PETROHAWK ENERGY CORP

CUSIP: 716495106 Class: COM

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

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

Q2 2011
Shares 8,500 Value ($000) $210 Avg Close — Range —
Q1 2011
Shares 4,800 Value ($000) $118 Avg Close — Range —
Q4 2010
Shares 4,800 Value ($000) $88 Avg Close — Range —
Q3 2010
Shares 4,800 Value ($000) $77 Avg Close — Range —
Q2 2010
Shares 4,800 Value ($000) $81 Avg Close — Range —
Q1 2010
Shares 4,800 Value ($000) $97 Avg Close — Range —
Q4 2009
Shares 4,800 Value ($000) $115 Avg Close — Range —
Q3 2009
Shares 4,800 Value ($000) $116 Avg Close — Range —
Q2 2009
Shares 4,800 Value ($000) $107 Avg Close — Range —
Q4 2008
Shares 4,800 Value ($000) $75 Avg Close — Range —