Del. Code tit. 7 § 4510
The Department of Natural Resources and Environmental Control together with the Governor of this State, may execute and deliver, in proper form, a lease of any part of the public lands of this State, which public lands are under the supervision and control of the Department of Natural Resources and Environmental Control by virtue of this chapter. The demise and lease of such lands may be upon such conditions and for such rentals as the Department of Natural Resources and Environmental Control deems advisable for the public good. Whoever leases any of the lands under any restrictions or conditions of the Department of Natural Resources and Environmental Control and fails to comply with the restrictions or conditions mentioned in the lease from the Department forfeits the leasehold interest granted by the lease.
7 Del. C. § 4510