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 Surface Location
 API# 05-123-34096		Well Classification: OW Status: PA - 10/2/2025
Well Name/No:Antelope #43-17
(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 Date10/2/2025
FacilityID:424583LocationID:424559
County:WELD #123Location:NESE 17 5N62W 6
Field:WATTENBERG - #90750Elevation:4691 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:2172FSL  819 FELLat/Long: 40.398320 / -104.340780Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.398320 / -104.340770Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: AB - 10/2/2025             Measured TD: 6737 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        AB - 10/2/2025
Wellbore Permit
Permit #: Expiration Date:8/1/2013
Bottom Hole Location:Sec:17 Twp: 5N 62W Footage: 2172 FSL  819 FEL
Proposed Depth/Form:6900 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: NESE
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 8.625 in., Top: 0 ft., Depth: 470 ft., Weight: 24 , Citings Type: PLANNED
Cement:Sacks: 242, Top: 0 ft., Bottom: 470 ft.
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6900 ft., Weight: 11.6 , Citings Type: PLANNED
Cement:Sacks: 200, Top: 6050 ft., Bottom: 6900 ft.
Wellbore Completed
Completion Date:10/16/2011
Spud Date:10/12/2011Spud Date Is:ACTUAL
Measured TD:6737 ft.Measured PB depth:6688 ft.
True Vertical TD:True Vertical PB depth:
Bottom Hole Location:Sec:17 Twp: 5N 62WFootage: 2172 FSL  819 FEL
Log Types:CBL, GR, CD, CN, Dl
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 8.625 in., Top: 0 ft., Depth: 525 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 520, Top: 0 ft., Bottom: 525 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6702 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: 510, Top: 1700 ft., Bottom: 6702 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
PARKMAN3402 ft.
SUSSEX4115 ft.
NIOBRARA6294 ft.
FORT HAYS6521 ft.
CODELL6547 ft.

Formation CODL                     Formation Classification:  OW                     Status:  CM - 12/6/2019                 Interval Top: 6548 ft.    Interval Bottom: 6556 ft.

 Completed Information for Formation CODELL
1st Production Date:N/AChoke 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:6548 ft.# Of Holes:32
Interval Bottom:6556 ft.Hole Size:0.4 in.

Formation NB-CD                   Formation Classification:  OW                   Status:  AB - 10/2/2025                 Interval Top: 6298 ft.    Interval Bottom: 6556 ft.

 Completed Information for Formation NIOBRARA-CODELL
1st Production Date:N/AChoke Size: 
Formation Name:NIOBRARA-CODELLCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:11/5/2011
Treatment Summary:CODELL PUMPED 32,508 GAL PAD FLUID. PUMPED 102,732 GAL PHASERFRAC W/245,900 LBS 20/40 SAND. ISDP 3063 PSI, ATP 3377 PSI, ATR 22.3 BPM. NIOBRARA PUMPED 19,530 PAD FLUID. PUMPED 116,592 GAL PHASER FRAC W/260,630 LBS. PSI, 30/50 SAND. ISDP 2776 PSI ATP 3465 PSI, ATR 50.2 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 21
BBLS_OIL 65
BTU_GAS 1283
CALC_BBLS_H2O 21
CALC_BBLS_OIL 65
CALC_GOR 400
CALC_MCF_GAS 26
CASING_PRESS 790
GRAVITY_OIL 40
MCF_GAS 26
Perforation Data:
Interval Top:6298 ft.# Of Holes:80
Interval Bottom:6556 ft.Hole Size:0.4 in.

Formation NBRR                     Formation Classification:  OW                     Status:  CM - 12/6/2019                 Interval Top: 6298 ft.    Interval Bottom: 6448 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:N/AChoke 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:6298 ft.# Of Holes:48
Interval Bottom:6448 ft.Hole Size:0.4 in.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY10/02/2025
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 Determination 
Average BOE per Day0.000
Average MCFE per Day0.000

 Federal Financial Assurance  i 

 Tribal Well  i No