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 Surface Location
 API# 05-123-26741		Well Classification: OW Status: PA - 4/3/2023
Well Name/No:LEFFLER #14-35
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:PDC ENERGY INC - 69175
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:
Facility Status:PAStatus Date4/3/2023
FacilityID:296327LocationID:310643
County:WELD #123Location:SWSW 35 7N66W 6
Field:EATON - #19350Elevation:4880 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:840FSL  839 FWLLat/Long: 40.526640 / -104.752500Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.526640 / -104.752530Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PA - 4/3/2023             Measured TD: 7563 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PA - 4/3/2023
Wellbore Permit
Permit #:20081846 Expiration Date:6/4/2009
Proposed Depth/Form:7960 ft.
Surface Mineral Owner Same:Yes
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: JSND , Formation: J SAND , Order: , Unit Acreage: 320, Drill Unit: S2
Formation And Spacing:Code: NB-CD , Formation: NIOBRARA-CODELL , Order: , Unit Acreage: 80, Drill Unit: W2SW4
Formation And Spacing:Code: SX-SN , Formation: SUSSEX-SHANNON , Order: , Unit Acreage: 80, Drill Unit: W2SW4
Casing:String Type: S.C. 1.1, Hole Size: , Size: , Top: , Depth: , Weight: , Citings Type: PLANNED
Cement:Sacks: 450, Top: 0 ft., Bottom: 6260 ft.
Wellbore Completed
Completion Date:12/16/2008
Spud Date:12/9/2008Spud Date Is:ACTUAL
Measured TD:7563 ft.Measured PB depth:7463 ft.
True Vertical TD:True Vertical PB depth:
Log Types:CBL, CNL/CDL, DUAL INDUCTION
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 866 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 610, Top: 0 ft., Bottom: 866 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 7503 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: 790, Top: 1300 ft., Bottom: 7503 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA7030 ft.NN
FORT HAYS7298 ft.NN
CODELL7319 ft.NN

Formation CODL                     Formation Classification:  GW                     Status:  CM - 9/30/2010                 Interval Top: 7324 ft.    Interval Bottom: 7332 ft.

 Completed Information for Formation CODELL
1st Production Date:N/AChoke Size: 
Formation Name:CODELLCommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:2/9/2009
Treatment Summary:FRAC'D CODELL WITH 643 BBLS OF SILVERSTIM 22# PAD, 1968 BBLS OF SILVERSTIM 22# FLUID SYSTEM, 218260 LBS OF 20/40 WHITE SAND AND 8000 LBS OF SB EXCEL 20/40 RESIN COATED PROPPANT.
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
No Initial Test Data was found for formation CODL.
Perforation Data:
Interval Top:7324 ft.# Of Holes:24
Interval Bottom:7332 ft.Hole Size:0.34 in.

Formation NB-CD                   Formation Classification:  OW                   Status:  AB - 12/14/2022                Interval Top: 7034 ft.    Interval Bottom: 7332 ft.

 Completed Information for Formation NIOBRARA-CODELL
1st Production Date:2/23/2009Choke Size: 
Formation Name:NIOBRARA-CODELLCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:12/16/2008
Treatment Summary:
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
BBLS_H2O 4
BBLS_OIL 29
BTU_GAS 1317
CALC_BBLS_H2O 4
CALC_BBLS_OIL 29
CALC_GOR 1172
CALC_MCF_GAS 34
CASING_PRESS 1400
GRAVITY_OIL 45
MCF_GAS 34
TUBING_PRESS 1000
Perforation Data:
Interval Top:7034 ft.# Of Holes:52
Interval Bottom:7332 ft.Hole Size:0.34 in.

Formation NBRR                     Formation Classification:  GW                     Status:  CM - 9/30/2010                 Interval Top: 7034 ft.    Interval Bottom: 7166 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:N/AChoke Size: 
Formation Name:NIOBRARACommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:2/16/2009
Treatment Summary:PERF NIOBRARA "A" 7034'-7036' (4 HOLES), NIOBRARA "B" 7158'-7166' (24 HOLES). FRAC'D NIOBRARA WITH 500 GALS OF 15% HCL, 502 BBLS SLICKWATER PAD, 400 BBLS OF SILVERSTIM 22# PAD, 2318 BBLS OF SILVERSTIM 22# FLUID SYSTEM, 238740 LBS OF
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
No Initial Test Data was found for formation NBRR.
Perforation Data:
Interval Top:7034 ft.# Of Holes:28
Interval Bottom:7166 ft.Hole Size:0.42 in.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY04/03/2023
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveYNoticed Date
12/08/2022
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