Dominion Resources, Inc. (NYSE: D) and Questar Corporation (NYSE: STR) announced today that the Public Service Commission of Utah has approved their merger, subject to terms and conditions of an agreed settlement stipulation, thereby moving the proposed combination one step closer to finalization. With the PSC of Utah's action, the final regulatory approval needed to complete the merger is pending with the Wyoming Public Service Commission.

The proposed merger would create an integrated energy company serving about 2.5 million electric utility customers and 2.3 million gas utility customers in seven states. The combined company also would operate more than 15,500 miles of natural gas transmission, gathering and storage pipelines, one of the nation's largest natural gas storage systems, and approximately 25,700 megawatts of electric generation.

In February, the Federal Trade Commission granted early termination of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act with respect to the transaction. In May, Questar's shareholders signified their overwhelming approval.

The companies expect the transaction to close in 2016 shortly after final regulatory approval is received.

About Dominion Dominion is one of the nation's largest producers and transporters of energy, with a portfolio of approximately 25,700 megawatts of generation, 12,200 miles of natural gas transmission, gathering and storage pipeline, and 6,500 miles of electric transmission lines. Dominion operates one of the nation's largest natural gas storage systems with 933 billion cubic feet of storage capacity and serves more than 5 million utility and retail energy customers in 14 states. For more information about Dominion, visit the company's website at www.dom.com.

About Questar Questar Corp. is a Rockies-based integrated natural gas company operating through three principal subsidiaries: Questar Gas provides retail natural gas distribution in Utah, Wyoming and Idaho; Wexpro develops and produces natural gas on behalf of Questar Gas; and Questar Pipeline operates interstate natural gas pipelines and storage facilities in the Western U.S. For more information, visit Questar's website at: www.questar.com.