Environmental Sample

COGIS - Environmental Sample Site Information

#439529 Information

Sample Site ID	439529
FacilityType	OG	Proj Number
County	WELD - 123	Location	NENE 14 7N65W
Elevation	4948	Lat/Long	40.578214/-104.621525
DWR Receipt #		WellDepth

Related Facility/Well
API Number:	05-123-40462	Well Name:	BURROUGHS NORTH 4
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)

All

674862

674861

Sample ID: 674862 Sample Date: 02/09/2026 Matrix: GAS Collection Point: PRDC Type: PRDG Lab: Dolan Integration Group

Sample Results for Sample # 674862 Dolan Integration Group ID: DIG-042805
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	1230	BTU/cuft
SOP	BUTANE	1.309	MOL %	0.005
SOP	C6+ (hexanes +)	0.017	MOL %	0.005
SOP	CARBON DIOXIDE	2.698	MOL %	0.005
SOP	DELTA 13C C1	-51.6	per mil
SOP	DELTA 13C C2	-36.8	per mil
SOP	DELTA 13C C3	-32	per mil
SOP	DELTA 13C CO2	-0.1	per mil
SOP	DELTA 13C iC4	-32.7	per mil
SOP	DELTA 13C nC4	-29.7	per mil
SOP	Delta 13C nC5	-29.2	per mil
SOP	DELTA D C1	-294	per mil
SOP	ETHANE	14.021	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	0.514	MOL %	0.005
SOP	ISOPENTANE	0.125	MOL %	0.005
SOP	METHANE	73.067	MOL %	0.005
SOP	NITROGEN (N2)	1.148	MOL %	0.005
SOP	OXYGEN + ARGON	0.074	MOL %	0.005
SOP	PENTANE	0.117	MOL %	0.005
SOP	PROPANE	6.911	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.751	No Unit

Sample ID: 674861 Sample Date: 02/09/2026 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group

Sample Results for Sample # 674861 Dolan Integration Group ID: DIG-042804
Method Code	Param Description	Result Value	Units	Detection Limit	Qualifier
SOP	BRITISH THERMAL UNITS	39	BTU/cuft
SOP	BUTANE	ND	MOL %	0.005	ND
SOP	C6+ (hexanes +)	ND	MOL %	0.005	ND
SOP	CARBON DIOXIDE	ND	MOL %	0.005	ND
SOP	DELTA 13C C1	-49	per mil
SOP	DELTA 13C C2	-35.1	per mil
SOP	DELTA 13C C3	-31.5	per mil
SOP	DELTA D C1	-288	per mil
SOP	ETHANE	0.04	MOL %	0.005
SOP	ETHENE	0.009	MOL %	0.005
SOP	Helium	ND	MOL %	0.005	ND
SOP	HYDROGEN	86.684	MOL %	0.005
SOP	ISOBUTANE	ND	MOL %	0.005	ND
SOP	ISOPENTANE	ND	MOL %	0.005	ND
SOP	METHANE	0.399	MOL %	0.005
SOP	NITROGEN (N2)	12.125	MOL %	0.005
SOP	OXYGEN + ARGON	0.73	MOL %	0.005
SOP	PENTANE	ND	MOL %	0.005	ND
SOP	PROPANE	0.012	MOL %	0.005
SOP	SPECIFIC GRAVITY	0.963	No Unit

COGIS DB

Sample Site Search

COGIS - Environmental Sample Site Information

Sample ID: 674862 Sample Date: 02/09/2026 Matrix: GAS Collection Point: PRDC Type: PRDG Lab: Dolan Integration Group

Sample ID: 674861 Sample Date: 02/09/2026 Matrix: GAS Collection Point: BDH Type: BDH Lab: Dolan Integration Group