Natural hydrogen has reemerged as a niche but closely watched segment of the energy transition, driven by the prospect of bypassing electrolyzer costs that still dominate green hydrogen economics.
In February 2026, Thor Energy plc and H2EX Ltd secured two Regulated Substance Exploration Licence Applications covering 4,123 square kilometers in the onshore Otway Basin, formalizing a 50:50 joint venture focused on natural hydrogen and helium. The move highlights a growing willingness among explorers to reassess mature basins as potential contributors to low carbon supply chains rather than legacy hydrocarbon provinces.
The Otway Basin is not an untested frontier. Drilling activity dates back to 1915, when the Robe 1 well recorded hydrogen concentrations of approximately 25.4 percent in gas logs, according to historical government records later compiled by Alexander in 2023. Similar hydrogen shows have been documented across the Cooper, Eromanga, and Yorke Peninsula basins, yet these occurrences were largely sidelined during decades of oil and gas focused exploration. The renewed interest reflects a shift in priorities rather than a sudden geological discovery.
Thor Energy’s management has framed the new licenses as a logical extension of insights gained from its HY Range project. The technical approach relies heavily on reprocessing vintage seismic data, revisiting well logs, and applying basin modeling to identify potential hydrogen generation mechanisms such as serpentinization and radiolysis. While these processes are well documented in academic literature, their commercial relevance remains uncertain, particularly when it comes to sustained flow rates and recoverable volumes. The reliance on existing datasets reduces early stage exploration costs but does not eliminate subsurface risk.
Infrastructure considerations are central to the project’s rationale. The onshore Otway Basin benefits from proximity to existing pipelines and energy infrastructure in South Australia and Victoria, which could lower barriers to early commercialization if viable accumulations are confirmed. However, natural hydrogen development faces regulatory and market uncertainties, including specifications for blending, storage, and end use that remain underdeveloped compared with conventional gas markets.
The inclusion of helium alongside hydrogen reflects a pragmatic portfolio strategy. Helium demand continues to be supported by semiconductor manufacturing, medical imaging, and aerospace applications, where supply disruptions have exposed the fragility of global markets. For Thor Energy, which already holds assets in uranium, copper, gold, and rare earths, the Otway licenses add optionality rather than a single commodity bet. This diversification may help buffer price volatility, but it also risks diluting strategic focus if exploration priorities compete for capital.
From a regional perspective, the project could stimulate limited near term economic activity through seismic surveys, environmental assessments, and exploratory drilling. The reuse of legacy well pads and access roads may reduce surface impacts, yet any transition to production would still require regulatory approvals, community engagement, and proof that natural hydrogen can be extracted at costs competitive with alternative low carbon fuels.
