Dewey County, SD oil and gas wells

Name: Dewey County, SD oil and gas wells
Creator: South Dakota Department of Agriculture and Natural Resources, Geological Survey Program

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

Operator	Active	Wells here
Investors Drilling Ventures Inc.	2	11
Investors Drilling Ventures, Inc.	0	7
Great Plains Resources Inc.	0	6
Herndon Drilling Co.	0	4
Texaco Inc.	0	3
Timberline Oil and Gas Corp.	0	3
B-Mac Oil Co.	0	2
Bueno Drilling Co., Inc.	0	1
Gulf Oil Corp.	0	1
Kerr-McGee Oil Industries, Inc.	0	1
L. L. Tuck	0	1
Pendak Ltd.	0	1
Penn Drilling Company	0	1
Youngblood and Youngblood	0	1

Not plugged · All wells · Plugged · Orphaned

Well	API / ID	Status	Type	Operator
Investors 1 Brooks	40-041-20014	Active	Water supply	Investors Drilling Ventures Inc.
Investors 1 Cowan	40-041-20006	Active	Water supply	Investors Drilling Ventures Inc.