Attached files
| file | filename |
|---|---|
| EX-12 - EXHIBIT 12. - QUESTAR CORP | str10k4q2009ex12.htm |
| EX-32 - EXHIBIT 32. - QUESTAR CORP | str10k4q2009ex32.htm |
| EX-23 - EXHIBIT 23.2. - QUESTAR CORP | str10k4q2009ex232.htm |
| EX-31 - EXHIBIT 31.1. - QUESTAR CORP | str10k4q2009ex311.htm |
| EX-23 - EXHIBIT 23.3. - QUESTAR CORP | str10k4q2009ex233.htm |
| EX-31 - EXHIBIT 31.2. - QUESTAR CORP | str10k4q2009ex312.htm |
| EX-23 - EXHIBIT 23.1. - QUESTAR CORP | str10k4q2009ex231.htm |
| EX-24 - EXHIBIT 24. - QUESTAR CORP | str10k4q2009ex24poa.htm |
| EXCEL - IDEA: XBRL DOCUMENT - QUESTAR CORP | Financial_Report.xls |
| 10-K - 10-K - QUESTAR CORP | str10k4q2009.htm |
Exhibit 21.
SUBSIDIARY INFORMATION
Registrant Questar Corporation has the following subsidiaries: Questar Market Resources, Inc., Questar Pipeline Company and Questar Gas Company. Each of these companies is a Utah corporation.
Questar Market Resources has the following subsidiaries: Wexpro Company, Questar Exploration and Production Company, Questar Energy Trading Company, Questar Gas Management Company and Questar Employee Services, Inc. Questar Exploration and Production Company is a Texas corporation. The other listed companies are incorporated in Utah.
Questar Exploration and Production Company has two wholly owned subsidiaries: Questar URC Company, a Delaware corporation and Rippy Energy, Inc., a Texas corporation. Questar Exploration and Production Company also does business under the names Universal Resources Corporation, Questar Energy Company and URC Corporation
Questar Energy Trading Company has two subsidiaries: URC Canyon Creek Compression Company; and Questar Oil and Gas Company. Both are Utah corporations.
Questar Pipeline Company has four subsidiaries: Questar Southern Trails Company, Questar Transportation Services Company, Questar Overthrust Pipeline Company and Questar InfoComm, Inc.; all four are Utah corporations. Questar Overthrust Pipeline Company does business as Overthrust Pipeline Company.
Questar InfoComm, Inc. has three subsidiaries: Questar Energy Services, Inc., Questar Project Employee Company, and Questar Applied Technology Services, Inc. All three are Utah corporations.