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Facility Type	Facility ID/ API	Facility Name/ Number	Operator Name/ Number	Status	Field Name/ Number	Location	Location ID	Related Facilities
WELL	05-123-21060	HAFFNER 41-23	NOBLE ENERGY INC 100322	PA 7/3/2018	WATTENBERG 90750	WELD 123 NENE 23 2N64W 6	331651

COGIS - Conditions of Approval Results

Type	Source Document	Conditions of Approval
Engineer	Form: (02) 401151250 11/18/2016	1) Prior to recompletion a bradenhead test shall be performed. If the beginning pressure is greater than 25 psi, or if pressure remains at the conclusion of the test, or if any liquids were present contact COGCC Engineer for sampling requirements. The Form 17 shall be submitted within 10 days of the test. 2) Completed Interval Report, Form 5A, shall be submitted within 30 days after recompletion.
Engineer	Form: (06) 401607054 05/18/2018	Cement squeezed through perforations at 2500’ up to 2000’ is shown on the well bore diagram with the same color and pattern as existing cement. All cement proposed with this plugging should be shown with the same color and pattern and should look different than previously placed cement. Submit corrected well bore diagram with SROA.
Engineer	Form: (06) 401607054 05/18/2018	Operator shall implement measures to control unnecessary and excessive venting, to protect the health and safety of the public, and to ensure that vapors and odors from well plugging operations do not constitute a nuisance or hazard to public welfare.
Engineer	Form: (06) 401607054 05/18/2018	Prior to starting plugging operations a bradenhead test shall be performed. 1) If, before opening the bradenhead valve, the beginning pressure is greater than 25 psi, sampling is required. 2) If pressure remains at the conclusion of the test, or if any liquids were present during the test, sampling is required. 3) If sampling is required contact COGCC engineering for a confirmation of plugging requirements prior to placing any plugs. 4) Sampling shall comply with Operator Guidance - Bradenhead Testing and Reporting Instructions. The Form 17 shall be submitted within 10 days of the test. 5) Submit Form 42 electronically to COGCC 48 hours prior to MIRU 6) Prior to cutting casing or placing the 1232’ plug: verify that all fluid migration (liquid or gas) has been eliminated. If evidence of fluid migration or pressure remains, contact COGCC Engineer for an update to plugging requirements. 7) After isolation has been verified, pump plug and displace. If cement is not circulated to surface, shut-in, WOC 4 hours and tag plug – top of plug must be not deeper than 932’ and provide minimum 10 sx plug at the surface. 8) Leave at least 100’ of cement in the wellbore for each plug. 9) Properly abandon flowlines as per Rule 1105. File electronic Form 42 once abandonment complete. Within 30 days of an operator completing abandonment requirements for an off-location flowline or crude oil transfer line the operator must submit a Flowline Report, Form 44.

COGIS - Best Management Practice Results

BMP Type	Source Document	Best Management Practices
Planning	Form: (02 ) 401151250 12/9/2016	Planning: • The operator shall identify the location of the wellbore with a permanent monument as specified in Rule 319.a.(5). The operator shall also inscribe or imbed the well number and date of plugging upon the permanent monument.
Planning	Form: (02 ) 401151250 12/9/2016	Planning: • Lighting on location is considered temporary and will be used during recompletion activities. Permanent lighting will not be installed and utilized during normal production operations. Temporary lighting will be directed downward, inward, and shielded towards location to avoid glare on public roads and Building Units within 1,000 feet. Lighting will be turned off when practical, i.e., no operations being conducted.
Traffic control	Form: (02 ) 401151250 12/9/2016	Traffic Control: • Recomplete operations – The recomplete rig will access the well from the north a county road 20. Dust suppression will be used on county road and temporary access road, if needed. Dust suppression could include a combination of water, magnesium chloride, or calcium chloride. Limited traffic speed could also be used for dust mitigation. • Permanent operations - Production of the location will use the existing access road, located directly off of Weld County Road 20.
General Housekeeping	Form: (02 ) 401151250 12/9/2016	General Housekeeping: • All surface trash, debris, scrap or discarded material connected with the operations of the property shall be removed from the premises or disposed of in a legal manner.
General Housekeeping	Form: (02 ) 401151250 12/9/2016	General Housekeeping: • Within ninety (90) days after a well is plugged and abandoned, the well site shall be cleared of all non-essential equipment, trash, and debris. For good cause shown, an extension of time may be granted by the Director.
Material Handling and Spill Prevention	Form: (02 ) 401151250 12/9/2016	Material Handling and Spill Prevention: • Any material not in use that might constitute a fire hazard shall be removed a minimum of twenty-five (25) feet from the wellhead, tanks and separator. Any electrical equipment installations inside the bermed area shall comply with API RP 500 classifications and comply with the current national electrical code as adopted by the State of Colorado.
Construction	Form: (02 ) 401151250 12/9/2016	Construction: • Unless otherwise requested by the Surface Owner, well sites constructed within the Designated Setback location will be fenced to restrict access by unauthorized persons.
Construction	Form: (02 ) 401151250 12/9/2016	Construction: • At the time of construction, all leasehold roads shall be constructed to accommodate local emergency vehicle access requirements, and shall be maintained in a reasonable condition. NEI plans on building a temporary access road off of Weld County Road 20 for recompletion activities. • Production of the location will use existing road off of Weld County Road 20.
Noise mitigation	Form: (02 ) 401151250 12/9/2016	Noise Mitigation: • A baseline sound survey will be completed at the residence(s) located 490 feet north east of the Haffner 41-23 well. Engineered sound walls around the recomplete rig will be used, as applicable based on the noise survey findings.