Q2 2026 Overview &Unaudited Group Financial Update

About this update from Prospex Energy Plc

Prospex Energy plc / Index: AIM / Epic: PXEN / Sector: Oil and Gas   3 August 2026   Prospex Energy plc ("Prospex" or the "Company")   Second Quarter 2026 Overview and Unaudited Group Financial Update   Prospex Energy PLC (AIM: PXEN), the AIM quoted investment company focused on European natural gas and power projects, provides the following Q2 overview and unaudited quarterly cash-flow update for the Prospex group of companies (the "Group"), including Group cash balances under the Company's direct control at June 30th, additions to investments and receipts from gas sales for the second quarter of 2026.   Q2 2026 Overview Cash ·    £1,203,000 of gas sales revenue from Selva Malvezzi reflecting higher European gas prices since March. ·    The Group closed Q2 with £852,000 (Q1 2026: £907,000) in cash after paying initial licence fees for newly awarded licences in Poland and settling Selva 2025 production royalty and tax obligations. Romeral ·    Electricity generation revenue at Romeral continues to increase following a series of extended production tests and strengthening electricity prices. This has reduced Tarba's net monthly funding requirement, with the reduction expected to continue into Q3. In parallel, we continue to engage with the Spanish government to advance permitting. ·    The Company entered into a strategic collaboration agreement with the IMMAGE (Investigating Miocene Mediterranean-Atlantic Gateway Exchange) Land-2-Sea drilling project to recover cores from the wells to be drilled by Prospex within the five well programme which is currently awaiting permits. The coring is funded by the International Continental Scientific Drilling Program (ICDP).  Viura ·    During the quarter, operator HEYCO Energy Iberia advanced the dynamic reservoir model and defined several development scenarios for further drilling activity in 2027. Poland ·    Wholly owned Polish subsidiary, PXEN Tatra Sp. z o.o. was awarded, and accepted, the San and Dunajec licences in Poland. These offer both medium-term gas exploration potential and near-term cash-generative oil development potential in the Mniszów oil resource. Corporate ·    Satisfactory completion of 2025 audit and Annual General Meeting ("AGM") requirements. An extensive review of the Group's cost base and ongoing active measures were put in place to minimise costs, whilst identifying and developing assets and strengths. ·    Simon Ashby-Rudd was appointed as non-executive director, bringing significant capital markets and acquisitions expertise. Andrew Hay, who has served as a non-executive director of the Company since 2024, did not stand for re-election at the Company's AGM and stepped down from the board. ·    Creation of full potential modelling for each asset and the associated investment cases in support of engagement with prospective partners and investors. ·    Ongoing review of potential new investments with self-funding and near-term cash-generative potential. ​ Prospex Energy Group - Unaudited   2026   2025 ALL GBP 000's   YTD Total   Q2 Q1   Total   £000's £000's £000's £000's Note  Group Cash on Hand at Beginning of period 1                42              907                42          1,192  Share of Gross Operating Revenue 2          2,115          1,203              912          3,798  Tarba Cash Take-on in acquisition                 -                   -                   -                332  Equity Raise Proceeds Net of costs                 -                   -                   -            1,118  Debt Raise Cash Proceeds net of costs 3          1,355                 -            1,355              378  Interest and other financing receipts              112                83                29              122  Total Group Cash Receipts            3,583          1,286          2,297          5,749  OPEX 4          1,349              547              802          2,303  Development Costs 5              301                  1              300              593  Investments - Tarba Acquisition                 -                   -                   -                474  Investments - Interest bearing loans to Tarba 6              558              267              292              748  Investments - Viura                 -                   -                   -            2,003  Debt Servicing and Repayments                 -                   -                   -                   -    Royalties, taxes and license fees 7              564              526                38              778  Total Group Cash Outgoings            2,772          1,341          1,432          6,899  Group Cash on Hand at End of period                852              852              907                42   1 Group cash represents the cash resources within the Company's control and therefore excludes any cash balances held by HEYCO Energy Iberia, in which Prospex owns 7.5%, and funds held in guarantee deposits. 2 Gross operating revenues only include receipts into group entities under Prospex control and therefore excludes Viura. 3 Debt raise proceeds are shown net of costs & any pre-existing debt satisfied by issuance of CLNs. 4 OPEX includes direct operating expenditure corresponding to Prospex's net share of Selva Malvezzi, as well as Prospex overhead and administration costs. 5 Development costs in 2026 primarily relate to seismic processing on Selva Malvezzi. 6 Tarba Energia Opex, net of electricity sales, is supported while the activity to deliver drilling permits on El Romeral is progressing. 7 Q2 2026 includes £177k new permit fees in Poland.   Selva Malvezzi Continued safe and reliable production from the Podere Maiar-1 (PM-1) gas field ·    Environmental Impact Assessment (EIA) lodged with Italy's Ministry of Environment and Energy Security (MASE) for the proposed four-well drilling programme and related development within the Selva Malvezzi Production Concession; representing a significant permitting milestone. ·    Data processing of the recently completed 3D seismic survey continued during the quarter, supporting optimal well placement and future field development planning, including the Podere Maiar 1 gas field production area. ·    Strong realised gas prices of €0.48/scm, benefiting from supportive European gas market fundamentals amid ongoing energy security concerns.   Selva Malvezzi financial highlights   PM-1 Production Data June 2026 Quarter Mar 2026 Quarter Dec 2025 Quarter Q2 2026 Q1-2026 Q4 2025 Average gross daily production rate (scm) 77,127 80,687 79,220 Quarterly net (37%) production ('000 scm) 2,597 2,686.90 2,579.40 Weighted average price (per scm) € 0.48 € 0.43 € 0.33 37% Revenue net to Prospex ('000)* € 1,255 € 1,155 € 852 * Note: revenue net to Prospex in the quarter will differ from cash receipts presented in the unaudited cashflow analysis due to timing of payments received Poland Historical data was gathered and integrated to provide a clear view of the potentially recoverable resource at the Mniszów oil discovery. This increased the Company's view of the asset's potential to 3.7 mmbbl of recoverable oil and supported the case presented within the Full Potential analysis at the AGM in June.   El Romeral, Spain Over the quarter, a series of production tests were conducted to better understand the well's ability to support increased generation activity. This has increased generation from 4 hours per day to 15 hours per day during late June and July following the end of the quarter.   Combined with higher electricity prices, revenue generated at Tarba increased from c. €20,000 in April 2026 to c. €73,000 in June 2026. This has significantly reduced the need for Prospex support, freeing cash for investment in other assets. The manufacture of the new transformer is complete and it will be installed in September, replacing the rental unit and reducing overheads further at Tarba.   Viura, Spain During the quarter, operator HEYCO Energy Iberia advanced the dynamic reservoir model and defined several development scenarios. The production strategy was set to maximise cash generation by taking advantage of high gas prices.   Viura Production Summary Jun '26 May '26 April '26 Q1 2026 Sales Gas Nm 3                    1,959,552                    2,973,296                        843,966                    10,500,000 Sales Gas MWhr                                  26,592*                          39,644                          11,660                          112,000 Condensate m3                                  88                                142                                  40                                  446 Condensate bbl                                553                                892                                248                               2,805 Water m 3                            7,656                            7,099                            2,276                            16,645 *June sales gas expressed in MWhr is estimated, pending confirmation   Tom Reynolds, Prospex's CEO, commented: "I am pleased to provide shareholders with an overview of Q2 2026 activities, including unaudited Group cash-flow figures for the period. During Q2, we reevaluated our investment portfolio, made significant progress on each asset, and conducted detailed analysis of the investment options available to us.   "During the quarter, strong European gas prices have supported higher levels of cash generation at Selva Malvezzi. We have also seen higher wholesale electricity prices for Tarba, where the team worked diligently through Q2 to increase total generation time and minimise costs. This has increased Tarba's net revenue, reduced the monthly cash requirement and freed up cash for other assets.   "On Mniszów, significant work has been carried out by the team to understand and estimate the in-place resources and identify potential technical solutions to efficiently access those resources. I believe this asset offers a near-term opportunity to introduce partnership capital to fund initial well work.   "The AGM provided an opportunity to demonstrate the full potential of the Prospex portfolio, which I believe will strengthen our ongoing discussions with prospective funding and strategic partners. To support this process, and as indicated at the AGM, we will run a series of asset-focused online presentations beginning in September providing a detailed review of each asset."   The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended by virtue of the Market Abuse (Amendment) (EU Exit) Regulations 2019. Prospex Energy is an Investment entity as defined by IFRS 10, and as such the results of its subsidiaries are not consolidated up to the parent company in its statutory and audited reporting. Those audited financial statements therefore represent the financial position of the Company on a standalone basis, and the Company's investments in its subsidiaries, joint ventures and underlying assets are recognised at fair value through the profit and loss. The unaudited figures included in this presentation, are not provided to meet any statutory or regulatory requirement and should not be used as a basis of an investment decision. * * ENDS * *   For further information visit www.prospex.energy or contact the following:   Tom Reynolds Prospex Energy PLC Tel: +44 (0) 20 7236 1177 Ritchie Balmer Rory Murphy Strand Hanson Limited Tel: +44 (0) 20 7409 3494 Andrew Monk (Corporate Broking) Andrew Raca (Corporate Finance) VSA Capital Limited Tel: +44 (0) 20 3005 5000 Neil Passmore Leif Powis Hannam & Partners Tel: +44 (0) 20 7907 8500 Ana Ribeiro / Charlotte Page St Brides Partners Limited  Tel: +44 (0) 20 7236 1177   About Prospex Energy Prospex Energy plc is an AIM-quoted investing company focused on high-impact onshore and shallow offshore European opportunities with short timelines to production.  The Company's strategy is to acquire undervalued projects with multiple, tangible value trigger points that can be realised within 12 months of acquisition and then apply low-cost re-evaluation techniques to identify and de-risk prospects.  The Company will rapidly scale up gas production in the short term to generate internal revenue, which can then be deployed to develop the asset base and further increase production.

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