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 Surface Location
 API# 05-123-15093
Well Classification: GW Status: PA - 11/24/2025
Well Name/No:EISENACH & PRESTON #8-8K
(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:PAStatus Date11/24/2025
FacilityID:247296LocationID:327738
County:WELD #123Location:SENE 8 3N66W 6
Field:WATTENBERG - #90750Elevation:4828 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1980FNL  660 FELLat/Long: 40.241076 / -104.794181Lat/Long Source: Calculated From Footages
As Drilled Location:Footages Not AvailableLat/Long: 40.241288 / -104.794165Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: AB - 11/24/2025             Measured TD: 7925 ft.    Vertical TD: 7925 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        AB - 11/24/2025
Wellbore Permit
Permit #:20040243 Expiration Date:2/23/2005
Proposed Depth/Form:7950 ft.
Surface Mineral Owner Same:Yes
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: JSND , Formation: J SAND , Order: 232 , Unit Acreage: 320, Drill Unit: E2
Formation And Spacing:Code: NB-CD , Formation: NIOBRARA-CODELL , Order: 407 , Unit Acreage: 80, Drill Unit: E2NE

Wellbore Completed
Completion Date:6/17/2004
Spud Date:8/5/1991Spud Date Is:ACTUAL
Measured TD:7925 ft.Measured PB depth:7893 ft.
True Vertical TD:7925 ft.True Vertical PB depth:7893 ft.
Top PZ Location:Sec: Twp: Footage: 0 FL  0 FL
Log Types:DIL, FDC, CBL
Log Types:CD, GR, CBL
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 509 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 350, Top: 0 ft., Bottom: 509 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 7459 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: 200, Top: 6483 ft., Bottom: 7459 ft., Determination Method: CBL
Casing:String Type: 1ST LINER, Hole Size: 3.875 in., Size: 2.875 in., Top: 7414 ft., Depth: 7894 ft., Weight: 6.5 , Citings Type: ACTUAL
Cement:Sacks: 40, Top: 7431 ft., Bottom: 7894 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
SUSSEX4260 ft.NN
NIOBRARA7016 ft.NN
FORT HAYS7315 ft.NN
CODELL7336 ft.NN
J SAND7783 ft.NN

Formation JSND                     Formation Classification:  GW                     Status:  AB - 11/24/2025                Interval Top: 7784 ft.    Interval Bottom: 7860 ft.

 Completed Information for Formation J SAND
1st Production Date:8/15/2004Choke Size: 
Formation Name:J SANDCommingled:
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:6/17/2004
Treatment Summary:154,026 GAL FLUID; 4,000# 12/20 SAND; 115,940# 30/50 SAND.
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 JSND.
Perforation Data:
Interval Top:7784 ft.# Of Holes:132
Interval Bottom:7860 ft.Hole Size:0.21 in.

Formation JNBCD                   Formation Classification:  GW                   Status:  CM - 7/15/2025                 Interval Top: 7055 ft.    Interval Bottom: 7860 ft.

 Completed Information for Formation J-NIOBRARA-CODELL
1st Production Date:8/15/2004Choke Size: 
Formation Name:J-NIOBRARA-CODELLCommingled:
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:6/17/2004
Treatment Summary:COMMINGLED
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 0
BBLS_OIL 1
CALC_BBLS_H2O 0
CALC_BBLS_OIL 1
CALC_GOR 112000
CALC_MCF_GAS 112
CASING_PRESS 319
GRAVITY_OIL 59.6
MCF_GAS 112
TUBING_PRESS 207
Perforation Data:
Interval Top:7055 ft.# Of Holes:218
Interval Bottom:7860 ft.Hole Size:

Formation NB-CD                   Formation Classification:  GW                   Status:  AB - 11/24/2025                Interval Top: 7055 ft.    Interval Bottom: 7354 ft.

 Completed Information for Formation NIOBRARA-CODELL
1st Production Date:8/28/1991Choke Size: 
Formation Name:NIOBRARA-CODELLCommingled:
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:6/17/2004
Treatment Summary:7338-7354' ACIDIZE W/500 GAL 7.5% HCI; FRAC W/83,000 GAL 2% KCI WTR W/40# GUAR, W/10,000# 100 MESH SAND& 258,120# 20/40 MESH SAND. 7055-7200' ACIDIZE W/1000 GAL 7.5% HCI; FRAC W/71,040 GAL 2% KCI WTR W/40# GUAR W/10,000# 100 MESH SAND & 162,000# 20/40 MESH SAND.
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 40
BBLS_OIL 78
CALC_BBLS_H2O 71
CALC_BBLS_OIL 139
CALC_GOR 8667
CALC_MCF_GAS 1202
CASING_PRESS 540
MCF_GAS 676
TUBING_PRESS 280
Perforation Data:
Interval Top:7055 ft.# Of Holes:86
Interval Bottom:7354 ft.Hole Size:
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY11/24/2025
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)139
Total Gas Produced (MCF)7170
GOR51582
GOR DeterminationMCFE
Average BOE per Day3.792
Average MCFE per Day21.981

 Federal Financial Assurance  i 

 Tribal Well  i No