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 Surface Location
 API# 05-123-21183
Well Classification: OW Status: PA - 6/16/2025
Well Name/No:NHF #31-21
(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 Date6/16/2025
FacilityID:265149LocationID:331722
County:WELD #123Location:NWNE 21 5N63W 6
Field:WATTENBERG - #90750Elevation:4620 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:657FNL  2033 FELLat/Long: 40.390386 / -104.439281Lat/Long Source: Calculated From Footages
As Drilled Location:Footages Not AvailableLat/Long: 40.389940 / -104.438780Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: AB - 6/16/2025             Measured TD: 7265 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        AB - 6/16/2025
Wellbore PermitDRIFTED
Permit #:20021931 Expiration Date:11/4/2003
Proposed Depth/Form:7750 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: DKJNC , Formation: DAKOTA-J-NIOBRARA-CODELL , Order: 318A , Unit Acreage: 320, Drill Unit: E/2

Wellbore Completed
Completion Date:N/A
Spud Date:9/2/2003Spud Date Is:ACTUAL
Measured TD:7265 ft.Measured PB depth:7239 ft.
True Vertical TD:True Vertical PB depth:
Log Types:GR, IND, DENSITY, NEUTRON, CBL
Log Types:CBL
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 412 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 210, Top: 0 ft., Bottom: 412 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 7239 ft., Weight: 10.5 , Citings Type: ACTUAL
Cement:Sacks: 510, Top: 2768 ft., Bottom: 7239 ft., Determination Method: CBL
Casing:String Type: S.C. 1.1, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 2768 ft., Weight: 10.5 , Citings Type: ACTUAL
Cement:Sacks: 355, Top: 220 ft., Bottom: 2768 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
GREELEY SAND2008 ft.NN
PARKMAN3465 ft.NN
SUSSEX3932 ft.NN
SHANNON4339 ft.NN
NIOBRARA6320 ft.NN
FORT HAYS6536 ft.NN
CODELL6583 ft.NN
CARLILE6598 ft.NN
GREENHORN6634 ft.NN
J SAND7034 ft.NN

Formation JSND                     Formation Classification:  OW                     Status:  AB - 11/5/2003                 Interval Top: 7078 ft.    Interval Bottom: 7088 ft.

 Completed Information for Formation J SAND
1st Production Date:N/AChoke Size:0.188 in.
Formation Name:J SANDCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Date:3/27/2003
Treatment Summary:3/27/03 BJ SERVICES FRACED WITH 1704 BBL OF 20# VISTAR GEL, 142,360# OF 20/40 MESH SAND AND 8000# OF 20/40 RESIN COATED SAND.
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:3/28/2003Test Method:FLOWING
Hours Tested:24Gas Type:DRY
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 44
BBLS_OIL 1
BTU_GAS 1055
CALC_GOR 50000
CASING_PRESS 850
GRAVITY_OIL 50
MCF_GAS 50
TUBING_PRESS 150
Perforation Data:
Interval Top:7078 ft.# Of Holes:24
Interval Bottom:7088 ft.Hole Size:

Formation CODL                     Formation Classification:  OW                     Status:  CM - 10/1/2012                 Interval Top: 6586 ft.    Interval Bottom: 6594 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:3/10/2012
Treatment Summary:Re-Perf Codell, Frac'd Codell w/ 119 bbl FE-1A pad, 500 bbls 26# pHaser pad, 1887 bbls 26# pHaser fluid system, 219580# 20/40 Preferd Rock, 8000# 20/40 SB Excel.
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:6586 ft.# Of Holes:24
Interval Bottom:6594 ft.Hole Size:0.40625 in.

Formation NB-CD                   Formation Classification:  OW                   Status:  AB - 6/16/2025                 Interval Top: 6413 ft.    Interval Bottom: 6594 ft.

 Completed Information for Formation NIOBRARA-CODELL
1st Production Date:3/20/2012Choke Size: 
Formation Name:NIOBRARA-CODELLCommingled:
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:3/27/2003
Treatment Summary:11/7/03 BJ SERVICES FRACED WITH 3582 BBL OF 20# VISTAR FLUID SYSTEM, 334,120# OF 20/40 MESH SAND AND 16,000# OF 20/40 RESIN COATED SAND. NIOBRARA PERFS 6413'-6419'. CODELL PERFS 6588'-6594'.
Tubing Size:2.375 in.Tubing Setting Depth:6572 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:5/31/2012Test Method:Flowing
Hours Tested:24Gas Type:SHALE
Gas Disposal:SOLD
Test TypeMeasure
BBLS_OIL 8
BTU_GAS 1269
CALC_BBLS_OIL 8
CALC_GOR 2735
CALC_MCF_GAS 21
CASING_PRESS 859
GRAVITY_OIL 47
MCF_GAS 21
TUBING_PRESS 583
Perforation Data:
Interval Top:6413 ft.# Of Holes:60
Interval Bottom:6594 ft.Hole Size:
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY06/16/2025
Out Of Service RepurposedN 
Out Of ServiceYPlugging Due Date
12/31/2029
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingN 

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
December 2024 - November 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