Corporate Profile

Questar Corporation is a natural gas-focused energy company with four major lines of business conducted through three principal subsidiaries — Questar Market Resources (gas and oil exploration, development and production; gas gathering and processing); Questar Pipeline (interstate gas transportation and storage); and Questar Gas (retail gas distribution).

• Questar Exploration and Production (Questar E&P) acquires, explores for, develops and produces gas and oil in two core areas — the Rocky Mountain region of Wyoming, Utah and Colorado and the Midcontinent region of Oklahoma, Texas and Louisiana.
• Wexpro manages, develops and produces cost-of-service reserves for affiliated company Questar Gas.
  
• Questar Gas Management provides midstream field services, including gas gathering and processing, primarily in the Rockies.
  
• Questar Energy Trading sells Market Resources' equity and third-party gas and oil in the western U.S., provides risk-management services and operates a natural gas storage facility in the Rockies.

QUESTAR PIPELINE
Questar Pipeline is an interstate pipeline company that transports natural gas in Utah, Wyoming and Colorado and operates gas-storage facilities in Utah and Wyoming. Questar Pipeline is regulated by the Federal Energy Regulatory Commission. Questar Pipeline also owns and operates the Questar Southern Trails Pipeline, which extends from the Four Corners area to Long Beach, California and the Questar Overthrust Pipeline in southwestern Wyoming.