Williams Field Services, 4980 State Highway 374, Green River, WY 82935, US

Questar Gas provides retail gas distribution services to more than 700,000 customers throughout Utah, southwestern Wyoming and southeastern Idaho. The company is regulated by the Public Service Commission of Utah and the Wyoming Public Service Commission. It is also a natural gas utility and provides natural gases for homes, businesses and vehicles. Questar Gas offers natural gases for home appliances, including clothes dryers, furnaces, water and patio heaters and grills. In addition, the company provides a water heater savings calculator. It also has more than 550 natural gas vehicles and over 90 natural gas fueling stations. The company offers commercial and industrial services, as well as provides business solutions. It also offers an online brochure for customers. Questar Gas maintains a location in Rock Springs, Wyo.