| Company | PERFORATED TUBE WORKS, LLC |
| Business Number | 3593308 |
| Company | ERDLE PERFORATING COMPANY, LLC |
| Business Number | 3522124 |
| Company | CMARIEGOFF, LLC |
| Business Number | 2913366 |
| Company | CHRISTINA G. PFAU, LLC |
| Business Number | 2678843 |
| Company | CFP INDUSTRIES, LLC |
| Business Number | 2554563 |