium Project in Colorado, increasing its working interest from 82.5% to 90%. This adjustment results in revised net prospective resources, with the 2U (best estimate) now standing at 101 MMscf for Helium and 825 MMscf for Hydrocarbon Gas. The company also reported 1,473 MMscf for CO2 and 3,631 MMscf for Total Raw Gas at the 2U estimate. The underlying gross volumes remain unchanged from the Sproule ERCE independent evaluation dated September 18, 2025. Additionally, the high-resolution 3D seismic program at Sagebrush is progressing well and is expected to be substantially completed this week, with initial processed outputs anticipated in January. Disclaimer*

articleQuantum Helium LimitedDecember 15, 20255/company/quantum-helium-limited/news/sagebrush-resource-update
Sagebrush Resource Update

About this update from Quantum Helium Limited

[{"type":"text","content":"\n\n\n \n15 December 2025\n \nQuantum Helium Limited\n(\"Quantum\" or the \"Company\")\n \n \nQuantum Updates Resources at Sagebrush Following Increase to Working Interest\nQuantum Helium Limited (AIM: QHE), advancing helium, hydrogen and hydrocarbon projects in the USA, provides updated net resource figures for the Sagebrush Helium Project in Colorado following the increase in its working interest from 82.5% to 90%, as announced on 11 December 2025.\nThe underlying gross volumes remain unchanged from the Sproule ERCE independent evaluation announced on 18 September 2025 under SPE PRMS Standard (*), with Quantum's higher working interest now reflected in the revised net figures.\nUpdated Net Prospective Resources - Sagebrush\n(Net After 16.67% Royalty, Net to Quantum at 90% WI)\nSource of gross resource data: Sproule Sagebrush Resource Evaluation Report (18 September 2025).\nHelium (MMscf)\n\n\n\n\nEstimate\n\n\nGross Helium\n\n\nNet After Royalty\n\n\nNet to Quantum (90% WI)\n\n\n\n\n1U\n\n\n80\n\n\n67\n\n\n60\n\n\n\n\n2U\n\n\n134\n\n\n112\n\n\n101\n\n\n\n\n3U\n\n\n269\n\n\n224\n\n\n202\n\n\n\n\n \nHydrocarbon Gas (MMscf)\n\n\n\n\nEstimate\n\n\nGross Hydrocarbon Gas\n\n\nNet After Royalty\n\n\nNet to Quantum (90% WI)\n\n\n\n\n1U\n\n\n661\n\n\n551\n\n\n496\n\n\n\n\n2U\n\n\n1,101\n\n\n917\n\n\n825\n\n\n\n\n3U\n\n\n2,218\n\n\n1,848\n\n\n1,663\n\n\n\n\n \n \nCO₂ (MMscf)\n\n\n\n\nEstimate\n\n\nGross CO₂\n\n\nNet After Royalty\n\n\nNet to Quantum (90% WI)\n\n\n\n\n1U\n\n\n1,161\n\n\n968\n\n\n871\n\n\n\n\n2U\n\n\n1,964\n\n\n1,637\n\n\n1,473\n\n\n\n\n3U\n\n\n3,899\n\n\n3,249\n\n\n2,924\n\n\n\n\n \nTotal Raw Gas (MMscf)\n\n\n\n\nEstimate\n\n\nGross Total Gas\n\n\nNet After Royalty\n\n\nNet to Quantum (90% WI)\n\n\n\n\n1U\n\n\n2,906\n\n\n2,422\n\n\n2,180\n\n\n\n\n2U\n\n\n4,842\n\n\n4,034\n\n\n3,631\n\n\n\n\n3U\n\n\n9,760\n\n\n8,133\n\n\n7,320\n\n\n\n\n \nSagebrush Seismic Acquisition Update\nThe high-resolution 3D seismic programme at Sagebrush continues to progress very well. Field crews have maintained strong productivity throughout the past week, with data recording and receiver retrieval proceeding smoothly, and overall acquisition now well advanced.\nBased on current progress, the Company expects the seismic survey to be substantially completed by the middle of this week, after which the ...

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