Common use of Plan of Operations Clause in Contracts

Plan of Operations. Prior to the commencement of any exploration, drilling, or mining operations on the Leased Premises, Lessee shall obtain Lessor’s approval of a plan of operations for the Leased Premises. Lessor may modify the proposed plan of operations as is needed to insure that there is no waste of economically recoverable mineral reserves contained on the Leased Premises. In this context “waste” shall mean the inefficient utilization of, or the excessive or improper loss of an otherwise economically recoverable mineral resource. Lessor shall notify Lessee in writing of its approval or modifications of the plan of operations. The plan of operations submitted by Lessee shall be deemed approved by Lessor if Lessor has not otherwise notified Lessee within sixty (60) days of filing.

Plan of Operations. Prior to the commencement of any exploration, drilling, or mining operations on the Leased Premises, Lessee shall obtain Lessor’s approval of a plan of operations for the Leased Premises. Lessor may modify the proposed plan of operations as is needed to insure that there is no waste of economically recoverable mineral reserves contained on the Leased Premises. In this context “waste” shall mean the inefficient utilization of, or the excessive or improper loss of an otherwise economically recoverable mineral resource. Lessor shall notify Lessee in writing of its approval or modifications of the plan of operations. The plan of operations submitted by Lessee shall be deemed approved by Lessor if Lessor has not otherwise notified Lessee within sixty (60) days of filing.. Geothermal Energy Lease 4/1/07 Page No. 10

Plan of Operations. Prior to the commencement of any exploration, drilling, or mining operations on the Leased Premises, Lessee shall obtain Lessor’s approval of a plan of operations for the Leased Premises. Lessor may modify the proposed plan of operations as is needed to insure that there is no waste of economically recoverable mineral reserves contained on the Leased Premises. In this context “waste” shall mean the inefficient utilization of, or the excessive or improper loss of Geothermal Energy Lease 4/1/07 an otherwise economically recoverable mineral resource. Lessor shall notify Lessee in writing of its approval or modifications of the plan of operations. The plan of operations submitted by Lessee shall be deemed approved by Lessor if Lessor has not otherwise notified Lessee within sixty (60) days of filing.

Plan of Operations. Prior to the commencement of any exploration, drilling, or mining operations on the Leased Premises, Lessee shall obtain Lessor’s approval of a plan of operations for the Leased Premises. Lessor may modify the proposed plan of operations as is needed to insure that there is no waste of economically recoverable mineral reserves contained on the Leased Premises. In this context “waste” shall mean the inefficient utilization of, or the excessive or improper loss of an otherwise economically recoverable mineral resource. Lessor shall notify Lessee in writing of its approval or modifications of the plan of operations. The plan of operations submitted by Lessee shall be deemed approved by Lessor if Lessor has not otherwise notified Lessee within sixty (60) days of filing.. Generic Mineral Lease Form 6/22/05 Page No. 10

Plan of Operations. Prior to the commencement of any exploration, drilling, or mining operations on the Leased Premises, Lessee shall obtain Lessor’s approval of a plan of operations for the Leased Premises. Lessor may modify the proposed plan of operations as is needed to insure that there is no waste of economically recoverable mineral reserves contained on the Leased Premises. In this context “waste” shall mean the inefficient utilization of, or the excessive or improper loss of an otherwise economically recoverable mineral resource. Lessor shall notify Lessee in writing of its approval or modifications of the plan of operations. The plan of operations submitted by Metalliferous Mineral Lease Form 6/22/05 Page No. 10 Lessee shall be deemed approved by Lessor if Lessor has not otherwise notified Lessee within sixty (60) days of filing.