Home › Operator portfolio

Operator portfolio

Every well a company runs, across every state we cover, in one download. States spell operator names differently, so we gather every spelling and you tick the ones that belong.

Untick any company that is not the one you want: a search for "Diversified" also finds unrelated firms that start the same way.

Name as the state records it	State	Active	Wells
Calvert Drilling 9 names · CO, IL, IN, KS, ND, OK, WY		0	924
Calvert Drilling, Inc.	IL	0	673
Calvert Drilling, Inc.	IN	0	79
CALVERT DRILLING COMPANY	OK	0	77
CALVERT DRILLING, INC.	ND	0	67
CALVERT DRILLING, INC	CO	0	21
CALVERT DRILLING CO.	ND	0	4
CALVERT DRILLING	WY	0	1
Calvert Drilling Co.	KS	0	1
Calvert Drilling Inc.	IL	0	1
Calvert And Willis 2 names · IL, IN		0	127
Calvert & Willis	IL	0	105
Calvert and Willis, Inc.	IN	0	22
Calvert Funds 1 name · IL		0	51
Calvert Funds, Inc.	IL	0	51
Calvert Exploration 7 names · AR, CO, LA, ND, OK, TX, UT		0	48
CALVERT EXPLORATION CO.	ND	0	36
Calvert Exploration Co	UT	0	4
CALVERT EXPLORATION CO	OK	0	3
CALVERT EXPLORATION COMPANY	CO	0	2
CALVERT EXPLORATION COMPANY	LA	0	1
Calvert Exploration Co	AR	0	1
CALVERT EXPLORATION COMPANY	TX	0	1
Calvert Drilling And Producing 2 names · MT, ND		0	38
CALVERT DRILLING & PRODUCING CO.	ND	0	21
Calvert Drilling & Producing Co.	MT	0	17
Calvert Operating 1 name · OK		18	26
CALVERT OPERATING LLC	OK	18	26
Calvert Petroleum 5 names · CO, IL, IN, ND		0	18
Calvert Petro. Co.	IL	0	11
CALVERT PETROLEUM COMPANY	CO	0	3
Calvert Petroleum Company	IN	0	2
CALVERT PETROLEUM CO.	ND	0	1
Calvert Petroleum Co.	IL	0	1
Calvert Eastern Drlg 1 name · IL		0	10
Calvert Eastern Drlg.	IL	0	10
Calvert Drilling And Anmar Oil And Gas 1 name · ND		0	6
CALVERT DRILLING & ANMAR OIL & GAS CORP.	ND	0	6
Calvert Seeligson 1 name · CO		0	5
CALVERT-SEELIGSON	CO	0	5
Calvert Drilling And Stratigraphic Oil 1 name · ND		0	3
CALVERT DRILLING & STRATIGRAPHIC OIL	ND	0	3
Calvert Eastern Drilling 1 name · MI		0	2
CALVERT EASTERN DRILLING CO	MI	0	2
Calvert And Porter 1 name · LA		0	1
CALVERT & PORTER	LA	0	1
Calvert Braziel 1 name · TX		0	1
CALVERT BRAZIEL	TX	0	1
Calvert And Bridger 1 name · ND		0	1
CALVERT & BRIDGER	ND	0	1
Calvert And Shar Alan Oil 1 name · ND		0	1
CALVERT & SHAR ALAN OIL CO.	ND	0	1
Calvert Drilling And Buttes Gas And Oil 1 name · ND		0	1
CALVERT DRILLING & BUTTES GAS & OIL CO.	ND	0	1
Calvert Drilling And R K Petroleum 1 name · ND		0	1
CALVERT DRILLING & R. K. PETROLEUM CORP.	ND	0	1
Calvert Drilling And Wolf Exploration 1 name · ND		0	1
CALVERT DRILLING & WOLF EXPLORATION CO.	ND	0	1
Calvert Exploration And Leonard Ward 1 name · ND		0	1
CALVERT EXPLORATION & LEONARD WARD	ND	0	1
Calvert Exploration Northwestern Refining 1 name · ND		0	1
CALVERT EXPLORATION-NORTHWESTERN REFINING	ND	0	1
Calvert Richard And Marjore 1 name · OH		1	1
CALVERT RICHARD & MARJORE	OH	1	1
Calvert Horace K 1 name · WY		0	1
CALVERT HORACE K	WY	0	1
Calvert R 1 name · MS		0	1
CALVERT R L	MS	0	1
Calvert Eastern Drilling Co And Primm William W 1 name · MI		0	1
CALVERT EASTERN DRILLING CO AND PRIMM WILLIAM W	MI	0	1
Calvert And Gilliam 1 name · IL		0	1
Calvert & Gilliam	IL	0	1
Calvert Drlg W Duncan 1 name · IL		0	1
Calvert Drlg-W Duncan	IL	0	1
Calvert Drlg 1 name · IL		0	1
Calvert Drlg. Co.	IL	0	1
Calvert Etal 1 name · IL		0	1
Calvert Etal	IL	0	1
Calvert Warren 1 name · IL		0	1
Calvert, Warren L.	IL	0	1
Calvert Gallagher 1 name · IL		0	1
Calvert-Gallagher	IL	0	1
Calvert 1 name · IN		0	1
Calvert	IN	0	1