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Dewey County, SD oil and gas wells

43 wells: 2 active, 30 plugged, run by 14 operators.

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

Top operators in Dewey

OperatorActiveWells here
Investors Drilling Ventures Inc.211
Investors Drilling Ventures, Inc.07
Great Plains Resources Inc.06
Herndon Drilling Co.04
Texaco Inc.03
Timberline Oil and Gas Corp.03
B-Mac Oil Co.02
Bueno Drilling Co., Inc.01
Gulf Oil Corp.01
Kerr-McGee Oil Industries, Inc.01
L. L. Tuck01
Pendak Ltd.01
Penn Drilling Company01
Youngblood and Youngblood01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Bueno 1 Holloway State 40-041-05056Plugged Dry holeBueno Drilling Co., Inc.
Gulf 1 Jewett 40-041-20001Plugged Dry holeGulf Oil Corp.
Herndon 1 Merkel 40-041-05005Plugged Dry holeHerndon Drilling Co.
Herndon 1 State 40-041-05001Plugged Dry holeHerndon Drilling Co.
Herndon 1A O'Leary 40-041-05002Plugged Dry holeHerndon Drilling Co.
Herndon1 O'Leary 40-041-05159Plugged Dry holeHerndon Drilling Co.
Investor 2 Mary Summer Cook 40-041-20016Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investor 3 Mary Summer Cook 40-041-20017Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investor 4 Mary Summer Cook 40-041-20018Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investors 1 Anna Red Bird 40-041-20022Plugged DisposalTimberline Oil and Gas Corp.
Investors 1 Brings the Horses 40-041-20015Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investors 1 Brooks 40-041-20014Active Water supplyInvestors Drilling Ventures Inc.
Investors 1 Cook 40-041-20010Status not reported Dry holeTimberline Oil and Gas Corp.
Investors 1 Cowan 40-041-20006Active Water supplyInvestors Drilling Ventures Inc.
Investors 1 Holloway 40-041-20002Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 1 Little Skunk 40-041-20024Plugged OilB-Mac Oil Co.
Investors 1 McDonald 40-041-20020Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investors 1 McLellan 40-041-20013Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investors 1 State 40-041-20003Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 1 Summer Cook 40-041-20011Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 2 Brings The Horses 40-041-20021Plugged OilB-Mac Oil Co.
Investors 2 Cook 40-041-20012Plugged Dry holeTimberline Oil and Gas Corp.
Investors 2 Holloway 40-041-20004Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 2 McLellan 40-041-20019Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 3 Brings the Horses 40-041-20025Status not reported Dry holeInvestors Drilling Ventures Inc.
Investors 3 Holloway 40-041-20005Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 3 Jacob Little Skunk 40-041-20023Plugged Dry holeGreat Plains Resources Inc.
Investors 5 Holloway 40-041-20007Cancelled / expired UnknownInvestors Drilling Ventures, Inc.
Investors 6 Holloway 40-041-20008Plugged Dry holeInvestors Drilling Ventures Inc.
Investors 7 Holloway 40-041-20009Plugged OilInvestors Drilling Ventures Inc.
Kerr-McGee 1 Cook 40-041-05000Plugged Dry holeKerr-McGee Oil Industries, Inc.
Little Skunk 11-29 40-041-20034Cancelled / expired UnknownGreat Plains Resources Inc.
Pendak 1 Cowan 40-041-05003Plugged Dry holePendak Ltd.
Penn Drilling Company 1 40-041-05158Plugged Dry holePenn Drilling Company
Texaco 1 State C 40-041-20030Plugged Dry holeTexaco Inc.
Texaco 1 Welder 40-041-20032Cancelled / expired UnknownTexaco Inc.
Texaco 1 Yuker 40-041-20031Plugged Dry holeTexaco Inc.
Tuck 1 Holloway Hunt 40-041-20028Plugged OilGreat Plains Resources Inc.
Tuck 1 Holloway Hunt State 40-041-20029Plugged Dry holeL. L. Tuck
Tuck 1 Holloway State 40-041-20027Plugged OilGreat Plains Resources Inc.
Tuck 1 Joe Little Skunk 40-041-20026Plugged OilGreat Plains Resources Inc.
Tuck 2 Holloway Hunt 40-041-20033Plugged OilGreat Plains Resources Inc.
Youngblood 1 Galvin 40-041-05004Plugged Dry holeYoungblood and Youngblood