- Amendment to Oil and Gas Lease to Amend Land Description in Oil and Gas Lease to Create Separate Oil and Gas Leases US-OG-080
- Amendment to Oil and Gas Lease to Amend Land Description to include Additional Lands US-OG-081
- Amendment to Oil and Gas Lease to Change Depository US-OG-082
- Amendment to Oil and Gas Lease to Correct Land Description US-OG-083
- Amendment to Oil and Gas Lease to Extend Primary Term US-OG-084
- Amendment to Oil and Gas Lease to Extend the Primary Term of the Lease on Part of the Lands Subject to the Lease US-OG-085
- Amendment to Oil and Gas Lease with Terms of the Amendments to Be inserted in Form US-OG-086
- Amendment to Oil and Gas Lease for Paid-Up Extension of Primary Term of Lease US-OG-575
- Amendment to Oil and Gas Lease to Add Shut-In Provision For Oil Wells US-OG-576
- Amendment to Oil and Gas Lease to Amend Pooling Provision US-OG-577
- Amendment to Unit Designation to include Additional Lands and Leases in A Unit US-OG-580
- Amendment to Unit Designation to include Additional Lands and Leases in A Unit US-OG-728