QUESTAR CORP

CUSIP: 748356102 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q2 2016
Shares 129,272 Value ($000) $3,280 Avg Close — Range —
Q1 2016
Shares 137,072 Value ($000) $3,399 Avg Close — Range —
Q4 2015
Shares 127,282 Value ($000) $2,479 Avg Close — Range —
Q3 2015
Shares 131,152 Value ($000) $2,546 Avg Close — Range —
Q2 2015
Shares 134,832 Value ($000) $2,819 Avg Close — Range —
Q1 2015
Shares 132,992 Value ($000) $3,173 Avg Close — Range —
Q4 2014
Shares 136,632 Value ($000) $3,454 Avg Close — Range —
Q3 2014
Shares 128,832 Value ($000) $2,872 Avg Close — Range —
Q2 2014
Shares 127,962 Value ($000) $3,173 Avg Close — Range —
Q1 2014
Shares 125,132 Value ($000) $2,976 Avg Close — Range —
Q4 2013
Shares 124,892 Value ($000) $2,871 Avg Close — Range —
Q3 2013
Shares 128,712 Value ($000) $2,895 Avg Close — Range —
Q2 2013
Shares 138,692 Value ($000) $3,308 Avg Close — Range —