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 Surface Location
 API# 05-123-30167
Well Classification: GW Status: TA - 10/1/2025
Well Name/No:TROSTEL #32-23
(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:TAStatus Date10/1/2025
FacilityID:301992LocationID:410119
County:WELD #123Location:SWNW 32 11N61W 6
Field:GROVER - #33380Elevation:5093 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1809FNL  605 FWLLat/Long: 40.880830 / -104.236950Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.880830 / -104.236950Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: TA - 10/1/2025             Measured TD: 7780 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        TA - 10/1/2025
Wellbore Permit
Permit #:20090443 Expiration Date:3/11/2010
Proposed Depth/Form:8000 ft.
Surface Mineral Owner Same:Yes
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: DKTA , Formation: DAKOTA , Order: , Unit Acreage: 40, Drill Unit: SWNW
Formation And Spacing:Code: JSND , Formation: J SAND , Order: , Unit Acreage: 40, Drill Unit: SWNW
Formation And Spacing:Code: NB-CD , Formation: NIOBRARA-CODELL , Order: , Unit Acreage: 40, Drill Unit: SWNW

Wellbore Completed
Completion Date:7/23/2009
Spud Date:7/19/2009Spud Date Is:ACTUAL
Measured TD:7780 ft.Measured PB depth:7717 ft.
True Vertical TD:True Vertical PB depth:
Log Types:COMPENSATED DENSITY & NEUTRON MICROLOG, DUAL INDUCTION/GR, CEMENT BOND LONG/GR CCL/VDL
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 1063 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: 545, Top: 0 ft., Bottom: 1063 ft., Determination Method: CBL
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 7733 ft., Weight: , Citings Type: ACTUAL
Cement:Sacks: 1021, Top: 0 ft., Bottom: 7780 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA6678 ft.6946 ft.NN
CODELL6983 ft.7000 ft.NN
D SAND7458 ft.7462 ft.NN
J SAND7537 ft.7648 ft.NN

Formation JSND                     Formation Classification:  GW                     Status:  TA - 10/1/2025                 Interval Top: 7544 ft.    Interval Bottom: 7566 ft.

 Completed Information for Formation J SAND
1st Production Date:10/1/2009Choke Size: 
Formation Name:J SANDCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:9/28/2009
Treatment Summary:FRAC'D J-SAND W/4,000# 40/70 , 340,000# 20/40. AND 20,000# SB EXCEL SAND USING 119,568 GAL 26# PHASER
Tubing Size:2.875 in.Tubing Setting Depth:7161 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:10/28/2009Test Method:PUMPING
Hours Tested:24Gas Type:WET
Gas Disposal:
Test TypeMeasure
BBLS_H2O 166
BBLS_OIL 63
BTU_GAS 1242
CALC_GOR 47
CASING_PRESS 82
GRAVITY_OIL 43
MCF_GAS 3
TUBING_PRESS 260
Perforation Data:
Interval Top:7544 ft.# Of Holes:88
Interval Bottom:7566 ft.Hole Size:0.42 in.
Primary Well Designation:
Noticed Inactive      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveYNoticed Date
03/24/2025
Defined Inactive (TA)YLast Production
08/10/2025
Low ProducingYProduction Period
02/2025 - 01/2026

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
February 2025 - January 2026i
Total Oil Produced (Barrels)0
Total Gas Produced (MCF)0
GOR
GOR DeterminationMCFE
Average BOE per Day0.000
Average MCFE per Day0.000

 Federal Financial Assurance  i 

 Tribal Well  i No