| Engineer | Form: (02)
401795617
11/05/2018 | Operator acknowledges the proximity of the listed wells: Operator agrees to: provide mitigation option 1 or 2 (per the DJ Basin Horizontal Offset Policy) to mitigate the situation, ensure all applicable documentation is submitted based on the selected mitigation option chosen, and submit a Form 42 (“OFFSET MITIGATION COMPLETED”) for the remediated wells, referencing the API number of the proposed horizontal well(s) stating what appropriate mitigation occurred and that it has been completed, prior to the hydraulic stimulation of this well.
Two E Ranches 1 (API NO 123-07510)Two E Ranch 1-4 (API NO 123-11195)
NX 1 (API NO 123-11926)Novacek 1 (API NO 123-12347)
Aloysius 34-1 (API NO 123-13109)Lindsay C 33-2 (API NO 123-13155)
Lindsay 33-3 (API NO 123-13156)Lindsay 33-4 (API NO 123-13157)
Lindsay 33-8 (API NO 123-13161)Lindsay 33-5 (API NO 123-13165)
Lindsay 33-6 (API NO 123-13166)Lindsay 33-7 (API NO 123-13167)
Aloysius 34-7 (API NO 123-13238)Lehfeldt C 27-04 (API NO 123-13616)
Lindsay C 33-14 (API NO 123-14700)Lindsay C 33-15 (API NO 123-14713)
Lindsay C 33-9 (API NO 123-14722)Aloysius 34-8 (API NO 123-14752)
Marie D 4-3 (API NO 123-15122)Lehfeldt C 27-5 (API NO 123-15429)
Lehfeldt C 27-12 (API NO 123-15431)Lehfeldt C 27-13 (API NO 123-15432)
Karch Blue D 4-02 (API NO 123-16137)Aloysius C 34-99HZ (API NO 123-32694)
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| Engineer | Form: (02)
401795617
11/05/2018 | Operator acknowledges the proximity of the following non-operated listed wells: Operator agrees to: provide mitigation option 1 or 2 (per the DJ Basin Horizontal Offset Policy) to mitigate the situation, ensure all applicable documentation is submitted based on the selected mitigation option chosen, and submit a Form 42 (“OFFSET MITIGATION COMPLETED”) for the remediated wells, referencing the API number of the proposed horizontal well(s) stating what appropriate mitigation occurred and that it has been completed, prior to the hydraulic stimulation of this well.
Hanscome C 28-1 (API NO 123-11310)
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| Engineer | Form: (02)
401795617
11/05/2018 | 1) Submit Form 42 electronically to COGCC 48 hours prior to MIRU (Spud Notice), for the first well/activity on the pad and provide 48 hour spud notice for all subsequent wells drilled on the pad.
2) Comply with Rule 317.j and provide cement coverage from the end of production casing to a minimum of 200' above Niobrara. Verify coverage with cement bond log.
3) Oil-based drilling fluid is to be used only after all aquifers are covered.
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| Engineer | Form: (02)
401795617
11/05/2018 | Bradenhead tests shall be performed and reported according to the following schedule and Form 17 submitted within 10 days of each test.:
1) Within 60 days of rig release, prior to stimulation.
2) 6 months after rig release, prior to stimulation.
3) Within 30 days of first production, as reported on Form 5A.
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| Permit | Form: (02)
401795617
12/03/2018 | COGCC COA: Operator will insure the wellbore beyond the unit boundary setback is physically isolated and is not completed. In the Operator Comments on the Form 5A the operator will (1) report the footages from the section lines of the bottom of the completed interval (2) describe how the wellbore beyond the unit boundary setback is physically isolated and (3) certify that none of the wellbore beyond the setback was completed.
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| Engineer | Form: (04)
403304290
01/30/2023 | 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. Prior to starting bradenhead mitigation, if a sample has not been collected within the last twelve months collect bradenhead and production gas samples for laboratory analysis. Sampling will comply with Operator Guidance - Bradenhead Testing and Reporting Instructions, Appendix A: Liquid and Gas Sampling. Copies of all final laboratory analytical results will be provided to the COGCC within three months of collecting the samples.
3. Operator will implement measures to get an initial estimate of the gas flow rate and/or volume from the bradenhead. During the shut-in period record pressure data to adequately characterize the build-up. This mitigation plan may be used for six consecutive months from the date test reported on the Form 17.
4. At the conclusion of the six months, by /18/2023, conduct a new bradenhead test and submit the Form 17 within ten days of the test and submit a Form 4 Sundry that summarizes current well condition. The sundry should include details of the future plans, sample analysis interpretation, and the flow rate information and pressure data.
Shut in bradenhead pressure shall not exceed 50 psig.
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| Engineer | Form: (04)
403375892
04/26/2023 | If any bradenhead pressure greater than 200 psi is observed or if there is continuous flow, Operator must contact COGCC engineering for approval prior to stimulation. |
| Engineer | Form: (04)
403375892
04/26/2023 | 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. Prior to starting bradenhead abatement, if a sample has not been collected within the last twelve months collect bradenhead and production gas samples for laboratory analysis. Sampling will comply with Operator Guidance - Bradenhead Testing and Reporting Instructions, Appendix A: Liquid and Gas Sampling. Copies of all final laboratory analytical results will be provided to the COGCC within three months of collecting the samples.
3. Bradenhead gas is not to be vented to atmosphere; any gas from the Bradenhead will be routed to an enclosed tank and/or combustor. Operator will implement measures to get an initial estimate of the gas flow rate and/or volume from the bradenhead.
4. Operator will submit a Form 42 (“OTHER”) stating that “bradenhead abatement program has started.”
5. By 6/18/23, conduct a new bradenhead test and submit the Form 17 within ten days of the test and submit a Form 4 Sundry that summarizes current well condition. The sundry should include details of the future plans, flow rate information, pressure data and a discussion of the sample analysis.
Shut in bradenhead pressure shall not exceed 50 psig.
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| Engineer | Form: (04)
403516934
09/06/2023 | 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 an enclosed tank and/or combustor. Shut in bradenhead pressure shall not exceed 50 psig. Operator will implement measures to get an estimate of the gas flow rate and/or volume from the bradenhead.
3. By 8/21/23, conduct a bradenhead test, submit a Form 17, and submit a Form 4 Sundry that summarizes current well condition. The sundry should include details of the future plans, sample analysis interpretation, bradenhead test description, and the flow rate information and pressure data.
4. Shut well in for at least seven days to monitor and collect data to characterize build up pressures then conduct a new bradenhead test and submit the Form 17 within ten days of the test.
5. If a sample has not been collected from surface casing within the last twelve months collect bradenhead gas samples for laboratory analysis. Sampling will comply with Operator Guidance - Bradenhead Testing and Reporting Instructions, Appendix A: Liquid and Gas Sampling. Copies of all final laboratory analytical results will be provided to the ECMC within three months of collecting the samples.
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| Engineer | Form: (04)
403611327
12/11/2023 | 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. Prior to starting bradenhead mitigation, if a sample has not been collected within the last twelve months collect bradenhead and production gas samples for laboratory analysis. Sampling will comply with Operator Guidance - Bradenhead Testing and Reporting Instructions, Appendix A: Liquid and Gas Sampling. Copies of all final laboratory analytical results will be provided to the ECMC within three months of collecting the samples.
3. Operator will implement measures to get an initial estimate of the gas flow rate and/or volume from the bradenhead. During the shut-in period record pressure data to adequately characterize the build-up. This mitigation plan may be used for six consecutive months from the date test reported on the Form 17.
4. By 5/30/24, conduct a new bradenhead test and submit the Form 17 within ten days of the test and submit a Form 4 Sundry that summarizes current well condition. The sundry should include details of the future plans, sample analysis interpretation, and the flow rate information, pressure data and the details of any casing expansions which were performed.
Shut in bradenhead pressure shall not exceed 50 psig.
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| Engineer | Form: (04)
403716796
03/13/2024 | Permission to proceed with stimulation is granted.
If any bradenhead pressure greater than 200 psi is observed or if there is evidence of communication, Operator must shut down stimulation and contact ECMC engineering. |