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 Surface Location
 API# 05-073-06556		Well Classification: OW Status: PR - 6/1/2025
Well Name/No:BIG SKY #12-11
(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 Date6/1/2025
FacilityID:434480LocationID:434481
County:LINCOLN #073Location:NWSW 11 6S54W 6
Field:ARIKAREE CREEK - #2914Elevation:5222 ft.
Planned Location:2096FSL  629 FWLLat/Long: 39.541560 / -103.414570Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 39.541560 / -103.414570Lat/Long Source: Field Measured
 Wellbore And Formation Details -- select either a wellbore Or formation to expand.
 

Wellbore #00             Wellbore Classification: OW             Status: PR - 6/1/2025             Measured TD: 8370 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 6/1/2025
Wellbore Permit
Permit #: Expiration Date:10/2/2015
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: LGKC , Formation: LANSING-KANSAS CITY , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: MRRW , Formation: MORROW , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: MRTN , Formation: MARMATON , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: MS-SL , Formation: MISSISSIPPIAN-ST LOUIS , Order: , Unit Acreage: , Drill Unit:
Formation And Spacing:Code: SPGN , Formation: SPERGEN , 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:10/26/2013
Spud Date:10/11/2013Spud Date Is:ACTUAL
Measured TD:8370 ft.Measured PB depth:8370 ft.
True Vertical TD:True Vertical PB depth:
Log Types:Triple Combo CBL
Casing:String Type: SURF, Hole Size: 12.5 in., Size: 8.63 in., Top: 0 ft., Depth: 337 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 114, Top: 0 ft., Bottom: 337 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 8381 ft., Weight: 17 , Citings Type: ACTUAL
Cement:Sacks: 1025, Top: 2655 ft., Bottom: 8381 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA4077 ft.N
DAKOTA4602 ft.N
STONE CORRAL6011 ft.N
WOLFCAMP6192 ft.N
LANSING-KANSAS CITY6931 ft.N
MARMATON7243 ft.N
CHEROKEE7425 ft.N
ATOKA7637 ft.N
MORROW7869 ft.N
SPERGEN8058 ft.N
SIMPSON8149 ft.N

Formation SIMSN                   Formation Classification:  OW                   Status:  TA - 11/15/2013                Interval Top: 8166 ft.    Interval Bottom: 8282 ft.

 Completed Information for Formation SIMPSON
1st Production Date:N/AChoke Size: 
Formation Name:SIMPSONCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:FRACTURE STIMULATION
Treatment Date:11/6/2013Treatment End Date:11/14/2013
Treatment Summary:Perf'd 8270-8282- Set CIBP @ 8266' Perf'd 8226-8238 - stimulated with 142 bbls of produced water - Set CIBP @ 8220' perf'd 8192-8206 - Set CIBP @ 8186'
Total fluid used in treatment (bbls):142Max pressure during treatment (psi):1450
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):0Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):0
Fresh water used in treatment (bbls):142Disposition 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 SIMSN.
Perforation Data:
Interval Top:8166 ft.# Of Holes:264
Interval Bottom:8282 ft.Hole Size:0.52 in.

Formation SPGN                     Formation Classification:  OW                     Status:  PR - 12/1/2013                 Interval Top: 8106 ft.    Interval Bottom: 8146 ft.

 Completed Information for Formation SPERGEN
1st Production Date:12/22/2013Choke Size: 
Formation Name:SPERGENCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:
Treatment Date:1/13/2016Treatment End Date:N/A
Treatment Summary:CIBP set @ 8,160' closing off 6' of the Simpson Interval previously submitted as 8,106 - 8,282
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:No
Reason green techniques Not utilized: 
Formation Treatment
Treatment Type:ACID JOB
Treatment Date:11/25/2013Treatment End Date:12/2/2013
Treatment Summary:6,000 gallons of 7.5% acetic acid with inhibitors and 10 gallons of BC-1 asphaltine solvent. The interval treated was ONLY 8,106' -8,146'. CIBP set at 8,160', 8,186', 8,220', & 8,266'
Total fluid used in treatment (bbls):366Max pressure during treatment (psi):
Total gas used in treatment (mcf):0Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):142Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):233Total flowback volume recovered (bbls):
Fresh water used in treatment (bbls):0Disposition method For flowback:DISPOSAL
Total proppant used (lbs):0Green completions techniques utilized:--
Reason green techniques Not utilized: PIPELINE
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 150
BBLS_OIL 30
CALC_BBLS_H2O 98
CALC_BBLS_OIL 144
CASING_PRESS 75
GRAVITY_OIL 36
TUBING_PRESS 45
Perforation Data:
Interval Top:8106 ft.# Of Holes:128
Interval Bottom:8146 ft.Hole Size:0.52 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
May 2024 - April 2025i
Total Oil Produced (Barrels)13141
Total Gas Produced (MCF)3774
GOR287
GOR DeterminationBOE
Average BOE per Day37.760
Average MCFE per Day219.022

 Federal Financial Assurance  i 

 Tribal Well  i No