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Custer County, SD oil and gas wells

94 wells: 12 active, 75 plugged, run by 52 operators.

Figures from the South Dakota Department of Agriculture and Natural Resources, Geological Survey Program, updated 2026-10-01.

Top operators in Custer

OperatorActiveWells here
J. E. Palensky23
Dakota Oil Producers22
High Summit Oil and Gas Inc.17
Hy Lee Oil Co.12
Aquarius Resources Corp.11
Barker Valley Oil Development Co.11
D. H. Baldwin11
E. Z. Crum11
K. L. Smith11
R. L. Harris11
Pure Oil Co.07
Sterling Drilling Co.06
Thomas L. Sunde06
E. B. Kucera04
S. Gary04
Continental Oil Co.03
Shell Oil Co.03
B. Wirkkala02
Barker Structure Drilling Co.02
Black Hills Petroleum02
Carter Oil Co.02
E. O. Milburn02
P. G. Benedum Jr.02
A. Dodgin01
A. Wagner01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Anderson 1 Claude Smith 40-033-20021Plugged Dry holeC. T. Anderson
Aquarius 43-7 Hawthorne 40-033-20004Active Water supplyAquarius Resources Corp.
BH Petroleum 1 Barker 40-033-05011Plugged Dry holeBlack Hills Petroleum
BH Petroleum 1 Rockford 40-033-05220Plugged Dry holeBlack Hills Petroleum
Baldwin 1 Triple 777 Ranch 40-033-20007Active Water supplyD. H. Baldwin
Barker 1 Adams 40-033-05222Plugged Dry holeBarker Structure Drilling Co.
Barker 1 Adams 40-033-05224Plugged Dry holeBarker Structure Drilling Co.
Barker Valley 1 Hey 40-033-05117-0100Active Water supplyBarker Valley Oil Development Co.
Benedum 1 Kaiser Ranch 40-033-20003Plugged Dry holeP. G. Benedum Jr.
Benedum 1 USA 40-033-20002Plugged Dry holeP. G. Benedum Jr.
Black Hills Drilling 2 Rothleutner 40-033-05030Active Water supplyE. Z. Crum
Carpenter 1 Cox 40-033-05024Plugged Dry holeM. L. Carpenter
Carter 1 40-033-05219Plugged Dry holeCarter Oil Co.
Carter 2 40-033-05221Plugged Dry holeCarter Oil Co.
Christiana Government Well No. 1 40-033-05034Cancelled / expired UnknownG. E. Hatch
Continental 1 Hasselstrom 40-033-05055Cancelled / expired UnknownContinental Oil Co.
Continental Oil 1 Harrison 40-033-05047Plugged Dry holeContinental Oil Co.
Continental Oil 1 Larson 40-033-05051Plugged Dry holeContinental Oil Co.
Cox 1 Barker Dome 40-033-20022Plugged Dry holeB. Cox
Custer Oil and Development 1 Cornelison Well 40-033-05057Cancelled / expired UnknownCuster Oil and Development Co., Inc.
Dakota Oil 1 Smith 40-033-20024Active Water supplyDakota Oil Producers
Dakota Oil 1A Smith 40-033-20026Active Water supplyDakota Oil Producers
Dakota Oil Kirk 1 40-033-20025Cancelled / expired UnknownDakota Oil Producers Inc.
Dodgin 1 Coffing 40-033-05012Plugged OilThomas L. Sunde
Dodgin 1 Cornelison 40-033-05058Plugged Dry holeA. Dodgin
Dyer 1 Christiana Goverrnment 40-033-05035Plugged Dry holeJ. G. Dyer
Fairburn 1 Fairburn 40-033-05043Plugged Dry holeFairburn
Gary 1 Bohling 40-033-05049Plugged Dry holeS. Gary
Gary 1 O'Neill 40-033-05048Plugged Dry holeS. Gary
Gary 1 Wilsey 40-033-05044Plugged Dry holeS. Gary
Gary 1 Young 40-033-05042Plugged Dry holeS. Gary
Gokel 1 Government 40-033-05223Plugged Dry holeGokel
Graves 1 Borgmeyer 40-033-20005Plugged Dry holeGraves Drilling Co., Inc.
Great Western 1 Coffing 40-033-05023Plugged Dry holeT. E. Eyres
Harris 1 Rothleutner 40-033-05026Active Water supplyR. L. Harris
Helms 1 Coffing 40-033-05015Plugged OilThomas L. Sunde
Helms 1 R. G. Robinson 40-033-05004Plugged Dry holeL. A. Helms
Helms 1 Spencer 40-033-20023Plugged Dry holeD. Helms
Helms and Thompson 1 Coffing 40-033-05007Plugged Dry holeM. Helms and E. Thompson
High Summit 1 Battle Creek 40-033-20014Plugged Dry holeHigh Summit Oil and Gas Inc.
High Summit 3 Battle Creek 40-033-20016Plugged Dry holeHigh Summit Oil and Gas Inc.
High Summit 4 Battle Creek 40-033-20010Plugged Dry holeHigh Summit Oil and Gas Inc.
High Summit 4A Battle Creek 40-033-20003-0100Active Water supplyHigh Summit Oil and Gas Inc.
High Summit 5 Battle Creek 40-033-20011Plugged Dry holeHigh Summit Oil and Gas Inc.
High Summit 6 Battle Creek 40-033-20012Plugged Dry holeHigh Summit Oil and Gas Inc.
High Summit 7 Battle Creek 40-033-20013Plugged Dry holeHigh Summit Oil and Gas Inc.
Hy Lee 1A Nicholas 40-033-20008Plugged Dry holeHy Lee Oil Co.
Hy Lee 1B Nicholas 40-033-20009Active Water supplyHy Lee Oil Co.
Kucera 1 Coffing 40-033-05019Plugged Dry holeE. B. Kucera
Kucera 2 Coffing 40-033-05021Plugged Dry holeE. B. Kucera
Kucera 2A Coffing 40-033-05021-0100Plugged Dry holeE. B. Kucera
Kucera 3 Coffing 40-033-05013Plugged Dry holeE. B. Kucera
L and J Operating 10-34-6-2 40-033-20027Plugged Dry holeL and J Operating Inc.
Milburn 1 Robinson 40-033-05001Plugged Dry holeE. O. Milburn
Milburn 2 Robinson 40-033-05000Plugged Dry holeE. O. Milburn
Mutual Oil 1 Martin 40-033-05128Plugged Dry holeMutual Oil Co.
Ozark 1 Coffing 40-033-05010Plugged OilThomas L. Sunde
Ozark 2 Coffing 40-033-05005Plugged OilThomas L. Sunde
Ozark 3 Coffing 40-033-05113Plugged DisposalThomas L. Sunde
Ozark1 Cox Government 40-033-05014Plugged Dry holeThe Ozark Corp.
Palensky 1 Smith 40-033-05038Active Water supplyJ. E. Palensky
Palensky 1 Streeter 40-033-05027Active Water supplyJ. E. Palensky
Palensky 2 Smith 40-033-05039Plugged Dry holeJ. E. Palensky
Phillips Government 1 40-033-05046Plugged Dry holePhillips Petroleum Co.
Pure 1 Ashmore 40-033-05031Plugged Dry holePure Oil Co.
Pure 1 Bergmeyer 40-033-05045Plugged Dry holePure Oil Co.
Pure 1 Carey 40-033-05037Plugged Dry holePure Oil Co.
Pure 1 Government A 40-033-05118Plugged Dry holePure Oil Co.
Pure 1 Government B 40-033-05036Plugged Dry holePure Oil Co.
Pure 1 Keliher 40-033-05052Plugged Dry holePure Oil Co.
Pure 1 Stabelfeldt 40-033-05054Plugged Dry holePure Oil Co.
S.D. Oil Development 1 Hey 40-033-05117Plugged Dry holeSouth Dakota Oil Development Co., Inc.
Samedan 1 Norris 40-033-20001Plugged Dry holeSamedan Oil Corp.
Seppala 1 Hey Government 40-033-05008Plugged Dry holeT. L. Seppala
Shallow Rock 1 Coffing 40-033-05009Plugged Dry holeShallow Rock Exploration Co.
Shell 1 Engelbrecht 40-033-05025Plugged Dry holeShell Oil Co.
Shell 1 Evans 40-033-05053Plugged Dry holeShell Oil Co.
Shell 1 Flier 40-033-05050Plugged Dry holeShell Oil Co.
Smith 1 Cornelison 40-033-20006Active Water supplyK. L. Smith
Snyder 1 Cox 40-033-05227Cancelled / expired UnknownHugh B. Snyder
Sparks 1 Cornelison 40-033-05033Plugged Dry holeE. Sparks
Sterling 1 Flier 40-033-05111Plugged Dry holeSterling Drilling Co.
Sterling 1 Ireland 40-033-05110Plugged Dry holeSterling Drilling Co.
Sterling 1 Isaacs 40-033-05225Cancelled / expired UnknownSterling Drilling Co.
Sterling 1 Kosturos 40-033-05109Plugged Dry holeSterling Drilling Co.
Sterling 1 Peterson 40-033-05226Cancelled / expired UnknownSterling Drilling Co.
Sterling 1 Scism 40-033-05112Plugged Dry holeSterling Drilling Co.
Sunde 1-6-2-34 Spencer 40-033-20028Plugged OilThomas L. Sunde
Thompson-Rothleutner 1 40-033-05028Plugged Dry holeBlack Hills Drilling Co., Inc.
Voice 1 Coffing 40-033-05017Plugged Dry holeJ. M. Voice
Wagner 1 Government 40-033-05032Plugged Dry holeLyle A. Wagner
Wagner 1 Kline 40-033-05006Plugged Dry holeA. Wagner
Wirkkala 1 Johnson 40-033-05016Plugged Dry holeB. Wirkkala
Wirkkala 1 Robinson 40-033-05002Plugged Dry holeB. Wirkkala