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COGIS - WELL SCOUT CARD

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 Surface Location
 API# 05-123-33174
Well Classification: GW Status: PA - 9/29/2025
Well Name/No:Antelope #12-29
(Click Well Name for Production Data)
Click Here for Transporter Gatherer Info
Operator:BONANZA CREEK ENERGY OPERATING COMPANY LLC - 8960
(Click Operator Name for Company Detail Report)
Federal Or State Lease #:
Facility Status:PAStatus Date9/29/2025
FacilityID:422162LocationID:422161
County:WELD #123Location:SWNW 29 5N62W 6
Field:WATTENBERG - #90750Elevation:4657 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1613FNL  1054 FWLLat/Long: 40.373410 / -104.352990Lat/Long Source: Field Measured
As Drilled Location:1662 FNL  1144 FWLLat/Long: 40.373280 / -104.352670Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: AB - 9/29/2025             Measured TD: 6782 ft.    Vertical TD: 6736 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        AB - 9/29/2025
Wellbore PermitDIRECTIONAL
Permit #: Expiration Date:3/20/2013
Proposed Top PZ Location:Sec:29 Twp: 5N 62W Footage: 1974 FNL  650 FWL
Bottom Hole Location:Sec:29 Twp: 5N 62W Footage: 1974 FNL  650 FWL
Proposed Depth/Form:6750 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: NB-CD , Formation: NIOBRARA-CODELL , Order: , Unit Acreage: 40, Drill Unit: SWNW
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 410 ft., Weight: 24 , Citings Type: PLANNED
Cement:Sacks: 290, Top: 0 ft., Bottom: 410 ft.
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6750 ft., Weight: 11.6 , Citings Type: PLANNED
Cement:Sacks: 200, Top: 5900 ft., Bottom: 6750 ft.

Wellbore Completed
Completion Date:4/20/2011
Spud Date:4/16/2011Spud Date Is:ACTUAL
Measured TD:6782 ft.Measured PB depth:6750 ft.
True Vertical TD:6736 ft.True Vertical PB depth:6704 ft.
Top PZ Location:Sec:29 Twp: 5N 62WFootage: 1974 FNL  650 FWL
Bottom Hole Location:Sec:29 Twp: 5N 62WFootage: 1974 FNL  650 FWL
Log Types:CBL, GR, CD, CN, Dl
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 8.625 in., Top: 0 ft., Depth: 446 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 430, Top: 0 ft., Bottom: 446 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6752 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: 470, Top: 3130 ft., Bottom: 6752 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
PARKMAN3397 ft.
SUSSEX4213 ft.
NIOBRARA6306 ft.
FORT HAYS6537 ft.
CODELL6561 ft.

Formation CODL                     Formation Classification:  GW                     Status:  CM - 11/21/2019                Interval Top: 6608 ft.    Interval Bottom: 6618 ft.

 Completed Information for Formation CODELL
1st Production Date:6/15/2011Choke Size: 
Formation Name:CODELLCommingled:Yes
Production Method:
Open Hole Completion:No
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
No Initial Test Data was found for formation CODL.
Perforation Data:
Interval Top:6608 ft.# Of Holes:40
Interval Bottom:6618 ft.Hole Size:0.4 in.

Formation NB-CD                   Formation Classification:  GW                   Status:  AB - 9/29/2025                 Interval Top: 6358 ft.    Interval Bottom: 6618 ft.

 Completed Information for Formation NIOBRARA-CODELL
1st Production Date:6/15/2011Choke Size: 
Formation Name:NIOBRARA-CODELLCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:6/4/2011
Treatment Summary:CODELL PUMPED 39,690 GAL PAD FLUID. PUMPED 84,756 GAL PHASERFRAC W/250,540 LBS 20/40 SAND. ISDP 3310 PSI, ATP 3309 PSI, ATR 22.6 BPM. NIOBRARA POUMPED 31,920 PAD FLUID. PUMPED 96,012 GAL PHASERFRAC W/260,420 L BS. 30/50 SAND. ISDP 3048 PSI, ATP 3742 PSI, ATR 50.4 BPM.
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:N/ATest Method:
Hours Tested:Gas Type:
Gas Disposal:
Test TypeMeasure
BBLS_H2O 9
BBLS_OIL 72
BTU_GAS 1283
CALC_BBLS_H2O 9
CALC_BBLS_OIL 72
CALC_MCF_GAS 76
CASING_PRESS 524
GRAVITY_OIL 41
MCF_GAS 76
Perforation Data:
Interval Top:6358 ft.# Of Holes:88
Interval Bottom:6618 ft.Hole Size:0.4 in.

Formation NBRR                     Formation Classification:  GW                     Status:  CM - 11/21/2019                Interval Top: 6358 ft.    Interval Bottom: 6506 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:6/15/2011Choke Size: 
Formation Name:NIOBRARACommingled:Yes
Production Method:
Open Hole Completion:No
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
No Initial Test Data was found for formation NBRR.
Perforation Data:
Interval Top:6358 ft.# Of Holes:48
Interval Bottom:6506 ft.Hole Size:0.4 in.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY09/29/2025
Out Of Service RepurposedN 
Out Of ServiceYPlugging Due Date
12/31/2029
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingN 

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
January 2025 - December 2025i
Total Oil Produced (Barrels)0
Total Gas Produced (MCF)0
GOR
GOR DeterminationMCFE
Average BOE per Day0.000
Average MCFE per Day0.000

 Federal Financial Assurance  i 

 Tribal Well  i No