- Airgas Specialty Gases
- Aker Kvaerner Indstrl Cnstrs
- American Central
- American Siding & Remodel
- American Warrier Gas
- Aneth Processing Plant
- Aquila Gas Pipeline
- B P Hugoton Jayhawk Gas Plant
- Bear Paw Energy Inc
- Bear Paw Energy Inc
- Bear Paw Energy Inc
- BOC
- BOC
- BP America Production Co
- Camrick Gas Co
- Cantera Gas Processing Inc
- Cantera Resources
- Cantera Resources Inc
- Cedar Line
- Chevron Texaco
- Chevron Texaco
- Chic Afrique
- Chikaskia River Gas Co
- Colorado Interstate Gas Co
- Colorado Interstate Gas Co
- Colorado Interstate Gas Co
- Conoco
- Conoco Natural Gas Products
- Copano Field Svc
- Copano Field Svc
- Crosstex Energy Svc
- Crosstex Energy Svc
- Crystatech Inc
- Cynara
- Cynara Co
- Cyrna Co Inc
- Cyrna Co Inc
- Davis Gas Processing
- Davis Gas Processing
- Davis Gas Processing
- Davis Gas Processing
- Davis Gas Processing Co
- Daylight Engineering Inc
- Devon Gas Svc
- Duke Energy Field Svc
- Duke Energy Field Svc
- Duke Energy Field Svc
- Duke Energy Field Svc
- Duke Energy Field Svc
- Duke Energy Field Svc
- Dynegy
- Dynegy
- Dynegy
- Dynegy Midstream Svc
- Dynegy Midstream Svc
- Dynegy Midstream Svc
- Dynegy Midstream Svc
- El Paso Field Svc
- El Paso Field Svc
- El Paso Production
- El Paso Productions Inc
- Elkhorn Operating Co
- Enbridge
- Enbridge
- Enbridge Energy Partners
- Enbridge Processing Plant E Tx
- Enerfin Resources
- Enerfin Resources
- Enerfin Resources
- Enerfin Resources 1 LTD
- Enerfin Resources Co
- Enerfin Resources Co
- Energex Corp
- Energy Service Investment Corp
- ETC Texas Pipeline
- Five Oaks Inc
- Gas Corp-America
- Gas Corp-America
- Golden Air LTD
- GPM Gas Corp
- Greenway Co-Op Svc Co
- Gulf Coast Fractionators
- Gulf Coast Fractionators
- Hanlon Gas Processing LTD
- Houston Fluids & Leasing
- HPL Resources Co
- Inergy Services
- Interstate Treating Inc
- Interstate Treating Inc
- K N Energy
- Kinder Gas Plant
- Kinder Morgan Inc
- Kinder Morgan Inc
- Kinder Morgan Inc
- Kinder Morgan Inc
- Kinder Morgan-Snyder Gas Plant
- Koch Midstream Processing Co
- Lantana Midstream I LTD
- Lantana Midstream I LTD
- Longview Gas Co
- Lumen Energy
- Mark West Hydrocarbon Inc
- Mark West Hydrocarbon Inc
- Mark West Michigan INC
- Mcleod Gas Gathering & Prcssng
- Mivida
- MKP Production Co
- Mustang Gas Products
- Mustang Gas Products LLC
- National Energy Group Inc
- National Energy Group Inc
- Natural Gas Operations
- NGC Energy Resources
- Nitrotec Energy Lab
- Noram Gas Transmission
- Nustar
- Occidental Permium
- Octagon Resources Inc
- Octagon Resources Inc
- Octagon Resources Inc
- Octagon Resuorces Inc
- Oneok Field Svc
- Oneok Field Svc Inc
- ONEOK Inc
- ONEOK Westex Transmissions
- Petro-Hunt
- Petro-HUNT LLC-Little Knife
- Phoenix Energy Inc
- Pioneer Exploration LTD
- Pioneer Exploration LTD
- Pioneer Natural Resources USA
- Praxair Distribution Inc
- Praxair Inc
- PVR
- Quinton Rental & Repair
- Ranger Warehouse
- Regency Gas
- Regency Gas Svc
- Regency Gas Svc LLC
- Regency Gas Svc LLC
- Regency Gas Svc LLC
- Scissor Tail Energy
- Scissortail Energy
- Sid Richardson Energy Svs
- Sid Richardson Gas Pipeline C
- Sid Richardson Gasoline
- Sid Richardson Gasoline Co
- Sid Richardson Gasoline Co
- Sonterra Energy
- Stiles Gas Plant
- Sulphur River Gathering
- TAG Petroleum Inc
- Targa Resources
- Texaco E & P Inc
- Texas Eastern Transmission
- Timberland Gathering & Process
- Trenton Gas Processing
- TXU
- Warren NGL Inc
- Warren Petroleum
- Warren Petroleum
- Western Gas Resources Inc
- Western Gas Resources Inc
- Western Gas Resources Inc
- Western Gas Resources Inc
