The department reserves the right to lease any subsurface resource not covered by an existing oil and gas lease: Provided, That such leasing is subject to any existing subsurface lease rights and does not materially interfere with any established lease operations. The department shall require a cooperative work agreement to allow simultaneous or coordinated operations.

The department reserves the right to allow joint or several uses of existing sites, easements, or rights of way under control of the state, upon such terms as the department may determine.