QUESTAR CORP

CUSIP: 748356102 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q2 2016
Shares 381,623 Value ($000) $9,682 Avg Close — Range —
Q1 2016
Shares 383,720 Value ($000) $9,516 Avg Close — Range —
Q4 2015
Shares 335,991 Value ($000) $6,545 Avg Close — Range —
Q3 2015
Shares 330,658 Value ($000) $6,418 Avg Close — Range —
Q2 2015
Shares 320,917 Value ($000) $6,710 Avg Close — Range —
Q1 2015
Shares 331,028 Value ($000) $7,898 Avg Close — Range —
Q4 2014
Shares 336,626 Value ($000) $8,510 Avg Close — Range —
Q3 2014
Shares 333,497 Value ($000) $7,434 Avg Close — Range —
Q2 2014
Shares 319,805 Value ($000) $7,931 Avg Close — Range —
Q1 2014
Shares 318,405 Value ($000) $7,572 Avg Close — Range —
Q4 2013
Shares 316,905 Value ($000) $7,286 Avg Close — Range —
Q3 2013
Shares 314,705 Value ($000) $7,078 Avg Close — Range —
Q2 2013
Shares 305,045 Value ($000) $7,275 Avg Close — Range —
Q1 2013
Shares 309,791 Value ($000) $7,537 Avg Close — Range —