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 Surface Location
 API# 05-073-06552
Well Classification: OW Status: PR - 10/1/2025
Well Name/No:BIG SKY #5-11
(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:434359LocationID:434358
County:LINCOLN #073Location:SWNW 11 6S54W 6
Field:ARIKAREE CREEK - #2914Elevation:5217 ft.
Basin:DENVER (DJ) BASIN  
Planned Location:1922FNL  621 FWLLat/Long: 39.545180 / -103.414600Lat/Long Source: Field Measured
As Drilled Location:Footages Not AvailableLat/Long: 39.545190 / -103.414600Lat/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: 8284 ft.

 Wellbore Data for Original WellboreWellbore Classification: OW        PR - 10/1/2025
Wellbore Permit
Permit #: Expiration Date:9/22/2015
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: 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: S.C. 1.1, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 8700 ft., Weight: 17 , Citings Type: PLANNED
Cement:Sacks: 722, Top: 0 ft., Bottom: 8700 ft.
Casing:String Type: S.C. 1.2, Hole Size: 7.875 in., Size: 5.5 in., Top: 0 ft., Depth: 8700 ft., Weight: 17 , Citings Type: PLANNED
Cement:Sacks: 317, Top: 6000 ft., Bottom: 8700 ft.

Wellbore Completed
Completion Date:2/26/2014
Spud Date:1/14/2014Spud Date Is:ACTUAL
Measured TD:8284 ft.Measured PB depth:8237 ft.
True Vertical TD:True Vertical PB depth:
Log Types:triple combo, CBL, sonic
Casing:String Type: SURF, Hole Size: 12.25 in., Size: 8.625 in., Top: 0 ft., Depth: 336 ft., Weight: 24 , Citings Type: ACTUAL
Cement:Sacks: 122, Top: 0 ft., Bottom: 336 ft., Determination Method: VISU
Casing:String Type: 1ST, Hole Size: 7.625 in., Size: 5.5 in., Top: 0 ft., Depth: 8282 ft., Weight: 17 , Citings Type: ACTUAL
Cement:Sacks: 1109, Top: 3470 ft., Bottom: 8282 ft., Determination Method: CBL
FormationInterval TopLog BottomCoredDSTs
NIOBRARA3680 ft.
DAKOTA4614 ft.
STONE CORRAL5996 ft.
WOLFCAMP6200 ft.
LANSING-KANSAS CITY6912 ft.
MARMATON7244 ft.
CHEROKEE7446 ft.
ATOKA7637 ft.
MORROW7880 ft.
SPERGEN8063 ft.

Formation SPGN                     Formation Classification:  OW                     Status:  PR - 10/1/2025                 Interval Top: 8090 ft.    Interval Bottom: 8124 ft.

 Completed Information for Formation SPERGEN
1st Production Date:3/5/2014Choke Size: 
Formation Name:SPERGENCommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:ACID JOB
Treatment Date:4/13/2015Treatment End Date:4/15/2015
Treatment Summary:Re-perforated 8,108'-8,124' (96 holes) Acidized with 84.5 bbls of Parene solvent and dropped 200 1.3 SG bio balls. Displaced with 43.5 bbls of 2% KCL
Total fluid used in treatment (bbls):128Max pressure during treatment (psi):1970
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):84Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):43Total flowback volume recovered (bbls):0
Fresh water used in treatment (bbls):Disposition method For flowback:
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: 
Formation Treatment
Treatment Type:ACID JOB
Treatment Date:2/3/2015Treatment End Date:2/27/2015
Treatment Summary:Re- perfed existing interval, plus an additional 6' new interval (204 new perf holes, plus 112 original holes shot = 316 total). Pumped 4830 gallons of Mutual Solvent & pumped 100 bio degradable perf balls. Displaced with 45 bbls of 2% KCL
Total fluid used in treatment (bbls):160Max pressure during treatment (psi):2610
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):115Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):45Total flowback volume recovered (bbls):220
Fresh water used in treatment (bbls):Disposition method For flowback:DISPOSAL
Total proppant used (lbs):Green completions techniques utilized:--
Reason green techniques Not utilized: PIPELINE
Formation Treatment
Treatment Type:
Treatment Date:2/21/2014Treatment End Date:2/21/2014
Treatment Summary:Perf'd Spergen formation only -* No treatment was done
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:--
Reason green techniques Not utilized: 
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 258
BBLS_OIL 221
CALC_BBLS_H2O 258
CALC_BBLS_OIL 221
CASING_PRESS 45
GRAVITY_OIL 36
TUBING_PRESS 55
Perforation Data:
Interval Top:8090 ft.# Of Holes:412
Interval Bottom:8124 ft.Hole Size:0.42 in.

Formation MRTN                     Formation Classification:  OW                     Status:  PR - 10/1/2025                 Interval Top: 7356 ft.    Interval Bottom: 7361 ft.

 Completed Information for Formation MARMATON
1st Production Date:12/19/2014Choke Size: 
Formation Name:MARMATONCommingled:Yes
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:ACID JOB
Treatment Date:2/20/2015Treatment End Date:2/26/2015
Treatment Summary:Re-perf'd 7356' - 7361' (30 addtl holes-added to original total, which has since been squeezed) Acidized pumping 4,000 gallons of 20% HCI gelled acid, displaced with 100 bbls of 2% KCL
Total fluid used in treatment (bbls):195Max pressure during treatment (psi):2570
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):95Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):100Total flowback volume recovered (bbls):147
Fresh water used in treatment (bbls):Disposition 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:11/14/2014Treatment End Date:12/1/2014
Treatment Summary:Acidized with 600 gallons of 15% HCL with Ras 10,IC-75, CIA-161, SI-4 and ARG36 - and then additional 14 bbls of 15% HCL Displaced with 31 bbls of 2% KCL water. Perfs ( 7356-7361) Acidized with 120 bbls of 15% HCL with Ras 10,(surfactant, anti-sludge) IC-75, (iron control) CIA,(corrosion/acid inhibitor) SI-4 (scale inhibitor) & AR-630 (clay stabilizer) displaced with 45 bbls of KCL water Perf's 7254-7274) Acidized with 1200 gallons of 15% HCL with same above additives and displaced with 45 bbls of 2% KCL water(7218-7222)
Total fluid used in treatment (bbls):342Max pressure during treatment (psi):2600
Total gas used in treatment (mcf):Fluid density (lbs/gal):
Type Of gas:Number Of staged intervals:
Total acid used in treatment (bbls):176Min frac gradient (psi/ft):
Recycled water used in treatment (bbls):Total flowback volume recovered (bbls):360
Fresh water used in treatment (bbls):166Disposition method For flowback:DISPOSAL
Total proppant used (lbs):Green 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 216
BBLS_OIL 28
BTU_GAS 820
CALC_BBLS_H2O 216
CALC_BBLS_OIL 28
CALC_GOR 1
CALC_MCF_GAS 30
CASING_PRESS 14
GRAVITY_OIL 36
MCF_GAS 30
TUBING_PRESS 60
Perforation Data:
Interval Top:7356 ft.# Of Holes:30
Interval Bottom:7361 ft.Hole Size:0.48 in.

Formation MS-PN                   Formation Classification:  OW                   Status:  CM - 6/11/2015                 Interval Top: 7356 ft.    Interval Bottom: 8124 ft.

 Completed Information for Formation MISSISSIPPIAN-PENNSYLVANI
1st Production Date:N/AChoke Size: 
Formation Name:MISSISSIPPIAN-PENNSYLVANICommingled:
Production Method:
Open Hole Completion:
Formation Treatment
Treatment Type:
Treatment Date:3/6/2015Treatment End Date:N/A
Treatment Summary:Test info is commingled results of MRTN & SPGN
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:--
Reason green techniques Not utilized: 
Tubing Size:2.875 in.Tubing Setting Depth:8188 ft.
Tubing Packer Depth:Tubing Multiple Packer:
Open Hole Top:Open Hole Bottom:
Initial Test Data:
Test Date:4/18/2015Test Method:Pumping
Hours Tested:24Gas Type:DRY
Gas Disposal:FLARED
Test TypeMeasure
BBLS_H2O 89
BBLS_OIL 77
BTU_GAS 820
CALC_BBLS_H2O 89
CALC_BBLS_OIL 77
CALC_GOR 208
CALC_MCF_GAS 16
CASING_PRESS 39
GRAVITY_OIL 36
MCF_GAS 16
TUBING_PRESS 65
Perforation Data:
Interval Top:7356 ft.# Of Holes:442
Interval Bottom:8124 ft.Hole Size:0.42 in.

Formation LGKC                     Formation Classification:  OW                     Status:  AB - 2/5/2015                  Interval Top: 7172 ft.    Interval Bottom: 7180 ft.

 Completed Information for Formation LANSING-KANSAS CITY
1st Production Date:N/AChoke Size: 
Formation Name:LANSING-KANSAS CITYCommingled:No
Production Method:
Open Hole Completion:No
Formation Treatment
Treatment Type:
Treatment Date:2/5/2015Treatment End Date:N/A
Treatment Summary:Performed another cement squeeze
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:--
Reason green techniques Not utilized: 
Formation Treatment
Treatment Type:
Treatment Date:12/2/2014Treatment End Date:12/15/2014
Treatment Summary:Perforated only and then squeezed - Formation no longer open
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:--
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 LGKC.
Perforation Data:
Interval Top:7172 ft.# Of Holes:48
Interval Bottom:7180 ft.Hole Size:0.51 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)2286
Total Gas Produced (MCF)946
GOR413
GOR DeterminationBOE
Average BOE per Day6.727
Average MCFE per Day39.055

 Federal Financial Assurance  i 

 Tribal Well  i No