H3 Energy Limited · ASX:H3E
H3 Energy — Investor Presentation (April 2026)
36 slides from H3 Energy's investor presentation, Apr 30, 2026
Slide 1: Fuelling Australia's Energy Future
I N V E STO R P R E S E N TAT I O N | A P R I L 2 0 2 6 Fuelling Australia’s Energy Future Hydrocarbons, White Hydrogen, Natural Helium to support the Energy Transition
Slide 2: Disclaimer
DISCLAIMER No representation or warranty, expressed or implied, is made by H3 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, H3 Energy, their officers, employees and advisers expressly disc
Slide 3: Corporate Snapshot
CORPORATE SNAPSHOT Snapshot Share Price 12-Month Chart Company Overview 0.01 80.00 • ASX-listed company targeting high-impact, ASX Code H3E low-risk Oil and Gas projects in Australia. 0.01 70.00 Shares (Ordinary) 859,512,677 • Unlocking the value of the largest 60.00 discovered resource in the Perth
Slide 4: Board and Management
BOARD AND MANAGEMENT Mark Lindh Giustino (Tino) Guglielmo Prof. Rosalind Archer Richard King Nik Sykiotis Kaitlin Smith Non-Executive Chairman Non-Executive Director Non-Executive Director Non-executive Director Chief Executive Officer Company Secretary Mark Lindh was appointed as a non- Giustino (T
Slide 5: Warro Gas Field
WARRO GAS FIELD
Slide 6: Executive Summary
EXECUTIVE SUMMARY ✓ Warro is the largest proven resource in the Perth Basin (~1.5 Tcf P50 Un-risked, recoverable on R7 Block; 2015 RISC assessment). ✓ 30 km from DBNGP. ✓ 4 cased and suspended wells that can be used to appraise the field cheaply. Two wells stopped in the middle of a gas sand. ✓ We n
Slide 7: Engineering Data Review - Nothing Wrong With the Rocks
ENGINEERING DATA REVIEW-NOTHING WRONG WITH THE ROCKS • Review of Production Logging Tests (PLT) conducted on Warro 3 and Warro 3 PLT log Warro 6 demonstrate intervals that flowed gas only. Legacy data set is poor and incomplete in the other wells. • The PLT data indicates the presence of a substanti
Slide 8: Seismic Review – Deeper Potential
SEISMIC REVIEW – DEEPER POTENTIAL • Legacy 3D Seismic would benefit from reprocessing. Warro 4 • Have selected preferred contractor. • Appears to be some interesting amplitudes below the Yarragadee and in other parts of R7. • Warro 2 and Warro 3 likely to have penetrated the Cadda Fm and/or the Catt
Slide 9: Next Steps & Timeline
NEXT STEPS & TIMELINE • Next 0-6 Months: Finish Studies ➢ Review deeper potential ➢ Seek to attract a farminee for the Warro Gas Field Project • Next 6-12 Months: Well Intervention ➢ Plan a robust appraisal program to test the reservoir for a commercial gas flow and deeper potential • Next 12+ Month
Slide 10: The Alinya Project
THE H3 VALUE OPPORTUNITY The Alinya Project
Slide 11: The Alinya Project – South Australia – Elephant Country
THE ALINYA PROJECT – SOUTH AUSTRALIA – ELEPHANT COUNTRY • PEL 81 & 253 cover ~20,000km2 of the Neoproterozoic Officer Basin in central Australia. • Numerous Oil shows in historical wells. • Crude oil sourced from Type II/III kerogen which is rich in Avgas (C5-C12) and Diesel (C12-C20) once refined.
Slide 12: Early Days. Oil Shows. Byilakoora
1 . E A R LY DAYS . O I L S H O W S . BY I L A KO O R A & BYILAKOORA- 1 South Austr. Oil & Gas Corp Pty South Australia Officer Basin GL / KB + 353/ 212 m OBSERVATORY HILL (1979) Status BHF (TD) P & A /oil shows Rodda Beds (496.7m) OUTCROP PHOTOGRAPH OUTCROP SKETCH • DMERS drilled seven wells in 197
Slide 13: Abundant Source Rocks
2.ABUNDANT SOURCE ROCKS The Officer basin has numerous (>10) source rocks and oil shows in both the Cambrian & Neoproterozoic. Increasing age Source Bed S TOC HI TYPE ❑ Observatory Hill Formation (540Ma) 2.29% 410 I/II SR ❑ Ouldburra Formation (545Ma) 4.56% 510 III/IV S ❖ Tanana Formation (575Ma) 1.
Slide 14: Alinya Project – Rickerscote Prospect, Pindyin Sst Objective
ALINYA PROJECT – RICKERSCOTE PROSPECT, PINDYIN SST OBJECTIVE Kutjara-1 Mulyawara-1 Reservoir – Pindyin Sst. (800-820Ma radiometric age). GR GR Generally high N:G Alinya Salt (ranging 85-95%) with gross thickness Regional poro-depth trend suggest 10-15-22% porosity ranging from 25 to at target depth
Slide 15: The Alinya Project – Rickerscote Prospect
THE ALINYA PROJECT – RICKERSCOTE PROSPECT Kutjara-1 is ~170km to the West of the Rickerscote Prospect • The Rickerscote prospect is a 3-way dip closure on the high-side of a reverse fault N • Off-set well stratigraphy supports effective top and Excellent top cross-fault seal, as the target reservoir
Slide 16: The H3 Value Opportunity – Officer Basin
THE H3 VALUE OPPORTUNITY – OFFICER BASIN All hydrocarbon play elements are proven present in the company’s Officer Basin assets. Direct hydrocarbon measurements recorded in the basin and on- block, including numerous “Type II” oil shows. Crude oil sourced from Type II/III kerogen is rich in Avgas (C
Slide 17: Next Steps & Timeline
NEXT STEPS & TIMELINE • Next 3-6 Months: Farmout & Secure a Partner ➢ Secure a quality partner to fund the well • Next 6-12 Months: Well Planning & Permitting ➢ Start the EP and Cultural Heritage clearance process ➢ Agree on well location with JV partners ➢ Start the pre-drill (Phase 1 to 3) activit
Slide 18: Appendix - Hydrogen & Helium Potential
APPENDIX- HYDROGEN & HELIUM POTENTIAL
Slide 19: The Alinya Project – Commercial Scale & Resources
THE ALINYA PROJECT – COMMERCIAL SCALE & RESOURCES Hydrogen and Helium Prospective Resources Rickerscote Prospective Resources (100%-Total Resource) H2&He Only Sproule ERCE 2U 3U COS (Pindyin & Mulywarra Fm.) Estimate Hydrogen (Million kg) 227 1,270 14% & 7% + Helium (Bcf) 45 209 17% & 9%
Slide 20: Rickerscote Is a Direct Analogue to Mt Kitty
RICKERSCOTE IS A DIRECT ANALOGUE TO MT KITTY Mt Kitty Gas Analysis salt seal with poor reservoir Officer Basin Rickerscote 1 Centralian Super Basin Rickerscote-1: Same geology as Mt Kitty, better reservoir Source: Boreham et al 2021.
Slide 21: Potential Huge Natural Hydrogen Accumulations Identified
POTENTIAL HUGE NATURAL HYDROGEN ACCUMULATIONS IDENTIFED • 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 radiolysis source, trapped in salt
Slide 22: Gawler Craton H2 Source Rocks – Eastern Officer Basin
GAWLER CRATON H2 SOURCE ROCKS – EASTERN OFFICER BASIN Deep pre-salt plays are untested in Officer Basin. Evaporite seals have outstanding efficiencies which allow hydrogen to be stored for long periods. • Granite is the main source rock for Hydrogen. There are >20 well intercepts of Neoproterozic gr
Slide 23: Officer Basin – Seal; Wells Intercepting Salt
OFFICER BASIN – SEAL; WELLS INTERCEPTING SALT • The stable hydrogen isotopic composition of H2 Australian gases are highly depleted in 2H, which suggests an abiogenic source. • H3E is the only company targeting large pre-salt traps, with potential large volumes of natural H2 & He in continuous reser
Slide 24: 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 Neoproterozoic. There are sufficient (deep) well intercepts (3) and seismic lines to map
Slide 25: Reservoir Seal Pair; Pindyin Reservoir
RESERVOIR SEAL PAIR; PINDYIN RESERVOIR Alinya Project – Rickerscote Lead, Pindyin Sandstone (810-820Ma radiometric age) • There are sufficient (deep) well intercepts and seismic lines to map the Pindyin Sst. (SA) / Townsend Quartzite reservoir fairways with some confidence. Giles – 1 is the type sec
Slide 26: Wells With Hydrocarbon Shows, Officer Basin
3 .W E L L S W I T H H Y D RO CA R B O N S H OW S , OFFICER BASIN Petroleum systems ❑ 33 published wells with proven oil & gas shows. Officer Basin (WA) 12 wells with oil and gas shows ❑ Both immature and mature (WA) Ghori, 2002. ❑ 3 published petroleum systems (SA) AMADAEUS BASIN McKirdy & Tingate,
Slide 27: PEL 81 Well Summaries. Reasons for Failure on Block
4. PEL 81 Well summaries. Reasons for failure on block Ungoolya-1 (1985) Reservoir Seal Insufficient seismic Karlaya-1 (1984) coverage to define a trap. Reasons for failure Insufficient seismic Surface micro seep coverage to define a trap. Surface micro seep • (6) Wells drilled on surface seeps (198
Slide 28: Targets. Rickerscote Structure
5 . TA RG E TS. R I C K E R S COT E ST R U CT U R E Glacial valley cut Rickerscote 1st Target 1. Murnaroo Sst (<400m) / Dey-Dey Mdst (300-900m). 1 Closure (oil) Rickerscote; 2nd Target 2. Mundallio Sst (<270m) / Myrtle Springs Fm (<277m). Closure (oil & gas) 2 Rickerscote; 3rd Target 3. Mulyawarra S
Slide 29: Eastern Officer Basin Petroleum Systems, 2003
6.Eastern Officer Basin Petroleum Systems, 2003 ❑ Neoproterozoic and Cambrian are remarkably well endowed with oil shows. ❑ Biomarker distributions define 4 distinct petroleum systems 2 Neoproterozoic & 2 Cambrian. Alinya > Pindyan - Murnaroo - Relief Petroleum System. Oil and Gas prone. 1 ❑ Biomark
Slide 30: Neoproterozoic and Cambrian Petroleum Systems
7.NEOPROTEROZOIC AND CAMBRIAN PETROLEUM SYSTEMS Rickerscote Prospect Kutjara -1 Invalid target test Gas shows with "heavies" were recorded throughout the Neoproterozoic shows fluorescence in Ouldburra Fm, Mundallio & Pindyin Sst Rickerscote Prospect Active Neoproterozoic petroleum system convincingl
Slide 31: Rickerscote, Officer Basin
8. Rickerscote, Officer Basin. Up to 5kms od Ordovician – Devonian may be missing 3 ❑ The critical moment, timing of trap with timing of Rickerscote NW Closures charge is highlighted at (3). This cannot be estimated SE from seismic lines owing to missing section. It could be Critical Moment any of t
Slide 32: Appendix
APPENDIX
Slide 33: New Petrophysical Interpretation – Steve Adams
NEW PETROPHYSICAL INTERPRETATION – STEVE ADAMS Warro 4 Warro 5 Warro 5 - Legacy • Experienced petrophysicist Steve Adams, with knowledge of tight gas reservoirs, reinterpreted the Warro data • As per Steve’s findings, the previous interpretations were incorrect • Warro 1 to 4 are high quality wells
Slide 34: Image Log Update – Andy Wilson
IMAGE LOG UPDATE – ANDY WILSON • Expert stratigrapher and image log interpreter, with significant experience in the Perth Basin, Andy Wilson, reinterpreted the Warro image logs. • New interpretation of the Warro 3 Image log presents compelling data, contradicting previous operator’s views that perva
Slide 35: Perth Basin – Warro Gas Field
PERTH BASIN – WARRO GAS FIELD • Perth Basin - Warro Gas Field (100% interest) represents a Enormous resource base driving re-evaluation for partial significant gas resource and merits ongoing evaluation. recovery • Technical Review currently underway has already identified significant gas-bearing in
Slide 36: Nik Sykiotis, Chief Executive Officer
Nik Sykiotis Chief Executive Officer L12, 50 Pirie Street , Adelaide SA 5000 | Australia Phone 08 8232 8800 Email info@h3energy.com.au www.h3energy.com.au This announcement has been approved for release by the Board of H3 Energy Limited.