Wexpro Develops and produces cost-of-service gas for utility affiliate Questar Gas Wexpro develops and produces gas and oil on certain properties for affiliate Questar Gas under the terms of a long-standing comprehensive agreement with the states of Utah and Wyoming. Wexpro delivers natural gas production to Questar Gas at a price equal to Wexpro's cost of service. This price is typically lower than Questar Gas pays for gas purchased from other producers. Wexpro continues to identify additional drilling opportunities.