Announcement PDF E U R O P E A N F O C U S S E D P R O D U C E R & E X P L O R E R E N E R G Y 19 May 2026 Annual General Meeting - Investor Presentation A S X : A D X Vienna Basin work over operations Advancing a Multi-Well Exploration Program ADX ENERGY ANNUAL GENERAL MEETING PRESENTATION - 19 MAY 2026 Agenda  A brief corporate update and strategic outlook  Near term organic growth in Upper Austria • Shallow Gas Program • HOCH-1 well and GOLD prospect update • Near field oil exploration • PERGEN-1 oil prospect update  High impact gas opportunities • Welchau-1 light oil and gas project • Sicily Channel Gas Permit  Questions 2 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 DISCLAIMER (CAUTIONARY STATEMENT) 3 IMPORTANT NOTICE: This document has been prepared by ADX Energy Ltd (“ADX”) for the purpose of providing information to interested analysts, investors and shareholders. Any statement, opinions, projections, forecasts or other materials contained in this document do not constitute any commitments, representations or warranties by ADX or its directors, agents and employees. Except as required by law, and only to the extent so required, directors, agents and employees of ADX shall in no way be liable to any person or body for any loss, claim, demand, damages, costs or expenses of whatsoever nature arising in any way out of, or in connection with, the information contained in this document. This document includes certain statements, opinions, projections, forecasts and other material, which reflect various assumptions. The assumptions may or may not prove to be correct. ADX recommends that potential investors consult their professional advisor(s) as investment in the company is considered to be speculative in nature. The information in this presentation is in summary form only and does not contain all the information necessary to fully evaluate any transaction or investment. It should be read in conjunction with ADX’ other periodic and continuous disclosure announcements lodged with the ASX. This document does not constitute an offer, invitation or recommendation to subscribe for or purchase securities and does not form the basis of any contract or commitment. Pursuant to the requirements of the ASX Listing Rule 5.41 and 5.43 the technical and Prospective Resources information relating to Austria and Italy contained in this presentation has been reviewed by Paul Fink as part of the due diligence process on behalf of ADX. Mr. Fink is Technical Director of ADX Energy Ltd is a qualified geophysicist with 30 years of technical, commercial and management experience in exploration for, appraisal and development of oil and gas resources. Mr. Fink is a member of the EAGE (European Association of Geoscientists & Engineers) and FIDIC (Federation of Consulting Engineers). ADX confirms that it is not aware of any new information or data that may materially affect the information included in the relevant market announcements for reserves or resources and that all material assumptions and technical parameters underpinning the estimates in the relevant market announcements continue to apply and have not materially changed. Independent audit of developed reserves have been completed for ADX’ Zistersdorf and Gaiselberg fields (“Fields”) in the Vienna basin and Anshof in Upper Austria (Austria) by RISC Advisory Pty Ltd (“RISC”). RISC conducted an independent audit of ADX’ Fields evaluations, including production forecasts, cost estimates and project economics. Production from existing wells is classified as Developed Producing. Production from planned recompletion of existing wells to new intervals is classified as Developed Non-Producing. RISC is an independent advisory firm offering the highest level of technical and commercial advice to a broad range of clients in the energy industries worldwide. RISC has offices in London, Perth, Brisbane and South-East Asia and has completed assignments in more than 90 countries for over 500 clients and has grown to become an international energy advisor of choice. PRMS RESERVES CLASSIFICATIONS USED IN THIS PRESENTATION: Developed Reserves are quantities expected to be recovered from existing wells and facilities. Developed Producing Reserves are expected to be recovered from completion intervals that are open and producing at the time of the estimate. Developed Non-Producing Reserves include shut-in and behind-pipe reserves with minor costs to access. Undeveloped Reserves are quantities expected to be recovered through future significant investments. A. Proved Reserves (1P) are those quantities of Petroleum that by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be commercially recoverable from known reservoirs and under defined technical and commercial conditions. If deterministic methods are used, the term “reasonable certainty” is intended to express a high degree of confidence that the quantities will be recovered. If probabilistic methods are used, there should be at least a 90% probability that the quantities actually recovered will be equal or exceed the estimate. B. Probable Reserves are those additional Reserves which analysis of geoscience and engineering data indicate are less likely to be recovered than Possible Reserves. It is equally likely that actual remaining quantities recovered will be greater than or less than the sum of the estimated Proved plus Probable Reserves (2P). In this context, when probabilistic methods are used, there should be at least a 50% probability that the actual quantities recovered will equal or exceed the 2P estimate. C. Possible Reserves are those additional Reserves that analysis of geoscience and engineering data suggest are less likely to be recoverable that Probable Reserves. The total quantities ultimately recovered from the project have a low probability to exceed the sum of Proved plus Probable plus Possible (3P) Reserves, which is equivalent to the high-estimate scenario. When probabilistic methods are used, there should be at least a 10% probability that the actual quantities recovered will equal or exceed the 3P estimate. Possible Reserves that are located outside the 2P area (not upside quantities to the 2P scenario) may exist only when the commercial and technical maturity criteria have been met (that incorporate the Possible development scope). Standalone Possible Reserves must reference a commercial 2P project. PROSPECTIVE RESOURCE CLASSIFICATIONS USED IN THIS PRESENTATION: Prospective Resources are those estimated quantities of petroleum that may potentially be recovered by the application of a future development project(s) relate to undiscovered accumulations. These estimates have both an associated risk of discovery and a risk of development. Further explorations appraisal and evaluation is required to determine the existence of a significant quantity of potentially moveable hydrocarbons. P(90) Estimate or Low Estimate: means at least a 90% probability that the quantities actually recovered will equal or exceed the estimate. P(50) Estimate or Best Estimate: means At least a 50% probability that the quantities actually recovered will equal or exceed the estimate. P(10) Estimate or High Estimate: means At least a 10% probability that the quantities actually recovered will equal or exceed the estimate. OIL AND GAS CONVERSIONS BOE means barrels of oil equivalent. Bcfe means billion of cubic feet of gas equivalent. Gas to oil conversion used in this presentation: 6 Mcf of gas = 1 barrel of oil. Mcf means thousand cubic feet of gas ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 CAUTIONARY STATEMENT: Prospective Resources are those estimated quantities of petroleum that may potentially be recovered by the application of a future development project(s) relate to undiscovered accumulations. These estimates have both an associated risk of discovery and a risk of development. Further explorations appraisal and evaluation is required to determine the existence of a significant quantity of potentially moveable hydrocarbons. 1 March 2026 average Austrian net production, 2 Unaudited Reserves at 31 December 2025 3 Prospective Resources reporting date update 3.3.2026 (refer slide 20). 4 Prospective Resources reporting date update 2.12.2025 5 Central European Gas Hub Austrian Current Production 210 BOEPD 1 Austrian Exploration Portfolio 701 BCF Gas & 68 MMBBL Oil 3 Sicily Channel Gas Permit 619 BCF Gas 4 COMPANY OVERVIEW STABLE PRODUCTION • LOW-RISK CASH FLOW GROWTH • HIGH-IMPACT EXPLORATION PORTFOLIO 4 Multiple Farmouts Accelerate programs & reduce risk Operating Capability Generate, Explore & Develop Investment Focus  High value hydrocarbons - Brent & CGH gas price 5  Excellent access to infrastructure  Seismic and well data availability  Rapid licencing in pro development Tier 1 jurisdictions Austrian 2(P) Reserves 1.47 MMBOE 2 Vienna Basin Fields and Anshof field Total – 210 MMBOE 6 6 Reporting date on 3.3.2026 – refer slide 19 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 02  ASX listed oil & gas exploration and production company with European focus  Board comprised of international experienced, energy specialists  Corporate HQ in Perth, Australia and European operating office in Vienna, Austria FINANCIAL SUMMARY, CORPORATE OVERVIEW AND VALUE DEVELOPMENT 5 Capital Structure Existing production and near-term low risk exploration (Upper Austria) Maintain production and develop cash flow base with low risk, quick to develop gas, oil appraisal and exploration near to infrastructure “A combination of production, appraisal, low risk exploration and high impact exploration” 1 2 3 Strategic Value Development Corporate Overview High Impact Oil and Gas Resource (Welchau) High Impact Gas Resource (Sicily Channel) Exceptional Resource Leverage for proven oil and gas play at high equity in onshore location close to pipeline infrastructure Exceptional Resource Leverage for proven gas play at high equity in shallow offshore location close to pipeline infrastructure Ticker ASX: ADX FRA: GHU Share Price (at 18 May 2026) A$0.027 Number of shares 894m Number of options 93m Market capitalisation A$24.1M Cash (unrestricted) at 31 March 2026 A$4.9M Debt A$0.8M Enterprise value A$20.0M Number of shareholders 2,114 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 RECENT ACTIVITIES -TESTING, DRILLING & PORTFOLIO DEVELOPMENT 6 Austrian Production, Low Risk Shallow Gas Welchau Testing and Resource Upgrade Sicily Channel Further Resource Definition Vienna Basin Production Work overs Pergen Near Field Oil Prospect Drill and Complete HOCH-1 well Test HOCH-1 Well Light Oil recovered from Testing Updip Oil Mapped 18 MMBBL 1,2 Down dip gas resource 387 BCF 1,2 Reviewed seismic and well data Purchase further seismic data Reassess Gas Resource 619 BCF 3 Independent Audit of Prospective resources 1 Refer to Cautionary Statement in slide 4 of presentation 2 P(MEAN) Prospective Resources - reporting date on 3.3.2026 – refer slide 20 3 P(MEAN) Prospective Resources - reporting date on 2.12.2025 – refer slide 20 GOLD rig site Prep PERGEN Permitting Seismic Reprocessing And Mapping Down dip drilling Planning & Permitting ADX EUROPEAN PORTFOLIO ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 CURRENT AND PLANNED ACTIVITIES 7 Near Term Production Growth 1. Vienna Basin Field  behind pipe perforation  infill drilling 2. HOCH-1 Well Testing 3. Drill Shallow Gas Prospect GOLD-1 4. Drill Shallow Gas Prospect SCHOE-1 5. Drill Pergen Near Field Prospect 1 1 Assume 2 for 1 Farmout High Impact Resource Development 6. Welchau Deepening 7. Sicily Channel Resource Verification  Preparation for seismic acquisition  Potential acreage extension  Potential 7 fold increase in risked production within 2 years  A 70% increase in revenue from operations  Equity placement A$ 4.4 mill.  Loan Note extension A$ 0.75 mill.  Loan notes repaid of A$ 0.5 mill.  Preparation for dual listing on Oslo Børs Corporate and Finance Portfolio Development Organic Growth Shareholder Returns ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 EUROPEAN GAS MARKET DYNAMICS SIGNIFICANT SUPPLY RISKS DRIVEN BY THE GLOBAL GEOPOLITICAL BACKDROP 8 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 Europe is in a vulnerable position at the end of a cold winter: - Underground storage is 36% full - >20% of the global LNG production is off-line due the “closure” of the Strait of Hormuz - EU has the committed to phase out Russian gas supplies by Nov-27 (12% of EU gas supply) Since 28-Feb-26, European gas trade 32% above 2025 average prices and have reached levels not achieved since 2022 LNG supply risks are fueling extreme price volatility and reinforce the need for Europe to reduce reliance on imports by increasing domestic gas production 1 2025 average & average since 28-Feb-26; 2 Source: KYOS; 3 Source: Bruegel; 4 Source: Statista (Sept-25) Main gas price indexes1 EU underground gas storage levels2 36.3% full 16-May-26 16-May-25 44.7% full EU gas supply mix3 World’s top 10 LNG exporters4 Russia (piped) Russia (LNG) Norway (LNG) Norway (piped) U.S.A. (LNG) Algeria (LNG) Algeria (piped) Other (LNG) U.K. Azerbaijan Libya LNG = 46% of supply 12.0 12.2 19.2 22.2 25.3 31.5 36.6 77.1 81.8 102.3 0.0 20.0 40.0 60.0 80.0 100.0 Trinidad & Tobago Egypt Indonesia Nigeria Algeria Malaysia Russia Qatar Australia U.S.A. Export capacity in operation (mil. MT) 12.5 12.2 3.6 16.5 17.9 2.9 0 2 4 6 8 10 12 14 16 18 Dutch TTF (CME) LNG JKM (Platts) U.S. nat. gas (CME) US$ per MMBtu 2025 Since 28-Feb-26 European and Asian gas prices are the most impacted by LNG supply disruptions from the Middle- East (Qatar)  Drilling permitting approved in a short time of 4 – 6 months  HOCH-1 has been completed ready for production testing scheduled for mid June 2026  The GOLD and SCHOE shallow gas prospects to follow • Low drilling costs, large upside resources and tie in to close by pipelines provides rapid cashflow build up  PERGEN-1 near field oil prospect has been matured for drilling. Permitting and land acquisition commenced UPPER AUSTRIA NEAR TERM EXPLORATION WORK PROGRAM 9 Project Operational Sequence 1 2 3 4 HOCH-1 production testing mid June at 50% economic interest GOLD-1 shallow gas well 8.3 BCF P(mean)1.2 at 100% economic interest SCHOEN-1 shallow gas well 6.3 BCF P(mean)1,2 at 50% economic interest Upper Austrian Exploration and Appraisal Portfolio 1 3 2 4 PERGEN-1 near field oil prospect gas 4.9 MMBBLs P(mean)1,3 at 100% economic interest 1Refer to Cautionary Statement in slide 4 of presentation 2Prospective Resources reporting date update 3.3.2026 (refer slide 20) ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 HOCH–1 SUMMARY OF RESULTS AND WELL TEST PLANNING DRILLING AND INITIAL LOGGING RESULTS INDICATE UP TO 7 GAS RESERVOIRS FOR TESTING  Gas logs and Mudlogs recorded while drilling indicate the presence of gas and sandstone reservoirs in the Hall Formation (primary target) and Base Hall Formation  Results of 3 logging runs and quick look Interpretation indicate up to 7 gas reservoirs to be production tested  The HOCH-1 well has been cased and completed in preparation for production testing after perforation Hall - Basin Floor Fan Base Hall - Channels Upper Puchkirchen Gas shows while drilling Quick Look Logging Interpretation Example Base Hall Sands from Mudlogging confirmed by Logging 3D PSTM SEISMIC LINE Hall - Basin Floor Fan - Primary target HOCH-1 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 10 HOCH–1 SUMMARY OF RESULTS AND WELL TEST PLANNING EXTENSIVE EXAMPLES OF PRODUCTION AND RESERVES FROM VERY THIN HALL GAS RESERVOIRS HOCH-1 is in line with a large number of gas fields producing from very thin Hall Formation reservoirs  Total of 233 BCF of production from thin (on average less than 2 meters) Hall Formation reservoirs in fields near to the ADX-AT-I exploration license area  10 BCF reserves or more has been produced from the top 10% of Hall Formation fields. The average field size is only around 3 bcf because most of the fields were drilled by accident while targeting deeper gas and oil structures in the past - many before the availability of 3D seismic data. Hall - Basin Floor Fan Base Hall - Channel Base Hall - Channel HALL GAS FIELDS CLOSE TO ADX AT-I Total of 233 BCF from HALL HOCH WELL LOGS HALL Fm Historic Gas Field With Reservoirs: 0.4 – 1.8 m 38 BCF 2.8 BCF 0.4 BCF 1.2 BCF 0.5 BCF 21 BCF 11 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 NEAR TERM SHALLOW GAS EXPLORATION PROGRAM GOLD PROSPECT IS THE NEXT WELL – GOLD CLUSTER ECONOMICS ARE COMPELLING 12 Cluster development potential 1, 2 GOLD‘Cluster’ revenue split Cumulative recovery: 13.2 Bcf 2 Gross cumul. revenue: €145 mil. Gas pricing: € 40/MWh 13 Bcf (Pmean) total for GOLD, ZAUN and GRAB Prospects 2 GOLD Prospect drilling after HOCH-1 - if successful follow up with GRAB and Zaun prospects in GOLD Cluster Extensive, valuable and repeatable play with multiple prospects identified in ADX 100% held acreage  GOLD prospect will follow up after HOCH in program  Shallow drill depth, productive sands and proximity to pipeline infrastructure results in high economic value compared to drilling costs  Probability of success for GOLD-1 is greater than 80%  Biogenic gas (99% methane) results in simple, rapid and low development costs  Matured follow up prospects can be tied-in to enhance value 3 1 Refer to Cautionary Statement in slide 4 of presentation 2 Prospective Resources reporting date update 27.8.2025 – refer slide page 19 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 ANSHOF NEAR FIELD OIL APPRAISAL AND EXPLORATION PROSPECTS RE-INTERPRETED, ENHANCED AND MATURED FOR DRILLING 13  Anshof Production Facility has 3,000 BPD processing capacity  7 prospects previously mapped have been reviewed  New technical interpretation for PERG and SGB prospects has resulted in improved volumes and risking  PERGERN (PERG) prospect has been matured for drilling with a revised resource since ASX release on 3/03/2026 (below)  STEINGRUB (SGB) low risk appraisal prospect also matured for drilling. Permitting has commenced for both prospects ANSHOF OIL Field ADX - ANSHOF PERMANENT PRODUCTION FACILITY 7 Near Field Oil Prospects - P(Mean) of 15.1MMBOE 1 Low P90 Best P50 Mean (Pmean) High P10 SGB 0.3 1.0 1.3 2.8 TERN 0.7 2.0 3.1 6.5 WOLF 0.6 1.8 2.2 4.4 PERG 0.5 2.0 2.5 5.1 GRB 1.0 2.8 4.0 8.1 LIND 0.2 0.6 1.0 2.2 WIND 0.2 0.6 0.9 1.8 Total (MMBOE) 4 3.5 10.7 15.1 30.9 1 Reported on 3 March 2026 2 Refer to Cautionary Statement in slide 4 of presentation 3 Estimate includes oil and solution gas 4 Arithmetic Summation ADX-AT-II CRUDE OIL 1 2 Prospective Resource (MMBOE) 3 Prospect Name PERGEN REVISED PROSPECT ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 PERGERN OIL PROSPECT DESCRIPTION 14 DRILL READY PROJECT AND FARM OUT CANDIDATE Pergen Seismic Section Showing Well Path Pergen Depth Map PERGEN (PERG) is a material, prospective short development cycle, oil exploration prospect adjacent to producing fields that has been matured for drilling  Large Resource Base of 6.5 MMBBLS P(Mean) 2, 4 with stacked pay and nearby field analogues –refer table below  Shallow, Low Cost Well approx. EUR 3.2 million  Rapid Commercialisation due to infrastructure availability  Robust Economics with low minimum reserves case  Early Production possible from long term production testing  High value Crude traded at Brent equivalent  Attractive Farmout Candidate due to size and low risk 4 Previous Prospective Resources reporting date on 3# March 2026 – refer slide page 21 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 Pressure and structural data indicates overpressure and an aquifer system connected between Welchau-1 and downdip Molln-1 gas-condensate discovery Reifling Fm testing program at or near the oil water contact of an updip oil accumulation Welchau Anticline showing Molln Gas Fairway and Welchau Updip Light Oil Potential in ADX AT-II licence Oil recovered at surface during Reifling Fm testing WELCHAU-1 TECHNICAL OVERVIEW A STRATEGICALLY SIGNIFICANT GAS AND LIGHT OIL DISCOVERY 15  Welchau -1 drilling and testing has confirmed a strategically significant hydrocarbon discovery  Hydrocarbon shows, light oil sampled in Steinalm Formation and produced from Reifling Formation during testing  The geometry of the Welchau anticline has been updated Integrating additional surface data resulting in a revised geological interpretation  A structural crest mapped approximately 500 metres updip from the top of the Steinalm reservoir intersected in Welchau 1 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 RELEVANCE OF WELCHAU RESULTS TO DATE A LIGHT OIL DISCOVERY CONFIRMED – DEEPER LARGE GAS TARGET REMAINS UNTESTED 16 Light Oil Accumulation 1. 450 m of gas shows and light oil sampled 2. Testing and sampling confirmed light oil accumulation at well with 500m up dip oil potential at crest of structure 3. 18 MMBBL P(mean)1,3 prospective resources Gas Condensate Target 1. Original target remains undrilled below 1733m 2. Two duplexes mapped below current well depth in pressure communication with Molln-1 gas condensate discovery 3. Shallower duplex 600 to 700 m below 4. 387 BCF + 14 MMBBls 1,2 P(mean) Duplex 1 and 2 prospective resources (Gas and Condensate) Welchau Anticline is an interconnected petroleum system - Pressure and structural data demonstrate pressure continuity between Welchau 1 and downdip Molln 1 discovery 1Refer to Cautionary Statement in slide 4 of presentation, 2Prospective Resources reporting date update 3.3.2026 – refer slide pg 19 3 Prospective Resources reporting date update 4.2.2026 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 C.R 150.AU EXPLORATION PERMIT – SICILY CHANNEL OFFSHORE ITALY 17 HIGH IMPACT GAS PROJECT IN AN EMERGING GAS PROVINCE ON EUROPE’S DOORSTEP Recent ADX Permit August 2025 ENI Gas Project August 2024 and new applications A very prospective permit for gas demonstrated by historic data from deeper oil exploration  An emerging and newly producing offshore gas province  Shallow water (<100 m) and drill depths (700-2000 m)  Gas shows in wells and good quality legacy 2D seismic  Proximity to tie in point onshore at Mazara (less than 50 km from permit)  Stacked pay and productive sands  Sweet biogenic gas (99% methane)  Favourable fiscal terms with 10% royalty and 28% corporate tax  Excellent gas pricing in Italy 619 BCF P(mean) prospective resources1 from 9 high-graded prospects in the permit using historic data and new field data Recent Progress  ENI dataroom to review the entire seismic database (Q1 2026)  Seismic data purchase and prospect re-evaluation  Independent Resources Report Scheduled for Q3 2026 1 Refer to Cautionary Statement in slide 4 of presentation ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 2Prospective Resources reporting date update 3.3.2026 – refer slide page 20 SICILY CHANNEL OFFSHORE ITALY - C.R 150.AU EXPLORATION PERMIT PROVEN GAS PLAY ENCOUNTERED IN A LARGE AREA WITHIN SIMILAR RESERVOIRS BASED ON EXTENSIVE DATA SET 18 4: Tunisia & Pantelleria: Miocene & Pliocene high porosity shallow gas sandstones proven in wells (Kerkouane -1a) and ADX 3D seismic 770 km2 1. ADX C.R 150.AU WELL DATA & 2D SEISMIC CLEARLY PROOFS HIGH POROSITY MIOCENE SANDSTONE AND GAS (2D DHI) 2: Lippone producing analogue gas field (ENI Med) and several Miocene gas sandstone reservoirs 3: Latest 3D proofs gas reservoirs and with extremely high resolution several stacked sandstone reservoirs 1: ADX - C.R 150. AU 2: Tunisia & Pantelleria 3: Onshore Sicily 3: ENI – 2024 Production start 1 4 2 3 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 C.R 150.AU EXPLORATION PERMIT – SICILY CHANNEL OFFSHORE ITALY A biogenic gas play fairway identified from extensive data and past ADX experience Map shows distribution of the Pliocene-Quaternary (yellow) and Tortonian-Messinian siliciclastic (orange) foredeeps  The Lippone-Mazara gas field (ENI 100%) and strong gas shows from the Terravecchia Fm. sandstone reservoirs in historical wells confirm the NE-SW play fairway  Opportunity to apply for other exploration areas in water depth of less than 100m  ADX has extensive knowledge of the play from exploration in nearby Tunisian acreage including 3D seismic and drilling 19 C.R 150.AU ADX historic acreage in Tunisia OWC 1600 m TVDSS View from South-East 80 meter oil column 110 meter oil column Undrained Pool 15 mmbo (2C) Partly Drained Pool (21 mmbo) 13 mmbo (2C) remaining 5 km Nilde Oil Field – remaining oil potential Nilde Oil Field Potential - historic oil field in C.R.150.AU licence  The Italian Ministry of Environment and Energy Security (MASE) with its Hydrocarbon and Georesources department (UNMIG) published a note regarding the Nilde oil fields potential as a CO2 storage project  In conjunction with a Carbon Capture Storage project, the remaining Nilde oil could potentially be recovered Nilde oil field ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 UPPER AUSTRIA PROSPECT INVENTORY INCLUDING WELCHAU 3 (LAST REPORTING DATE 3 MARCH 2026) Testing at the Molln-1 gas well (1989) Low P90 Best P50 Mean (Pmean) High P10 Low P90 Best P50 Mean (Pmean) High P10 GOLD 4.1 7.5 8.3 13.4 - - - - 100 ADX-AT-II ZAUN 1.5 2.7 3.0 4.8 - - - - 100 ADX-AT-II GRAB 1.2 1.9 2.0 2.9 - - - - 100 ADX-AT-II HOCH 1.5 5.2 8.0 17.3 - - - - 50 ADX-AT-I SCHOE 1.9 5.4 6.3 12.1 - - - - 50 ADX-AT-I PICH 2.2 5.1 5.4 9.0 - - - - 100 ADX-AT-II STEY 1.2 2.4 2.7 4.6 - - - - 100 ADX-AT-II HASE 2.0 3.1 3.4 5.0 - - - - 100 ADX-AT-I Sub-total 15.6 33.3 39.1 69.1 - - - - SGB 0.1 0.3 0.3 0.8 0.3 0.9 1.3 2.7 100 ADX-AT-II TERN 0.3 0.8 1.3 2.8 0.6 1.9 2.9 6.1 100 ADX-AT-II WOLF 0.2 0.7 0.9 1.8 0.5 1.6 2.1 4.1 100 ADX-AT-II PERG 0.2 0.7 0.8 1.8 0.5 1.9 2.4 4.8 100 ADX-AT-II GRB - - - - 1.0 2.8 4.0 8.1 100 ADX-AT-II LIND 0.1 0.3 0.6 1.3 0.2 0.5 0.9 2.0 100 ADX-AT-II WIND 0.1 0.2 0.4 0.7 0.2 0.6 0.8 1.7 100 ADX-AT-II Sub-total 1.0 3.1 4.3 9.3 3.3 10.2 14.3 29.4 ROS - - - - 2.5 11.0 19.6 49.4 75 ADX-AT-II WEL UPDIP - - - - 3.6 11.7 17.7 38.6 75 ADX-AT-II WEL DOWNDIP 56.2 230.2 387.4 956.7 1.4 8.1 13.6 38.3 75 ADX-AT-II Sub-total 56.2 230.2 387.4 956.7 7.5 30.8 50.9 126.3 ZAM 11.0 49.0 93.0 216.0 - - - - 100 ADX-AT-I OHO 34.0 89.8 114.3 224.3 - - - - 100 ADX-AT-I IRR 9.0 25.8 35.3 74.4 - - - - 50 ADX-AT-I GMU 2.8 7.1 9.2 17.7 0.4 1.3 1.8 3.8 100 ADX-AT-I Sub-total 56.8 171.7 251.8 532.4 0.4 1.3 1.8 3.8 BRUNN 1.3 3.4 4.2 8.0 - - - - 50 ADX-AT-I ARD 1.6 5.6 6.7 13.5 0.3 0.7 0.9 1.7 50 ADX-AT-I BUCH 2.2 6.4 7.6 14.4 - - - - 50 ADX-AT-I Sub-total 5.1 15.4 18.5 35.9 0.3 0.7 0.9 1.7 TOTAL (Austria) Arithmetic Summation 134.6 453.7 701.1 1603.4 11.4 42.9 67.9 161.1 AUSTRIA Welchau Carbonate Sub-Flysch Molasse Near Field Oil (Anshof) Play Type Prospect Name NATURAL GAS CRUDE OIL Equity interest [%] Permit Prospective Resource (BCF) Prospective Resource (MMBBL) Shallow Gas SICILY CHANNEL PROSPECT INVENTORY 3 (LAST REPORTING DATE 2 DECEMBER 2025) Low Best Mean High P(90) P(50) P(Mean) P(10) ADX equity (BCF) (BCF) (BCF) (BCF) interest Upper Miocene 1 22 60 77 158 100% Biogenic Gas 2 26 64 80 160 100% 3 46 111 136 267 100% 4 17 41 51 101 100% 5 25 60 74 146 100% Sub-total 136 336 418 832 Upper Miocene 6 18 43 52 102 100% Biogenic Gas 7 15 37 46 90 100% 9 19 68 103 241 100% Sub-total 52 148 201 433 188 484 619 1265 2 Prospective Resources reporting date update 30.8.2022 3 Prospects / Leads included in previous reporting date 2 Additional Prospects / Leads not previously reported TOTAL (BCF) Arithmetic Sum 1 Prospective Resource Estimates are unrisked recoverable. They have been estimated using probabilistic methodology in accordance with SPE-PRMS (2018). All totals are aggregated arithmetically. ADX Sicily Channel Prospective Resources Estimates 1 C.R 150.AU Permit ASX Reporting Date: 2 December 2025 Play Type Prospect/ Lead 3 Refer to Cautionary Statement in slide 4 of this presentation 20 ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026 2 1 Thank You For further information: Ian Tchacos Executive Chairman ian.tchacos@adxenergy.com.au Paul Fink Chief Executive Officer paul.fink@adx-energy.com Amanda Sparks Finance Manager & Company Secretary amanda.sparks@adxenergy.com.au ASX: ADX adxenergy.com.au Connect with Us Better energy A cleaner, more secure future for Europe ADX Energy (ASX: ADX) | Investor Presentation | 19 May 2026