BHP Billiton Petroleum (North America) Inc.
Related Filers (6)
BHP Billiton Petroleum Holdings (USA) Inc. (1)
PETROHAWK ENERGY CORP (1)
BHP BILLITON LTD (1)
BHP Billiton Petroleum International Pty. Ltd. (1)
BHP Billiton Petroleum Holdings LLC (1)
North America Holdings II Inc. (1)
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Ownership (2)
3
Friday, 8/26/2011
PETROHAWK ENERGY CORP: Initial statement of beneficial ownership of securities
4
Friday, 8/26/2011
PETROHAWK ENERGY CORP: Statement of changes in beneficial ownership of securities
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