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 Surface Location
 API# 05-123-39758
Well Classification: OW Status: SI - 12/1/2025
Well Name/No:Nalen State #LD12-76-1AHN
(Click Well Name for Production Data)
Click Here for Transporter Gatherer Info
Operator:NOBLE ENERGY INC - 100322
(Click Operator Name for Company Detail Report)
Federal Or State Lease #:
Facility Status:SIStatus Date12/1/2025
FacilityID:437895LocationID:437902
County:WELD #123Location:SESW 1 9N58W 6
Field:DJ HORIZONTAL NIOBRARA - #16950Elevation:4671 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:250FSL  1450 FWLLat/Long: 40.773980 / -103.816400Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.773980 / -103.816410Lat/Long Source: Field Measured
 
FracFocus
Disclosure: Sidetrack #00
Start Date: 2/27/2015
End Date: 3/5/2015
Reported: 3/30/2015
Days to report: 25
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: SI - 12/1/2025             Measured TD: 10388 ft.    Vertical TD: 5462 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        SI - 12/1/2025
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:6/29/2016
Proposed Top PZ Location:Sec:1 Twp: 9N 58W Footage: 401 FNL  2201 FWL
Bottom Hole Location:Sec:12 Twp: 9N 58W Footage: 330 FSL  2200 FWL
Proposed Depth/Form:10447 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: NB-CD , Formation: NIOBRARA-CODELL , Order: 535-451 , Unit Acreage: 3200, Drill Unit: S.1,2,11,12;S.36:All
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 100 ft., Weight: , Citings Type: PLANNED
Cement:Sacks: 6, Top: 0 ft., Bottom: 100 ft.
Casing:String Type: SURF, Hole Size: 13.75 in., Size: 9.625 in., Top: 0 ft., Depth: 1150 ft., Weight: 36 , Citings Type: PLANNED
Cement:Sacks: 520, Top: 0 ft., Bottom: 1150 ft.
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: 7 in., Top: 0 ft., Depth: 5943 ft., Weight: 26 , Citings Type: PLANNED
Cement:Sacks: 410, Top: , Bottom: 5943 ft.
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 5793 ft., Depth: 10447 ft., Weight: 11.6 , Citings Type: PLANNED
Cement:Sacks: , Top: , Bottom:

Wellbore Completed
Completion Date:12/20/2014
Spud Date:12/16/2014Spud Date Is:ACTUAL
Measured TD:10388 ft.Measured PB depth:10371 ft.
True Vertical TD:5462 ft.True Vertical PB depth:5462 ft.
Top PZ Location:Sec:12 Twp: 9N 58WFootage: 374 FNL  2082 FWL
Bottom Hole Location:Sec:12 Twp: 9N 58WFootage: 334 FSL  2217 FWL
Log Types:CBL/Mud/Gamma, (DIL in API 123-39766)
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 124 ft., Weight: 42.05 , Citings Type: ACTUAL
Cement:Sacks: 80, Top: 0 ft., Bottom: 124 ft., Determination Method: VISU
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 1203 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 500, Top: 0 ft., Bottom: 1203 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 8.75 in., Size: 7 in., Top: 0 ft., Depth: 5845 ft., Weight: 26 , Citings Type: ACTUAL
Cement:Sacks: 422, Top: 1185 ft., Bottom: 5845 ft., Determination Method: CBL
Casing:String Type: 1ST LINER, Hole Size: 6.125 in., Size: 4.5 in., Top: 5736 ft., Depth: 10373 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: , Top: , Bottom: , Determination Method:
FormationInterval TopLog BottomCoredDSTs
PIERRE2268 ft.
PARKMAN3151 ft.
SUSSEX3747 ft.
SHANNON4186 ft.
NIOBRARA5716 ft.

Formation NBRR                     Formation Classification:  OW                     Status:  SI - 12/1/2025                 Interval Top: 5976 ft.    Interval Bottom: 10202 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:3/27/2015Choke Size: 
Formation Name:NIOBRARACommingled:No
Production Method:
Open Hole Completion:Yes
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:2/27/2015Treatment End Date:3/5/2015
Treatment Summary:Frac'd the Niobrara w/ 8354523 gals of Silverstim and Slick Water with 3047150#'s of Ottawa sand.
Total fluid used in treatment (bbls):198917Max pressure during treatment (psi):5795
Total gas used in treatment (mcf):0Fluid density (lbs/gal):8.43
Type Of gas:Number Of staged intervals:23
Total acid used in treatment (bbls):0Min frac gradient (psi/ft):0.76
Recycled water used in treatment (bbls):0Total flowback volume recovered (bbls):224
Fresh water used in treatment (bbls):198917Disposition method For flowback:RECYCLE
Total proppant used (lbs):3047150Green completions techniques utilized:Yes
Reason green techniques Not utilized: 
Tubing Size:2.375 in.Tubing Setting Depth:5744 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:4/3/2015Test Method:FLOWING
Hours Tested:24Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 405
BBLS_OIL 353
BTU_GAS 2768
CALC_BBLS_H2O 405
CALC_BBLS_OIL 353
CALC_GOR 229
CALC_MCF_GAS 81
CASING_PRESS 33
GRAVITY_OIL 38
MCF_GAS 81
TUBING_PRESS 383
Perforation Data:
Interval Top:5976 ft.# Of Holes:0
Interval Bottom:10202 ft.Hole Size:
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceN 
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)665
Total Gas Produced (MCF)1648
GOR2478
GOR DeterminationBOE
Average BOE per Day2.589
Average MCFE per Day15.023

 Federal Financial Assurance  i 

 Tribal Well  i No