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 Surface Location
 API# 05-123-40923
Well Classification: ERIW Status: SI - 9/1/2025
Well Name/No:GRISWOLD #26N-11HZ
(Click Well Name for Production Data)
Click Here for Transporter Gatherer Info
Operator:KERR MCGEE OIL & GAS ONSHORE LP - 47120
(Click Operator Name for Company Detail Report)
Federal Or State Lease #:
Facility Status:SIStatus Date9/1/2025
FacilityID:440567LocationID:440557
County:WELD #123Location:SWSE 11 1N66W 6
Field:WATTENBERG - #90750Elevation:5126 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:560FSL  1953 FELLat/Long: 40.060073 / -104.741875Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.060073 / -104.741875Lat/Long Source: Field Measured
 
FracFocus
Disclosure: Sidetrack #00
Start Date: 5/12/2015
End Date: 5/23/2015
Reported: 7/20/2015
Days to report: 58
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: SI - 9/1/2025             Measured TD: 12302 ft.    Vertical TD: 7404 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        SI - 9/1/2025
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:1/23/2027
Proposed Top PZ Location:Sec:11 Twp: 1N 66W Footage: 971 FSL  56 FEL
Bottom Hole Location:Sec:11 Twp: 1N 66W Footage: 100 FNL  62 FEL
Proposed Depth/Form:12302 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: NBRR , Formation: NIOBRARA , Order: 407-3561 , Unit Acreage: 920, Drill Unit: T1N R66W: 01: SWSW;
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 80 ft., Weight: 42.1 , Citings Type: PLANNED
Cement:Sacks: 64, Top: 0 ft., Bottom: 80 ft.
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 1745 ft., Weight: 36 , Citings Type: PLANNED
Cement:Sacks: 675, Top: 0 ft., Bottom: 1745 ft.
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 12289 ft., Weight: 17 , Citings Type: PLANNED
Cement:Sacks: 1830, Top: 1405 ft., Bottom: 12289 ft.

Wellbore Completed
Completion Date:2/16/2015
Spud Date:2/4/2015Spud Date Is:ACTUAL
Measured TD:12302 ft.Measured PB depth:12239 ft.
True Vertical TD:7404 ft.True Vertical PB depth:7401 ft.
Top PZ Location:Sec:11 Twp: 1N 66WFootage: 971 FSL  56 FEL
Bottom Hole Location:Sec:11 Twp: 1N 66WFootage: 100 FNL  62 FEL
Log Types:CBL, LWD, (CNL in 123-40930)
Log Types:CBL, LWD, Per Rule 317.p Exception, Cased hole neutron log was run on the well Griswold 2C-11HZ API# 12340930.
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 40 ft., Weight: 42.1 , Citings Type: ACTUAL
Cement:Sacks: 32, Top: 0 ft., Bottom: 40 ft., Determination Method: VISU
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 1745 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 675, Top: 0 ft., Bottom: 1745 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 12289 ft., Weight: 17 , Citings Type: ACTUAL
Cement:Sacks: 1830, Top: 1405 ft., Bottom: 12289 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
SUSSEX4980 ft.
SHARON SPRINGS7603 ft.
NIOBRARA7643 ft.

Formation NBRR                     Formation Classification:  OW                     Status:  SI - 9/1/2025                  Interval Top: 8087 ft.    Interval Bottom: 12230 ft.

 Completed Information for Formation NIOBRARA
1st Production Date:6/5/2015Choke Size: 
Formation Name:NIOBRARACommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:5/12/2015Treatment End Date:5/23/2015
Treatment Summary:PERF AND FRAC FROM 8087-12,230. 762 BBL ACID, 28,583 BBL CROSSLINK GEL, 10,782 BBL LINEAR GEL, 53,393 BBL SLICKWATER, 4,009 BBL WATER,- -97,528 BBL TOTAL FLUID 103,527# 100 MESH OTTAWA/ST. PETERS, 2,344,924# 30/50 OTTAWA/ST. PETERS, 171,642# 40/70 GENOA/SAND HILLS, - 2,620,093# TOTAL SAND.
Total fluid used in treatment (bbls):97528Max pressure during treatment (psi):8104
Total gas used in treatment (mcf):0Fluid density (lbs/gal):8.30
Type Of gas:Number Of staged intervals:21
Total acid used in treatment (bbls):762Min frac gradient (psi/ft):0.86
Recycled water used in treatment (bbls):0Total flowback volume recovered (bbls):5352
Fresh water used in treatment (bbls):96766Disposition method For flowback:DISPOSAL
Total proppant used (lbs):2620093Green completions techniques utilized:Yes
Reason green techniques Not utilized: 
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:6/8/2015Test Method:FLOWING
Hours Tested:24Gas Type:WET
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 7
BBLS_OIL 101
BTU_GAS 1344
CALC_BBLS_H2O 7
CALC_BBLS_OIL 101
CALC_GOR 1535
CALC_MCF_GAS 155
CASING_PRESS 1550
GRAVITY_OIL 48
MCF_GAS 155
Perforation Data:
Interval Top:8087 ft.# Of Holes:552
Interval Bottom:12230 ft.Hole Size:0.37 in.
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
February 2025 - January 2026i
Total Oil Produced (Barrels)23
Total Gas Produced (MCF)90
GOR3913
GOR DeterminationBOE
Average BOE per Day0.105
Average MCFE per Day0.599

 Federal Financial Assurance  i 

 Tribal Well  i No