| Engineer | Form: (04)
401138243
01/18/2017 | 1) Operator shall comply with the Notice to Operators Drilling Wells in the Buzzard, Mamm Creek, and Rulison fields, Garfield County and Mesa County – Procedures and Submittal Requirements for Compliance with COGCC Order Nos. 1-107, 139-56, 191-22, and 369-2 (“Bradenhead NTO”), dated July 8, 2010.
2) At least once a year perform a bradenhead test and report results on operator’s annual spreadsheet or on a Form 17, as specified in the Bradenhead NTO.
3) COGCC staff encourages the use of a combustor for vented bradenhead gas when feasible without the use of supplemental fuel for the combustor. An enclosed flare shall be used, unless an open flare is specifically allowed by Colorado Department of Public Health and Environment (CDPHE) Regulation 7.
4) Comply with any CDPHE, Air Pollution Control Division rules or requirements for all atmospheric discharges.
5) Any liquids blown down are to be collected, stored, handled, and treated or disposed as E&P waste per COGCC’s 900 series rules.
6) Annular spaces shall not be tied to sales without COGCC engineering approval on a Sundry Notice, Form 4, describing equipment configuration, proper pressure regulation and check valves. At least one check valve is required for annular spaces that are tied to sales. Maintain equipment for pressure regulation and check valves in good working order. |
| Engineer | Form: (04)
401420988
11/01/2017 | 1) Operator shall comply with the Notice to Operators Drilling Wells in the Buzzard, Mamm Creek, and Rulison fields, Garfield County and Mesa County – Procedures and Submittal Requirements for Compliance with COGCC Order Nos. 1-107, 139-56, 191-22, and 369-2 (“Bradenhead NTO”), dated July 8, 2010.
2) At least once a year perform a bradenhead test and report results on operator’s annual spreadsheet and on a Form 17, as specified in the Bradenhead NTO. Submit an annual update sundry request to vent or flare with the duration of venting or number of times the annulus was vented.
3) COGCC staff encourages the use of a combustor for vented bradenhead gas when feasible without the use of supplemental fuel for the combustor. An enclosed flare shall be used, unless an open flare is specifically allowed by Colorado Department of Public Health and Environment (CDPHE) Regulation 7.
4) Comply with any CDPHE, Air Pollution Control Division rules or requirements for all atmospheric discharges.
5) Any liquids blown down are to be collected, stored, handled, and treated or disposed as E&P waste per COGCC’s 900 series rules.
6) At least one check valve is required for annular spaces that are tied to sales. Maintain equipment for pressure regulation and check valves in good working order. |
| Engineer | Form: (04)
401758778
10/05/2018 | 1) Operator shall comply with the Notice to Operators Drilling Wells in the Buzzard, Mamm Creek, and Rulison fields, Garfield County and Mesa County – Procedures and Submittal Requirements for Compliance with COGCC Order Nos. 1-107, 139-56, 191-22, and 369-2 (“Bradenhead NTO”), dated July 8, 2010.
2) At least once a year shut in bradenhead for 7 days and perform a bradenhead test if pressure builds to 150 psi. Report results on operator’s annual spreadsheet and on a Form 17 if bradenhead test was performed, as specified in the Bradenhead NTO.
3) Comply with any CDPHE, Air Pollution Control Division rules or requirements for all atmospheric discharges.
4) Any liquids blown down are to be collected, stored, handled, and treated or disposed as E&P waste per COGCC’s 900 series rules.
5) At least one check valve is required for annular spaces that are tied to sales. Maintain equipment for pressure regulation and check valves in good working order.
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| Engineer | Form: (04)
404467275
01/15/2026 | 1. Operator will implement measures to control venting, to protect health and safety, and to ensure that vapors and odors from well operations do not constitute a nuisance or hazard to public welfare.
2. Bradenhead gas is not to be vented to the atmosphere; any gas from the Bradenhead will be routed to the specified abatement system. Shut in bradenhead pressure shall not exceed threshold pressure. Operator will implement measures to get an estimate of the gas flow rate and/or volume from the bradenhead.
3. No later than 02/14/2026, conduct a bradenhead test, submit a Form 17, and submit a Form 4 Sundry that summarizes current well condition. The well should be shut in for seven days to monitor and collect data to characterize build up pressures prior to conducting the bradenhead test. The sundry should include details of the future plans, sample analysis interpretation, bradenhead test description, and the flow rate information and pressure data. |