Questar Corporation was a natural gas public utility based in Salt Lake City, Utah.

[3] During the Great Depression, its stock price fell from $46/share in September 1929 to $3/share in 1932 as most families could not afford natural gas.

[2] In 1935, the shareholders voted to reorganize the company, merging it with its subsidiaries and moving its headquarters from Pittsburgh to Salt Lake City.

[8] It also formed FuelMaker, a joint venture to market a new device that would allow natural gas vehicles to be refueled at home.

[14] In April 2003, D. N. "Nick" Rose, president and chief executive officer of Questar, retired and was replaced by Alan K.

[19] In December 2015, Tesoro Logistics LP acquired its natural-gas pipeline and processing business for $2.5 billion in cash.

[23][24] In June 2024, nine months after a deal was announced,[25] Enbridge completed the purchase of Questar Gas for $4.3 billion.