Natural Gas Pipelines
 

• Alliance Pipeline

• AlintaGas

• ATCO Pipelines

• BP

• Duke Energy

• El Paso Corporation

• Gaz de France

• Iroquois Gas Pipeline

• Kinder Morgan

• PEMEX

• Petrobras

• Sui Southern Gas Company

• TransCanada Pipelines

• Transportadora Brasileira Gasoduto

• Transportadora de Gas del Norte

• Williams