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 Surface Location
 API# 05-123-39887
Well Classification: OW Status: PR - 9/1/2025
Well Name/No:Antelope #A11-E14-15HNB
(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 Date9/1/2025
FacilityID:438127LocationID:429977
County:WELD #123Location:NWNW 15 5N62W 6
Field:WATTENBERG - #90750Elevation:4698 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:342FNL  1092 FWLLat/Long: 40.406290 / -104.314940Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.406290 / -104.314950Lat/Long Source: Field Measured
 
FracFocus
Disclosure: Sidetrack #00
Start Date: 9/29/2014
End Date: 10/1/2014
Reported: 10/28/2014
Originally Reported: 10/4/2014
Days to report: 27
Days to report: 3
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 9/1/2025             Measured TD: 11063 ft.    Vertical TD: 6341 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 9/1/2025
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:7/14/2016
Proposed Top PZ Location:Sec:15 Twp: 5N 62W Footage: 591 FNL  309 FWL
Bottom Hole Location:Sec:15 Twp: 5N 62W Footage: 470 FSL  330 FWL
Proposed Depth/Form:11001 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: 6717 ft., Weight: 26 , Citings Type: PLANNED
Cement:Sacks: 500, Top: 2500 ft., Bottom: 6717 ft.
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 6617 ft., Depth: 11001 ft., Weight: 11.6 , Citings Type: PLANNED
Cement:Sacks: , Top: , Bottom:

Wellbore Completed
Completion Date:8/31/2014
Spud Date:8/24/2014Spud Date Is:ACTUAL
Measured TD:11063 ft.Measured PB depth:11010 ft.
True Vertical TD:6341 ft.True Vertical PB depth:6341 ft.
Top PZ Location:Sec:15 Twp: 5N 62WFootage: 591 FNL  309 FWL
Bottom Hole Location:Sec:15 Twp: 5N 62WFootage: 470 FSL  330 FWL
Log Types:CBL, MUD, MWD
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 466 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 190, Top: 0 ft., Bottom: 466 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: 7 in., Top: 0 ft., Depth: 6731 ft., Weight: 26 , Citings Type: ACTUAL
Cement:Sacks: 690, Top: 460 ft., Bottom: 6731 ft., Determination Method: CALC
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 6480 ft., Depth: 11055 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: , Top: , Bottom: , Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
SHARON SPRINGS6278 ft.NN
NIOBRARA6429 ft.NN

Formation NBRR                     Formation Classification:  OW                     Status:  PR - 9/1/2025                  Interval Top: 6793 ft.    Interval Bottom: 11063 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:10/15/2014Choke Size: 
Formation Name:NIOBRARACommingled:No
Production Method:
Open Hole Completion:Yes
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:9/29/2014Treatment End Date:10/1/2014
Treatment Summary:28 Stage Niobrara pumped a total of 70,859 bbls of fluid (Phaser) and 4,195,971 # of sand (40/70 Ottawa, 30/50 Ottawa, 20/40 InnoProp); ATP 4,484 psi, ATR 47.00 bpm, Final ISDP 3,071 psi; completed with sliding sleeves and casing packers.
Total fluid used in treatment (bbls):70859Max pressure during treatment (psi):4986
Total gas used in treatment (mcf):Fluid density (lbs/gal):8.33
Type Of gas:Number Of staged intervals:28
Total acid used in treatment (bbls):Min frac gradient (psi/ft):0.92
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):25814
Fresh water used in treatment (bbls):70859Disposition method For flowback:DISPOSAL
Total proppant used (lbs):4195971Green completions techniques utilized:Yes
Reason green techniques Not utilized: 
Tubing Size:2.375 in.Tubing Setting Depth:6580 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:10/27/2014Test Method:Flowing
Hours Tested:72Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 1245
BBLS_OIL 915
BTU_GAS 1311
CALC_BBLS_H2O 415
CALC_BBLS_OIL 305
CALC_GOR 469
CALC_MCF_GAS 173
CASING_PRESS 975
GRAVITY_OIL 43
MCF_GAS 429
TUBING_PRESS 350
Perforation Data:
Interval Top:6793 ft.# Of Holes:
Interval Bottom:11063 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)222
Total Gas Produced (MCF)3600
GOR16216
GOR DeterminationMCFE
Average BOE per Day2.280
Average MCFE per Day13.234

 Federal Financial Assurance  i 

 Tribal Well  i No