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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
Aquarius 43-7 Hawthorne 40-033-20004Active Water supplyAquarius Resources Corp.
Baldwin 1 Triple 777 Ranch 40-033-20007Active Water supplyD. H. Baldwin
Barker Valley 1 Hey 40-033-05117-0100Active Water supplyBarker Valley Oil Development Co.
Black Hills Drilling 2 Rothleutner 40-033-05030Active Water supplyE. Z. Crum
Dakota Oil 1 Smith 40-033-20024Active Water supplyDakota Oil Producers
Dakota Oil 1A Smith 40-033-20026Active Water supplyDakota Oil Producers
Harris 1 Rothleutner 40-033-05026Active Water supplyR. L. Harris
High Summit 4A Battle Creek 40-033-20003-0100Active Water supplyHigh Summit Oil and Gas Inc.
Hy Lee 1B Nicholas 40-033-20009Active Water supplyHy Lee Oil Co.
Palensky 1 Smith 40-033-05038Active Water supplyJ. E. Palensky
Palensky 1 Streeter 40-033-05027Active Water supplyJ. E. Palensky
Smith 1 Cornelison 40-033-20006Active Water supplyK. L. Smith