QUESTAR CORP

CUSIP: 748356102 Class: COM

DUFF & PHELPS INVESTMENT MANAGEMENT CO's Holding History (CIK: 0000765443)

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

Q4 2015
Shares 1,900,000 Value ($000) $37,012 Avg Close — Range —
Q3 2015
Shares 1,994,535 Value ($000) $38,714 Avg Close — Range —
Q2 2015
Shares 2,003,250 Value ($000) $41,888 Avg Close — Range —
Q1 2015
Shares 2,001,375 Value ($000) $47,753 Avg Close — Range —
Q4 2014
Shares 1,992,985 Value ($000) $50,383 Avg Close — Range —
Q3 2014
Shares 1,985,650 Value ($000) $44,260 Avg Close — Range —
Q2 2014
Shares 1,985,940 Value ($000) $49,251 Avg Close — Range —
Q1 2014
Shares 1,986,635 Value ($000) $47,242 Avg Close — Range —
Q4 2013
Shares 1,989,710 Value ($000) $45,743 Avg Close — Range —
Q3 2013
Shares 1,993,890 Value ($000) $44,843 Avg Close — Range —
Q2 2013
Shares 1,992,280 Value ($000) $47,516 Avg Close — Range —