H3 Energy Limited · ASX:H3E
H3 Energy — Whitebark Energy — NH2A Conference October 2025
20 slides from H3 Energy's conference presentation, Oct 22, 2025
Slide 1: The Hydrogen Potential of the Officer Basin – Waking a sleeping Giant?
The Hydrogen Potential of the Officer Basin – Waking a sleeping Giant? Tuesday 22nd October 2025 Nik Sykiotis – COO (Whitebark Energy), Mark Partington (Consultant), Mick Small (Exploration and Energy Consultants), Stuart King (SK Geoscience & Exploration), Slide 1 Krista Davies (Cryptid Energy Cons
Slide 2: Disclaimer
Disclaimer No representation or warranty, expressed or implied, is made by Whitebark Energy Ltd that the material contained in this presentation will be achieved or prove to be correct. Except for statutory liability which cannot be excluded, Whitebark Energy, their officers, employees and advisers
Slide 3: Value Opportunity Highlights
VALUE OPPORTUNITY HIGHLIGHTS Fuelling Australia’s Energy Future The 3H Strategy - Delivering White Hydrogen, Natural Helium and Hydrocarbons to support the Energy Transition All hydrogen, helium and hydrocarbon, play elements are proven present in the company’s Officer Basin assets. Direct hydrogen,
Slide 4: Alinya Project
Alinya Project • PEL 81 & 253 cover ~20,000km2 of the Neoproterozoic Officer Basin in central Australia. Mulyawara 1 Coober Pedy • The licenses are located 250km west of Coober Pedy and Kutjara 1 350km northwest of Ceduna. • Access is via the Stuart Hwy and the Anne Beadell Hwy from Coober Pedy – th
Slide 5: White Hydrogen & Helium
WHITE HYDROGEN & HELIUM Delivering White Hydrogen & Helium Geologic fundamentals for white hydrogen and natural helium are proven and present. 1. Abiotic source rocks for both white hydrogen and natural helium are present – significantly the uranium / thorium / iron rich, Hiltaba granite (likely sou
Slide 6: Alinya Project – Rickerscote Prospect, Pindyin Sst. Objective
Alinya Project – Rickerscote Prospect, Pindyin Sst. Objective Trap and Seal Mulyawara 1 Kutjara-1 is ~170km to the West of the Rickerscote Prospect Kutjara 1 N Excellent top Near top Pindyin Fm. depth grid (mSRD) and cross- fault seal S N Kutjara-1 GR Alinya Salt Alinya Salt Alinya Mudstone Alinya M
Slide 7: The Centralian Super Basin has many Hydrogen and Helium Shows
The Centralian Super Basin has many Hydrogen and Helium Shows Mt Kitty Gas Analysis salt seal with poor reservoir Officer Basin Centralian Super Basin Source: Boreham et al 2021. Notice Officer Basin is missing!
Slide 8: Potential for substantial natural hydrogen accumulations identified in the Literature
Potential for substantial natural hydrogen accumulations identified in the Literature • Natural H2 potential of the ancient central Australian Basin Identified by Ballantyne et al (2025) in their recent paper • Primary mechanism for Rickerscote and the Officer Basin is radiogenic granites with radio
Slide 9: Gawler Craton H2 source rocks. Basement intercepts & outcrop, Eastern Officer Basin
Gawler Craton H2 source rocks. Basement intercepts & outcrop, Eastern Officer Basin Officer Basin Rickerscote Prospect PEL 81 License block Sheared mafic volcanic of the Devils Playground Volcanics in drillhole DP-1 Arckaringa Basin Mgj6 Mg Hiltaba Suite Lake Maurice West 226Ra on playa lake surface
Slide 10: Seal; Wells intercepting Salt in the Officer Basin
Seal; Wells intercepting Salt in the Officer Basin ❑ The stable hydrogen isotopic composition of H2 Australian gases are highly depleted in 2H, which suggests an abiogenic source. ❑ White Bark Energy is the only company targeting large pre salt traps, with potential large volumes of natural H2 & He
Slide 11: Reservoir Seal Pair; Alinya Seal
Reservoir Seal Pair; Alinya Seal Alinya Project – Rickerscote Lead, Mulyawara Objective (750-770Ma radiometric age) • The Pindyin / Alinya Mudstone Formations are the deepest Reservoir / Seal combination in the Neoproterozic. There are sufficient (deep) well intercepts (3) and seismic lines to map t
Slide 12: Reservoir Seal Pair; Pindyin Reservoir
Reservoir Seal Pair; Pindyin Reservoir Alinya Project – Rickerscote Lead, Pindyin Sandstone (810-820Ma radiometric age) Aeolian sandstone of the Pindyin Sandstone at 1291.36 m in Giles-1. Quartz grains are evenly coated with hematite. Porosity 22.6% and permeability 1,538 mD • There are sufficient (
Slide 13: Alinya Project – Rickerscote Prospect, Pindyin Sst. Objective
Alinya Project – Rickerscote Prospect, Pindyin Sst. Objective Reservoir – Pindyin Sst. (800-820Ma radiometric age) Generally high N:G (ranging 85-95%) with gross thickness ranging from 25 to 150m (min-max) in offset wells Kutjara-1 Mulyawara-1 GR GR Alinya Salt Regional poro-depth trend suggest 10-1
Slide 14: On Ground Soil Survey has commenced
On Ground Soil Survey has commenced • Deployed 10 IVY detectors over Rickerscote on 23rd September 2025 • Team will retrieve them on 25th October 2025 • Team will sample 5 water bores for Hydrogen, Helium and Hydrocarbons on 26th October 2025 • Results will be used to fine tune drilling location for
Slide 15: Autonomous Soil Gas Monitoring: Beyond Soil Gas Sampling
Autonomous Soil Gas Monitoring : Beyond Soil Gas Sampling 200ml Accumulation • Unlike traditional single point soil gas Chamber H2 sampling, the autonomous monitoring will Sensor provide over 7200 hours passive soil gas monitoring CH4 • Monitoring for 30 days, measurements every Sensor 15 minutes at
Slide 16: Sample site selection
Sample site selection • IVY detectors were targeting the southern bounding fault that is interpreted to extend to basement • 2 detectors were placed on 3 key sites to increase the chance of encountering a fluid pathway and to replicate data in a small radius
Slide 17: Proven Commercialization Pathway for White Hydrogen and Helium
Proven Commercialization Pathway for White Hydrogen and Helium
Slide 18: Maturity of the work – subsurface work complete
Maturity of the work – subsurface work complete ✓ Land Access Agreement in place and permits in good order ✓ Well Failure Analysis completed ✓ Petroleum Systems mapped and understood ✓ Regional and prospect level seismic interpretation completed ✓ Soil gas sampling commenced and data gathering phase
Slide 19: Summary
Summary ✓ Whitebark’s new management has the skills and experience to deliver high impact projects ✓ The Rickerscote prospect offers a low-cost way to test a giant onshore structure that has been independently assessed to be very prospective for Hydrocarbons, Helium and Natural Hydrogen ✓ The Alinya
Slide 20: Nik Sykiotis - COO
For further information: Ph: +61 8 8232 8800 info@whitebarkenergy.com This presentation has been approved for release by the Board of Whitebark Energy Limited Nik Sykiotis - COO Slide 6