| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | K C Development | Oil & Gas Operator | Dec 1996 | |
| 2 | K-Bar Oil LLC | McPherson, KS 67460 | Oil Operator | Jun 2025 |
| 3 | K.C. Development, Inc. | Marion, KS 66861 | Oil Operator | Mar 2009 |
| 4 | Kansas Crude Oil | Oil Operator | Dec 1987 | |
| 5 | Kelley Edgar Oil & Gas Operations | Gas Operator | Nov 2015 | |
| 6 | Kjellin, Charles Willard (Deceased) | Marion, KS 66861 | Oil & Gas Operator | Oct 2013 |
| 7 | Klenda, John | Marion, KS 66861 | Gas Operator | Dec 2023 |
| 8 | Kot, Inc. | Lost Springs, KS 66859 | Oil Operator | Aug 2016 |
| 9 | Kremeier Prod & Operating | Oil & Gas Operator | Jan 2010 | |
| 10 | Krier Oil Oper - | Oil Operator | Sep 1995 |