| Date Filed | Type | Description |
| 02/14/2017 |
SC 13G/A
| PARNASSUS INVESTMENTS reports a 0% stake in Questar Corp. |
| 09/29/2016 |
15-12B
| Form 15-12B - Securities registration termination [Section 12(b)] |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/20/2016 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
| 09/19/2016 |
4
| Wray Julie A (Corporate Secretary & GM of HR) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| WILLIAMSON BRUCE A (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Wagstaff Craig C. (EVP & President) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Teuscher Patrick D (VP Audit & Chief Risk Officer) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| SIMMONS HARRIS H (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Rasmussen Brady B (EVP and COO) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Ranich Rebecca (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| MCMANUS J T (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Jibson Ron W (President & CEO) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| HELMS CHRISTOPHER A (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Hadlock Kevin W. (CFO) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Dunn Micheal G. (EVP & President, QPC) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| DOWNES LAURENCE M (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Curtis David M (VP & Controller) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| Bell Colleen Larkin (VP & General Counsel) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
4
| BECK TERESA (Director) has filed a Form 4 on QUESTAR CORP |
| 09/19/2016 |
25-NSE
| Form 25-NSE - Notification filed by national security exchange to report the removal from listing and registration of matured, redeemed or retired securities |
| 09/16/2016 |
RW
| Form RW - Registration Withdrawal Request |
| 09/16/2016 |
8-K
| Quarterly results |
| 09/14/2016 |
4
| WILLIAMSON BRUCE A (Director) has filed a Form 4 on QUESTAR CORP |
|