Compressors
   Ariel
   GSI
   KOC
   Dresser Rand
   Worthington
   Ingersoll Rand

Air Compressors
   Airdyne, Inc.

Gas Processing Equipment
   Dickson & Tryer Engineering

Fire and Safety
   Dooley Tackaberry System
   Wild Well Control

Flame Arrestors
  Enardo

Pumps
   David Brown Union Pumps
   Halliburton Pumps

Pipeline Pigging
   Oilstate Industries
   T D Williamson

Fittings, Flanges
  Kurvers

Tubular and Piping
   Siderca

Heat Transfer and Cooling Systems
   GEA Rainey Products

Heat Exchangers and Refrigeration
   Niagara Blower Company

Heaters
  Optimized Process Furnaces

Pressure Vessels, Slug Catchers, Pig Launchers
   Taylor Forge

Hot Tapping & Plugging
   T D Williamson