QUESTAR CORP

CUSIP: 748356102 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q2 2016
Shares 70,371 Value ($000) $1,785 Avg Close — Range —
Q1 2016
Shares 69,871 Value ($000) $1,733 Avg Close — Range —
Q4 2015
Shares 69,171 Value ($000) $1,347 Avg Close — Range —
Q3 2015
Shares 80,071 Value ($000) $1,554 Avg Close — Range —
Q2 2015
Shares 80,071 Value ($000) $1,674 Avg Close — Range —
Q1 2015
Shares 79,571 Value ($000) $1,899 Avg Close — Range —
Q4 2014
Shares 83,371 Value ($000) $2,108 Avg Close — Range —
Q3 2014
Shares 83,171 Value ($000) $1,854 Avg Close — Range —
Q2 2014
Shares 82,571 Value ($000) $2,048 Avg Close — Range —
Q1 2014
Shares 82,471 Value ($000) $1,961 Avg Close — Range —
Q4 2013
Shares 81,971 Value ($000) $1,885 Avg Close — Range —
Q3 2013
Shares 81,571 Value ($000) $1,835 Avg Close — Range —
Q2 2013
Shares 80,571 Value ($000) $1,922 Avg Close — Range —