| Actuator:Valves | Casing & Tubing | Compound | Fiberglass Pipe | Metalfar |
| Apollo-Compactorque | CF & I Steel | Baker | A.O.Smith | National Flange |
| Bettis | Ipsco | Bakerline | Files | Trinity Fitting |
| Cameron | Lone Star | Bestolife | Star Fiberglass | Flanges: Stainless Steel |
| EIM | Mannesman | Jet-Lube | Nicholson | Bebitz |
| FMC Corp. | Newport Steel | MAjestic Lubricating | Filters | |
| Hytork | Siderca | Oil Center Research | Crall Products | Gerlin |
| RCS | TCA | Corp. (WECO) | Filter Corp. | Ideal |
| Rotohammer | United States Steel | Rector Seal | Filtercor | Kofco |
| Unitorq | Catheads | South Coast | Fram | Metalfar |
| Anchors | Cchain-Roller | Anvil International | jonell | Texas Metal Works |
| Harbison Fischer | Diamond Chain | Capitol Manufacturing | Nowata | U.S.Flange |
| Hasco | G-H Foster | Coupling: Sleeve | Peco | Western |
| National Production | Linkbelt | Dresser | WIX | Gauges |
| Norris/Div.Dover | Retsco | Skinner Brothers | Fittings | Ashcroft |
| Batteries | Chain:Steel | Smith-Blair | APP | Conbraco |
| Duracell | American Chain | Cups:Pipeline Scraper | Alloy Stainless | Duro |
| Eveready | Crosby | Gates Rubber Co. | Anderson Brass | Haenni |
| Ray-O-Vac | Chokes | Oil States Rubber Co. | Anvil International | Industry Valve |
| Belts | Best Industries, Inc. | Cups:Swab | Awaji Sangyo(ASK) | Kenco |
| ACCo | McAfee | Guiberson Div. | Booney Forge | Marsh Instrument |
| Lebus | McDonald | Oil States Rubber Co. | Camco | No-Shock |
| Blocks | Clamps:Hose | Petro Rubber | Capitol | Penberthy |
| Baash Ross | APG | Skinner Brothers | CAP Products | Retsco |
| Harrisburg, Inc. | Dayco | Desanders & De-Silters | Custom Alloy | Trerice |
| Standco Industries | Dixon Valve | Brandt Company | Dayco | WIKA |
| McKissick | Gates Rubber Co. | Harrisburg,Inc. | Flowline | Gaskets |
| Bolts | PT Coupling Co. | Hutchison-Hayes | Gerlin | Flexitallic GAsket |
| Dan-Loc | Weatherhead | Retsco | Imperial | Garlock,Inc. |
| Lone Star screw | Clamps:Pipe | Swaco/Dresser | Imperial-Eastman | HMS |
| Brushs | M.B.SKinner | Industries | Let-Lok | K & W Gasket |
| Brushes-Wire | Powerseal Pipeline | Dies | MEGA | Lamons |
| Magnolia(ORS) | Remco | Baash Ross | Merit Brass | Leader Gasket |
| ORS | Skinner Brothers | Demco,Inc. | Parker CPI/ALOK | Parker Seals |
| Osborn Manufacturing | Smith-BLair | Hughes,Inc. | Parker-Hannifin | Utex Industries,Inc. |
| Rubber Set | Clamps:Rod | Retsco | Penn Machine | Guides |
| Cans | Johnson-Fagg | Varco International | Schulz | Central Plastics |
| D.L.Goldenrod | Norris | Drilling Equipment | Taylor Forge | Guideco |
| Eagle(ORS) | R & M Energy | Baash Ross | Trinity | Oil States Rubber co. |
| Eagle Manufacturing | Skinner Brothers | Dresser-Ideco | Tube Forgings | Oteco Equipment Co. |
| Gott/Rubbermaid | Clips:Wire Rope | Gardner-Denver | Tube-Line | Patco |
| Igloo Corporation | ACCO | hughes,Inc. | Vallourec/Interfit | R & M Energy Systems |
| Justrite Manufacturing | Closure-Pipeline | Vargo International | Victaulic Co. | Heads: |
| Plews | Hasco | Wolley Tool | Vogt | Casing & Tubing |
| Hose,continued | KF Industries | Elevators: | WFI International | Gulfco Industries,Inc. |
| Midwest Hose | MCKissick | Sucker Rod | Flanges:Forged | OCT/Division FMC Corp. |
| Parker Hannifin | Oilwell | Crall Products | Bebitz | R & M Energy Systems |
| Weatherhead | OCT/Division FMC | Norris | Boltex Inc. | Wellhead,Inc. |
| Injector:Chemical | R & M Energy | Sundyne/Sunstrand | Flanges,Inc. | Hose |
| Arrow Specialty | Davis | Vertiflo | Kofco | Copper State Rubber |
| Richart Distributing | Douglas | Warman | Seats:Slush Pump | Gates Rubber Company |
| TXT Texsteam | Ipsco | Pumps:Positive Displacement | Harrisburg | Valves:Butterfly |
| Vega Manufacturing | Kaiser | Abel Pumps | Shakers | Apollo |
| Western Chemical | LaClede | Arrow Engine | Brandt | Centerline |
| Insulation kits | Lone Star Steel | Bear Equipment | Hutchison Hayes | Cameron |
| Advanced Products | LTV | Bowie Pumps | Line Belt | Demco |
| Central Plastics Co. | Mannesman | Don-Nan | Retsco | Flowseal |
| PSI Products | NAPA | Flomore Pumps | Sheaves | Hale Manufacturing |
| Joints:Pup | Newport | Gardner-Denver | Dayco | KF Industries |
| Aztec | North Star Steel | G-D Jeeting Systern | Electron | Milwaukee |
| Texas Pipe Threaders | Northwest Pipe | Kamat | Gates | Victaulic |
| Texas pup | Okaya | LMI Power | Tanks | Wecco |
| UPCO | Quanex | McFarland | Challenger Tank | Valves:Check |
| Joints:Swivel | Sandvik | MTH Pumps | Permian Tank | Arrow Valve |
| BEst Swivel Joints | SAW Pipe | National Oilwell | United Fiberglass | Balon |
| Chicksan/FMC | Sawhill | Netzsch | White Tank | Marlon Mission |
| Motors | Schoeller-Bleckman | Oilwell Hydraulic | Tape | Texsteam Inc. |
| ABB | Sharon | Peroni Pompe | 3M | Tom Wheatley |
| Baldor Electric | Stupp Corporation | Raven Pumps | Polyken | Proquip |
| Brook Crompton | Sumitomo | Roper Pumps | Royston | Wheatley |
| Franklin Electric | TAD-USA | Texsteam Inc. | Thermometers | Valves:Gate |
| General Electric | Tex-Tube,Inc. | Union Pumps | American Valve | Cameron |
| Marathon | Tubacex | Warren Rupp | Ashcroft | Oteco |
| Teco-Westinghouse | United States Steel | Wheatlet/GAso | Marsh Instrument | Valves:Needle |
| Toshiba Electric | Vallourec | Wirth | Trerice | Anderson-Greenwood |
| Mud:Mixers | Webco | Rags:Wiping | Wika | Balon |
| Brandt Company | Wheatland Tube | Kamen Wiping | Tubing | Hamlet |
| Hutchiscon-Hayes | Pistona:Slush Plump | Kimberly Clark | American | Marsh |
| Retsco | Gardner-Denver | Southern Waste | Brutco | PGI international |
| Nipples | Harrisburg,Inc. | Rods:Polish | Gibson | Valves:Relief |
| Anvil International | Oteco | Hasco | Greenville | Baird Manufacturing |
| Camco | Reed American | Norris | Handy & Harman | Cameron |
| Harbison-Fischer | Southwest | trico | Imperial/Stride | Crossby Gauge |
| Merit Brass | Plugs:Bull | Rods:Slush Pump | Sandvik | Oteco |
| Westbrook | Anvil International | HArrisburg | Schoeller-Bleckman | Taylor |
| Pipe:Standard & Line | Capitol Manufacturing | Southwest | Webco | Valves:Stainless |
| American Steel Pipe Co. | Pumps:Centrifugal | Rods:Sucker | Unions | Aloyco |
| Avesta Sheffield | American Turbine | Norris | Anvil Int’l | Cameron |
| Bellville Tube | Barnes/crown | UPCO | Boltex | Trinity |
| Berg | Crane Deming | Rope:Wire | Kemper | Velan |
| Bristol | Discflo Pumps | Bethlehem Wire | Thornhill-Craver | Warren |
| CF & I Steel Corp. | Double Life Corp. | Paulsen Wire Rope | Weco | |
| CSI | Durco | Rochester Wire Rope | Valves:Ball | |
| Dalmine | Gorman Rupp | Union Wire Rope | Apollo | |
| Damascus | Goulds Pumps | Rubbers:Pipeline Scraper | Balon Corp | |
| Griswold | Gates Rubber | Cameron | ||
| HAzleton | Girard Industries | MCF | ||
| J-Line | Nutron | |||
| Kem-Tron | PBV | |||
| Paco | Velan | |||
| Victaulic | ||||
| Ruhr Pumpen | Worcester |
