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EHSRRU P-30

API 4006320710 · Harding County, South Dakota · East Harding Springs field

ProducingOil
API
4006320710
Operator
Luff Exploration Co.
County
Harding
Field
East Harding Springs
Location
SESE Sec 30 Twp 023N Rng 06E
Permit
1974

Production

191 monthly filings with South Dakota, Aug 2010 to Jun 2026. Each product is in its own unit and the four are never added.

Cumulative oil
153,910 bbl
Cumulative gas
78,193 MCF
Cumulative water
429,114 bbl
PeriodOil (bbl)Gas (MCF)Water (bbl)Days
Jun 2026188832,10830
May 2026183802,38331
Apr 2026213932,32330
Mar 2026196862,55231
Feb 2026186812,19028
Jan 2026216952,49031
Dec 2025218952,34131
Nov 2025200872,43627
Oct 2025211922,32929
Sep 2025223982,38030
Aug 20252321012,51331
Jul 20252361042,30631
Jun 2025242622,40630
May 2025247632,59231
Apr 2025244622,69330
Mar 2025277702,82231
Feb 2025203512,61524
Jan 2025248632,02627
Dec 2024271692,51631
Nov 2024272692,48330
Oct 2024296752,73331
Sep 2024262672,56430
Aug 2024290742,68431
Jul 2024290742,53431
Jun 2024291742,46530
May 20242991712,36831
Apr 20243151802,36130
Mar 20243391932,51431
Feb 20243211832,39329
Jan 20243602052,78931
Dec 20233682103,47631
Nov 20231096283310
Oct 20233241852,49631
Sep 20233241852,40530
Aug 20233612062,52631
Jul 20233682102,39531
Jun 20233691232,40730
May 20234071362,46531
Apr 20234011342,91530
Mar 20234271422,68431
Feb 20233681222,60228
Jan 20234781593,21231
Dec 20224021342,18424
Nov 20224331442,02430
Oct 20224681562,40630
Sep 20224521502,77730
Aug 20224621542,89731
Jul 20224911642,64231
Jun 20224671352,73330
May 20225001452,65231
Apr 20225061462,54430
Mar 20225441572,61431
Feb 20225171492,53328
Jan 20224251232,28920
Dec 20215311532,15130
Nov 20215281532,18730
Oct 20215421572,36431
Sep 20215311542,69130
Aug 20215321542,96531
Jul 20215651633,08031
Jun 20215531602,73330
May 20215711652,40631
Apr 20215641922,46130
Mar 20216172102,31131
Feb 20215781972,20628
Jan 20216432192,47131
Dec 20206132082,25624
Nov 20205401842,01627
Oct 20206602242,46631
Sep 20206482202,39530
Aug 20206702283,01831
Jul 20206952362,94031
Jun 20207212452,61030
May 20205932021,79523
Apr 20206781692,57930
Mar 20207281812,49631
Feb 20207341832,29029
Jan 20208011992,48831
Dec 20198322072,66631
Nov 20197121772,66326
Oct 20198512122,87231
Sep 20198372082,82230
Aug 20199072262,96531
Jul 20198822202,15223
Jun 20197241801,86125
May 20198622152,28931
Apr 20198442282,24730
Mar 20198702352,03031
Feb 20197852121,71728
Jan 20198912411,88631
Dec 20188982432,08331
Nov 20189562582,07230
Oct 20181,0312782,06531
Sep 20181,0642872,31430
Aug 20188192211,64620
Jul 20181,0922952,64231
Jun 20181,0762912,47030
May 20181,1463092,48631
Apr 20181,1464252,38830
Mar 20181,3294932,88430
Feb 20187822901,73821
Jan 20181,187440—31
Dec 20171,1904422,55831
Nov 20171,1784372,31530
Oct 20171,2174522,26131
Sep 20171,2034462,13430
Aug 20171,2804752,31831
Jul 20171,2514642,45727
Jun 20171,0493891,98927
May 20171,3284932,38731
Apr 20171,3205742,28730
Mar 20171,4606352,45531
Feb 20171,8027842,85428
Jan 201763171
Dec 20161,2755552,40331
Nov 20161,2645502,52830
Oct 20161,3025662,56931
Sep 20161,2455422,36830
Aug 20161,2985652,46131
Jul 20161,2995652,47831
Jun 20161,2815572,33130
May 20161,3213692,21230
Apr 20161,2903602,38730
Mar 20161,3343722,47331
Feb 20161,2583511,90129
Jan 20161,3263702,34831
Dec 20151,3203682,42231
Nov 20151,2603522,14730
Oct 20151,2713542,20231
Sep 20151,1323162,37927
Aug 20158905781,90727
Jul 20158455462,18531
Jun 20157444671,75130
May 20157792171,88130
Apr 20157023232,31130
Mar 20155272422,19222
Feb 20154702161,23124
Jan 20156062791,62931
Dec 20146933191,48931
Nov 20147103271,92830
Oct 20145372471,89424
Sep 20145622591,53526
Aug 20145902711,64630
Jul 20146312241,80031
Jun 20146582341,79130
May 20146932471,60430
Apr 20147782771,76130
Mar 20145451941,69221
Feb 20146852441,87528
Jan 20147202561,49331
Dec 20138122891,26831
Nov 20138062871,45130
Oct 20137202561,45229
Sep 20138543041,49230
Aug 20138743111,80731
Jul 20138236902,11831
Jun 20138847411,84130
May 20139497951,96731
Apr 20138316961,82930
Mar 20139628061,53031
Feb 20139718141,49628
Jan 20139397871,74031
Dec 20121,1489621,98231
Nov 20121,0809051,94330
Oct 20121,1739832,12431
Sep 20121,2711,0651,95330
Aug 20121,2241,0262,44331
Jul 20129678102,08119
Jun 201256760196019
May 20121,1491,2181,71631
Apr 20121,0761,1401,65730
Mar 20121,1101,1761,64931
Feb 20121,1001,1661,50229
Jan 20121,1681,2381,92031
Dec 20111,2281,3011,99731
Nov 20111,1271,1951,90430
Oct 20111,0441,1071,79031
Sep 20111,2991,3772,03530
Aug 20111,2671,3432,28131
Jul 20111,2251,2992,20931
Jun 20111,2429382,44430
May 20111,4071,0624,30531
Apr 20116885191,63914
Mar 20111,5561,1751,80929
Feb 20111,5861,1981,62128
Jan 20111,7991,3582,04431
Dec 20102,1361,6132,33031
Nov 20102,2701,7142,60530
Oct 20101,9311,4582,23325
Sep 20102,2971,7343,14830
Aug 20103,3262,5854,61026

A dash is a period the well filed with no volume for that product.

Formation tops

South Dakota records 25 formations for this well, shallowest first.

FormationTop (ft)Age
Hell Creek Formation2,195Cretaceous
Niobrara Formation3,075Cretaceous
Carlile Shale3,265Cretaceous
Greenhorn Limestone3,595Cretaceous
Mowry Shale4,104Cretaceous
Fall River Sandstone4,494Cretaceous
Piper Formation5,412Triassic
Spearfish Formation5,788Triassic/Permian
Minnekahta Limestone5,968Permian
Opeche Shale6,013Permian
Minnelusa Formation6,046Permian/Pennsylvanian
Kibbey Formation6,674Mississippian
Charles Formation6,770Mississippian
Mission Canyon Limestone7,095Mississippian
Lodgepole Limestone7,522Mississippian
Nisku Formation8,120Devonian
Duperow Formation8,151Devonian
Souris River Formation8,320Devonian
Interlake Dolomite8,369Silurian
Stonewall Limestone8,682Silurian/Ordovician
Gunton Member, Stony Mountain Formation8,777Ordovician
Stony Mountain Formation8,817Ordovician
Red River Formation8,894Ordovician
Unit A, Red River Formation8,900Ordovician
Unit B, Red River Formation8,925Ordovician

A dash is a formation South Dakota records for this well without a depth.

Completion

South Dakota files 1 completion report for this well.

Lateral 1 (East)

ProducingOil
Spudded
2010-06-28
Completed
2010-08-06
Measured depth
13,693 ft
True vertical depth
8,994.6 ft

Interval

FormationPerforated (ft)
Unit B, Red River Formation9,240–13,693

Location

45.922196, -103.422633

45.92220, -103.42263 · Surface location as filed with South Dakota

Every well in Harding County, South Dakota

South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.