• A&R TRANSPORT 
• AMERADA HESS 
• BLACK WARRIOR TRANSMISSION 
• BLUE WATER CONSTRUCTORS
• CMS ENERGY
• COASTAL CORPORATION
• CONOCO
• DOW PIPELINE COMPANY
• DUKE ENERGY 
• EL PASO ENERGY
• EMBRIDGE
• ENRON PIPELINE/HOUSTON PIPELINE 
• EQUISTAR
• GPM GAS GATHERING 
• GUADALUPE BLANCO RIVER AUTHORITY
• GULF SOUTH PIPELINE
• GULF OIL COMPANY
• INTERGEN NORTH AMERICA
• KERR-MCGEE CORPORATION
• K&N ENERGY, INC.
• KOCH GATEWAY PIPELINE COMPANY
• KOCH INDUSTRIES - OFFSHORE PROJECTS
• LONE STAR GAS COMPANY
• LOUISIANA CHALK GAS GATHERING 
• MARITIMES & NORTHEAST PIPELINES 
• MATRIX GAS CORPORATION
• MERIDIAN OIL COMPANY
• MESA OPERATING LIMITED PARTNERSHIP
• MICHIGAN CONSOLIDATED GAS COMPANY
• MID LOUISIANA GAS COMPANY
• MITCHELL ENERGY 
• MOBILE GAS SERVICES CORPORATION 
• NATURAL GAS PIPELINE OF AMERICA – (FORMERLY UNITED TEXAS TRANSMISSION COMPANY) 
• NORTHWEST PIPELINE COMPANY 
• NORTHWEST NATURAL GAS COMPANY
• OCCIDENTAL PETROCHEMICALS PIPELINE COMPANY
• PANHANDLE EASTERN PIPELINE 
• PHILLIPS PETROLEUM COMPANY 
• SHELL PIPELINE CORPORATION
• SHELL E & P
• SID RICHARDSON
• SOUTHERN NATURAL GAS COMPANY/SOUTH GEORGE NATURAL GAS
• SEA ROBIN PIPELINE COMPANY 
• SOUTHWEST GAS CORPORATION
• STINGRAY PIPELINE COMPANY 
• SUN PIPELINE COMPANY
• TECO PIPELINE CORPORATION
• TEJAS POWER CORPORATION 
• TEJAS GAS CORPORATION 
• TENNESSEE GAS TRANSMISSION
• TEXAS EASTERN GAS PIPELINE COMPANY 
• TRUNKLINE GAS 
• TRANSCONTINENTAL GAS PIPELINE COMPANY 
• WESTERN GAS RESOURCES 

• CHEVRON OVERSEAS PETROLEUM / CABINDA GULF OIL COMPANY
• BROWN & ROOT BRV 
• PETROZUATA
• STATE OIL COMPANY OF SURINAME
• TEJAS GAS CORPORATION 
• ZAIRE GULF OIL/DEMOCRATIC REPUBLIC OF CONGO 

Our Company  ·  Our Family   ·  Services  ·  Information Requests  ·  Performance Projects  ·  Employment Opportunities

Physical Address:

3809 South First Street
Austin, Texas  78704

Mailing Address:

P.O. Box 911
Austin, Texas 78767

Email: onshoreqcs@onshoreqcs.com

© On & Offshore Quality Control Specialists  1999 All Rights Reserved.