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COGIS - SPILL OR RELEASE INFORMATION

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Antelope 21-19 - #493055 InformationStatus: CL - 12/4/2025
Spill Type: ReleaseFacility Name/No.:Antelope 21-19 /
Facility Type:SPILL OR RELEASEFacility Status:CL
Date of Discovery:12/2/2025Date Closed:12/4/2025
Operator:BONANZA CREEK ENERGY OPERATING COMPANY LLC Operator Number:8960
County:WELD  - #123Location:NENW 19 5N62W
Doc Number:404459762Lat/Long:40.390173 / -104.367863  Source: ACTUAL based On LatLong
Municipality
(if within municipal boundaries):
--
Waters of the State: Impacted Media:
Related Remediation Project Number
if work proceeding under an approved Form 27:
N/A
 
Spill Description:
While conducting facility decommissioning activities at Bonanza Creek's Antelope 21-19, historical impacts were discovered.
 
Resolution:
Resolving Document:  404459762Closure Requested:  12/04/2025
Resolution:  Work Procedeing under Form 27
 
Operator Information:
Operator:BONANZA CREEK ENERGY OPERATING COMPANY LLC
Oper. No.8960
Address:555 17TH STREET SUITE 3700  DENVER  CO 80202
Type of Facility:SPILL OR RELEASE
Fac. Name:Antelope 21-19 -
County Name:WELD
qtrqtr: NENWsection: 19township: 5Nrange: 62Wmeridian: 6