Rockies Express Pipeline Project

Rockies Express Pipeline LLC

Rockies Express Pipeline Project


  • Front-End Engineering and Design (FEED)
  • Detailed Engineering and Design
  • Procurement
  • Project Management
  • Construction Management Support Services
  • FERC Certification Support
  • Engineering Support During Construction


  • 1,679 miles, 42-inch natural gas pipeline system
  • Project developed in three segments: REX-Entrega, REX-West and REX-East
  • REX-Entrega - 328 mile natural gas pipeline
  • REX-West - 713 mile natural gas pipeline
  • REX-East - 638 mile natural gas pipeline
  • Meter stations, mainline valves, interconnects, launchers and/ or receivers
  • 28 HDDs, ranging in length from 1,500 to 3,900 feet

The Rockies Express Pipeline is the largest pipeline project constructed in North America in the last 20 years. Nicknamed "REX", this 42-inch diameter natural gas pipeline system originates in Colorado and stretches 1,679 miles east to Ohio. REX traverses eight states and transports 1.8 billion cubic feet per day of natural gas to east coast markets. This transcontinental pipeline system includes hundreds of railroad, highway and road crossings and numerous meter stations, mainline valves, interconnections, and launcher-receiver facilities. Kinder Morgan Energy Partners first contracted Gulf to provide front end engineering and design services ("FEED") which Gulf performed to ready the pipeline for Federal Energy Regulatory Commission sanction. Following FERC approval of this multi-billion dollar project, Gulf continued its services to Kinder Morgan, project managing a large, multi-disciplined team of engineers, designers and procurement specialists to detail engineer, design, specify and requisition equipment and materials for construction of the pipeline. When pipeline construction began, Gulf deployed hundreds of technical and construction specialists to provide field engineering and inspection services throughout the construction of the project.


Gulf Interstate Engineering
16010 Barkers Point Lane | Suite 600
Houston, Texas USA 77079-9000


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Our Vision

Gulf Interstate Engineering – Our Vision To be the best full-service engineering company in the pipeline industry.

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