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 Surface Location
 API# 05-123-45855
Well Classification: OW Status: PR - 12/1/2023
Well Name/No:Castor 8-59 #19-24-16
(Click Well Name for Production Data)
Click Here for Transporter Gatherer Info
Operator:BISON IV OPERATING LLC - 10670
(Click Operator Name for Company Detail Report)
Federal Or State Lease #:
Facility Status:PRStatus Date12/1/2023
FacilityID:452994LocationID:452871
County:WELD #123Location:NESE 19 8N59W 6
Field:DJ HORIZONTAL NIOBRARA - #16950Elevation:4861 ft.
Planned Location:1421FSL  410 FELLat/Long: 40.644408 / -104.011993Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.644407 / -104.011989Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 12/1/2023             Measured TD: 13451 ft.    Vertical TD: 6124 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 12/1/2023
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:11/8/2019
Prop Depth/Form:13667 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: NBRR , Formation: NIOBRARA , Order: 535-872 , Unit Acreage: 960, Drill Unit: 24:E/2, 19:ALL
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 100 ft., Weight: 43 , Citings Type: PLANNED
Cement:Sacks: 50, Top: 0 ft., Bottom: 100 ft.
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 1850 ft., Weight: 36 , Citings Type: PLANNED
Cement:Sacks: 650, Top: 0 ft., Bottom: 1850 ft.
Casing:String Type: 1ST, Hole Size: 8.5 in., Size: 5.5 in., Top: 0 ft., Depth: 13667 ft., Weight: 20 , Citings Type: PLANNED
Cement:Sacks: 1860, Top: 0 ft., Bottom: 13667 ft.

Wellbore Completed
Completion Date:12/6/2017
Spud Date:11/28/2017Spud Date Is:ACTUAL
Measured TD:13451 ft.Measured PB depth:13374 ft.
True Vertical TD:6124 ft.True Vertical PB depth:6125 ft.
Top PZ Location:Sec:19 Twp: 8N 59WFootage: 648 FSL  600 FELDepth
Bottom Hole Location:Sec:24 Twp: 8N 60WFootage: 607 FSL  2149 FELDepth
Log Types:MWD/GR, CBL, Mud Log, DIL
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 103 ft., Weight: 43 , Citings Type: ACTUAL
Cement:Sacks: 270, Top: 0 ft., Bottom: 103 ft., Determination Method: VISU
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 1900 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 663, Top: 0 ft., Bottom: 1900 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 8.5 in., Size: 5.5 in., Top: 0 ft., Depth: 13422 ft., Weight: 20 , Citings Type: ACTUAL
Cement:Sacks: 1488, Top: 970 ft., Bottom: 13422 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
PARKMAN3204 ft.3664 ft.NN
SUSSEX3860 ft.3960 ft.NN
SHANNON4610 ft.4810 ft.NN
SHARON SPRINGS5997 ft.6121 ft.NN
NIOBRARA6121 ft.NN

Formation NBRR                     Formation Classification:  OW                     Status:  PR - 12/1/2023                 Interval Top: 6523 ft.    Interval Bottom: 13276 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:2/14/2018Choke Size:32.000 in.
Formation Name:NIOBRARACommingled:No
Production Method:
Open Hole Completion:
Tubing Size:2.375 in.Tubing Setting Depth:6184 ft.
Tubing Packer Depth:6178 ft.Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:2/14/2018Test Method:Flowing
Hours Tested:24Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 1070
BBLS_OIL 307
BTU_GAS 1600
CALC_BBLS_H2O 1070
CALC_BBLS_OIL 307
CALC_GOR 1
CALC_MCF_GAS 288
GRAVITY_OIL 36
MCF_GAS 288
TUBING_PRESS 336
Perforation Data:
Interval Top:6523 ft.# Of Holes:1128
Interval Bottom:13276 ft.Hole Size:0.34 in.
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
August 2023 - July 2024i
Total Oil Produced (Barrels)13289
Total Gas Produced (MCF)11730
GOR882
GOR DeterminationBOE
Average BOE per Day41.869
Average MCFE per Day242.846

 Federal Financial Assurance  i 

 Tribal Well  i No