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 Surface Location
 API# 05-013-06274		Well Classification: GW Status: SI - 12/1/2025
Well Name/No:MARY MILLER #4-35
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:EXTRACTION OIL & GAS INC - 10459
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:
Facility Status:SIStatus Date12/1/2025
FacilityID:206779LocationID:321364
County:BOULDER #013Location:SENE 35 1N69W 6
Field:WATTENBERG - #90750Elevation:5173 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1980FNL  660 FELLat/Long: 40.009418 / -105.076828Lat/Long Source: Calculated From Footages
As Drilled Location:Footages Not AvailableLat/Long: 40.009430 / -105.076850Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: GW             Status: SI - 12/1/2025             Measured TD: 8630 ft.

 Wellbore Data for Original WellboreWellbore Classification: GW        SI - 12/1/2025
Wellbore Permit
Permit #:20000317 Expiration Date:4/6/2001
Proposed Depth/Form:8700 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number: 
Formation And Spacing:Code: JSND , Formation: J SAND , Order: , Unit Acreage: , Drill Unit: E/2
Formation And Spacing:Code: NB-CD , Formation: NIOBRARA-CODELL , Order: 407 , Unit Acreage: 160, Drill Unit: NE4
Wellbore Completed
Completion Date:9/16/1992
Spud Date:9/2/1992Spud Date Is:ACTUAL
Measured TD:8630 ft.Measured PB depth:8624 ft.
True Vertical TD:True Vertical PB depth:
Log Types:GR,CBL,CDL(NEW DRILL) CBL& GR (DEEPENING)
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: , Depth: 718 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 550, Top: 0 ft., Bottom: 718 ft., Determination Method:
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 4.5 in., Top: 0 ft., Depth: 8214 ft., Weight: 11.6 , Citings Type: ACTUAL
Cement:Sacks: 180, Top: 6834 ft., Bottom: 8624 ft., Determination Method: CBL
Casing:String Type: 1ST LINER, Hole Size: 3.875 in., Size: 2.875 in., Top: 0 ft., Depth: 8624 ft., Weight: 6.5 , Citings Type: ACTUAL
Cement:Sacks: 26, Top: 7676 ft., Bottom: 8624 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA7642 ft.NN
CODELL8082 ft.NN
J SAND8526 ft.NN

Formation JSND                     Formation Classification:  GW                     Status:  SI - 12/1/2025                 Interval Top: 8514 ft.    Interval Bottom: 8548 ft.

 Completed Information for Formation J SAND
1st Production Date:5/31/2000Choke Size:0.313 in.
Formation Name:J SANDCommingled:No
Production Method:FLOWING
Open Hole Completion:No
Formation Treatment
Treatment Date:9/16/1992
Treatment Summary:177324 GAL & 426520# 20/40 ON 5/22/00
Tubing Size:1.5 in.Tubing Setting Depth:8481 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:6/23/2000Test Method:FLOWING
Hours Tested:24Gas Type:
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 1
BBLS_OIL 1
CALC_BBLS_H2O 10
CALC_BBLS_OIL 1
CALC_GOR 170000
CALC_MCF_GAS 170
CASING_PRESS 400
MCF_GAS 170
TUBING_PRESS 200
Perforation Data:
Interval Top:8514 ft.# Of Holes:68
Interval Bottom:8548 ft.Hole Size:0.24 in.

Formation NB-CD                   Formation Classification:  GW                   Status:  SI - 12/1/2025                 Interval Top: 7670 ft.    Interval Bottom: 8095 ft.

 Completed Information for Formation NIOBRARA-CODELL
1st Production Date:10/18/1992Choke Size: 
Formation Name:NIOBRARA-CODELLCommingled:No
Production Method:FLOWING
Open Hole Completion:No
Formation Treatment
Treatment Date:9/16/1992
Treatment Summary:139860 GAL IN 24500# 100 MESH & 407000# 20/40
Tubing Size:Tubing Setting Depth:
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:10/18/1992Test Method:FLOWING
Hours Tested:24Gas Type:SHALE
Gas Disposal:SOLD
Test TypeMeasure
BBLS_H2O 20
BBLS_OIL 50
CALC_BBLS_H2O 20
CALC_BBLS_OIL 50
CALC_GOR 4400
CALC_MCF_GAS 220
CASING_PRESS 1160
MCF_GAS 220
Perforation Data:
Interval Top:7670 ft.# Of Holes:13
Interval Bottom:8095 ft.Hole Size:
Primary Well Designation:
Low Producing      i
            All DesignationsDate
Reported PluggedN 
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingYProduction Period
01/2025 - 12/2025

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
January 2025 - December 2025i
Total Oil Produced (Barrels)0
Total Gas Produced (MCF)34
GOR
GOR DeterminationMCFE
Average BOE per Day0.014
Average MCFE per Day0.093

 Federal Financial Assurance  i 

 Tribal Well  i No