QUESTAR CORP

CUSIP: 748356102 Class: COM

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q2 2014

Shares 955,500 Value ($000) $23,696 Avg Close — Range —

Q1 2014

Shares 955,500 Value ($000) $22,721,790 Avg Close — Range —

Q4 2013

Shares 955,500 Value ($000) $21,966,945 Avg Close — Range —

Q3 2013

Shares 941,170 Value ($000) $21,166,913 Avg Close — Range —

Q2 2013

Shares 549,700 Value ($000) $13,110,345 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	955,500	$23,696	—	—
Q1 2014	955,500	$22,721,790	—	—
Q4 2013	955,500	$21,966,945	—	—
Q3 2013	941,170	$21,166,913	—	—
Q2 2013	549,700	$13,110,345	—	—