29 sep 25   mosman oil & gas ltd - appointment of ceo and board update mosman oil & gas ltd. | msmn | 0.0 0.00 3.9% | mkt cap: 7.35m    rns number : 1944b mosman oil and gas limited 29 september 2025   29 september 2025   mosman oil and gas limited ("mosman" or the "company")     appointment of chief executive officer and board update mosman oil and gas limited (aim: msmn), advancing helium, hydrogen and hydrocarbon projects in the usa, is pleased to announce the appointment of howard mclaughlin as chief executive officer (non-board). in addition, carl dumbrell, currently chairman, will now serve as executive chairman, and andrew scott, currently non-executive director, will take on the role of executive director. appointment of chief executive officer howard mclaughlin has been with mosman since 2017 as manager of us operations, overseeing field activity and project development. he was instrumental in mosman's strategic move into the helium sector in north america, introducing both the sagebrush and coyote wash helium projects in colorado. howard has a strong personal alignment with shareholders through his direct investment in sagebrush, providing clear motivation to see the project successfully developed. he has served as interim ceo since june 2025 and now formally steps into the ceo role. howard brings decades of technical, operational and commercial expertise, having spent 19 years at bhp petroleum, ultimately serving as vice president of global exploration. he is also a former managing director and ceo of an asx-listed public company, with extensive international experience across australia, europe, africa, the middle east, asia and north america. carl dumbrell, executive chairman of mosman, commented: "we are delighted that howard has agreed to become mosman's ceo. his personal investment in sagebrush and his long-standing commitment to mosman since 2017 make him the ideal person to lead the company. over the coming months we will reach important milestones, including the start of 3d seismic over sagebrush in october and the extended well test on sagebrush-1 in q4. together with progress at coyote wash, these steps mark the beginning of an exciting new chapter for mosman. with an independently verified helium resource and a clear pathway to development, the company is well positioned for future value creation and we move forward with confidence." enquiries: mosman oil & gas limited carl dumbrell chairman   nomad and joint broker sp angel corporate finance llp stuart gledhill / richard hail / adam cowl +44 (0) 20 3470 0470 brand communications alan green tel: +44 (0) 7976 431608 joint broker cmc markets uk plc douglas crippen +44 (0) 020 3003 8632   updates on the company's activities are regularly posted on its website: www.mosmanoilandgas.com   notes to editors mosman (aim: msmn) is a helium, hydrogen and hydrocarbon exploration, development, and production company with projects in the us and australia. mosman's strategic objectives remain consistent: to identify opportunities which will provide operating cash flow and have development upside, in conjunction with progressing exploration. the company has several projects in the us, in addition to royalty interests in australia.   this information is provided by rns, the news service of the london stock exchange. rns is approved by the financial conduct authority to act as a primary information provider in the united kingdom. terms and conditions relating to the use and distribution of this information may apply. for further information, please contact rns@lseg.com or visit www.rns.com.  rns may use your ip address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. for further information about how rns and the london stock exchange use the personal data you provide us, please see our privacy policy.   end   boavklbleklfbbl return to news summary

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