Who operates wells in Kansas

65,728 companies appear on the register. The 164 with at least 300 wells get a page.

Operator of record	Wells	Share
Cities Service CO	5,200	1.0%
Oxy Usa, INC	2,540	0.5%
Quest Cherokee, LLC	2,404	0.5%
Skelly Oil CO	2,070	0.4%
Cities Service Oil CO	2,043	0.4%
American Warrior, INC	1,920	0.4%
Rj Energy, LLC	1,880	0.4%
Amoco Production CO	1,803	0.3%
Colt Energy INC	1,668	0.3%
Murfin Drilling Co., INC	1,544	0.3%
Continental Oil CO	1,441	0.3%
Murfin Drilling CO	1,349	0.3%
John O. Farmer, INC	1,281	0.2%
Anadarko Petroleum Corp	1,250	0.2%
Stanolind Oil & Gas CO	1,240	0.2%
Pickrell Drilling CO	1,172	0.2%
Petroleum, INC	1,169	0.2%
Altavista Energy, INC	1,163	0.2%
Ritchie Exploration, INC	1,141	0.2%
Running Foxes Petroleum INC	1,135	0.2%
Raymond Oil Co., INC	1,105	0.2%
Petroleum INC	1,098	0.2%
Layton Oil CO	1,085	0.2%
Palomino Petroleum, INC	1,076	0.2%
Phillips Petroleum CO	1,049	0.2%
Kcc Fee Fund Plug	1,040	0.2%
State of Kansas	1,022	0.2%
Not Confirmed	1,019	0.2%
R J Enterprises	1,019	0.2%
Anadarko Production CO	987	0.2%
Dart Cherokee Basin Operating Co., LLC	961	0.2%
Stanolind Oil and Gas CO	956	0.2%
Mobil Oil Corp	943	0.2%
Empire	943	0.2%
Mccoy Petroleum Corp	923	0.2%
Gulf Oil Corp	910	0.2%
Birk Petroleum	901	0.2%
Benson Mineral Group, INC	887	0.2%
Merit Energy Company, LLC	886	0.2%
Haas Petroleum, LLC	884	0.2%
Kansas Resource Exploration & Development, LLC	873	0.2%
Lario Oil and Gas CO	869	0.2%
Laymon Oil Ii, LLC	868	0.2%
Kdot	842	0.2%
E.h. Adair Oil CO	835	0.2%
Wells-battelstein	831	0.2%
Mull Drilling Co., INC	818	0.2%
Kelt Energy	807	0.2%
Okmar Oil CO	806	0.2%
Bobcat Oilfield Services, INC	806	0.2%
Donald C. Slawson	769	0.1%
Eagle Picher	743	0.1%
Tailwater, INC	742	0.1%
Pickrell Drilling Co., INC	732	0.1%
Stekoll Petroleum CO	710	0.1%
Vincent Oil Corp	699	0.1%
Dane G. Hansen Trust	697	0.1%
Sinclair Prairie Oil CO	686	0.1%
Layne Energy Operating, LLC	680	0.1%
Sandridge Exploration and Production LLC	678	0.1%
Osborn Energy, L.l.c	670	0.1%
Jtc Oil, INC	668	0.1%
Mobil Oil	666	0.1%
Samuel Gary Jr. and Assoc., INC	663	0.1%
Range Oil Co., INC	661	0.1%
Derby Oil CO	660	0.1%
Enerjex Kansas, INC	654	0.1%
Txo Production Corp	653	0.1%
Shell Oil CO	627	0.1%
Berexco, INC	623	0.1%
Mai Oil Operations, INC	622	0.1%
Berexco LLC	621	0.1%
N & B Enterprises	564	0.1%
Texaco INC	559	0.1%
Nadel & Gussman	557	0.1%
Town Oil CO	556	0.1%
F.g. Holl Co., LLC	548	0.1%
Frontier Oil CO	547	0.1%
Jones, Shelburne, and Farmer, INC	541	0.1%
Town Oil Company INC	533	0.1%
Beren Corp	528	0.1%
Tdr Construction, INC	523	0.1%
Rantoul Energy Corp	511	0.1%
Edward E. Birk	510	0.1%
American Energies Corp	502	0.1%
R.p. Nixon Operations	502	0.1%
Downing-nelson Oil Co. INC	496	0.1%
Damson Oil Corp	487	0.1%
Helmerich & Payne	486	0.1%
Westgate-greenland Oil CO	485	0.1%
L. D. Drilling, INC	482	0.1%
Layton Oil Company	479	0.1%
Deep Rock Oil Corp	473	0.1%
Icer Addis Oil Operations	473	0.1%
Imperial Oil CO	466	0.1%
Piqua Petro, INC	465	0.1%
Magnolia Petroleum CO	462	0.1%
Texas CO	457	0.1%
Stelbar Oil Corp	457	0.1%
F G Holl	457	0.1%
Cherokee Wells LLC	453	0.1%
Alpine Oil & Royalty CO	451	0.1%
Frontier Oil	448	0.1%
Kansas Geological Survey	445	0.1%
Dreiling Oil, INC	444	0.1%
Victor J. Leis	441	0.1%
Kewanee Oil CO	439	0.1%
Val Energy, INC	435	0.1%
Rains & Williamson Oil CO	421	0.1%
D. E. Exploration, INC	421	0.1%
Town Oil Company	417	0.1%
Natl. Coop. Refinery Assoc	414	0.1%
Shields Oil Producers INC	413	0.1%
Triple-i Energy	411	0.1%
Pan American Petroleum Corp	409	0.1%
Loraine Cleaver	407	0.1%
Bird & Hanley Oil CO	403	0.1%
Gear Petroleum CO	396	0.1%
Triple-i Energy Corp	396	0.1%
Postrock Midcontinent Production LLC	391	0.1%
Lee Phillips Oil CO	390	0.1%
Texaco, INC	389	0.1%
El Dorado Refining CO	387	0.1%
Noble Energy, INC	387	0.1%
Hummon Corp	385	0.1%
Scz Resources, LLC	374	0.1%
Imperial Oil	372	0.1%
Aladdin Petroleum Corp	363	0.1%
Blue Jay Operating, LLC	363	0.1%
Vess Oil Corp	362	0.1%
Reese Exploration, INC	362	0.1%
Shakespeare Oil Co., INC	362	0.1%
Hughes Drilling CO	361	0.1%
A. Scott Ritchie	358	0.1%
Amerada Petroleum Corp	355	0.1%
Mcgown Drilling, INC	353	0.1%
Range Oil	352	0.1%
Rosewood Resources, INC	351	0.1%
Woolsey Operating Co., LLC	350	0.1%
Texas	349	0.1%
N & W Enterprises, INC	347	0.1%
Sohio Petroleum CO	346	0.1%
The Texas CO	344	0.1%
Sinclair Oil & Gas CO	343	0.1%
Nance Drilling CO	336	0.1%
J.m. Huber Corp	333	0.1%
Falcon Exploration, INC	333	0.1%
Tenneco Oil CO	332	0.1%
R.t. Enterprises of Kansas, INC	331	0.1%
Thunderbird Drilling, INC	329	0.1%
Trans Pacific Oil Corp	329	0.1%
L.d. Drilling, INC	328	0.1%
Triple T Oil, LLC	325	0.1%
Cities Service Oil Company	324	0.1%
Castle Resources, INC	321	0.1%
Petroleum Energy	318	0.1%
Abercrombie Drlg	312	0.1%
Martin Oil Properties	309	0.1%
Aylward Drilling CO	307	0.1%
Vickers Petroleum CO	307	0.1%
Phillips Pet	307	0.1%
Petroleum Management, INC	305	0.1%
Reese Expl	305	0.1%
Bobcat Oilfield Service, INC	301	0.1%

⚠️ What these pages are not

They are not ratings, and they are not accusations. The operator of record is the company the register names, which is not necessarily the company there today and not necessarily the one that drilled the well — wells change hands and the register lags.

In particular, a well plugged at the State’s expense means the Commission could not find a responsible party at the time it acted. That is a fact about a file. Reading it as a finding against whichever company the register happens to name would be wrong, and we do not write it that way anywhere on this site.