Murchison United - Drilling returns significant uranium intercepts in West Africa

Highlights

· Initial assay results received from May 2007 RC drilling program confirm uranium mineralisation at the Firawa Prospect, Guinea, West Africa.

· Greater than 50% of assay results from Firawa have been received. Further assay results are pending.

· Drilling scheduled to commence at Bir En Nar Prospect, Mauritania in the current Quarter.

Drilling Results

Murchison United NL (ASX: MUR, AIM: MUU) is pleased to announce the Company has received in excess of 50% of assay results from its initial drilling program conducted in Guinea, West Africa. The program comprising 29 RC drill holes for a total of 1,809m, was conducted by Murchison United during May 2007 at the Firawa Prospect, one of three large exploration concessions held by Murchison in Guinea. The program was designed to target a highly prospective 2km section of a previously identified uranium anomaly which extends for greater than 5km within the Firawa exploration licences.

The drilling was performed in deep laterite weathered soil profile. The samples consisted mostly of clay, in many sections wet. These were sent to the ALS Chemex laboratory in Bamako, Mali, for preparation and then forwarded for analysis to the ALS Chemex laboratory in Vancouver, Canada. The samples were high temperature dried before splitting and crushing. The uranium is believed to occur in the clay. Additional samples have been collected from sections indicating the highest radiation, in order to further examine the clay minerals and assess optimal methods of uranium extraction. The uranium mineralisation follows an East - West tectonic structure, interpreted as a fault zone along a distance of five kilometres. The recent R/C drilling has been conducted over the two kilometre section regarded as most prospective. R/C sampling has revealed chips of gneiss, pegmatite, quartz veins and mafic rocks, probably dikes related to the faulting. At this stage the genesis and delineation of the uranium mineralisation is unclear. It is speculated that uranium dissolved in water along the fault has been captured in supergene clay minerals but forthcoming mineralogical studies will provide further clarification.

Drilling Program

This initial drilling program consisted of 29 holes for a total of 1,809m of RC drilling. The holes were drilled to an average length of 62m, with a maximum of 94m for FRW8. Commenting on the results, Murchison United's Managing Director, Mr Mark Reilly, said the success of the Company's first drilling program in West Africa confirmed the prospectivity of Murchison's uranium exploration tenements and provided confidence for further successes from upcoming drilling programs.

"Following the promising results attained so far at Firawa and the recent completion of a A$7.4m placement, we are looking forward to receiving the remaining assay results from Firawa and undertaking further drilling programs at the Company's Bohoduo Prospect, Guinea and the Bir En Nar Prospect in Mauritania," Mr Reilly said. Murchison United has secured an extensive portfolio of uranium exploration projects comprising some 13,600km2 of highly prospective tenements in Mauritania and Guinea, West Africa. Its objective is to delineate significant new uranium deposits within these under-explored terrains.

Murchison United NL is an Australian-based no liability company whose principal activity is minerals exploration. The company currently has uranium exploration projects in Mauritania and Guinea in West Africa and copper interests in the Millennium copper leases in Cloncurry, Queensland and the Maroochydore copper project in Western Australia. Shares in the company are listed on both the Australian Stock Exchange (ASX: MUR) and the Alternative Investment Market (AIM: MUU) of the London Stock Exchange

For further information regarding this announcement, please call Mark Reilly.

..........................

Mark Reilly

Managing Director

The information in this report that relates to exploration results is based on information compiled by Mr. Bosse Gustafsson, who is a member of the European Federation of Geologists a Recognised Overseas Professional Organisation ("ROPO"). Mr Bosse Gustafsson is a full time Executive Director of Murchison United NL and is responsible for exploration activities in Mauritania and Guinea. Mr Gustafsson has sufficient experience, which is relevant to the style of mineralisation and the type of deposit under consideration and to the activity, which he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of the ‘Australian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserve'. Mr Gustafsson consents to the inclusion in this report of the matters based on their information in the form and context in which it appears.