| 1 | Foremost Industries LP | | USA |
| 2 | Schoeller-Bleckmann Sales Co. | | USA |
| 3 | Underground Tools Inc. | | USA |
| 4 | Matrix Drilling Products | | USA |
| 5 | Gill Rock Drill Co. Inc. | | USA |
| 6 | Tubular King USA | | USA |
| 7 | Houston Downhole Drilling Tools Inc | | USA |
| 8 | Texas Steel Conversion Inc. | | USA |
| 9 | KO Supply LLC | | USA |
| 10 | Premier Drill Products LLC | | USA |
| 11 | ShawCor | | USA |
| 12 | Osmco Industries | | USA |
| 13 | W-N Apache Corp. | | USA |
| 14 | TTGM International (USA) Inc. | | USA |
| 15 | SAE Manufacturing Specialties Corp | | USA |
| 16 | Southeast Texas Industries Inc. | | USA |
| 17 | Sunnda Corporation | | USA |
| 18 | Arntzen Pipe | | USA |
| 19 | North Houston Machine Inc. | | USA |
| 20 | JA Oilfield Manufacturing Inc. | | USA |
| 21 | JM Eagle | | USA |
| 22 | Texas Nafta Industries Inc | | USA |
| 23 | Drill Cool Systems Inc. | | USA |
| 24 | Hardbanding Solutions by Postle Industries | | USA |
| 25 | Universal HDD | | USA |
| 26 | U.S. Steel Corp. | | USA |
| 27 | Arconic Fastening Systems | | USA |
| 28 | Petromaterials USA Inc. | | USA |
| 29 | Superior Drillpipe Manufacturing Inc. | | USA |
| 30 | Stewart Tubular Products Inc | | USA |
| 31 | American Completion Tools Inc. | | USA |
| 32 | Axon Energy Products | | USA |
| 33 | Steven M. Hain Co. Inc. | | USA |
| 34 | GreenMount Corp. | | USA |
| 35 | ABT Inc. | | USA |
| 36 | Copeland Supply Co. Inc. | | USA |
| 37 | TPCO Enterprise Inc. | | USA |
| 38 | Jindal Saw Limited | | USA |
| 39 | TSC Drill Pipe | | USA |
