The reservoir water and rights acquired under reservoir permits and adjudications shall not attach to any particular lands except by deed, or other sufficient instrument conveying such water or water rights, executed by the owner or owners of such reservoir, and such water and water rights, except when attached to particular lands as aforesaid, may be sold, leased, transferred and used in such manner and upon such lands as the owner of such rights or partial rights may desire, provided, that such water must be used for beneficial purposes.
W.S. 41-3-323