| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 2 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2025 |
| 3 | West Plains Enterprises, Inc | Plains, KS 67869 | Oil & Gas Operator | Sep 2022 |
| 4 | Whitaker Enterpr | Oil Operator | Oct 1992 | |
| 5 | White Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jun 2025 |