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 Surface Location
 API# 05-001-09014		Well Classification: OW Status: PR - 8/1/2025
Well Name/No:ZARLENGO #B1
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:KP KAUFFMAN COMPANY INC - 46290
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:
Facility Status:PRStatus Date8/1/2025
FacilityID:203455LocationID:320326
County:ADAMS #001Location:SWNW 4 1S67W 6
Field:SPINDLE - #77900Elevation:5148 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1980FNL  560 FWLLat/Long: 39.994959 / -104.901382Lat/Long Source: Calculated From Footages
As Drilled Location:Footages Not AvailableLat/Long: 39.995500 / -104.901489Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 8/1/2025             Measured TD: 5220 ft.    Vertical TD: 0 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 8/1/2025
Wellbore Permit
Permit #:19910186 Expiration Date:7/12/1991
Proposed Depth/Form:5300 ft.
Surface Mineral Owner Same:Not available
Mineral Owner:FEESurface Owner:Not available
Unit: Unit Number: 
Formation And Spacing:Code: SUSX , Formation: SUSSEX , Order: 12 , Unit Acreage: 80, Drill Unit: W2NW
Wellbore Completed
Completion Date:4/10/1991
Spud Date:3/26/1991Spud Date Is:ACTUAL
Measured TD:5220 ft.Measured PB depth:0 ft.
True Vertical TD:0 ft.True Vertical PB depth:
Log Types:DUAL INDUCTION & COMPENSATED DENSITY
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 222 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 200, Top: 0 ft., Bottom: 222 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 5220 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: 200, Top: 4540 ft., Bottom: 5220 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
FOX HILLS712 ft.
PIERRE933 ft.
SUSSEX4965 ft.

Formation SUSX                     Formation Classification:  OW                     Status:  PR - 8/1/2025                  Interval Top: 4965 ft.    Interval Bottom: 5052 ft.

 Completed Information for Formation SUSSEX
1st Production Date:4/10/1991Choke Size:0.000 in.
Formation Name:SUSSEXCommingled:
Production Method:PUMPING
Open Hole Completion:
Formation Treatment
Treatment Date:4/10/1991
Treatment Summary:SEE DOCUMENT # 305069
Tubing Size:2.375 in.Tubing Setting Depth:4978 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:4/23/1991Test Method:PUMPING
Hours Tested:24Gas Type:
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 44
BBLS_OIL 38
CALC_GOR 1579
GRAVITY_OIL 39
MCF_GAS 60
Perforation Data:
Interval Top:4965 ft.# Of Holes:55
Interval Bottom:5052 ft.Hole Size:
Primary Well Designation:
Low Producing      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingYProduction Period
01/2025 - 12/2025

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
January 2025 - December 2025i
Total Oil Produced (Barrels)52
Total Gas Produced (MCF)201
GOR3865
GOR DeterminationBOE
Average BOE per Day0.232
Average MCFE per Day1.358

 Federal Financial Assurance  i 

 Tribal Well  i No