Murchison United NL was an Australian mining company that was primarily focused on the exploration and development of mineral resources in Western Australia. The company was listed on the Australian Securities Exchange (ASX) and had a diverse portfolio of projects, including gold, copper, nickel, and uranium. However, in 2015, the company went into voluntary administration due to financial difficulties and was subsequently delisted from the ASX. Its assets were later acquired by another mining company, which continued the exploration and development of the projects.