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Mendell Helium #MDH – Proposal to install 1,000 Mcf/day helium production facility at Rost

Mendell Helium is pleased to announce that M3 Helium Corporation (“M3 Helium”) has received a non-binding proposal with a leading helium producer to install equipment to recover and sell helium at its Rost 1-26 well (“Rost”) and the nearby Rost twin well (“Rost Twin”) where drilling has recently finished in the Fort Dodge region of Kansas, USA (the “Facility”). 

Highlights

·    Proposal to install the Facility to recover and sell helium on the Rost site

·    The Facilty would support production from Rost and the Rost Twin

·    Phase 1: The Facility is being initially designed at 1,000 Mcf/day of raw gas with 5% helium content which equates to around 50 Mcf/day of helium production based on Rost’s gas composition

·    Phase 2: The Facility could be expanded to accommodate future growth from M3 Helium wells in the Fort Dodge region

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells. There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. The Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 30 April 2026. 

Under the terms of the non-binding proposal, M3 Helium will contract with a leading third party helium processor to facilitate the installation of equipment to recover and sell helium at Rost and the Rost Twin. Phase I of the Facility will be designed to process 1,000 Mcf of raw gas per day. Upon a successful drilling programme by M3 Helium in Fort Dodge. Phase II will incorporate expansion to allow for material incremental throughput from nearby wells and, with that, additional helium production and sales into what has become a constrained helium market. 

M3 Helium’s obligations would be to provide a sufficient space on site to accommodate a larger PSA and compression facilities to load tube trailers as well as access to the 3-phase power that is already in place. M3 Helium is also obliged to deliver a gas stream from the wells that is suitable for use in a PSA meaning that some limited pre-treatment may be required.

The proposal includesa fee structure whereby processing fees are expected to be the greater of a fixed monthly amount and a percentage of helium revenues, together with an additional marketing fee.  This structure ensures that higher production levels by M3 Helium are expected to have lower incremental costs. The proposal has a four year term and is renewable thereafter. 

Subject to execution of definitive agreements, M3 Helium will have several redundant items of equipment at Rost, including its own PSA.  These are intended to be redeployed on future wells.  Full installation of the new Facility is expected to take around four months subject to availability and lead time for necessary equipment – M3 Helium will continue to operate its own surface purification equipment until that time. Further announcements will be made in due course following the execution of definitive agreements and updates in relation to the development of the proposed Facility.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “In another validation of M3 Helium’s operations at Rost and the Rost Twin, this proposed collaboration with a leading helium producer represents a significant expansion of operations. The proposal received from M3 Helium’s partner to size the facilities at 1,000 Mcf/day illustrates its view of the potential of the two Rost wells.

“The conflict in the Middle East has generated some speculation on the direction of helium prices.  Whatever the short term benefits may be to helium producers, the long term opportunity centres on the fragility of global helium supplies.  Working with an industry partner to produce purified helium at M3 Helium’s well site represents a significant commercial advantage.

“Completion and perforation operations will shortly be underway for the Rost Twin and both Rost wells will be serviced by the facilities already in place at Rost before this proposed redevelopment.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching videosummaries and seeing what other shareholders have to say. Navigate to our Interactive Investorwebsite here: https://mendellhelium.com/link/PKa6Ve 

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a

Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880

SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500

 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge / Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell / Colin Rowbury / Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Mendell Helium #MDH – Update on drilling the Rost twin well

Mendell Helium is pleased to announce the successful conclusion of drilling operations at M3 Helium Corporation’s (“M3 Helium”) new twin well to the existing Rost 1-26 well (“Rost”) in Fort Dodge, Kansas.

Highlights

  • Rost 2-26 well (“Rost Twin”) reached total depth of 5,571 feet
  • Mass spectrometer evidences helium with low hydrocarbon signatures in several zones
  • Completion process, including perforating the well, will begin in the next 10 days
  • Second jumbo tube trailer identified for lease to support expected increase in production
  • Commitments received from US investors to fund 35% of the Rost Twin

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells. There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. The Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 30 April 2026.

Rost Twin

Drilling operations at the Rost Twin have concluded at total depth of 5,571 feet. Completion with larger 7 inch casing has been successful with this part of the project being both on budget and on time.

M3 Helium employed a mass spectrometer, coupled with gas detection equipment, to assess the prospective hydrocarbon gases, hydrogen and helium in the Rost Twin. Very encouragingly, the mass spectrometer recorded several shows of helium in different potential production zones within the well.  The helium was detected with low hydrocarbon signatures supporting M3 Helium’s theory that the helium-rich sands from which Rost produces extend to the Rost Twin.

Preparations are now underway for completion and perforation of the Rost Twin, with work expected to commence in the next 10 days.  Although Rost produces only from the Morrow sands,  for the Rost Twin, M3 Helium will examine perforating other potential production zones based on results from the mass spectrometer and gas analyses to be performed during completion.  The Rost Twin was drilled with larger casing to support enhanced production and M3 Helium will use that flexibility in determining the extent of perforations. Certain of the zones where helium has been detected may require stimulation, most likely with an acid frack, and this will also be established in the completion process.

Following completion, the electric submersible pump that was previously used to de-water Rost, will be installed in the Rost Twin.

In preparation for increased production from the Rost wells, M3 Helium has also identified an additional jumbo tube trailer for lease.  This would take its fleet to two trailers, each with a capacity of 160 Mcf, and therefore would ensure no interruption to production in between deliveries.

As previously announced, M3 Helium received interest from high net worth US investors to co-fund the Rost Twin and M3 Helium has now entered into a series of binding agreements with Rixford Resources LLC (“Rixford”), representing the investors, in relation to the development of the Rost Twin well (the “Rost Agreements”).  The Company closed applications prior to the results of the mass spectrometer being known at which time Rixford confirmed that it had received commitments for 35% of the expected costs for the Rost Twin and the upgrade of the Brobee salt water disposal well, being US$372,000 in aggregate.  These commitments will now be validated and payments will be remitted to M3 Helium in line with the work programme. Pursuant to the Rost Agreements, Rixford will acquire a 35% working interest in the Rost Twin well.

The funding is for the wells only and not for the surface helium purification facility installed at Rost.  M3 Helium will charge Rixford a processing fee equal to 20% of their share of the helium produced from the Rost Twin.  Rixford has an option to acquire a 50% interest in the PSA at development cost and, if it elects to do so the processing fee would cease.

Under the Rost Agreements, Rixford has been granted a right of first refusal to participate in up to five future wells drilled by M3 Helium or its affiliates in Kansas on substantially the same terms as the Rost Agreements.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “The decision to drill the Rost Twin has been thoroughly vindicated by positive helium detection in several zones.  As M3 Helium now moves towards completing and perforating the well, these early signs are that the Rost Twin has indications of being a successful production well.  With the 7 inch casing supporting greater production levels than have been achieved at Rost, this is a significant opportunity for M3 Helium and paves the way for the ongoing development of the Fort Dodge region.

“The next project will be the recompletion of the Schneweis Ventures 13A well with Ritchie Exploration, Inc. and thereafter the development of the Bleumer and Enlow leases, with a production permit already secured for the first well on Enlow.

“We are also pleased to welcome Rixford as investors in M3 Helium’s projects.  This first successful conclusion of funding new wells at the project level paves the way for a faster roll out of operations through an innovative non-dilutive funding mechanism.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here: https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge / Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell / Colin Rowbury / Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Mendell Helium #MDH – Update on drilling the Rost twin well and update on move to AIM

Mendell Helium is pleased to announce an update on M3 Helium Corporation’s (“M3 Helium”) ongoing drilling of the new twin well to the existing Rost 1-26 well (“Rost”) in Fort Dodge, Kansas. The Company also provides an update on the timing of its proposed move to AIM.

Highlights

  • Rost 2-26 (“Rost Twin”) reaches 4,540 feet after one week of drilling
  • On site team will monitor the Rost Twin for helium shows in the final stages of drilling
  • In addition to Morrow sands, the Rost Twin will test other helium prospects
  • Design process for upgrade of Brobee salt water disposal well underway
  • Preparations also underway for re-completion of the Schneweis Ventures 13A well (“Schneweis”) with Ritchie Exploration, Inc. (“Ritchie”)
  • AIM admission document now expected to be published in April 2026

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells. There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. The Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 30 April 2026.

Rost Twin

M3 Helium commenced preparations for the Rost Twin in the week of 16 March 2026 with drilling starting the following week.  The first seven days of drilling operations has proceeded smoothly with the well now at 4,540 feet with a targeted terminal depth of approximately 5,600 feet.

The Rost Twin is being completed with larger 7 inch casing which is expected to enable greater water removal and which in turn is expected to increase gas production.

In the final stages of drilling, M3 Helium will use a mass spectrometer to detect helium shows in the different formations of the Rost Twin.  Similar to Rost, the primary target is the helium-rich Morrow sands but account will also be taken of formations above, and potentially below, in determining the extent of perforations for future production.

M3 Helium is also finalising designs for the upgrade of the Brobee salt water disposal well (“Brobee”) to access the deeper Arbuckle formation.  This is expected to considerably enhance Brobee’s water disposal capacity – above its current permitted level of 5,000 barrels per day. The 30 day permitting process for the upgrade will shortly be initiated but Brobee can continue to operate at its present capacity during that period.

Schneweis

Further to the announcement on 25 March 2026, preparations are underway with Ritchie for the re-completion of Schneweis.  This development will also require a salt water disposal well into the Arbuckle formation and Ritchie and M3 Helium are expecting operations to commence in May 2026.

Update on proposed move to AIM and completion of acquisition of M3 Helium

The rapid acceleration of M3 Helium’s progress, including the Rost Twin and the partnership with Ritchie, has added further workstreams to the forthcoming AIM documentation and, recognising that, Mendell Helium is now targeting publication of its AIM admission document during April 2026.  As previously announced, following publication of the AIM admission document, the Company will hold a general meeting (the notice period for which is 14 clear days) and accordingly admission to trading on AIM remains targeted for late April 2026. Mendell Helium will make further announcements in due course.

Also as previously announced, the Company intends to exercise the Option to acquire M3 Helium on the date of admission to trading on AIM.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “The developments across M3 Helium’s business are gaining pace and, in particular, the speed at which the Rost Twin is being drilled adds considerable confidence to the proposed Fort Dodge field development plan. 

“Needless to say, we acknowledge that our move to AIM has taken longer than originally hoped but, conversely, the growth in M3 Helium’s Kansas operations has not only exceeded our expectations but also remains the priority, particularly in light of the ongoing and potentially severe disruptions in global helium market.  It is still too early to predict exactly how helium pricing will change as a result of the conflict in the Middle East but what is apparent is that it has exposed some fragility in both international and national helium supply chains.  There will be an advantage to helium producers over the coming months in partnering with leading gas processors and we are determined to position M3 Helium prominently in the market.

“I can assure all of our investors that admission to trading on AIM is a very near term target for Mendell Helium and, alongside that, we are working to ensure that the Company continues to punch above its weight as we deal with much larger counterparties in the helium market.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here: https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell, Colin Rowbury, Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Mendell Helium #MDH – Agreement with Ritchie Exploration to recomplete Schneweis well

Mendell Helium is pleased to announce that, further to the announcements made on 9 December 2025 and 27 January 2026, M3 Helium Corporation (“M3 Helium”) has entered into an agreement with Ritchie Exploration, Inc. (“Ritchie”), a family owned oil and gas operator headquartered in Wichita, Kansas, to re-complete the Schneweis Ventures 13A well (“Schneweis”) in the Fort Dodge region of Kansas, USA, a well located around four miles south of Rost 1-26 well.

Highlights

  • Schneweis historically produced in excess of 300 Mcf/day before water constrained production
  • M3 Helium believes the well is suitable for the same de-watering technique successfully employed at its Rost 1-26 well (“Rost”)
  • M3 Helium will fund a new disposal well and recompletion of Schneweis in return for an initial 85% net profit interest in the project
  • If successful, the parties may work together on further Ritchie operated wells
  • Schneweis is connected to a pipeline, owned by Ritchie, so there is no requirement for helium purification facilities at surface and production revenues may include hydrocarbons as well as helium

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells. There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. The Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 30 April 2026.

Recompletion of Schneweis

As previously announced, M3 Helium believes that the Rost de-watering technique could be employed elsewhere in the Fort Dodge region and, towards the end of 2025, it commenced discussions with Ritchie to recomplete Schneweis, a well located around four miles south of Rost. A significant advantage of this method of expansion is that existing wells have evidenced prior flow rates and gas compositions. The parties have now entered into a binding contract and expect that work on Schneweis will commence in May 2026 following design and approval of the new disposal well that will be required for the project.

Schneweis has previously produced consistently over 300 Mcf/day before production was shut down due to significant water production. As with Rost, the target formation is the Morrow sands.  With a sustained de-watering programme and noting that Schneweis’ drill stem test exceed 10,000 Mcf/day, M3 Helium believes there is potential to increase production from historic levels.

Helium composition has been measured at 1.39% but, unlike Rost, there is a higher methane content of 70.06%.  Significantly Schneweis is connected to a pipeline owned by Ritchie and it is envisaged that all produced gas from the well will be delivered to that pipeline with no requirement for prior treatment. Accordingly, the economics of the well will include the sale of hydrocarbons as well as helium.

M3 Helium will fund the new disposal well and recompletion of Schneweis to earn an initial 85% net profit interest in the project.  Once M3 Helium has recovered 110% of its investment, the net profit interest falls to 70%. Ritchie is entitled to bring the arrangement between the parties to an equal (50%) net profit interest by reimbursing M3 Helium for 50% of the project costs.

Ritchie will remain as the operator of Schneweis.

About Ritchie Exploration

Ritchie Exploration, Inc. is a family owned oil and gas operator headquartered in Wichita, Kansas, with an operating history of almost 50 years. With 461 producing wells, 63 salt water disposal wells and monthly production of 37,900 barrels of oil and 27,800 Mcf of gas, Ritchie is one of the most significant regional operators in Kansas’ oil and gas sector.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “We are delighted to report the collaboration between M3 Helium and Ritchie Exploration.  The de-watering successfully employed at Rost has provided a pathway to redeveloping other parts of the Fort Dodge region and, specifically, previously operational wells that have been shut in.

“Partnering with Ritchie Exploration, one of the largest oil & gas producers in Kansas, is a powerful validation of the potential of the Fort Dodge region and M3 Helium’s operations. Assuming that the recompletion of Schneweis is successful, then we hope that M3 Helium’s relationship with Ritchie Exploration may extend to further wells in the region.

“It is also important to note the value of access to a pipeline for Schneweis. With no need for complicated surface purification facilities, we expect the production time, once work begins, to be considerably shorter and more economical than it has been for Rost.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here:https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge / Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell / Colin Rowbury / Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Mendell Helium #MDH – Update on new production wells at Fort Dodge

Mendell Helium is pleased to announce an update on drilling of further production wells proximate to M3 Helium Corporation’s (“M3 Helium”) Rost 1-26 well (“Rost”) in Fort Dodge, Kansas.

Highlights

  • Drill permits granted for both the Rost (twin well) and Enlow leases
  • Surface preparations commencing this week
  • Rig expected to be on site in the week commencing 16 March 2026

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells. There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. As announced today, the Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 30 April 2026.

Mendell Helium has received notification that the Kansas Corporation Commission has approved drill permits for both of M3 Helium’s proposed new production wells in Fort Dodge. These are for a twin well on the Rost lease and a new well on the Enlow lease to the north of Rost.  Both new wells will target the Morrow sands, the production zone of Rost, and both are planned to be drilled with 7 inch casing to enable greater water removal and, it is anticipated, greater gas production. As announced on 2 March 2026, a drilling contractor has been secured and a drilling contract has been executed by M3 Helium. Surface works in preparation for drilling are commencing this week and the rig itself is expected to be on site in the week of 16 March 2026.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “We are very pleased to report a rapid advance of the next phase of our operations.  Both drill permits were secured within a week and our preparations to drill M3 Helium’s next production well are now in place. This marks the beginning of M3 Helium’s field development plan in Fort Dodge, a region which has been validated as a potentially significant helium opportunity by the operations to date at Rost.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here:https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell, Colin Rowbury, Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Overview of M3 Helium

Mendell Helium announced on 27 June 2024 that it has entered into an option agreement to acquire the entire issued share capital of M3 Helium through the issue of 57,611,552 new ordinary shares in Mendell Helium to M3 Helium’s shareholders. The exercise of the option will constitute a reverse takeover pursuant to AQSE Rule 3.6 of the Access Rule Book and is subject to, inter alia, publication of an admission document.

M3 Helium’s flagship well, Rost 1-26, is in Fort Dodge, just to the east of Dodge City, Kansas.  It has been tested as containing 5.1% helium composition and a drill stem test yielded a maximum flow rate of approximately 2,900 Mcf per day.  M3 Helium owns a mobile Pressure Swing Adsorption production plant which has been installed on site and will be used to purify the produced helium. The plant is capable of processing up to 800 Mcf per day of raw gas and purifying it up to 99.999% helium although management believes on-site purification to around 75% will be more practical.

Water removed from Rost 1-26 is delivered to Brobee, a nearby disposal well that has been permitted at 5,000 barrels of water per day at 1,200 psi.

Production at Rost 1-26 commenced in early November 2025 and the most recently recorded flow rate in December 2025 was 250 Mcf per day equating to approximately $1.4 million of helium per year.

M3 Helium also has interests in five producing wells (Peyton, Smith, Nilson, Bearman and Dimmitt) within the Hugoton gas field in South-Western Kansas, one of the largest natural gas fields in North America. Significantly these wells are in the proximity of a gathering network and the Jayhawk gas processing plant meaning that producing wells are all tied into the infrastructure.

M3 Helium is also developing a Bitcoin mining operation in Nebraska where it has taken a lease of land prospective for biogenic methane and has drilled a pilot well (Jasper).  It is onboarded for custody with Bitgo Inc. and its Bitcoin treasury management policy is available at https://mendellhelium.com/bitcoin-treasury.

Forward Looking Statements

These forward-looking statements are not historical facts but rather are based on the Company’s current expectations, estimates, and projections about its industry; its beliefs; and assumptions. Words such as ‘anticipates,’ ‘expects,’ ‘intends,’ ‘plans,’ ‘believes,’ ‘seeks,’ ‘estimates,’ and similar expressions are intended to identify forward-looking statements. These statements are not a guarantee of future performance and are subject to known and unknown risks, uncertainties, and other factors, some of which are beyond the Company’s control, are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements. The Company cautions security holders and prospective security holders not to place undue reliance on these forward-looking statements, which reflect the view of the Company only as of the date of this announcement. The forward-looking statements made in this announcement relate only to events as of the date on which the statements are made. The Company will not undertake any obligation to release publicly any revisions or updates to these forward-looking statements to reflect events, circumstances, or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

Important Notices

Mendell Helium plc (the “Company”) intends in the future to invest surplus cash and hold treasury reserves in bitcoin. Bitcoin is a type of cryptocurrency or crypto asset. Whilst the Board of Directors of the Company considers holding bitcoin to be in the best interests of the Company, the Board is aware that the financial regulator in the UK (the “Financial Conduct Authority” or “FCA”) considers investment in bitcoin to be high risk. However, the Board of Directors of the Company consider bitcoin to be an appropriate store of value and growth for the Company’s reserves and, accordingly, the Company may in the future be materially exposed to bitcoin. Such an approach is innovative, and the Board of Directors of the Company wish to be clear and transparent with prospective and actual investors in the Company on the Company’s position in this regard. An investment in the Company is not an investment in bitcoin, either directly or by proxy.

The Company is neither authorised nor regulated by the FCA and cryptocurrencies (such as bitcoin) are unregulated in the UK. As with most other investments, the value of bitcoin can go down as well as up, and therefore the value of bitcoin holdings can fluctuate. The Company may not be able to realise any future bitcoin exposure for the same as it paid in the first place or even for the value the Company ascribes to bitcoin positions due to these market movements. As bitcoin is unregulated, the Company is not protected by the UK’s Financial Ombudsman Service or the Financial Services Compensation Scheme.  Prospective investors in the Company are encouraged to do their own research before investing.

Mendell Helium #MDH – Operations update, plus update on move to AIM and Option Extension

Mendell Helium is pleased to announce an update on its proposed strategy for the development of further production wells proximate to M3 Helium Corporation’s (“M3 Helium”) Rost 1-26 well (“Rost”) in Fort Dodge, Kansas. The Company also provides an update on the timing of its proposed move to AIM.

Highlights

  • Drilling contract agreed and rig secured
  • Drilling of M3 Helium’s next Fort Dodge well will commence in March 2026
  • Drill permits filed for both the Rost and Enlow leases
  • Brobee salt water disposal well to be upgraded
  • In addition to Morrow sands, these new wells will target new deeper helium prospects
  • Headline terms agreed with US investor group to co-fund the Rost twin well
  • Agreement in principle with local operator to co-develop a nearby shut-in well
  • AIM admission document targeted for publication in March 2026
  • Option to acquire M3 Helium extended to 30 April 2026

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells. There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. As announced today, the Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 30 April 2026.

Developing Fort Dodge

During recent months, Mendell Helium has been analysing prospective drilling programmes in Fort Dodge, Kansas. This region already contains numerous existing oil & gas wells but several of these existing wells, despite exhibiting initially strong flow rates, quickly encountered water that ultimately constrained production. Mendell Helium has been examining locations where the Rost de-watering technique could be employed for successful production.

Rost

As announced on 27 January 2026, Mendell Helium is proposing a twin well on the Rost lease, to be completed with larger 7 inch casing thereby enabling greater water removal which in turn is expected to increase gas production.

Alongside the placing also announced on 27 January 2026, the Company is advancing discussions with a group of US high net worth investors to co-fund the twin well. Headline terms for that investment have now been agreed and a location for the twin well has been determined.  The landowner has been notified of these plans and M3 Helium has submitted a permit to drill application to the Kansas Corporation Commission (“KCC”). Alongside this, a drilling contractor has been secured and a drilling contract has been executed by M3 Helium.

At the time that the twin well is drilled, M3 Helium also intends to upgrade the Brobee salt water disposal well (“Brobee”) by opening up access to the deeper Arbuckle formation.  This is expected to considerably enhance Brobee’s water disposal capacity – above its current permitted level of 5,000 barrels per day. The expected cost of this is US$125,000 which would be borne by the US investor group on the basis they participate in the drilling of the twin well.  There is a 30-day permitting process for the upgrade but Brobee can continue to operate at its present capacity during that period.

Enlow

Mendell Helium had previously secured two leases, known as Bleumer and Enlow, in Fort Dodge to the north of Rost.  Both locations were identified as well logs from previous oil and gas operations had intercepted the Morrow sands, the production zone targeted by Rost.

In recent weeks, Mendell Helium has considerably developed its research on these areas and has identified a suitable location on Enlow for a new production well.  The landowner has been notified of the proposed well and M3 Helium has submitted a permit to drill application to the KCC.  The same drilling contractor for the Rost twin well is able to drill at Enlow and the order of these two new wells will shortly be determined.

Deeper formation

Based on the operations at Rost to date, Mendell Helium believes that helium-enriched nitrogen gas co-exists along with brine, throughout the approximately 700 foot thick Mississippian/Viola carbonate reservoir, resting below the Morrow formation. The upper portion of the Mississippian formation is commonly tested in the Fort Dodge area wells, but only a few deeper penetrations all the way through the unit have been conducted. Mendell Helium proposes to evaluate the entire deep sequence for helium and its carrying agent nitrogen gas.

As part of its forthcoming drilling plans, M3 Helium will explore this theory by drilling beyond the Morrow and deep into the Mississippian where it is believed a far more extensive reservoir of helium-enriched brine may be accessed. These plans are factored into the budgets of both the Rost twin well and the Enlow well and, if successful, represent an extension (and not an alternative) to the core production target of the Morrow. M3 Helium will equip the drilling rig’s mud processing system with a mass spectrometer measuring mud gas composition including helium and nitrogen and the  nitrogen/oxygen ratio to estimate for any air contamination.

Recompletion of existing well

As explained above, Mendell Helium and M3 Helium believe that the Rost de-watering technique could be employed elsewhere in the region and, as announced on 27 January 2026, it had commenced contract negotiations with a third party operator to recomplete a shut-in well owned by that party. As well as being a faster route to expansion, the directors believe that this strategy arguably has less risk in that existing wells have evidenced prior flow rates.  The parties have an agreement in principle and expect that this will be finalised during March 2026, enabling M3 Helium to set a date for that recompletion.

Operational developments

M3 Helium has been integrating the pressure swing adsorption unit (“PSA”) with the other surface facilities at Rost and the first stage of the PSA is ready for use. M3 Helium believes that could take helium concentrations in delivered gas into the range of 35 – 75%.  PSAs will, over time, be damaged by hydrocarbons as the adsorbent materials (zeolite in the case of M3 Helium’s PSA) will become less effective.  Operating a PSA long term in this manner will require regular replacement of adsorbents, thereby adding to cost and downtime.

M3 Helium has therefore examined several procedures for removing natural gas liquids (“NGLs”) from the wellhead gas stream – as well as supporting the operations of the PSA, extraction of the NGLs also creates a further revenue line for M3 Helium. Conventional methods have been determined as unreliable due to the presence of butane in the gas mix which has a lower boiling point than other NGLs.  However, M3 Helium is currently devising a solution based on gas membranes which it expects to be more cost effective and needing less maintenance than refridgeration units that are more typical in the industry.

Pending commissioning of its PSA, M3 Helium has utilised membrane separation units at Rost operating using the natural flowing pressure of the well and has achieved an improvement in concentration of the product gas to approximately 10.4 percent, roughly double the concentration of the native gas and thereby doubling the value of each tube trailer delivery of helium.

In preparation for the drilling of new production wells, M3 Helium is also assessing suitable pumps for de-watering. As previously announced, Rost began production with an electric submersible pump which was then replaced by a beam pump as water volumes dropped.  Beam pumps are cheaper to purchase and operate but do not necessarily have the capacity to perform the initial de-watering.  Other options, such as jet pumps, are also being examined as longer term solutions.

Update on proposed move to AIM and completion of acquisition of M3 Helium

Mendell Helium is targeting publication of its AIM admission document during March 2026. Following publication, the Company will hold a general meeting (the notice period for which is 14 clear days) and accordingly admission to AIM is targeted for April 2026. Mendell Helium will make further announcements in due course.

As previously announced, the Company and M3 Helium have agreed that the optimum date on which the Option should be exercised is the date of admission to AIM on the basis that this will be most efficient in terms of production of the required regulatory documentation. With this in mind, the Company and M3 Helium have agreed to extend the Option to 30 April 2026.

The date for repayment of the loan made by Mendell Helium to M3 Helium has been similarly extended to 30 April 2026. At the date of this announcement Mendell Helium has provided approximately US$1.75 million in loans to M3 Helium including accrued interest.

There are no other changes to the Option which will be exercised through the issue of 57,611,552 new ordinary shares in Mendell Helium to M3 Helium’s shareholders.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “The past month has seen a considerable step forward in several of our initiatives. We are now in sight of publication of the AIM admission document, culminating what has been a lengthy process which we have run alongside the ongoing development of M3 Helium’s operations in Kansas.

“Those operations are also reaching the next stage, building on our learnings from the Rost well in Fort Dodge. M3 Helium is currently obtaining permits to drill two new wells, one twinned at Rost itself and the other at the nearby Enlow lease, also believed to be prospective for the Morrow sands which have been so important to Rost. Alongside that, discussions to partner with a local operator in de-watering a shut-in well and bringing that back to production are progressing well.  March is expected to be a key period for operational and corporate progress for the Company.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here:https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell, Colin Rowbury, Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Overview of M3 Helium

Mendell Helium announced on 27 June 2024 that it has entered into an option agreement to acquire the entire issued share capital of M3 Helium through the issue of 57,611,552 new ordinary shares in Mendell Helium to M3 Helium’s shareholders. The exercise of the option will constitute a reverse takeover pursuant to AQSE Rule 3.6 of the Access Rule Book and is subject to, inter alia, publication of an admission document.

M3 Helium’s flagship well, Rost 1-26, is in Fort Dodge, just to the east of Dodge City, Kansas.  It has been tested as containing 5.1% helium composition and a drill stem test yielded a maximum flow rate of approximately 2,900 Mcf per day.  M3 Helium owns a mobile Pressure Swing Adsorption production plant which has been installed on site and will be used to purify the produced helium. The plant is capable of processing up to 800 Mcf per day of raw gas and purifying it up to 99.999% helium although management believes on-site purification to around 75% will be more practical.

Water removed from Rost 1-26 is delivered to Brobee, a nearby disposal well that has been permitted at 5,000 barrels of water per day at 1,200 psi.

Production at Rost 1-26 commenced in early November 2025 and the most recently recorded flow rate in December 2025 was 250 Mcf per day equating to approximately $1.4 million of helium per year.

M3 Helium also has interests in five producing wells (Peyton, Smith, Nilson, Bearman and Dimmitt) within the Hugoton gas field in South-Western Kansas, one of the largest natural gas fields in North America. Significantly these wells are in the proximity of a gathering network and the Jayhawk gas processing plant meaning that producing wells are all tied into the infrastructure.

M3 Helium is also developing a Bitcoin mining operation in Nebraska where it has taken a lease of land prospective for biogenic methane and has drilled a pilot well (Jasper).  It is onboarded for custody with Bitgo Inc. and its Bitcoin treasury management policy is available at https://mendellhelium.com/bitcoin-treasury.

Forward Looking Statements

These forward-looking statements are not historical facts but rather are based on the Company’s current expectations, estimates, and projections about its industry; its beliefs; and assumptions. Words such as ‘anticipates,’ ‘expects,’ ‘intends,’ ‘plans,’ ‘believes,’ ‘seeks,’ ‘estimates,’ and similar expressions are intended to identify forward-looking statements. These statements are not a guarantee of future performance and are subject to known and unknown risks, uncertainties, and other factors, some of which are beyond the Company’s control, are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements. The Company cautions security holders and prospective security holders not to place undue reliance on these forward-looking statements, which reflect the view of the Company only as of the date of this announcement. The forward-looking statements made in this announcement relate only to events as of the date on which the statements are made. The Company will not undertake any obligation to release publicly any revisions or updates to these forward-looking statements to reflect events, circumstances, or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

Important Notices

Mendell Helium plc (the “Company”) intends in the future to invest surplus cash and hold treasury reserves in bitcoin. Bitcoin is a type of cryptocurrency or crypto asset. Whilst the Board of Directors of the Company considers holding bitcoin to be in the best interests of the Company, the Board is aware that the financial regulator in the UK (the “Financial Conduct Authority” or “FCA”) considers investment in bitcoin to be high risk. However, the Board of Directors of the Company consider bitcoin to be an appropriate store of value and growth for the Company’s reserves and, accordingly, the Company may in the future be materially exposed to bitcoin. Such an approach is innovative, and the Board of Directors of the Company wish to be clear and transparent with prospective and actual investors in the Company on the Company’s position in this regard. An investment in the Company is not an investment in bitcoin, either directly or by proxy.

The Company is neither authorised nor regulated by the FCA and cryptocurrencies (such as bitcoin) are unregulated in the UK. As with most other investments, the value of bitcoin can go down as well as up, and therefore the value of bitcoin holdings can fluctuate. The Company may not be able to realise any future bitcoin exposure for the same as it paid in the first place or even for the value the Company ascribes to bitcoin positions due to these market movements. As bitcoin is unregulated, the Company is not protected by the UK’s Financial Ombudsman Service or the Financial Services Compensation Scheme.  Prospective investors in the Company are encouraged to do their own research before investing.

Mendell Helium #MDH – Unaudited Interim Results for the six months ended 30 September 2025

The unaudited interim results of Mendell Helium plc for the six months ended 30 September 2025 are presented below.

Highlights:

  • Administrative expenses of £550,000 reduced by 3.5% on prior year (2024: £570,000)
  • Retained loss of £505,000 reflects preparations for acquisition of M3 Helium Corporation (“M3 Helium”)

Post period operational highlights:

  • M3 Helium’s Rost 1-26 well (“Rost”) is producing helium in commercial quantities
  • Flow rate at Rost was measured in December 2025 at 250 Mcf per day – a 132% increase over the last measured rate in November 2025, equating to a potential value of approximately $3,800 of helium per day or approximately $1.4 million per year
  • Rost is now flowing gas even when the pump is turned off
  • Advanced discussions with a group of US based investors who have expressed interest in supporting M3 Helium in drilling a new production well in the Fort Dodge region
  • Agreement in principle with a local well owner to dewater and recomplete a currently disused well

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells.  There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. As announced 1 December 2025, the Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 28 February 2026. 

This announcement contains inside information for the purposes of UK Market Abuse Regulation and has been arranged for release by Eric Boyle, Chairman.  The Directors of the Company accept responsibility for the content of this announcement.

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here: https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell, Colin Rowbury, Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

Overview of M3 Helium

Mendell Helium announced on 27 June 2024 that it had entered into an option agreement to acquire the entire issued share capital of M3 Helium through the issue of 57,611,552 new ordinary shares in Mendell Helium to M3 Helium’s shareholders. The exercise of the option will constitute a reverse takeover and is subject to, inter alia, publication of an admission document.

M3 Helium’s flagship well, Rost 1-26, is in Fort Dodge, just to the east of Dodge City, Kansas. It has been tested as containing 5.1% helium composition and a drill stem test yielded a maximum flow rate of approximately 2,900 Mcf per day.  M3 Helium owns a mobile Pressure Swing Adsorption production plant which has been installed on site and will be used to purify the produced helium.  Once the plant is fully operational, it is capable of processing up to 800 Mcf per day of raw gas and purifying it up to 99.999% helium although management believes on-site purification to around 75% will be more practical.

Water removed from Rost 1-26 is delivered to Brobee, a nearby disposal well that has been permitted at 5,000 barrels of water per day at 1,200 psi.  M3 helium has installed four 500 barrel water tanks which receive the fluid before being pumped into Brobee.

Production at Rost 1-26 commenced in early November 2025 and the most recently recorded flow rate in December 2025 was 249.6 Mcf per day equating to approximately $1.4 million of helium per year.

M3 Helium also has interests in five producing wells (Peyton, Smith, Nilson, Bearman and Demmit) within the Hugoton gas field in South-Western Kansas, one of the largest natural gas fields in North America.  Significantly these wells are in the proximity of a gathering network and the Jayhawk gas processing plant meaning that producing wells are all tied into the infrastructure.

M3 Helium is also developing a Bitcoin mining operation in Nebraska where it has taken a lease of land prospective for biogenic methane and has drilled a pilot well (Jasper).  It is onboarded for custody with Bitgo Inc. and its Bitcoin treasury management policy is available at https://mendellhelium.com/bitcoin-treasury. 

Chairman’s Statement

I am pleased to present Mendell Helium’s interim results for the six-month period to 30 September 2025.  As investors will be aware, during 2024 we entered into an option agreement to acquire M3 Helium and have since concentrated our time and effort on developing its operations.  This has included supporting M3 Helium’s business through a loan of US$1.3 million (as at the period end) and the appointment of our CEO, Nick Tulloch, to M3 Helium’s board as chairman.

During the course of the period under review and throughout 2025, M3 Helium’s business has strengthened considerably.  In particular:

  • M3 Helium’s Rost 1-26 well (“Rost”) is producing helium in commercial quantities
  • Flow rate at Rost was measured in December 2025 at 250 Mcf per day – a 132% increase over the last measured rate in November 2025, equating to a potential value of approximately $3,800 of helium per day or approximately $1.4 million per year
  • Rost is now flowing gas even when the pump is turned off
  • Advanced discussions with a group of US based investors who have expressed interest in supporting M3 Helium in drilling a new production well in the Fort Dodge region
  • Agreement in principle with a local well owner to dewater and recomplete a currently disused well

During the period M3 Helium also drilled the Jasper well in Nebraska to a total depth of 1,680 feet using a cost effective open hole air completion method. The objective was to secure a low cost supply of methane to develop a bitcoin mining operation. To date, Japer has successfully produced gas flow but M3 Helium considers that further work would be required to ascertain sustainable water and gas production volumes. For now, M3 Helium will focus on developing its operations in Fort Dodge and will assess opportunities in Nebraska at a later date.

We are delighted with the successes that M3 Helium has achieved to date and, as the conclusion of the reverse takeover nears, we remain confident that Mendell Helium is well positioned to become a leading independent helium producer in the US.

Outlook

As we head into 2026, we have plenty to look forward to.  Our near term target is to complete our move to AIM where all required workstreams are either materially advanced or complete.  We intend to take the benefit of the Christmas vacation period to conclude any final information requests from our advisers so that we can hopefully enter the final straight in the new year.

Exercising the option to acquire M3 Helium will be classed as a reverse takeover and we took the decision some time ago to do this in conjunction with our move to AIM to avoid any duplication of regulatory documentation and therefore unnecessary cost.  We also stated that we believed the right time to move to AIM was once Rost was in production and, in this regard, our objective has been comprehensively achieved.  With a flow rate of 250 Mcf per day – a rate which has doubled in each of the past two months – M3 Helium enters 2026 with a well that has already exceeded the top end of our expectations.  Of course it would not be prudent to assume that the well continues to develop at the same rate but, irrespective of whether Rost develops further, M3 Helium already has an asset capable of producing around US$1.4 million of revenue per annum.  To put this in context, once the reverse takeover is complete, the income from the Rost well alone is expected to be capable of covering the entire group’s overheads.

Whilst Rost is an important asset for M3 Helium, the Company believes the broader opportunity extends well beyond this single well.  The Company notes the level of investor interest received to date; however, it considers the enquiries originating locally in Kansas to be of particular significance. These discussions are being conducted with industry participants who have direct operational insight and the ability to undertake site visits, which the Company views as a meaningful validation of M3 Helium’s operations. Alongside M3 Helium, we will continue to progress these discussions over the coming weeks.  They represent both a potential source of non-dilutive funding and an ability to expand M3 Helium’s portfolio of producing wells.

Our objective is clear. Being able to repeat the success of Rost with new wells in the Fort Dodge region would make Mendell Helium, subject to completion of the reverse takeover, a significant producer and also potentially a cash generative business.

M3 Helium is one of very few companies that is producing and selling helium.  This very valuable gas, with no known substitute, has understandably driven commercial and investor attention in recent years.  Finding it may be the first step but bringing it to surface and delivering it to market commercially is ultimately what counts.  Rost has validated an extensive development plan at Fort Dodge and we are confident that our move to AIM will highlight to the widerUK investor community this potentially valuable opportunity.

Our latest investor presentation is available to download at https://mendellhelium.com/activity-updates.

Eric Boyle

Chairman

22 December 2025

Financial Review

As noted above, Mendell Helium has an option to acquire M3 Helium, a producer of helium based in Kansas and which holds an interest in six producing wells.  However, investors should note that prior to Mendell Helium’s proposed reverse takeover of M3 Helium, the figures in the financials result below necessarily do not include any revenue contribution from that company.

The Company was incorporated on 12 November 2020 and, on 30 June 2021, trading in its ordinary shares commenced on the Aquis Stock Exchange Growth Market.  The comparatives reflect the equivalent period from last year and for the year ended 31 March 2025.

The Company reported a loss before tax of £526,000 in the six-month period to 30 September 2025 with the major contribution being administrative expenses of £550,000 which comprise the overheads of operating as a quoted company as well as travel costs to the US and preparations for the move to AIM.  Despite increasing activity in its support of M3 Helium’s business, administrative expenses were down by approximately 3.5 per cent. from the same period last year.   The Company has loaned funds to M3 Helium with US$1.3 million being outstanding at the period end and US$1.55 million being outstanding at 19 December 2025

Following on from its R&D award last year, the Company successfully applied for and was awarded an R&D tax credit of £21,000 for the financial year ending 31 March 2024.

Unaudited Consolidated Statement of Comprehensive Income
for the six months ended 30 September 2025
6 months to 6 months to Year ended
30 September 30 September 31 March
2025 2024 2025
£’000 £’000 £’000
Revenue                      –   169                –
Cost of sales                      –   (96)                –
Gross profit                      –   73                –
Administrative expenses (550) (570) (419)
Impairment of receivables                      –                         – (84)
Impairment of investments                      –                         – (450)
Other operating income                      –                         – 4
Operating loss (550) (497) (949)
Net finance expense 24 (9) 11
Gain / (Loss) from discontinued operations                      –                          – 224
Loss before tax (526) (506) (714)
Taxation 21 36 36
Loss after tax (505) (470) (678)
Loss per share (0.55p) (1.79p) (3.3p)

There was no other comprehensive income in the period.  All activities relate to continuing operations. 

Unaudited Consolidated Statement of Financial Position
at 30 September 2025
As at As at As at
30 September 30 September 31 March
2025 2024 2025
£’000 £’000 £’000
Non-current assets
Intangible assets                      –   43                           –
Tangible assets                      –   18                           –
Right-of-use assets                      –   490                           –
Trade and other receivables: falling due after one year 371 18 400
Total non-current assets 371 569 400
Current assets
Inventory                      –   95                           –
Trade and other receivables: falling due within one year 1,202 472 544
Other current assets 144                          – 144
Cash and cash equivalents 325 160 76
Total current assets 1,671 727 764
 
Total assets 2,042 1,296 1,164
Current liabilities
Trade and other payables < 1 year (187) (289) (206)
Lease liabilities (59)                          – (53)
Non-current liabilities
Trade and other payables > 1 year (29)                          – (29)
Lease liabilities > 1 year (318) (472) (350)
 
Total liabilities (593) (761) (638)
 
Total net assets 1,449 535 526
Capital and reserves attributable to equity holders of the Company
Share capital 1,153 432 439
Share premium 3,353 2,626 2,639
Share based payments reserve 231 186 231
Share option reserve 144                          – 144
Retained earnings (3,432) (2,709) (2,927)
 
Total Equity 1,449 535 526
 

 

 

 

Unaudited Consolidated Cash Flow Statement

for the six months ended 30 September 2025
6 months to 6 months to Year ended
30 September 30 September 31 March
2025 2024 2025
£’000 £’000 £’000
Cash flows from operating activities
Loss before tax (526) (506) (714)
Adjustments for:
Depreciation of fixtures, fittings and equipment                          –   12 54
Gain on sale of investments                          –                        – (400)
Gain on disposal of assets                          –                        – (125)
Impairment of investments                          –                        – 450
Impairment of receivables                          –                        – 84
Depreciation of right-of-use assets                          –   44                 –
(Profit) on disposal of fixtures, fittings and equipment                          –   (7)                 –
Finance expense – interest on lease liabilities 3 10 17
Finance income – interest on financial assets (4) (1) (7)
Tax Received 21 36 36
Warrants remuneration                          –                        – 6
Shares issued in lieu of services 85                      – 49
Share based remuneration                          –                        – 39
(421) (412) (511)
(Increase)/decrease in trade and other receivables (658) (453) (125)
Increase/(decrease) in trade and other payables (19) 4 21
(Increase)/decrease in inventories                          –   22 24
Cash used in operations (1,098) (839) (591)
Investing activities
(Purchase)/disposal of tangible fixed assets                          –   12 15
Net cash used in investing activities                          –   12 15
Financing activities
Repayment of lease liabilities (29) (41) (73)
Repayment of financial assets 33                      – 13
Rent deposits held repaid                          –                        – 1
Rent deposits received                          –                        – 29
Proceeds from issue of shares, net of issue costs 1,343 865 519
 
Net cash generated from financing activities 1,347 824 489
Net increase in cash and cash equivalents 249 (3) (87)
Cash and cash equivalents at beginning of period 76 163 163
Exchange rate differences on cash and cash equivalents  
Cash and cash equivalents at end of period 325 160 76
 

 

 

Unaudited Consolidated Statement of Changes in Equity

for the six months ended 30 September 2025
Share capital Share Premium Share based Payments Reserve Share Options Reserve Retained earnings Total equity
£’000 £’000 £’000 £’000 £’000 £’000
Balance 1 April 2024 144 2,049 186                 – (2,249) 130
Loss for the period            –              –                 –                 – (678) (678)
Total comprehensive income 144 2,049 186 0 (2,927) (548)
Transactions with owners
Issue of shares 295 590                 –                 –              – 885
Issue of share options            –              –                 – 144              – 144
Issue of warrants            –              – 6                 –              – 6
Shares based remuneration            –              – 39                 –              – 39
At 31 March 2025 439 2,639 231 144 (2,927) 526
Share capital Share Premium Share based Payments Reserve Share based Payments Reserve Retained earnings Total equity
£’000 £’000 £’000 £’000 £’000 £’000
Balance at 1 April 2025 439 2,639 231 144 (2,927) 526
Loss for the period            –              –                 –                 – (505) (505)
Total comprehensive income 439 2,639 231 144 (3,432) 21
Transactions with owners
Issue of shares 714 714                 –                 –              – 1,428
Issue of share options            –              –                 –                 –              –              –
Issue of warrants            –              –                 –                 –              –              –
Shares based remuneration            –              –                 –                 –              –              –
At 30 September 2025 1,153 3,353 231 144 (3,432) 1,449

 The following describes the nature and purpose of each reserve within equity:

Reserve Description and purpose
Share capital Amount subscribed for share capital at the nominal value of £0.01 per ordinary share
Share premium Amount subscribed for share capital in excess of nominal value, net of share issue costs
Shares to be issued Amounts received in respect of shares to be issued
Equity reserve Amounts recognised for share-based payment transactions including share options granted to employees and other parties
Retained earnings Cumulative net gains and losses recognised in the consolidated statement of comprehensive income

Notes to the Interim Results

for the six months ended 30 September 2025

  1. Basis of preparation

This announcement has been prepared in accordance with International Financial Reporting Standards, International Accounting Standards and Interpretations (collectively IFRS) issued by the International Accounting Standards Board (IASB) as adopted by the European Union (“adopted IFRS”), and with the Companies Act 2006 applicable to companies reporting under IFRS.

Going concern

The financial statements have been prepared on a going concern basis. In assessing whether the going concern assumption is appropriate, the Directors take into account all available information for the foreseeable future, in particular for the twelve months from the date of approval of the financial statements. This information includes management prepared cash flows forecasts, available sources of funding and consideration of how the global economic downturn may impact product launches and sales.

The Directors have a reasonable expectation that the Company has adequate resources to continue in operational existence for the foreseeable future. Thus, they continue to adopt the going concern basis of accounting in preparing the financial statements.

  1. Profit/(loss) per share

Basic earnings per share is calculated by dividing the profit attributable to equity holders of the Company by the weighted average number of ordinary shares in issue during the year, excluding ordinary shares purchased by the Company and held as treasury shares.

The number of ordinary shares of 1 pence each used in the calculation of earnings per share:

  6 months to

30 September 2025

 

6 months to

30 September 2024

Year ended

31 March 2025

Weighted average number of ordinary shares in issue 91,125,643 26,212,563 34,927,599
 
  1. Forward-looking statements

These forward-looking statements are not historical facts but rather are based on the Company’s current expectations, estimates, and projections about its industry; its beliefs; and assumptions. Words such as ‘anticipates,’ ‘expects,’ ‘intends,’ ‘plans,’ ‘believes,’ ‘seeks,’ ‘estimates,’ and similar expressions are intended to identify forward-looking statements. These statements are not a guarantee of future performance and are subject to known and unknown risks, uncertainties, and other factors, some of which are beyond the Company’s control, are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements. The Company cautions security holders and prospective security holders not to place undue reliance on these forward-looking statements, which reflect the view of the Company only as of the date of this announcement. The forward-looking statements made in this announcement relate only to events as of the date on which the statements are made. The Company will not undertake any obligation to release publicly any revisions or updates to these forward-looking statements to reflect events, circumstances, or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

  1. Other information

The financial information in this report does not constitute statutory accounts within the meaning of section 434 of the Companies Act 2006.

The interim results for the six months ended 30 September 2025 are unaudited. The interim financial statements have been prepared using accounting policies consistent with International Financial Reporting Standards (IFRS) and International Financial Reporting Interpretations Committee (IFRIC) interpretations as endorsed by the European Union. The same accounting policies, presentation and methods of computation have been followed in the preparation of these results as were applied in the Company’s audited financial statements dated 31 March 2025.

Mendell Helium #MDH – Updated flow rate on Rost 1-26 well

Mendell Helium is pleased to announce an updated flow rate for M3 Helium Corporation’s (“M3 Helium”) Rost 1-26 well (“Rost”) in Fort Dodge, Kansas. The Company also provides an update on the ongoing development of Rost and the wider Fort Dodge region.

Highlights

  • Flow rate at Rost has been measured at 250 Mcf per day –a 132% increase over the last measured rate in November 2025, equating to a potential value of approximately $3,800 of helium per day or approximately $1.4 million per year
  • Rost is now flowing gas even when the pump is turned off
  • M3 Helium will switch the well onto a beam pump which is more economical to run
  • Discussions with partners to develop further wells in Fort Dodge are moving forward

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells.  There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. As announced today, the Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 28 February 2026.

Rost

As previously announced, since de-watering operations began in September 2025, Rost has continued to increase production volumes. The most recent measured flow rate of 250 Mcf per day represents a 132% increase over the last measured rate in November of 108 Mcf per day.

With a 5.1% helium composition, current gas production from the well is equivalent to approximately $3,800 of helium per day.  If that rate was consistent for a year then Rost would have an annualised helium production revenue of approximately $1.4 million per year. Investors should note that this is an illustration only.  The well’s flow rate has doubled in each of the past two months and there is some  evidence on site (as explained below) of continued strength in the reservoir but, once the well does peak, it is prudent to expect some decline in flow rates.

During the flow test, pressure was noted on the tubing (the inner part of the well where the water normally is pumped up and through) which was then opened to the water knock-out and separator.  With the pump switched off, gas then continuously flowed from the tubing, feeding the Bauer compressor (which itself loads the tube trailer), until being shut off. Casing pressure reached 167 psi over an eight hour period without any pumping. Free flowing gas has not occurred before during M3 Helium’s operations and it represents a very positive sign as to how Rost may be  developed. Firstly, it supports M3 Helium’s theory that the well is gaining strength as water is removed from the formation but, secondly, it provides a strong indicator of the pressure of the reservoir – which itself supports plans for further development in the area.

Free flowing gas does, however, require a different method for well management.  To date, M3 Helium has operated Rost with a high-volume electric submersible pump (“ESP”) designed to remove large volumes of water.  With fluid volumes from Rost now declining and, more particularly, quite gassy, an ESP is no longer suitable.  These pumps are designed to support a consistent flow of water and, without the cooling that a solid water stream will provide, may overheat (an issue which M3 Helium is already facing).  Foamy water cannot provide the same coolant properties.

Consequently, M3 Helium is intending  to pull the ESP from the well and replace it with a more conventional, lower volume beam pump which has several advantages including being less energy consumptive and, generally, having less costly components should future maintenance be required.  There is already a beam pump on site at Rost (from previous operations) and so a contractor has been engaged to switch the pumps next week.  There will be a short pause in the well’s production whilst this work is done but the end result will be a more efficient, and lower cost, operation.  It should be noted that M3 Helium always expected to swap the ESP for a beam pump at Rost but the timing for this action was not predicted to be as soon as it has occurred

Once removed from Rost, the ESP will be reconditioned and can be re-used on the next well that M3 Helium undertakes in Fort Dodge. With the ESP being the most expensive capital item for a new production well, this will be a substantial cost saving on the next development. 

Developing Fort Dodge

On 8 December 2025, Mendell Helium announced that it was in advanced discussions with a group of US based investors who have expressed interest in supporting M3 Helium in drilling a new production well in the Fort Dodge region and furthermore that it had reached an agreement in principle with a local well owner to dewater and recomplete a currently disused well. These discussions are progressing quickly with further meetings scheduled for this week.

Alongside that, M3 Helium continues to work with specialist engineers to enhance its Fort Dodge operations. The performance of Rost points to a more advanced helium purification set up.  Put simply, with the quantity of total gas being produced, the site – and future sites – will benefit from a system that separates the helium, and other valuable components, more effectively. The objectives are to reduce the overall volumes that are handled on site as well as ensuring that a higher purity helium mix is shipped, thereby eliminating the logistics of transporting waste. Several solutions have been identified, all of which will supplement the facilities already in place.

Work being done now to streamline Rost will pave the way for optimal future developments at Fort Dodge.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “I’ve spoken positively about Rost for some time now but today’s news takes the project to an entirely new level. In less than three months since operations began, Rost has already reached a flow rate corresponding to revenue potential of over $100,000 of helium per month and close to $1.4 million of helium per year.

“Naturally we approach each project with optimism but these results surpass all of our expectations.  The increasing scale of the project does require a reappraisal of the on-site operations.  Switching to a beam pump will reduce operating costs and Rost’s ESP can then be re-fitted into a new well.  The rapid growth in Rost’s flow rate has also accelerated M3 Helium’s strategy for upgrading the surface operations.  With a line of sight to developing new wells in Fort Dodge with prospective financial and industry partners, these works are providing the blue print for larger scale operations.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here:https://mendellhelium.com/link/PKa6Ve

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell, Colin Rowbury, Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

 

Overview of M3 Helium

Mendell Helium announced on 27 June 2024 that it has entered into an option agreement to acquire the entire issued share capital of M3 Helium through the issue of 57,611,552 new ordinary shares in Mendell Helium to M3 Helium’s shareholders.  The exercise of the option will constitute a reverse takeover pursuant to AQSE Rule 3.6 of the Access Rule Book and is subject to, inter alia, publication of an admission document.

M3 Helium’s flagship well, Rost 1-26, is in Fort Dodge, just to the east of Dodge City, Kansas.  It has been tested as containing 5.1% helium composition and a drill stem test yielded a maximum flow rate of approximately 2,900 Mcf per day.  M3 Helium owns a mobile Pressure Swing Adsorption production plant which has been installed on site and will be used to purify the produced helium.  The plant is capable of processing up to 800 Mcf per day of raw gas and purifying it up to 99.999% helium although management believes on-site purification to around 75% will be more practical.

Water removed from Rost 1-26 is delivered to Brobee, a nearby disposal well that has been permitted at 5,000 barrels of water per day at 1,200 psi.

Production at Rost 1-26 commenced in early November 2025 and the most recently recorded flow rate in December 2026 was 249.6 Mcf per day equating to approximately $1.4 million of helium per year.

M3 Helium also has interests in five producing wells (Peyton, Smith, Nilson, Bearman and Demmit) within the Hugoton gas field in South-Western Kansas, one of the largest natural gas fields in North America.  Significantly these wells are in the proximity of a gathering network and the Jayhawk gas processing plant meaning that producing wells are all tied into the infrastructure.

M3 Helium is also developing a Bitcoin mining operation in Nebraska where it has taken a lease of land prospective for biogenic methane and has drilled a pilot well (Jasper).  It is onboarded for custody with Bitgo Inc. and its Bitcoin treasury management policy is available at https://mendellhelium.com/bitcoin-treasury.

Forward Looking Statements

These forward-looking statements are not historical facts but rather are based on the Company’s current expectations, estimates, and projections about its industry; its beliefs; and assumptions. Words such as ‘anticipates,’ ‘expects,’ ‘intends,’ ‘plans,’ ‘believes,’ ‘seeks,’ ‘estimates,’ and similar expressions are intended to identify forward-looking statements. These statements are not a guarantee of future performance and are subject to known and unknown risks, uncertainties, and other factors, some of which are beyond the Company’s control, are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements. The Company cautions security holders and prospective security holders not to place undue reliance on these forward-looking statements, which reflect the view of the Company only as of the date of this announcement. The forward-looking statements made in this announcement relate only to events as of the date on which the statements are made. The Company will not undertake any obligation to release publicly any revisions or updates to these forward-looking statements to reflect events, circumstances, or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

Important Notices

Mendell Helium plc (the “Company”) intends in the future to invest surplus cash and hold treasury reserves in bitcoin. Bitcoin is a type of cryptocurrency or crypto asset. Whilst the Board of Directors of the Company considers holding bitcoin to be in the best interests of the Company, the Board is aware that the financial regulator in the UK (the “Financial Conduct Authority” or “FCA”) considers investment in bitcoin to be high risk. However, the Board of Directors of the Company consider bitcoin to be an appropriate store of value and growth for the Company’s reserves and, accordingly, the Company may in the future be materially exposed to bitcoin. Such an approach is innovative, and the Board of Directors of the Company wish to be clear and transparent with prospective and actual investors in the Company on the Company’s position in this regard. An investment in the Company is not an investment in bitcoin, either directly or by proxy.

The Company is neither authorised nor regulated by the FCA and cryptocurrencies (such as bitcoin) are unregulated in the UK. As with most other investments, the value of bitcoin can go down as well as up, and therefore the value of bitcoin holdings can fluctuate. The Company may not be able to realise any future bitcoin exposure for the same as it paid in the first place or even for the value the Company ascribes to bitcoin positions due to these market movements. As bitcoin is unregulated, the Company is not protected by the UK’s Financial Ombudsman Service or the Financial Services Compensation Scheme.  Prospective investors in the Company are encouraged to do their own research before investing.

Mendell Helium #MDH – Further re Broker Option Convertible Loan Note and Appointment of Joint Broker

Mendell Helium announces that, further to its announcement of 17 November 2025, the Company is pleased to announce that it has raised, through the Subscription and an unsecured convertible loan note facility (“CLN”) with certain high net worth investors, aggregate gross proceeds of approximately £513,000.

Highlights

Fundraising

  • A total of 7,102,320 new Ordinary Shares have been issued through the Subscription (all as previously announced) to raise approximately £213,000
  • A further £300,000 of funding is available to the Company through the CLN, with the timing most likely linked to the next phase of expansion of M3 Helium Corporation’s (“M3 Helium”) Fort Dodge, Kansas projects
  • The CLN, if converted before the Company is admitted to trading on AIM, entitles the holders to new Ordinary Shares at a price of 3 pence per share (further details are below)
  • The CLN, if converted after the Company is admitted to trading on AIM, entitles the holders to new Ordinary Shares at a price of 4.5 pence per share (further details are below)

Operations

  • Advanced discusssions with a group of US based investors who have expressed interest in supporting M3 Helium in drilling a new production well in the Fort Dodge region
  • Agreement in principle with a local well owner to dewater and recomplete a currently disused well

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells.  There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. As announced on 1 December 2025, the Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 28 February 2026.

Subscription

Investments in the Subscription were announced on 17 and 25 November 2025 and 4 December 2025.  No further new Ordinary Shares have been issued pursuant to this announcement.

For every two new Ordinary Shares issued pursuant to the Subscription, investors have received one warrant allowing the holder to subscribe for an additional new Ordinary Share in the Company at an exercise price of 4.5 pence per Ordinary Share, exercisable within two years of Admission (as defined further below) and one warrant allowing the holder to subscribe for an additional new Ordinary Share in the Company at an exercise price of 6 pence per Ordinary Share, each exercisable within two years of Admission. In aggregate 7,102,320 warrants have been issued pursuant to the Subscription. The warrants will not be tradeable, nor transferable or CREST-enabled.

Investments in the Subscription were announced on 17 and 25 November 2025 and 4 December 2025.  No further new Ordinary Shares have been issued pursuant to this announcement.

No commissions are due under the Subscription as each subscriber made a direct investment in the Company.

Convertible Loan Note 

Further to the announcement on 4 December 2025, certain high net worth investors have agreed to provide £300,000 under the unsecured CLN in substitution of the Broker Option.  The advantage of this structure is that it secures funding for the Company at the likely time of the next phase of expansion of its Fort Dodge, Kansas projects but, unless the CLN is converted prior to the move to AIM (as described below) is a less dilutive structure for Mendell Helium’s shareholders.

Key terms of the CLN are detailed below:

  • The CLN can be converted by the holders into new Ordinary shares at 3p up to the date of Mendell Helium’s proposed admission to trading on AIM
  • The CLN can be converted by the holders into new Ordinary shares at 4.5p after the date of Mendell Helium’s proposed admission to trading on AIM
  • If the CLN is converted then £300,000 (or pro rata) is payable to the Company at the time of conversion
  • If the CLN is not converted, the Company agrees not to draw down on the CLN until the later of (i) admission to trading on AIM or (ii) 14 February 2026
  • Following draw down, CLN carries a coupon of 10% payable half yearly or can at any time be converted into new Ordinary Shares at 4.5 pence per share
  • A 5% fee will be payable in new Ordinary shares on draw down of the CLN
  • The CLN will expire if it is neither converted nor drawn down by 30 April 2026
  • The CLN is repayable in full (principal and interest) by the later of (i) second anniversary of admission to AIM or (ii) 14 February 2028
  • The CLN will expire if it is neither converted nor drawn down by 30 April 2026

In consideration for providing the CLN, investors in the CLN will be issued, in aggregate, 10,000,000 warrants on the same terms as the Subscription as described above.

AlbR Capital Limited (“AlbR”) acted as the Company’s broker in connection with the CLN. The Company is pleased to announce that AlbR has been appointed as a Joint Broker to the Company with immediate effect.

Use of proceeds

On 17 November 2025, Mendell Helium announced that the success of M3 Helium’s Rost 1-26 well (“Rost”)  had generated interest from finance partners, nearby well owners and specialist engineers, all of whom have expressed interest in principle in working with M3 Helium to expand its operations in Fort Dodge, Kansas.  The Company is now pleased to provide the following update:

  • Mendell Helium is in advanced discussions with a group of US based investors who have expressed interest in supporting M3 Helium in drilling a new production well in the Fort Dodge region.
  • Mendell Helium has reached an agreement in principle with a local well owner to dewater and recomplete a currently disused well. This partnership would provide a faster route to expansion than drilling on a new site.
  • The Company has also received recommendations from several firms of specialist engineers to enhance M3 Helium’s Fort Dodge operations by, amongst other things, purifying produced helium to a higher concentration and capturing produced NGLs for sale.

As previously announced, whilst there can be no guarantee that any of the above opportunities will be realised, given Rost has attracted so much attention in its early weeks of operation is an indication of both Rost’s and the region’s potential.

Mendell Helium intends to apply the proceeds of the Subscription and, in time, the CLN through issuing additional loans to M3 Helium to enable M3 Helium to further invest in its operations at Rost and to continue to investigate the opportunity for M3 Helium to expand its interests in the Fort Dodge area through additional producing wells.

At the date of this announcement Mendell has provided approximately US$1.3 million in loans to M3 Helium including accrued interest.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “Our fundraising which began as an offer of new investment from one shareholder has closed with in excess of £0.5 million of new funds secured for Mendell Helium. The success of M3 Helium’s operations in Kansas and the prospects that its has created in the Fort Dodge region have attracted support from both existing shareholders and new investors – and significantly from industry partners in the US.  The convertible loan note structure has been employed as a creative mechanism that may delay access to funds until such time as M3 Helium requires them – namely for new wells in Fort Dodge – and, subject to the timing of conversion, may be less dilutive for existing holders than taking all the funds in now through the issue of new Ordinary Shares.

“M3 Helium’s Rost well is a complex dewatering and helium purification project.  In proving its success, as evidenced by commercial production of helium being underway, it is no surprise that there is now rising interest in working with M3 Helium on related projects.  Proceeds of the fundraising puts M3 Helium in a strong position to develop and, in time, conclude these discussions and, with that, secure the next phase of development at Fort Dodge.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here:https://mendellhelium.com/s/a6a55a

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

AlbR Capital Limited

Gavin Burnell, Colin Rowbury, Jon Belliss

 

Tel: +44 (0) 207 4690930

 

Brand Communications (Public & Investor Relations)

Alan Green

 

Tel: +44 (0) 7976 431608

 

 

 

 

Mendell Helium #MDH – Update on development of Fort Dodge region, Kansas Option Extension

Mendell Helium is pleased to announce an update on its proposed strategy for the development of further production wells proximate to M3 Helium Corporation’s (“M3 Helium”) Rost 1-26 well (“Rost”) in Fort Dodge, Kansas.  The Company also provides an update on the timing of its proposed move to AIM.

Highlights

  • Preliminary interest from two parties to finance new wells in Fort Dodge region
  • Several suitable further drilling locations have been identified in the same formation as Rost
  • Ongoing discussions with a third party operator to collaborate on recompleting an existing well in the region
  • On-site consultations with specialist engineers at Rost with a view to maximizing production potential at future wells

As announced on 27 June 2024, the Company has an option (the “Option”) to acquire M3 Helium, a producer of helium which is based in Kansas and holds an interest in six producing wells.  There is no certainty that the Company’s option to acquire M3 Helium will be exercised, nor that the enlarged group will successfully complete a re-admission. As announced today, the Company and M3 Helium have agreed to extend the date on which the Option should be exercised to 28 February 2026. 

Developing Fort Dodge

The thesis underpinning the development of Rost was that a high volume de-watering programme would in time enable gas production. With a 5.1% helium concentration, Rost has a clear attraction.  The formation accessed by Rost extends through a narrow channel in the Fort Dodge area indicating  the possibility forfurther wells.  Gas composition may vary but the same de-watering technique will be required.  M3 Helium is aware of other wells nearby that were, at the time of their completion, considered unsuccessful due to water content but it believes that mirroring the work done at Rost could overcome these challenges and, in doing so, could deliver production from elsewhere in the Fort Dodge region.

A key feature of the Fort Dodge region is that it can access several suitable water disposal formations.  This is an essential part of the strategy.  In considering new well locations, M3 Helium models the possibility of several thousand barrels of water being produced each day.  Without the abiity to return that water to a different formation, the operation would be uneconomic. Trucking water would be prohibitively expensive as well as, in the directors view, probably logistically impossible given the required volumes.

In particular, it is M3 Helium’s view that future wells should be drilled to accommodate larger casing to allow for greater water – and therefore potentially greater gas – production.  Following on from that, future disposal wells are likely to access deeper formations which are expected to be able to deal with these predicted water volumes (Rost’s disposal well, the Brobee, is presently using one of the shallower zones).

As previously announced, M3 Helium has already leased additional land that it considers will be suitable for new wells and it is continuing to take steps to expand its land holdings in the Fort Dodge region.

Identified opportunities for new wells

Following on from the ongoing success at Rost, M3 Helium has been contacted by, and has opened preliminary discussions with, two separate finance providers who have expressed interest in working with M3 Helium to develop more wells in the Fort Dodge region.  Both parties are experienced in oil & gas and, in both cases, any arrangement would see the funders taking an interest in the new wells.  There would be no dilution to M3 Helium shareholders nor Mendell Helium shareholders. The subscription that was announced on 17 November 2025 is expected to provide sufficient funds for M3 Helium to advance these discussions.

The Fort Dodge region contains numerous existing oil & gas wells.  Several of these existing wells quickly encountered water that ultimately constrained production but initially evidenced strong flow rates.  M3 Helium believes that the Rost de-watering technique could be employed to recomplete other wells in the region.  It is currently in early stage discussions with a third party operator to test this theory by recompleting a shut in well owned by that party. Should those discussions conclude and should recompletion of that well succeed, then this could open up a new business opportunity, namely bringing existing wells in operation rather than drilling new wells.  As well as being a faster route to expansion, the directors believe that this strategy arguably has less risk in that existing wells have evidenced prior flow rates.

There can be no certainty that final binding terms will be agreed with either the funding partners referred to above or the third party operator, nor as to the timing, value or conditions of such terms. Further updates will be provided in due course.

In preparation for the next stage of its expansion, M3 Helium has already met with specialist engineers. Its objectives are to maximise production from each well, noting corresponding water disposal requirements, and design facilities to increase the purification on site of any produced helium to maximise the value of each delivery.  Rost provides a blueprint for surface facilities but M3 Helium, working with specialists, believes it has identified opportunities to scale up.

Significantly, discussions with M3 Helium’s offtaker in respect of this proposed expansion are positive.  In addition to confirming that it will accept higher levels of production, the offtaker has also indicated that it can work with M3 Helium to improve surface facilities, specifically by providing mobile pressure swing adsorption units at well sites to assist in purification of produced helium.

Update on proposed move to AIM and completion of acquisition of M3 Helium

A key remaining workstream in preparation for the Company’s move to AIM is to audit M3 Helium’s accounts for the period to 30 June 2025 (“2025 Audit”). All other workstreams are either materially advanced or complete. The statutory accounts for the 2025 Audit have been prepared and, noting that the audit for the prior year has been completed, Mendell Helium is targeting for the 2025 Audit to be finalised during December 2025. This is likely to put the timing of the move to AIM in early 2026.  Mendell Helium will make further announcements in due course.

As previously announced, the Company and M3 Helium have agreed that the optimum date on which the Option should be exercised is the date of admission to AIM on the basis that this will be most efficient in terms of production of the required regulatory documentation. With this in mind, the Company and M3 Helium have agreed to extend the Option to 28 February 2026.

The date for repayment of the loan made by Mendell Helium to M3 Helium has been similarly extended to 28 February 2026. At the date of this announcement Mendell Helium has provided approximately US$1.45 million in loans to M3 Helium including accrued interest.

There are no other changes to the Option which will be exercised through the issue of 57,611,552 new ordinary shares in Mendell Helium to M3 Helium’s shareholders.

Nick Tulloch, Chief Executive Officer of Mendell Helium and Chairman of M3 Helium, said: “I spent a week in Kansas in the latter part of November during which I held several productive meetings with potential partners for M3 Helium. With its innovative  de-watering technique, the process at Rost supplements  conventional wisdom in gas exploration and production so it is no surprise that the success of the well has generated interest from third parties. 

 “The formation that Rost produces from is a narrow channel. M3 Helium has now extensively mapped suitable further drilling locations and so the opportunity to work with local funding partners and operators has come at an ideal time.  Perhaps more significantly, the confidence being shown in M3 Helium from local industry specialists is a powerful validation of what it has achieved to date. As I have said before, the opportunity to develop further prospects in Fort Dodge without relying solely on investment from our shareholders is looking increasingly possible. 

“Our move to AIM remains a core foundation of our strategy. As we have focused on advancing M3 Helium’s operations, the administrative process has moved slightly slower than first planned but the timing may nevertheless work in our favour. It has always been our strategy to move to AIM once Rost was in production and, with that milestone achieved, the Board believes the Company is well positioned to enhance its appeal to investors by progessing plans to drill additional production wells at Fort Dodge.”

This announcement contains inside information for the purposes of the UK Market Abuse Regulation and the Directors of the Company are responsible for the release of this announcement.

ENDS

Engage with the Mendell Helium management team directly by asking questions, watching video
summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor
website here:https://mendellhelium.com/s/a6a55a

Enquiries:

Investor questions on this announcement

We encourage all investors to share questions

on this announcement via our investor website

 

https://mendellhelium.com/s/a6a55a
Mendell Helium plc

Nick Tulloch, CEO

 

Via our website

investors@mendellhelium.com

Cairn Financial Advisers LLP (AQSE Corporate Adviser)

Ludovico Lazzaretti / Liam Murray

 

Tel:  +44 (0) 20 7213 0880
SI Capital Limited (Broker)

Nick Emerson

Tel:  +44 (0) 1483 413500
 

Stanford Capital Partners Ltd (Broker)

Patrick Claridge/Bob Pountney

 

 

Tel:  +44 (0) 203 3650 3650/51

 

 

Fortified Securities

Guy Wheatley

 

Tel: +44 (0) 203 4117773

 

Brand Communications (Public & Investor Relations)

Alan Green

Tel: +44 (0) 7976 431608

 

 

 

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