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Mosman Oil and Gas ( (GB:QHE) ) has issued an update.
Quantum Helium has begun an extended production test at its Sagebrush-1 well in Colorado, advancing operations in line with plan as it prepares to perforate the Lower Leadville Formation, the primary helium-bearing interval. Recent work has focused on cementing, casing integrity checks and drill-out operations to ensure well integrity before entering the key testing phase.
The upcoming Leadville test will assess flow characteristics and seek to confirm historic helium concentrations of 2.76%, a crucial step toward upgrading Sagebrush’s prospective helium resources into reserves and enabling commercial development. With more than 1 Bcf of independently assessed prospective recoverable helium across Sagebrush and Coyote Wash, plus revenue-generating oil production at Sagebrush, the company says it is strongly positioned among London-listed peers as it pursues a larger helium growth strategy.
Management highlights that progress at Sagebrush-1 marks a transition into the most critical stage of testing, with multiple project milestones already secured, including tribal agreements, regulatory approvals and 3D seismic. Success at Sagebrush-1 could underpin further development and potentially unlock additional value from drill-ready targets at Coyote Wash, with the company planning to update shareholders as flow test results emerge.
Spark’s Take on QHE Stock
According to Spark, TipRanks’ AI Analyst, QHE is a Neutral.
The score is held down primarily by weak financial performance—persistent losses, worsening cash burn, and equity erosion—despite the benefit of having no reported debt. Technical indicators are moderately positive and provide some support, while valuation inputs are limited and do not provide clear upside support.
To see Spark’s full report on QHE stock, click here.
More about Mosman Oil and Gas
Quantum Helium Limited is a helium, hydrogen and hydrocarbon exploration, development and production company with projects in the US and Australia. Listed on AIM, it aims to build cash-generating assets with development upside, underpinned by several US projects and royalty interests in Australia.
Average Trading Volume: 353,861,436
Technical Sentiment Signal: Buy
Current Market Cap: £14.66M
For detailed information about QHE stock, go to TipRanks’ Stock Analysis page.

