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 Surface Location
 API# 05-123-33353
Well Classification: OW Status: PA - 9/18/2025
Well Name/No:State Antelope #11-2HZ
(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 #:8039.4
Facility Status:PAStatus Date9/18/2025
FacilityID:422689LocationID:422681
County:WELD #123Location:LOT4 2 5N62W 6
Field:WATTENBERG - #90750Elevation:4655 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:460FNL  460 FWLLat/Long: 40.435510 / -104.298380Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.435490 / -104.298420Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: AB - 9/18/2025             Measured TD: 11216 ft.    Vertical TD: 6219 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        AB - 9/18/2025
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:4/16/2013
Proposed Top PZ Location:Sec:2 Twp: 5N 62W Footage: 1115 FNL  1447 FWL
Bottom Hole Location:Sec:2 Twp: 5N 62W Footage: 1980 FSL  460 FEL
Proposed Depth/Form:11080 ft.
Surface Mineral Owner Same:Yes
Mineral Owner:STATESurface Owner:STATE
Unit: Unit Number:
Formation And Spacing:Code: NBRR , Formation: NIOBRARA , Order: , Unit Acreage: 644, Drill Unit: All
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 9.625 in., Top: 0 ft., Depth: 410 ft., Weight: 36 , Citings Type: PLANNED
Cement:Sacks: 180, Top: 0 ft., Bottom: 410 ft.
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: 7 in., Top: 0 ft., Depth: 6900 ft., Weight: 26 , Citings Type: PLANNED
Cement:Sacks: 888, Top: 0 ft., Bottom: 6900 ft.
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 0 ft., Depth: 11080 ft., Weight: 11.6 , Citings Type: PLANNED
Cement:Sacks: 0, Top: , Bottom:

Wellbore Completed
Completion Date:6/29/2011
Spud Date:5/21/2011Spud Date Is:ACTUAL
Measured TD:11216 ft.Measured PB depth:11176 ft.
True Vertical TD:6219 ft.True Vertical PB depth:6219 ft.
Top PZ Location:Sec:2 Twp: 5N 62WFootage: 833 FNL  945 FWL
Bottom Hole Location:Sec:2 Twp: 5N 62WFootage: 1980 FSL  460 FEL
Log Types:CBL, GR, CD, CN, DI
Log Types:CBL, MUDLOG, GR BY LWD (PRESENTED ON MUDLOG), RESISTIVITY BY LWD (PRESENTED ON MUDLOG)
Log Types:
Casing:String Type: CONDUCTOR, Hole Size: , Size: , Top: 0 ft., Depth: 55 ft., Weight: 75 , Citings Type: ACTUAL
Cement:Sacks: 100, Top: 0 ft., Bottom: 55 ft., Determination Method: CALC
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 9.625 in., Top: 0 ft., Depth: 427 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 280, Top: 0 ft., Bottom: 427 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: , Top: 0 ft., Depth: 6545 ft., Weight: 26 , Citings Type: ACTUAL
Cement:Sacks: 520, Top: 3820 ft., Bottom: 6545 ft., Determination Method: CBL
Casing:String Type: S.C. 1.1, Hole Size: 8.75 in., Size: , Top: , Depth: 3330 ft., Weight: 26 , Citings Type: ACTUAL
Cement:Sacks: 400, Top: 540 ft., Bottom: 3330 ft., Determination Method: CBL
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 5444 ft., Depth: 11216 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: , Top: , Bottom: , Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
SHARON SPRINGS6007 ft.
NIOBRARA6220 ft.

Formation NBRR                     Formation Classification:  OW                     Status:  AB - 9/18/2025                 Interval Top: 6544 ft.    Interval Bottom: 10986 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:7/30/2011Choke Size: 
Formation Name:NIOBRARACommingled:No
Production Method:
Open Hole Completion:Yes
Formation Treatment
Treatment Date:7/24/2011
Treatment Summary:16 stages: Pumped 56279 bbls of fluid with 3794500 lbs sand, completed with sliding sleeves and casing packers. Avg P 4330 psi, Avg Rate 51.0 bpm, Final ISDP 2751 psi
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:5416 ft.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 783
BBLS_OIL 1086
BTU_GAS 1252
CALC_BBLS_H2O 261
CALC_BBLS_OIL 362
CALC_GOR 2215
CALC_MCF_GAS 802
CASING_PRESS 109
GRAVITY_OIL 46
MCF_GAS 2406
TUBING_PRESS 325
Perforation Data:
Interval Top:6544 ft.# Of Holes:16
Interval Bottom:10986 ft.Hole Size:0 in.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY09/18/2025
Out Of Service RepurposedN 
Out Of ServiceYPlugging Due Date
12/31/2028
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