| Drawworks Replacement Parts | Mud Pump-Gear and Fluid End Parts | Swivel Replacemant Parts |
| A) National | A) National | A) National |
| B) Oilwell | B) Oilwell | B) Oilwell |
| C) LTV- Continental Emsco | C) LTV- Continental Emsco | C) LTV- Continental Emsco |
| D) Gardner Denver | D) Gardner Denver | |
| E) Ideco- IRI | E) Ideco- IRI |
| Rotary Table Replacement Parts | Torque Converter Replacement Parts | Rotary and Choke & Kill Hoses |
| A) National | A) National | A) Goodall Rubber |
| B) Oilwell | B) Cooper States Rubber | |
| C) LTV-Continental Emsco | C) Coflexip | |
| D) Ideco- IRI | D) Thermoid | |
| Pup Joints and Sucker Rods |
| A) Norris/O'Bannon |
| B) Upco,Inc. |
| C) F.M.C. |
| D) Larkin |
| E) Smith |
| Mud Gate Valve Replacement Parts | Handling Tools and Replacement Parts | Injection Pumps and Controls |
| A) Oteco | A) Varco/BJ | A) Kimray |
| B) Demco | B) Dencon | B) Texsteam |
| C) Crestex | C) Custum Die & Insert | C) Western |
| D) Baker Supply Products | D) Harrisburg-Wooley | |
| E) M & W Tool |
| Centrifugal Pumps | Adjustable/Positive Chokes and Replacement Parts |
| A) Varco/Best | A) Matco-Demco |
| B) Harrisburg | B) Cooper Oil Tools- Cameron Iron Works |
| C) MCM | C) OCT |
| D) Thornhill-Craver | |
| Brake Blocks and Friction Material | Fishing and Downhole Tools | Regulators & Controls |
| A) Raymark | A) Bowen | A) Fisher |
| B) Harrisburg | B) Gotco | B) Dover |
| C) Standco | C) A-Z International | C) Foxboro |
| D) Wabco | ||
| E) Wellmark |
| Blowout Preventors and Replacement Parts | Mud Pump Fluid End Expendables |
| A) Cooper Oil Tools- Cameron Iron Works | A) Harrisburg |
| B) Hydrill | B) Oteco |
| C) Shaffer | C) Mission-Fluid King |
| D) Guiberson International | D) Pep, Inc. |
| E) Bowen | E) Southwest Oilfield Products |
| F) Durabla |
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