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 Surface Location
 API# 05-045-13800		Well Classification: GW Status: PR - 10/1/2025
Well Name/No:N. DUTTON #12-31C
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:QB ENERGY OPERATING LLC - 10844
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:
Facility Status:PRStatus Date10/1/2025
FacilityID:289536LocationID:334159
County:GARFIELD #045Location:NWNE 12 8S96W 6
Field:GRAND VALLEY - #31290Elevation:6043 ft.
Basin:PICEANCE BASIN  
Planned Location:264FNL  1623 FELLat/Long: 39.371543 / -108.054130Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 39.371540 / -108.054131Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: PR - 10/1/2025             Measured TD: 6605 ft.    Vertical TD: 6555 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        PR - 10/1/2025
Wellbore PermitDIRECTIONAL
Permit #:20070527 Expiration Date:3/1/2008
Proposed Top PZ Location:Sec: Twp: Footage: 841 FNL  1918 FEL
Bottom Hole Location:Sec:12 Twp: 8S 96W Footage: 841 FNL  1918 FEL
Proposed Depth/Form:6625 ft.
Surface Mineral Owner Same:Yes
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: ILES , Formation: ILES , Order: 139-51 , Unit Acreage: 40, Drill Unit: NWNE
Formation And Spacing:Code: WMFK , Formation: WILLIAMS FORK , Order: 139-45 , Unit Acreage: 40, Drill Unit: NWNE
Wellbore Completed
Completion Date:5/8/2007
Spud Date:4/29/2007Spud Date Is:ACTUAL
Measured TD:6605 ft.Measured PB depth:6547 ft.
True Vertical TD:6555 ft.True Vertical PB depth:6497 ft.
Top PZ Location:Sec:12 Twp: 8S 96WFootage: 828 FNL  1897 FEL
Bottom Hole Location:Sec:12 Twp: 8S 96WFootage: 828 FNL  1897 FEL
Log Types:CBL/RMT
Casing:String Type: CONDUCTOR, Hole Size: 20 in., Size: 16 in., Top: 0 ft., Depth: 78 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: , Top: 0 ft., Bottom: 78 ft., Determination Method:
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 1540 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: 457, Top: 0 ft., Bottom: 1540 ft., Determination Method: CALC
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6593 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: 588, Top: 2000 ft., Bottom: 6593 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
WILLIAMS FORK3018 ft.NN
CAMEO5466 ft.NN
ROLLINS5846 ft.NN
COZZETTE6130 ft.NN
CORCORAN6371 ft.NN
MANCOS6482 ft.NN

Formation CRCRN                   Formation Classification:  GW                   Status:  PR - 10/1/2025                 Interval Top: 6381 ft.    Interval Bottom: 6478 ft.

 Completed Information for Formation CORCORAN
1st Production Date:1/12/2008Choke Size:0.375 in.
Formation Name:CORCORANCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:1/11/2008
Treatment Summary:750 GAL 7.5% HCL, 400 SKS 30/50 SAND, 799 KCL
Tubing Size:2.375 in.Tubing Setting Depth:6324 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:1/11/2008Test Method:FLOWING
Hours Tested:24Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 19
BBLS_OIL 0
BTU_GAS 1070
CALC_BBLS_H2O 19
CALC_BBLS_OIL 0
CALC_GOR 0
CALC_MCF_GAS 29
CASING_PRESS 750
MCF_GAS 29
TUBING_PRESS 325
Perforation Data:
Interval Top:6381 ft.# Of Holes:24
Interval Bottom:6478 ft.Hole Size:0.34 in.

Formation WFCM                     Formation Classification:  GW                     Status:  PR - 10/1/2025                 Interval Top: 4456 ft.    Interval Bottom: 5836 ft.

 Completed Information for Formation WILLIAMS FORK - CAMEO
1st Production Date:1/12/2008Choke Size:0.375 in.
Formation Name:WILLIAMS FORK - CAMEOCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:1/11/2008
Treatment Summary:4000 GAL 7.5 HCL, 4071 SKS SAND, 8617 BBLS KCL
Tubing Size:2.375 in.Tubing Setting Depth:6324 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:1/11/2008Test Method:FLOWING
Hours Tested:24Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 199
BBLS_OIL 0
BTU_GAS 1070
CALC_BBLS_H2O 199
CALC_BBLS_OIL 0
CALC_GOR 0
CALC_MCF_GAS 523
CASING_PRESS 750
MCF_GAS 523
TUBING_PRESS 325
Perforation Data:
Interval Top:4456 ft.# Of Holes:120
Interval Bottom:5836 ft.Hole Size:0.34 in.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingN 

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
December 2024 - November 2025i
Total Oil Produced (Barrels)1
Total Gas Produced (MCF)8595
GOR8595000
GOR DeterminationMCFE
Average BOE per Day4.065
Average MCFE per Day23.558

 Federal Financial Assurance  i 

 Tribal Well  i No