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 Surface Location
 API# 05-123-20458		Well Classification: GW Status: TA - 7/30/2020
Well Name/No:LOST CREEK O'BRIEN #4-20
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:O'BRIEN ENERGY RESOURCES CORP - 65110
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:
Facility Status:TAStatus Date7/30/2020
FacilityID:260339LocationID:331298
County:WELD #123Location:NWSE 20 3N62W 6
Field:PEACOCK - #67955Elevation:4669 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1950FSL  1940 FELLat/Long: 40.209009 / -104.345097Lat/Long Source: Calculated From Footages
As Drilled Location:Footages Not AvailableLat/Long: 40.209280 / -104.345330Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: TA - 7/30/2020             Measured TD: 6937 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        TA - 7/30/2020
Wellbore Permit
Permit #:20011119 Expiration Date:6/7/2002
Proposed Depth/Form:6950 ft.
Surface Mineral Owner Same:No
Mineral Owner:STATESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: JSND , Formation: J SAND , Order: , Unit Acreage: 40, Drill Unit: NWSE
Wellbore Completed
Completion Date:10/20/2001
Spud Date:8/12/2002Spud Date Is:ACTUAL
Measured TD:6937 ft.Measured PB depth:
True Vertical TD:True Vertical PB depth:
Log Types:DIL DCDG
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 589 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 415, Top: 0 ft., Bottom: 589 ft., Determination Method: CALC
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 6937 ft., Weight: 11.60 , Citings Type: ACTUAL
Cement:Sacks: 150, Top: 5900 ft., Bottom: 6977 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA6128 ft.NN
CARLILE6395 ft.NN
GREENHORN6445 ft.NN
BENTONITE6672 ft.NN
D SAND6775 ft.NN
J SAND6832 ft.NN

Formation JSND                     Formation Classification:  GW                     Status:  TA - 7/30/2020                 Interval Top: 6836 ft.    Interval Bottom: 6850 ft.

 Completed Information for Formation J SAND
1st Production Date:N/AChoke Size: 
Formation Name:J SANDCommingled:
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:10/20/2001
Treatment Summary:SEE SCANNED DOC. #01098356
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth: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
BTU_GAS 1300
CALC_MCF_GAS 40
MCF_GAS 40
Perforation Data:
Interval Top:6836 ft.# Of Holes:56
Interval Bottom:6850 ft.Hole Size:0.375 in.
Primary Well Designation:
Out Of Service      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceYPlugging Due Date
12/31/2027
Inactive ExceptionN 
Noticed InactiveN 
Defined Inactive (TA)YLast Production
06/30/2017
Low ProducingYProduction Period
03/2025 - 02/2026

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
March 2025 - February 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