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 Surface Location
 API# 05-081-05645		Well Classification: OW Status: PA - 6/15/2025
Well Name/No:MAUDLIN GULCH UNIT #4
(Click Well Name for Production Data)		Click Here for Transporter Gatherer Info
Operator:WESCO OPERATING INC - 95520
(Click Operator Name for Company Detail Report)		Federal Or State Lease #:37886
Facility Status:PAStatus Date6/15/2025
FacilityID:222575LocationID:312846
County:MOFFAT #081Location:SWNE 27 4N95W 6
Field:MAUDLIN GULCH - #52950Elevation:7872 ft.
Basin:PICEANCE BASIN  
Planned Location:1950FNL  2530 FELLat/Long: 40.288888 / -108.037312Lat/Long Source: Calculated From Footages
As Drilled Location:Footages Not AvailableLat/Long: 40.289100 / -108.037210Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: AB - 6/15/2025             Measured TD: 6250 ft.    Vertical TD: 0 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        AB - 6/15/2025
Wellbore Permit
Permit #:660000 Expiration Date:1/1/1901
Proposed Depth/Form:
Surface Mineral Owner Same:Not available
Mineral Owner:FEDERALSurface Owner:FEDERAL
Unit: Unit Number:D-052312
Formation And Spacing:Code: DKTA , Formation: DAKOTA , Order: 0 , Unit Acreage: 0, Drill Unit:
Wellbore Completed
Completion Date:11/12/1966
Spud Date:10/22/1966Spud Date Is:ACTUAL
Measured TD:6250 ft.Measured PB depth:6250 ft.
True Vertical TD:0 ft.True Vertical PB depth:
Casing:String Type: SURF, Hole Size: 17.25 in., Size: 13.375 in., Top: , Depth: 357 ft., Weight: 48 , Citings Type: ACTUAL
Cement:Sacks: 325, Top: , Bottom: 357 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: , Size: , Top: , Depth: 6840 ft., Weight: 23 , Citings Type: ACTUAL
Cement:Sacks: 300, Top: 5300 ft., Bottom: 6840 ft., Determination Method: CBL
Casing:String Type: 1ST LINER, Hole Size: 6.359 in., Size: 5.5 in., Top: , Depth: 5983 ft., Weight: 17 , Citings Type: ACTUAL
Cement:Sacks: 310, Top: 120 ft., Bottom: 5983 ft., Determination Method: CALC
FormationInterval TopLog BottomCoredDSTs
FRONTIER5788 ft.
DAKOTA6144 ft.
MORRISON6232 ft.

Formation SNDC                     Formation Classification:  OW                     Status:  AB - 11/12/1966                Interval Top: 6791 ft.    Interval Bottom: 6811 ft.

 Completed Information for Formation SUNDANCE
1st Production Date:11/13/1949Choke Size: 
Formation Name:SUNDANCECommingled:No
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:9/21/1958
Treatment Summary:Acidized with 300 gallons of MCA and displaced with 39 bbls of lease crude.
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 SNDC.
Perforation Data:
Interval Top:6791 ft.# Of Holes:95
Interval Bottom:6811 ft.Hole Size:

Formation MRSN                     Formation Classification:  OW                     Status:  AB - 11/12/1966                Interval Top: 6602 ft.    Interval Bottom: 6608 ft.

 Completed Information for Formation MORRISON
1st Production Date:1/17/1959Choke Size: 
Formation Name:MORRISONCommingled:No
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Date:1/16/1959
Treatment Summary:Frac with 5000 gallons of lease crude and 5000# of 20/40 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 MRSN.
Perforation Data:
Interval Top:6602 ft.# Of Holes:24
Interval Bottom:6608 ft.Hole Size:

Formation DKTA                     Formation Classification:  OW                     Status:  AB - 6/15/2025                 Interval Top: 6144 ft.    Interval Bottom: 6608 ft.

 Completed Information for Formation DAKOTA
1st Production Date:11/13/1966Choke Size:0.000 in.
Formation Name:DAKOTACommingled:
Production Method:
Open Hole Completion:
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 DKTA.
No Perforation Data was found for formation DKTA.
Primary Well Designation:
None      i
            All DesignationsDate
Reported PluggedY06/15/2025
Out Of Service RepurposedN 
Out Of ServiceN 
Inactive ExceptionN 
Noticed InactiveN 
Defined InactiveN 
Low ProducingN 

BOE/MCFE/GOR Calculations
Production for Previous 12 Months
January 2025 - December 2025i
Total Oil Produced (Barrels)0
Total Gas Produced (MCF)0
GOR
GOR Determination 
Average BOE per Day0.000
Average MCFE per Day0.000

 Federal Financial Assurance  i 

 Tribal Well  i No