ALLEGHENY ENERGY INC

CUSIP: 017361106 Class: COMMON STOCK

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

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

Q4 2010
Shares 2,600 Value ($000) $63 Avg Close — Range —
Q3 2010
Shares 2,600 Value ($000) $64 Avg Close — Range —
Q2 2010
Shares 2,600 Value ($000) $54 Avg Close — Range —
Q1 2010
Shares 2,600 Value ($000) $60 Avg Close — Range —
Q4 2009
Shares 2,600 Value ($000) $61 Avg Close — Range —
Q3 2009
Shares 2,600 Value ($000) $69 Avg Close — Range —
Q2 2009
Shares 2,600 Value ($000) $67 Avg Close — Range —
Q4 2008
Shares 2,600 Value ($000) $88 Avg Close — Range —
Q3 2008
Shares 2,600 Value ($000) $96 Avg Close — Range —
Q2 2008
Shares 2,600 Value ($000) $130 Avg Close — Range —
Q1 2008
Shares 1,000 Value ($000) $51 Avg Close — Range —
Q4 2007
Shares 1,000 Value ($000) $64 Avg Close — Range —