Environmental Sample

COGIS - Environmental Sample Site Information

#439526 Information

Sample Site ID	439526
FacilityType	OG	Proj Number
County	WELD - 123	Location	NENE 14 7N65W
Elevation	4947	Lat/Long	40.578418/-104.621523
DWR Receipt #		WellDepth

Related Facility/Well
API Number:	05-123-40459	Well Name:	BURROUGHS NORTH 1
Well Status:	PR	Operator Name:	PRAIRIE OPERATING CO LLC
Location:	NENE 14 7N 65W

CECMC Water Quality Database Disclaimer
The analytical data And other information In this database are a compilation Of data collected by CECMC staff, Data submitted To CECMC from a variety Of third parties, And historical data. All analytical data collected by Or submitted To the CECMC Is Public information And CECMC posts the data To this database As a Public service. The data Is provided For informational purposes only. CECMC does Not conduct a detailed review Of quality control/quality assurance protocols, chain Of custody procedures, Or field Or laboratory methodologies On data received from third parties. The level Of review performed On historical data Is unknown. CECMC does Not regularly perform formal data validation For any Of the data posted To this database. The CECMC makes no warranties Or representations Of any kind, express Or implied, regarding the quality, accuracy, reliability, merchantability, Or fitness For a particular purpose Of the data provided herein.

Sample(s)

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674860

674859

Sample ID: 674860 Sample Date: 02/09/2026 Matrix: GAS Collection Point: PRDC Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 674860 Dolan Integration Group ID: DIG-042803
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1180	BTU/cuft
SOP	BUTANE	0.827	MOL %	0.005
SOP	C6+ (hexanes +)	0.063	MOL %	0.005
SOP	CARBON DIOXIDE	2.662	MOL %	0.005
SOP	DELTA 13C C1	-51.3	per mil
SOP	DELTA 13C C2	-36.7	per mil
SOP	DELTA 13C C3	-31.9	per mil
SOP	DELTA 13C CO2	-0.5	per mil
SOP	DELTA 13C iC4	-32.5	per mil
SOP	DELTA 13C nC4	-30	per mil
SOP	DELTA D C1	-295	per mil
SOP	ETHANE	12.838	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	ND	MOL %	0.005	ND
SOP	ISOBUTANE	0.332	MOL %	0.005
SOP	ISOPENTANE	0.084	MOL %	0.005
SOP	METHANE	76.612	MOL %	0.005
SOP	NITROGEN (N2)	1.201	MOL %	0.005
SOP	OXYGEN + ARGON	0.073	MOL %	0.005
SOP	PENTANE	0.081	MOL %	0.005
SOP	PROPANE	5.228	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.719	No Unit

Sample ID: 674859 Sample Date: 02/09/2026 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 674859 Dolan Integration Group ID: DIG-042802
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1152	BTU/cuft
SOP	BUTANE	0.84	MOL %	0.005
SOP	C6+ (hexanes +)	0.053	MOL %	0.005
SOP	CARBON DIOXIDE	2.593	MOL %	0.005
SOP	DELTA 13C C1	-50.9	per mil
SOP	DELTA 13C C2	-36.9	per mil
SOP	DELTA 13C C3	-32.1	per mil
SOP	DELTA 13C CO2	-0.2	per mil
SOP	DELTA 13C iC4	-32.6	per mil
SOP	DELTA 13C nC4	-30	per mil
SOP	DELTA D C1	-292	per mil
SOP	ETHANE	12.593	MOL %	0.005
SOP	ETHENE	ND	MOL %	0.005	ND
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	ND	MOL %	0.005	ND
SOP	ISOBUTANE	0.338	MOL %	0.005
SOP	ISOPENTANE	0.084	MOL %	0.005
SOP	METHANE	74.309	MOL %	0.005
SOP	NITROGEN (N2)	3.238	MOL %	0.005
SOP	OXYGEN + ARGON	0.649	MOL %	0.005
SOP	PENTANE	0.079	MOL %	0.005
SOP	PROPANE	5.223	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.729	No Unit

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COGIS - Environmental Sample Site Information

Sample ID: 674860 Sample Date: 02/09/2026 Matrix: GAS Collection Point: PRDC Type: PRDG Lab: Dolan Integration Group

Sample ID: 674859 Sample Date: 02/09/2026 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group