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 Surface Location
 API# 05-073-06560
Well Classification: OW Status: PR - 10/1/2025
Well Name/No:BIG SKY #13-11
(Click Well Name for Production Data)
Click Here for Transporter Gatherer Info
Operator:POLARIS PRODUCTION OPCO LLC - 10793
(Click Operator Name for Company Detail Report)
Federal Or State Lease #:
Facility Status:PRStatus Date10/1/2025
FacilityID:434843LocationID:434840
County:LINCOLN #073Location:SWSW 11 6S54W 6
Field:ARIKAREE CREEK - #2914Elevation:5220 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:774FSL  657 FWLLat/Long: 39.537930 / -103.414470Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 39.537930 / -103.414470Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 10/1/2025             Measured TD: 8290 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 10/1/2025
Wellbore Permit
Permit #: Expiration Date:10/22/2015
Proposed Depth/Form:8700 ft.
Surface Mineral Owner Same:No
Mineral Owner:FEESurface Owner:FEE
Unit: Unit Number:
Formation And Spacing:Code: ABCK , Formation: ARBUCKLE , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: ATOK , Formation: ATOKA , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: CHRK , Formation: CHEROKEE , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: KDRK , Formation: KINDERHOOK , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: LGKC , Formation: LANSING-KANSAS CITY , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: MRTN , Formation: MARMATON , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: MS-SP , Formation: MISSISSIPPIAN-SPERGEN , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: STLS , Formation: ST LOUIS , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: WFCMP , Formation: WOLFCAMP , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: WRSW , Formation: WARSAW , Order: , Unit Acreage: , Drill Unit:
Casing:String Type: SURF, Hole Size: 11 in., Size: 8.625 in., Top: 0 ft., Depth: 300 ft., Weight: 24 , Citings Type: PLANNED
Cement:Sacks: 69, Top: 0 ft., Bottom: 300 ft.
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 8700 ft., Weight: 17 , Citings Type: PLANNED
Cement:Sacks: 1039, Top: 0 ft., Bottom: 8700 ft.

Wellbore Completed
Completion Date:1/25/2014
Spud Date:12/17/2013Spud Date Is:ACTUAL
Measured TD:8290 ft.Measured PB depth:8154 ft.
True Vertical TD:True Vertical PB depth:
Log Types:
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 338 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 130, Top: 0 ft., Bottom: 338 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 8271 ft., Weight: 17 , Citings Type: ACTUAL
Cement:Sacks: 1252, Top: 442 ft., Bottom: 8271 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA3651 ft.
DAKOTA4599 ft.
STONE CORRAL5979 ft.
WOLFCAMP6190 ft.
LANSING-KANSAS CITY6894 ft.
MARMATON7230 ft.
CHEROKEE7412 ft.
ATOKA7619 ft.
MORROW7853 ft.
SPERGEN8063 ft.
GRANITE8288 ft.

Formation SPGN                     Formation Classification:  OW                     Status:  PR - 10/1/2025                 Interval Top: 8103 ft.    Interval Bottom: 8124 ft.

 Completed Information for Formation SPERGEN
1st Production Date:2/17/2014Choke Size: 
Formation Name:SPERGENCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:4/28/2015Treatment End Date:4/30/2015
Treatment Summary:Re-perfed 8,103' - 8,124' 126 addtl holes Acidized with 210 bbls of 2% KCL with acetone and ethanol and displaced with 65 bbls of 2% KCL
Total fluid used in treatment (bbls):275Max pressure during treatment (psi):1430
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):210Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):275
Fresh water used in treatment (bbls):65Disposition method For flowback:DISPOSAL
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: PIPELINE
Formation Treatment
Treatment Type:ACID JOB
Treatment Date:1/31/2014Treatment End Date:2/4/2014
Treatment Summary:Acidize with 50 bbls of 7 1/5% Acetic Acid. Total fluids used was 110 bbls
Total fluid used in treatment (bbls):110Max pressure during treatment (psi):800
Total gas used in treatment (mcf):0Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):50Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):
Fresh water used in treatment (bbls):60Disposition method For flowback:DISPOSAL
Total proppant used (lbs):0Green completions techniques utilized:--
Reason green techniques Not utilized: PIPELINE
Tubing Size:2.875 in.Tubing Setting Depth:8137 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:5/8/2015Test Method:pumping
Hours Tested:24Gas Type:DRY
Gas Disposal:FLARED
Test TypeMeasure
BBLS_H2O 291
BBLS_OIL 55
BTU_GAS 996
CALC_BBLS_H2O 291
CALC_BBLS_OIL 55
CALC_GOR 291
CALC_MCF_GAS 16
CASING_PRESS 50
GRAVITY_OIL 36
MCF_GAS 16
TUBING_PRESS 60
Perforation Data:
Interval Top:8103 ft.# Of Holes:210
Interval Bottom:8124 ft.Hole Size:0.45 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)2209
Total Gas Produced (MCF)314
GOR142
GOR DeterminationBOE
Average BOE per Day6.175
Average MCFE per Day35.821

 Federal Financial Assurance  i 

 Tribal Well  i No