Slide 1: ASX announcement cover: Presentation to Analysts and Financial Markets
To Company Announcements Office Facsimile 1300 135 638 Company ASX Limited Date 13 August 2026 From Helen Hardy Pages 58 Subject Presentation to Analysts and Financial Markets Please find attached a release on the above subject. For personal use only Authorised for lodgement by: Helen Hardy Company
Slide 2: Origin Energy FY26 Results
Origin Energy For personal use only FY26 Results Year ended 30 June 2026 Frank Calabria, CEO & Tony Lucas, CFO 13 August 2026
Slide 3: Our FY26 Results
Our FY26 Results For personal use only Summary of Financial Result − Energy Markets: $1,701 million EBITDA, towards upper end of guidance − Integrated Gas: $1,620 million EBITDA, in line with expectations for APLNG and LNG trading − Octopus/Kraken: -$8 million EBITDA, with UK Retail contributing $13
Slide 4: Financial highlights
Financial highlights For personal use only STATUTORY UNDERLYING UNDERLYING PROFIT PROFIT EBITDA $1,574M Compared to $1,481 million in FY25 $1,159M Compared to $1,490 million in FY25 $3,220M Compared to $3,411 million in FY25 ADJUSTED FREE CASH FLOW ADJUSTED NET DEBT/ADJUSTED FINAL DIVIDEND UNDERLYIN
Slide 5: Data security incident
Data security incident For personal use only • In July 2026, Origin advised there had been unauthorised access to customer information • Supporting affected customers has been our key priority: − Completed initial notifications to customers whose information has been accessed and providing support −
Slide 6: Purpose: Getting energy right for our customers, communities and planet
Purpose: Getting energy right for our customers, communities and planet For personal use only Customers Communities Planet • Focused on supporting customers • $475m in regional procurement • Scope 1-3 equity emissions down 2% impacted by the data security incident (Scope 1 emissions down by 7%) • $2
Slide 7: Leading through differentiated assets & capabilities
Leading through differentiated assets & capabilities For personal use only Our ambition remains to lead the energy transition through cleaner energy & customer solutions Customer Energy Supply Energy resource Octopus Kraken Scale, customer reach Largest thermal peaking High quality LNG asset Proven
Slide 8: Investment proposition: Diversified strong cash flows and value upside
Investment proposition: Diversified strong cash flows and value upside For personal use only Leading Australian energy businesses with strong cashflows, fully franked dividends and + Significant growth potential through two independent and globally significant businesses investing in the energy tran
Slide 9: Key commodity markets have shifted significantly so far in 2026
Key commodity markets have shifted significantly so far in 2026 For personal use only NSW electricity forward prices Japan customs-cleared crude East coast gas prices ($/GJ) ($/MWh) (US$/bbl) 25 120 150 FY26 FY27 FY28 110 130 20 100 110 15 90 80 90 10 70 70 5 60 Jun-24 Dec-24 Jun-25 Dec-25 Jun-26 De
Slide 10: Octopus & Kraken are now separate and well set up for future growth
Octopus & Kraken are now separate and well set up for future growth For personal use only Legal separation completed Both businesses well positioned to pursue ambitious growth 22.7% stake ~19m Energy Services 3.2GW Customer accounts (5th Platform to electrify and Customer flexible load on largest Eu
Slide 11: Financial Review
Financial Review For personal use only Tony Lucas
Slide 12: Underlying EBITDA of $3,220 million
Underlying EBITDA of $3,220 million For personal use only FY25 FY26 INTEGRATED GAS $3,411m $3,220m OTHER IG: Other • Includes LNG trading gains of $140m, in line with guidance 327 IG: Other 142 INTEGRATED GAS IG: IG: SHARE OF APLNG • Share of APLNG EBITDA reflects lower realised prices and volumes a
Slide 13: Adjusted Free Cash Flow up $867 million
Adjusted Free Cash Flow up $867 million For personal use only Free cash flow ($m) CASH HIGHLIGHTS FY26 FY25 Change Underlying EBITDA (adj for non-cash items) 1,963 1,840 123 >100% Tax paid Change in working capital/Other 112 (648) 760 Energy Markets EBITDA cash Lower due to a large FY24 tax conversi
Slide 14: Strong balance sheet funding growth and shareholder returns
Strong balance sheet funding growth and shareholder returns For personal use only Adjusted Net Debt ($m) Adjusted Net Debt / Adjusted Underlying EBITDA1 4,852 4x 4,654 756 86 (1,917) 3x 990 Target range of 2 – 3x 223 2x (911) 971 1x 1) Excludes Origin’s share of EBITDA from APLNG and Octopus Energy
Slide 15: Capital allocation - Dividend stable
Capital allocation - Dividend stable For personal use only Dividends (cps) • Shareholder distribution policy seeks to deliver sustainable distributions through the business cycle • Balance sheet well positioned to be resilient to commodity cycles 30 30 27.5 • Final FY26 dividend determined of 30cps,
Slide 16: Business Performance
Business Performance For personal use only Frank Calabria
Slide 17: Energy Markets: Delivering on short and medium-term targets
Energy Markets Energy Markets: Delivering on short and medium-term targets For personal use only Electricity gross profit Gas gross profit Cost to Serve target delivered $/MWh A$/GJ $m (LHS), $/cust account (RHS) 50 6 800 250 5 40 200 600 Medium-term target 4 Medium-term 30 range 150 target range 3
Slide 18: Customer: Relentless focus driving share, retention and innovation
Energy Markets Customer: Relentless focus driving share, retention and innovation For personal use only Customer Account Growth Customer Retention Products and Solutions Customer accounts (‘000) Monthly churn rate (%) +3% CAGR 30% 4,937 4,695 4,591 4,436 4,483 4,264 25% 20% 25k 4k 3.5k <1k reviews r
Slide 19: Energy Supply: Batteries taking the pressure off gas for managing daily peaks
Energy Markets Energy Supply: Batteries taking the pressure off gas for managing daily peaks For personal use only Significant ramp up of grid scale and home batteries Batteries complement our gas peaking fleet NEM storage (GWh) Origin - NSW Origin - QLD 35 (Daily avg MW) (Daily avg MW) 600 30 500 2
Slide 20: Energy Supply: Our flexible portfolio is well positioned for firming renewables
Energy Markets Energy Supply: Our flexible portfolio is well positioned for firming renewables For personal use only Batteries to solve most days; Gas peakers and hydro to firm the seasons Indicative NSW future monthly renewable over/under supply • Renewables remain the lowest cost form of new energ
Slide 21: APLNG summary: Continued strong cash distributions
Integrated Gas APLNG summary: Continued strong cash distributions For personal use only Revenue Costs APLNG dividends to Origin $m Capex + Opex ($m)1 $m (LHS) and A$/bbl (RHS) 12,000 3,500 1,600 140 3,000 1,400 120 10,000 1,200 2,500 100 8,000 1,000 2,000 80 6,000 800 1,500 60 600 4,000 1,000 40 400
Slide 22: APLNG's world-class CSG resource supports continued reserves growth
Integrated Gas APLNG's world-class CSG resource supports continued reserves growth For personal use only APLNG Reserves1 Production and wells drilled PJ APLNG Production & Operated Wells Drilled (# LHS) (% RHS) 16,000 700 97% Non-Operated 14,000 600 Production 96% 12,000 2C Reedy Creek, 95% 500 LNG
Slide 23: Continued optimisation and drilling ramp up to partially offset natural decline
Integrated Gas Continued optimisation and drilling ramp up to partially offset natural decline For personal use only Lowest cost / Short cycle Ongoing well • Continue optimisation activities to improve flow rates through Artificial Lift Systems, optimisation live workovers, formation stabilisation,
Slide 24: Octopus' leading brand and service underpin global scale and growth
Octopus Energy Octopus’ leading brand and service underpin global scale and growth For personal use only 23 Octopus is in a league of its own on brand love Largest and highest rated energy UK Retail YouGov UK Energy Retailer Brand Index, 2026 retailer in the UK 25 15 14.8m customer accounts Octopus
Slide 25: Octopus Energy: UK Retail strength is funding investment in scale and depth
Octopus Energy Octopus Energy: UK Retail strength is funding investment in scale and depth For personal use only Octopus Energy EBITDA Globally significant customer scale and an …with a strong growth outlook integrated energy platform… UK Retail reported its fourth consecutive year of • Well placed
Slide 26: Kraken Technologies: Global account and revenue momentum
Kraken Technologies Kraken Technologies: Global account and revenue momentum For personal use only Strong business momentum… ...driving revenue growth Live & contracted accounts Revenue (millions) (£m) 95 300 248 74 51 163 112 32 52 45 35 23 FY23 FY24 FY25 FY26 FY23 FY24 FY25 FY26 Contracted Live Re
Slide 27: Kraken Technologies: Investing in migration and product depth
Kraken Technologies Kraken Technologies: Investing in migration and product depth For personal use only FY26 EBITDA includes investment to accelerate customer migration FY26 achievements EBITDA (GBP £m 100%) 44% increase in contracted 89 annual recurring revenue 75 June 2026 vs June 2025 71 72 62 >9
Slide 28: Guidance and Q&A
Guidance and Q&A For personal use only Frank Calabria
Slide 29: FY27 Guidance Summary
FY27 Guidance Summary For personal use only The following guidance is provided on the basis that market conditions and the regulatory environment do not materially change Origin FY26 FY27 guidance Energy Markets EBITDA A$m 1,701 1,550 – 1,850 Total capex (excluding acquisitions) A$m 969 450 - 650 AP
Slide 30: Summary and Q&A
Summary and Q&A For personal use only • Advantaged assets and capabilities set up for the energy transition • Strong cash flow and returns from two diversified businesses – Largest domestic retail position – Hard to replicate Energy Markets portfolio, supplemented by batteries – APLNG a world class
Slide 31: Important notices
Important notices For personal use only Forward looking statements • This presentation contains forward looking statements, including statements of current intention, statements of opinion and predictions as to possible future events and future financial prospects. Such statements are not statements
Slide 32: Important notices
Important notices For personal use only All figures in this presentation relate to businesses of the Origin Energy Group (Origin, or the Company), being Origin Energy Limited and its controlled entities, for the reporting period ended 30 June 2026 (the period) compared with the reporting period ende
Slide 33: For more information
For more information For personal use only Liam Barry Head of Corporate Strategy and Investor Relations Email: liam.barry@originenergy.com.au Office: +61 2 9375 5991 Mobile: +61 401 710 367 Amit Ramdev Senior Manager, Investor Relations Email: amit.ramdev@originenergy.com.au Office: +61 2 8345 5221
Slide 34: Analyst Supporting Pack
Analyst Supporting Pack For personal use only FY26 Results Supplementary Information
Slide 35: Executing on our strategy
Ambitions and guidance Executing on our strategy For personal use only Ambition Achieved as at 30 June 2026 $100 - $150 million cost to serve reduction (FY26 vs FY24) $126m delivered (before retail acquisitions) 100 million licensed Kraken accounts (2027) 95 million contracted Kraken customer accoun
Slide 36: FY27 Guidance - Energy Markets and Octopus Energy
Ambitions and guidance FY27 Guidance - Energy Markets and Octopus Energy For personal use only The following guidance is provided on the basis that market conditions and the regulatory environment do not materially change. Energy Markets Share of Octopus Energy • The UK Retail business is expected t
Slide 37: FY27 Guidance commentary - Integrated Gas
Ambitions and guidance FY27 Guidance commentary - Integrated Gas The following guidance is provided on the basis that field performance, market and regulatory conditions do not materially change. For personal use only APLNG 100% Integrated Gas - Other FY26 FY26 FY27 • As at 3 August, approximately 4
Slide 38: FY27 Guidance - Capex
Ambitions and guidance FY27 Guidance - Capex For personal use only Origin capex ($m) • Total Origin capex for FY27 is expected to be $450 – $650 million, subject to timing of payments to key suppliers around 1,473 year end. – Growth capex is expected to be $250 – $350 million, primarily relating to
Slide 39: Items excluded from Underlying Profit
Financial information Items excluded from Underlying Profit For personal use only Items excluded from Underlying Profit relate to: • Fair value and FX movements Reconciliation from Statutory to Underlying Profit ($m) • Impairments relating to generation development projects and amounts owing to Orig
Slide 40: Underlying Profit
Financial information Underlying Profit For personal use only Movements in Underlying Profit ($m) (57) 298 (260) (185) 14 (101) (39) 1,490 1,159 FY25 EM Share of Octopus IG - Share of IG - Other Corporate D&A Tax/other FY26 EBITDA Energy profit APLNG profit EBITDA EBITDA 13 Aug 2026 | Origin FY26 in
Slide 41: Energy Markets EBITDA higher
Financial information Energy Markets EBITDA higher For personal use only Movements in Underlying EBITDA ($m) 44 56 23 24 16 (27) • Electricity gross profit +$179 million reflecting: 65 (180) 278 • lagged impact of higher wholesale costs flowing into customer tariffs, • lower cost of energy primarily
Slide 42: Integrated Gas EBITDA driven by lower LNG prices & trading gains
Financial information Integrated Gas EBITDA driven by lower LNG prices & trading gains For personal use only Movements in Underlying EBITDA ($m) (13) (424) 103 (72) 9 (197) 13 Share of APLNG EBITDA down $397 million: • Lower LNG prices, LNG volumes and domestic revenues partially 2,202 offset by low
Slide 43: Share of Octopus Energy EBITDA up year-on-year
Financial information Share of Octopus Energy EBITDA up year-on-year Movements in Underlying EBITDA ($m) For personal use only (16) • UK Retail: 21 − Non-repeat of FY25 one-offs: extreme weather in FY25 (+$62m); accounting changes and the price guarantee subsidy (+$51m) (31) 4 (36) 15 − Customer gro
Slide 44: Segment summary
Financial information Segment summary For personal use only Energy Markets Share of Octopus Integrated Gas Integrated Corporate Total Energy ($m) - Share of APLNG Gas - Other FY26 FY25 FY26 FY25 FY26 FY25 FY26 FY25 FY26 FY25 FY26 FY25 Underlying EBITDA 1,701 1,404 (8) (88) 1,478 1,875 142 327 (93) (
Slide 45: Underlying ROCE – 24-month rolling
Financial information Underlying ROCE – 24-month rolling For personal use only As at 30 June 2026 30 June 2025 Change Change ($m) ($m) ($m) (%) Capital Employed Net assets 10,134 9,919 216 2% Adjusted net debt 4,852 4,654 197 4% Net derivative (asset)/liability 608 (109) 717 (660%) Origin's share of
Slide 46: Reconciliation of Adjusted Net Debt
Financial information Reconciliation of Adjusted Net Debt For personal use only Issue Issue Hedged Hedged AUD $m AUD $m AUD $m $m Currency Notional Currency Notional Jun-26 Jun-26 Jun-26 Interest bearing Debt & CCIRS Adjusted net liabilities2 FV adjustments debt AUD debt AUD 2,075 AUD 2,075 2,055 2,
Slide 47: Energy Markets segment revenue reconciliation
Financial information Energy Markets segment revenue reconciliation For personal use only The table below reconciles the difference between segment revenue and customer revenue disclosed in the Electricity, Natural Gas, LPG, Energy Services & Internet and Future Energy tables. FY26 FY25 Change Chang
Slide 48: Customer account movements
Energy Markets support Customer account movements For personal use only 30 Jun 30 Jun Electricity ('000) Customer accounts ('000) as at Change 2026 2025 100 80 Electricity 2,926 2,792 134 60 Business 21 22 (1) 40 Retail – Mass Market 2,697 2,563 133 20 - Retail – Community Energy Services 208 207 1
Slide 49: Electricity forward price by State
Energy Markets support Electricity forward price by State ($/MWh) For personal use only 150 NSW 150 VIC 130 130 110 110 90 90 70 70 50 50 May-24 Aug-24 Nov-24 Feb-25 May-25 Aug-25 Nov-25 Feb-26 May-26 Aug-26 May-24 Aug-24 Nov-24 Feb-25 May-25 Aug-25 Nov-25 Feb-26 May-26 Aug-26 150 QLD 150 SA 130 130
Slide 50: Cap prices by State
Energy Markets support Cap prices by State ($/MWh) For personal use only 40 NSW 40 VIC 35 35 30 30 25 25 20 20 15 15 10 10 5 5 May-24 Aug-24 Nov-24 Feb-25 May-25 Aug-25 Nov-25 Feb-26 May-26 Aug-26 May-24 Aug-24 Nov-24 Feb-25 May-25 Aug-25 Nov-25 Feb-26 May-26 Aug-26 40 QLD 40 SA 35 35 30 30 25 25 20
Slide 51: Origin's 'energy' position
Energy Markets support Origin’s ‘energy’ position For personal use only Illustrative Origin energy position ‘Energy prices’ are defined here as NEM pool prices TWh <$300/MWh • Impact within a financial year Losses Short / pool pass through − Customer tariffs largely fixed at start of financial year
Slide 52: Origin's 'capacity' position
Energy Markets support Origin’s ‘capacity’ position For personal use only Illustrative Origin capacity position MW ‘Capacity prices’ are defined here as prices for contracts Maximum that strike at NEM pool prices >$300/MWh demand Capacity • Impact within a financial year Contracts Only hedges in-yea
Slide 53: Battery developments on track (both on time and cost)
Energy Markets support Battery developments on track (both on time and cost) For personal use only Estimated FY26 Total Capacity Storage Pre FY26 Project Type State Commercial capex Capex (MW) (MWh) capex Operations ($m) ($m) Eraring stage 1 + stage 3 Build & own 460 1,770 NSW 24-Dec-25 731 113 ~850
Slide 54: Contracted gas supply
Energy Markets support Contracted gas supply For personal use only Contracted gas supply Origin’s contracted gas transportation network 200 PJ Beetaloo LNG Exports 150 QLD 100 CSG Moomba SWQP Wallumbilla 50 - FY26 FY27 FY28 FY29 FY30 FY31 FY32 1 1 APLNG legacy contract Fixed Price Price review/marke
Slide 55: APLNG sources and uses
Integrated Gas support APLNG sources and uses For personal use only APLNG (100%) Unit FY26 FY25 Change % Change Sources and Uses of Gas Operated Spring Gully PJ 83.0 84.2 (1.2) (1%) Reedy Creek, Combabula and Peat PJ 190.5 187.6 2.9 2% Condabri, Talinga and Orana PJ 267.0 281.9 (14.9) (5%) Total ope
Slide 56: APLNG sales summary
Integrated Gas support APLNG sales summary For personal use only APLNG (100%) Unit FY26 FY25 Change % Change LNG LNG production PJ 529.2 533.5 (4.3) (1%) Changes in LNG inventory PJ 0.9 0.4 0.5 121% LNG contract sales PJ 481.8 493.3 (11.5) (2%) LNG spot sales PJ 48.3 40.7 7.6 19% Total LNG sales vol
Slide 57: APLNG sales mix and LNG price review
Integrated Gas support APLNG sales mix and LNG price review For personal use only Legacy domestic contracts: FY26 FY25 Sales mix (100%) • Domestic legacy contract customers include Origin PJ % PJ % (expiring 2034), Rio Tinto (2031), QAL (2041) and Contract LNG 482 73% 493 74% QGC (2035) Spot LNG 48
Slide 58: APLNG daily production by field (TJ/d)
Integrated Gas support APLNG daily production by field (TJ/d) For personal use only Condabri, Talinga, Orana Reedy Creek, Combabula, Peat 900 600 800 500 700 400 600 300 500 400 200 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun FY25 FY26 FY25 FY26 Sp