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 Surface Location
 API# 05-123-40906
Well Classification: ERIW Status: PR - 7/1/2025
Well Name/No:GRISWOLD #26C-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:PRStatus Date7/1/2025
FacilityID:440547LocationID:440557
County:WELD #123Location:SWSE 11 1N66W 6
Field:WATTENBERG - #90750Elevation:5126 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:560FSL  1968 FELLat/Long: 40.060074 / -104.741924Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 40.060074 / -104.741924Lat/Long Source: Field Measured
 
FracFocus
Disclosure: Sidetrack #00
Start Date: 5/11/2015
End Date: 5/22/2015
Reported: 7/20/2015
Days to report: 59
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 7/10/2025             Measured TD: 12950 ft.    Vertical TD: 7561 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 7/10/2025
Wellbore PermitHORIZONTAL
Permit #: Expiration Date:1/23/2027
Proposed Top PZ Location:Sec:11 Twp: 1N 66W Footage: 453 FSL  548 FEL
Bottom Hole Location:Sec:11 Twp: 1N 66W Footage: 110 FNL  632 FEL
Proposed Depth/Form:12950 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: CARL , Formation: CARLILE , Order: , Unit Acreage: 240, Drill Unit: GWA
Formation And Spacing:Code: CODL , Formation: CODELL , Order: 407-3561 , Unit Acreage: 920, Drill Unit: T1N R66W: 01: SWSW;
Formation And Spacing:Code: FTHYS , Formation: FORT HAYS , Order: , Unit Acreage: 240, Drill Unit: GWA
Formation And Spacing:Code: NBRR , Formation: NIOBRARA , Order: , Unit Acreage: 240, Drill Unit: GWA
Formation And Spacing:Code: NFCC , Formation: NIOBRARA-FORT HAYS-CODELL-CARLILE , Order: , Unit Acreage: 240, Drill Unit: GWA
Casing:String Type: CONDUCTOR, Hole Size: 26 in., Size: 16 in., Top: 0 ft., Depth: 40 ft., Weight: 42.1 , Citings Type: PLANNED
Cement:Sacks: 32, Top: 0 ft., Bottom: 40 ft.
Casing:String Type: SURF, Hole Size: 13.5 in., Size: 9.625 in., Top: 0 ft., Depth: 1765 ft., Weight: 36 , Citings Type: PLANNED
Cement:Sacks: 710, Top: 0 ft., Bottom: 1765 ft.
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 12941 ft., Weight: 17 , Citings Type: PLANNED
Cement:Sacks: 1449, Top: 0 ft., Bottom: 12941 ft.

Wellbore Completed
Completion Date:2/24/2015
Spud Date:1/31/2015Spud Date Is:ACTUAL
Measured TD:12950 ft.Measured PB depth:12894 ft.
True Vertical TD:7561 ft.True Vertical PB depth:7563 ft.
Top PZ Location:Sec:11 Twp: 1N 66WFootage: 453 FSL  548 FEL
Bottom Hole Location:Sec:11 Twp: 1N 66WFootage: 110 FNL  632 FEL
Log Types:CBL, LWD, MUD, (CNL in 123-40930)
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: 1765 ft., Weight: 36 , Citings Type: ACTUAL
Cement:Sacks: 710, Top: 0 ft., Bottom: 1765 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5 in., Top: 0 ft., Depth: 12941 ft., Weight: 17 , Citings Type: ACTUAL
Cement:Sacks: 1449, Top: 0 ft., Bottom: 12941 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
SUSSEX4969 ft.
SHARON SPRINGS7386 ft.
NIOBRARA7418 ft.
FORT HAYS8062 ft.
CODELL8710 ft.
CARLILE11013 ft.

Formation NBRR                     Formation Classification:  OW                     Status:  CM - 11/8/2022                 Interval Top: 11895 ft.    Interval Bottom: 11945 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 Type:
Treatment Date:11/8/2022Treatment End Date:N/A
Treatment Summary:Niobrara perforated from 11,895'-11,945'.
Total fluid used in treatment (bbls):Max pressure during treatment (psi):
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):
Fresh water used in treatment (bbls):Disposition method For flowback:
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: 
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:11895 ft.# Of Holes:12
Interval Bottom:11945 ft.Hole Size:0.37 in.

Formation CARL                     Formation Classification:  OW                     Status:  CM - 11/8/2022                 Interval Top: 11054 ft.    Interval Bottom: 11352 ft.

 Completed Information for Formation CARLILE
1st Production Date:N/AChoke Size: 
Formation Name:CARLILECommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:
Treatment Date:11/8/2022Treatment End Date:N/A
Treatment Summary:Carlile perforated from 11,054'-11,352'.
Total fluid used in treatment (bbls):Max pressure during treatment (psi):
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):
Fresh water used in treatment (bbls):Disposition method For flowback:
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: 
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 CARL.
Perforation Data:
Interval Top:11054 ft.# Of Holes:42
Interval Bottom:11352 ft.Hole Size:0.37 in.

Formation CODL                     Formation Classification:  OW                     Status:  CM - 11/8/2022                 Interval Top: 8729 ft.    Interval Bottom: 12688 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 Type:
Treatment Date:11/8/2022Treatment End Date:N/A
Treatment Summary:Codell perforated from 8,729'-11,005'; 11,400'-11,846' and 12,587'-12,688'.
Total fluid used in treatment (bbls):Max pressure during treatment (psi):
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):
Fresh water used in treatment (bbls):Disposition method For flowback:
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: 
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:8729 ft.# Of Holes:386
Interval Bottom:12688 ft.Hole Size:37 in.

Formation FTHYS                   Formation Classification:  OW                   Status:  CM - 11/8/2022                 Interval Top: 8185 ft.    Interval Bottom: 12885 ft.

 Completed Information for Formation FORT HAYS
1st Production Date:N/AChoke Size: 
Formation Name:FORT HAYSCommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:
Treatment Date:11/8/2022Treatment End Date:N/A
Treatment Summary:FT Hays perforated from 8,185'-8,680'; 11,994'-12,341'; 12,375'-12,573' and 12,736'-12,885'.
Total fluid used in treatment (bbls):Max pressure during treatment (psi):
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):
Fresh water used in treatment (bbls):Disposition method For flowback:
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: 
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 FTHYS.
Perforation Data:
Interval Top:8185 ft.# Of Holes:124
Interval Bottom:12885 ft.Hole Size:0.37 in.

Formation NFCC                     Formation Classification:  OW                     Status:  PR - 7/1/2025                  Interval Top: 8185 ft.    Interval Bottom: 12885 ft.

 Completed Information for Formation NIOBRARA-FORT HAYS-CODELL-CARLILE
1st Production Date:6/5/2015Choke Size: 
Formation Name:NIOBRARA-FORT HAYS-CODELL-CARLILECommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:5/11/2015Treatment End Date:5/22/2015
Treatment Summary:PERF AND FRAC FROM 8185-12,885. 83,288 BBL SLICKWATER, - 83,288 BBL TOTAL FLUID 2,619,711# 40/70 GENOA/SAND HILLS, - 2,619,711# TOTAL SAND ENTERED FT HAYS: 8185-8710; 11,993-12,373; 12,375-12,573; 12,689-12,885 CODELL: 8710-11,013 11,391-11,868; 12,373-12,375; 12,573-12,689 CARLILE: 11,013-11,391 NIOBRARA: 11,868-11,993 THIS IS A DESIGNATED SOURCE OF SUPPLY WELL; (SEE ATTACHMENT)
Total fluid used in treatment (bbls):83288Max pressure during treatment (psi):7445
Total gas used in treatment (mcf):0Fluid density (lbs/gal):8.30
Type Of gas:Number Of staged intervals:16
Total acid used in treatment (bbls):0Min frac gradient (psi/ft):0.83
Recycled water used in treatment (bbls):0Total flowback volume recovered (bbls):3526
Fresh water used in treatment (bbls):83288Disposition method For flowback:DISPOSAL
Total proppant used (lbs):2619711Green 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:N/ATest Method:
Hours Tested:Gas Type:
Gas Disposal:
Test TypeMeasure
BBLS_H2O 7
BBLS_OIL 90
BTU_GAS 1344
CALC_BBLS_H2O 7
CALC_BBLS_OIL 90
CALC_GOR 1611
CALC_MCF_GAS 145
CASING_PRESS 1800
GRAVITY_OIL 48
MCF_GAS 145
Perforation Data:
Interval Top:8185 ft.# Of Holes:564
Interval Bottom:12885 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
December 2024 - November 2025i
Total Oil Produced (Barrels)3186
Total Gas Produced (MCF)19948
GOR6261
GOR DeterminationBOE
Average BOE per Day18.043
Average MCFE per Day104.671

 Federal Financial Assurance  i 

 Tribal Well  i No