1. OG STIP 1- JOINT ESTATE WITH BIOLOGICAL ISSUES:

Lease contains Colorado Parks & Wildlife (CPW) mapped High Priority Habitat (HPH) and/or occurrences of Federally-listed Endangered, Threatened, or Candidate wildlife or plant species as mapped by Colorado Natural Heritage Program (CNHP). Prior to surface access for operations and in connection with any Location Assessment for oil and gas operations, or the submittal of an Application for Permit to Drill (APD) with the Colorado Oil and Gas Conservation Commission (OGCC), Lessee shall consult with and obtain approval of the Lessor’s District Manager, or his designee, for operations, including without limitation, exploration activities, well siting and access, and facilities locations. In connection therewith, Lessee shall consult with CPW and CNHP representatives regarding appropriate design measures and best management practices (BMPs) to avoid and minimize adverse impacts to biological resources, species, and habitats. Lessor’s conservation mandate may require Lessee’s compliance with site specific measures to address CPW and CNHP concerns relating to the siting of facilities and the implementation of BMPs to avoid, minimize, and mitigate adverse impacts. Site specific requirements may include, but are not limited to: 1) restricted or prohibited surface occupancy, 2) noise limitations or mitigation measures, 3) seasonal operations restrictions, 4) biological resource mapping, 5) ground or surface water testing, 6) air quality testing and 7) adoption of a comprehensive soil management plan. Lessor does not waive any OGCC consultation requirements with the surface owner, and Lessee shall not seek a variance to any required consultation without the advance written approval of the Lessor. Without excluding other penalties or remedies available under this Lease or as provided by law, Lessor shall impose penalties, subject to the applicable Lease notice and cure rights, including Lease cancellation and fines of up to $10,000 per day, for any violation of this special stipulation or the resulting BMPs, in whole or in part, arising directly or indirectly from the use, occupation or control of the Leased Premises by Lessee, Lessee’s contractor or operator under this Lease. If Lessor determines any oil and gas operations pose a risk of immediate damage to public health, safety or welfare Lessor may order the immediate suspension of operations to investigate and remedy the issues.

3. OG STIP 3- SEVERED ESTATE WITH KNOWN BIOLOGICAL ISSUES:

Lease contains Colorado Parks and Wildlife (CPW) mapped High Priority Habitat (HPH) and/or occurrences of Federally-listed Endangered, Threatened, or Candidate wildlife or plant species as mapped by Colorado Natural Heritage Program (CNHP). Lessee must notify Lessor’s District Manager prior to surface access and proposed surface occupancy and in connection with any proposed oil and gas operations, including, without limitation, the submittal of a Location Assessment or an Application for Permit to Drill (APD). Lessee is encouraged to notify CPW and CNHP in connection with the required surface owner notice.

E. MOUNTAIN PLOVER POTENTIAL NEST SITES STIPULATION:

If initial surface disturbance is planned between April 1 - August 15, Lessee must conduct a pre-construction survey for Mountain Plover. Lessee shall consult with the State Land Board regarding their results prior to drilling operations.

F.3. PRONGHORN ANTELOPE WINTER CONCENTRATION AREA STIPULATION:

This lease falls within mapped Pronghorn Antelope Winter Concentration Area. CPW recommends No Surface Occupancy (NSO) between January 1 - April 30 to protect winter habitat and a surface facility density limit of one facility per square mile. Lessee shall consult with the State Land Board prior to APD to determine best management practices to address Pronghorn Antelope concerns.