QUESTAR CORP

CUSIP: 748356102 Class: COM

E. Ohman J:or Asset Management AB's Holding History (CIK: 0002009396)

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

Q2 2010
Shares 2,500 Value ($000) $114 Avg Close — Range —
Q1 2010
Shares 2,500 Value ($000) $108 Avg Close — Range —
Q4 2009
Shares 2,500 Value ($000) $104 Avg Close — Range —
Q3 2009
Shares 3,200 Value ($000) $120 Avg Close — Range —
Q2 2009
Shares 3,200 Value ($000) $100 Avg Close — Range —
Q4 2008
Shares 3,200 Value ($000) $105 Avg Close — Range —
Q3 2008
Shares 3,200 Value ($000) $131 Avg Close — Range —
Q2 2008
Shares 3,200 Value ($000) $227 Avg Close — Range —
Q1 2008
Shares 1,600 Value ($000) $90 Avg Close — Range —
Q4 2007
Shares 1,600 Value ($000) $87 Avg Close — Range —
Q3 2007
Shares 800 Value ($000) $42 Avg Close — Range —
Q2 2007
Shares 800 Value ($000) $42 Avg Close — Range —
Q1 2007
Shares 400 Value ($000) $36 Avg Close — Range —
Q4 2006
Shares 400 Value ($000) $33 Avg Close — Range —