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 Surface Location
 API# 05-123-38733
Well Classification: OW Status: PR - 10/1/2025
Well Name/No:Antelope #K21-O24-15HNB
(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:PRStatus Date10/1/2025
FacilityID:435682LocationID:435681
County:WELD #123Location:NWNE 15 5N62W 6
Field:WATTENBERG - #90750Elevation:4680 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:392FNL  2545 FELLat/Long: 40.406200 / -104.309100Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.406200 / -104.309100Lat/Long Source: Field Measured
 
FracFocus
Disclosure: Sidetrack #00
Start Date: 3/24/2014
End Date: 3/25/2014
Reported: 4/29/2014
Days to report: 35
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 10/1/2025             Measured TD: 10925 ft.    Vertical TD: 6301 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 10/1/2025
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:12/29/2015
Proposed Top PZ Location:Sec:15 Twp: 5N 62W Footage: 755 FNL  2401 FWL
Bottom Hole Location:Sec:15 Twp: 5N 62W Footage: 470 FSL  2534 FWL
Proposed Depth/Form:10967 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: NBRR , Formation: NIOBRARA , Order: , Unit Acreage: 320, Drill Unit: GWA
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 410 ft., Weight: 36 , Citings Type: PLANNED
Cement:Sacks: 200, Top: 0 ft., Bottom: 410 ft.
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: 7 in., Top: 0 ft., Depth: 6722 ft., Weight: 26 , Citings Type: PLANNED
Cement:Sacks: 500, Top: 2500 ft., Bottom: 6722 ft.
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 6622 ft., Depth: 10967 ft., Weight: 11.6 , Citings Type: PLANNED
Cement:Sacks: , Top: , Bottom:

Wellbore Completed
Completion Date:2/15/2014
Spud Date:2/7/2014Spud Date Is:ACTUAL
Measured TD:10925 ft.Measured PB depth:10843 ft.
True Vertical TD:6301 ft.True Vertical PB depth:6301 ft.
Top PZ Location:Sec:15 Twp: 5N 62WFootage: 755 FNL  2401 FWL
Bottom Hole Location:Sec:15 Twp: 5N 62WFootage: 470 FSL  2534 FWL
Log Types:Mud Logs CBL Logs GR Logs
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 434 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 124, Top: 0 ft., Bottom: 434 ft., Determination Method: CALC
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: 7 in., Top: 0 ft., Depth: 6746 ft., Weight: 26 , Citings Type: ACTUAL
Cement:Sacks: 1005, Top: 0 ft., Bottom: 6746 ft., Determination Method: CBL
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 6433 ft., Depth: 10890 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: , Top: , Bottom: , Determination Method: VISU
FormationInterval TopLog BottomCoredDSTs
PARKMAN3375 ft.
SHARON SPRINGS6173 ft.
NIOBRARA6358 ft.

Formation NBRR                     Formation Classification:  OW                     Status:  PR - 10/1/2025                 Interval Top: 6805 ft.    Interval Bottom: 10925 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:4/14/2014Choke Size: 
Formation Name:NIOBRARACommingled:No
Production Method:
Open Hole Completion:Yes
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:3/24/2014Treatment End Date:3/25/2014
Treatment Summary:18 Stage Niobrara pumped a total of 56,749 bbls of fluid (Phaser) and 4,191,160 # of sand (40/70 Ottawa, 30/50 Ottawa, 20/40 PropStar); ATP 3,975 psi, ATR 51.00 bpm, Final ISDP 3,053 psi; completed with sliding sleeves and casing packers.
Total fluid used in treatment (bbls):56749Max pressure during treatment (psi):4866
Total gas used in treatment (mcf):Fluid density (lbs/gal):8.33
Type Of gas:Number Of staged intervals:18
Total acid used in treatment (bbls):Min frac gradient (psi/ft):0.92
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):14060
Fresh water used in treatment (bbls):56749Disposition method For flowback:DISPOSAL
Total proppant used (lbs):4191160Green completions techniques utilized:Yes
Reason green techniques Not utilized: 
Tubing Size:2.375 in.Tubing Setting Depth:6415 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:4/23/2014Test Method:Flowing
Hours Tested:72Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 1512
BBLS_OIL 699
BTU_GAS 1311
CALC_BBLS_H2O 504
CALC_BBLS_OIL 233
CALC_GOR 631
CALC_MCF_GAS 147
CASING_PRESS 984
GRAVITY_OIL 43
MCF_GAS 441
TUBING_PRESS 329
Perforation Data:
Interval Top:6805 ft.# Of Holes:
Interval Bottom:10925 ft.Hole Size:
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
January 2025 - December 2025i
Total Oil Produced (Barrels)6383
Total Gas Produced (MCF)8377
GOR1312
GOR DeterminationBOE
Average BOE per Day21.321
Average MCFE per Day123.655

 Federal Financial Assurance  i 

 Tribal Well  i No