Neb. Rev. Stat. § 46-1,135: Rights of grantees of subdivided lands.

Where land within an irrigation district, to which water has been delivered through adequate facilities provided by such irrigation district, is subdivided and transferred in part, the grantee or transferee shall have the right to use laterals and other existing facilities as against his grantor or assignor unless agreed otherwise, which agreement must be expressly stated in the deed of conveyance or transfer.