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D3 Energy Limited has commenced drilling at Nooitgedacht in South Africa's Free State Province, spudding the first of two wells aimed at evaluating reservoir deliverability and obtaining further helium and methane concentration data. The NGT245 E well is located within the company's fully owned ER315 permit, about 43 kilometres north of Bloemskraal. This drilling programme is a strategic move to grow the company's reserve base and convert exploration rights into production rights. It builds on the company’s prior successful drilling efforts and historical flow test results from the nearby Nooitgedacht Major borehole, which recorded helium levels of 5.6% and methane at 83.2% during testing in January 2025.
Key Points
- D3 Energy Limited (ASX:D3E) has spudded the NGT245 E well at Nooitgedacht in the Free State, onshore South Africa
- The well targets the Witwatersrand formation to evaluate reservoir deliverability and measure helium and methane concentrations to support reserve expansion
- Drilling and completion of NGT245 E is budgeted at approximately A$200,000, with production testing planned following successful gas intersection
- The programme supports the company’s Production Right application accepted for processing by Petroleum Agency SA, aiming to convert exploration rights to production rights
- D3 Energy operates a 479,409-acre land position in South Africa’s Free State Province and has expanded into Australia with helium and hydrogen permits in the Arckaringa Basin
NGT245 E Well Drilling Begins at Nooitgedacht Targeting Witwatersrand Formation
D3 Energy has initiated drilling of the NGT245 E well at Nooitgedacht, marking the start of a two-well appraisal programme within the ER315 permit in South Africa’s Free State Province. Positioned roughly 43 kilometres north of Bloemskraal, the well site lies along the Homestead Fault within the Virginia Fault structural corridor, which hosts the company’s certified reserves and contingent resources. This location supports the company’s Production Right application lodged with South African authorities.
The drilling will be conducted by the same contractor responsible for D3 Energy’s initial successful drilling programme, ensuring operational continuity and technical expertise. The second well, NGT245 D, is planned as part of this appraisal effort. Both wells are near the previously tested Nooitgedacht Major historical borehole, which produced an average flow rate of 95 Mscfd with helium concentrations of 5.6% and methane at 83.2% during the January 2025 production test, confirming the area’s prospectivity.
Reservoir Deliverability and Gas Concentration Testing Objectives
The NGT245 E well aims to assess faulting and fractures within the Witwatersrand formation to evaluate reservoir deliverability. The programme will collect critical data on helium and methane concentrations to enhance understanding of the ER315 resource base. Upon successful gas intersection, production testing will be conducted to inform development potential, well interference, and optimal spacing decisions.
Results will support future drilling strategies and additional Production Right applications to South African authorities, aligning with D3 Energy’s strategy to expand reserves and convert exploration rights to production rights. Helium concentrations up to 8% have been independently verified within ER315, positioning Nooitgedacht as a highly prospective helium province.
Drilling Budget and Financial Overview for NGT245 E
The company has allocated approximately A$200,000 for drilling and completing the NGT245 E well, reflecting a measured approach to appraisal drilling. This budget covers well construction, completion, and initial formation characterisation necessary for production testing. Employing an experienced contractor who previously completed drilling operations supports confidence in budget management and technical execution.
This investment forms part of D3 Energy’s broader commitment to the ER315 permit, which currently has a Production Right application under review by Petroleum Agency SA. The company’s disciplined capital allocation focuses on expanding reserves and securing regulatory approvals to enhance shareholder value.
Progress on Production Right Application and Regulatory Developments
D3 Energy’s Production Right application for ER315 was accepted for processing by Petroleum Agency SA last year, marking a key milestone toward commercial development. The application covers 15% of ER315 and about 9% of the company’s total exploration acreage. The remaining land, including the adjacent ER386 permit, forms the company’s broader appraisal and development pipeline. Data from the NGT245 E drilling and production testing will strengthen the technical case for this and future Production Right applications.
Managing Director and CEO David Casey highlighted that spudding the first well advances the company’s methodical appraisal of ER315, expanding reserves northward and supporting conversion of exploration rights to production rights. The drilling programme continues to build the technical foundation required by South African petroleum authorities, with regulatory acceptance of the Production Right application providing a positive development pathway.
Historical Borehole Data Validates Nooitgedacht’s Prospectivity
The Nooitgedacht Major historical borehole provides a solid technical basis for current drilling. Its January 2025 production test showed an average flow of 95 Mscfd with helium at 5.6% and methane at 83.2%, demonstrating the Witwatersrand formation’s commercial gas potential. The proximity of NGT245 E and NGT245 D wells to this borehole enables direct comparison of results and assessment of spatial variability in gas quality and deliverability across the fault-hosted fractured system.
While the 5.6% helium concentration is slightly below the independently verified maximum of 8% elsewhere in ER315, it remains attractive in the global helium market context. The high methane concentration adds value to the gas stream, positioning Nooitgedacht as a promising area for commercial development within D3 Energy’s portfolio.
Extensive Land Holdings and South African Operations
D3 Energy controls a substantial 479,409-acre land position across South Africa’s Free State Province, including the flagship ER315 permit, production right PR016, exploration right applications ER386, ER391, ER392, ER393, and Technical Cooperation Permit TCP273. ER315 has yielded independently verified helium concentrations of up to 8% and is the focus of the current Production Right application.
The contiguous ER386 permit lies within the same Virginia Fault structural corridor as ER315, enabling operational synergies and leveraging technical insights. This extensive land portfolio positions D3 Energy as a major player in South African petroleum exploration with multiple avenues to grow reserves and convert exploration rights to production rights as regulatory and technical conditions mature.
Expansion into Australia’s Arckaringa Basin for Helium and Hydrogen
Complementing its South African operations, D3 Energy has expanded internationally by acquiring helium and hydrogen permits in Australia’s Arckaringa Basin. This diversification enhances exposure to critical gases while maintaining focus on advancing ER315 toward development. The Arckaringa Basin is an emerging helium exploration frontier, with D3 Energy well positioned to capitalize on growing global helium demand.
This dual-geographic strategy aligns with global energy transition trends, emphasizing helium supply security and hydrogen’s role as an energy vector. The Australian permits offer growth optionality while South Africa remains the near-term development priority, reflecting management’s commitment to building a diversified international helium and natural gas exploration company.
Management Insights on Strategic Development
CEO David Casey described the spudding of NGT245 E as a significant step in D3 Energy’s systematic appraisal of ER315. The drilling programme aims to extend the reserve base northward and support the conversion of exploration rights to production rights through a disciplined, staged development approach. Each drilling phase is designed to generate technical data essential for regulatory approvals and capital planning.
Casey emphasized that the programme builds the technical foundation for developing ER315, regarded as one of the world’s most compelling helium provinces. The Production Right application’s acceptance last year frames the current drilling as a logical progression toward commercial production. While no forward guidance on timelines or reserve additions was provided, the focus remains on technical and regulatory groundwork.
Upcoming Milestones and Investor Watchpoints
Investors will monitor the completion of NGT245 E drilling and subsequent production testing, which will yield vital data on reservoir deliverability and gas composition in the Witwatersrand formation. These results will guide well spacing, interference management, and future Production Right applications. The drilling and testing of the second well, NGT245 D, will also be critical to understanding reservoir variability.
The regulatory review of the existing Production Right application remains a key focus, with approval representing a major de-risking event. Future Production Right submissions, informed by appraisal results, will signal progress toward commercial operations. Additionally, market participants may track updates on the Arckaringa Basin permits and the status of exploration right applications ER391, ER392, and ER393 in South Africa.
