AGREEMENT AND PLAN OF MERGER by and among BHP BILLITON LIMITED, BHP BILLITON PETROLEUM (NORTH AMERICA) INC., NORTH AMERICA HOLDINGS II INC. and PETROHAWK ENERGY CORPORATION Dated as of July 14, 2011Merger Agreement • July 20th, 2011 • Petrohawk Energy Corp • Crude petroleum & natural gas • Delaware
Contract Type FiledJuly 20th, 2011 Company Industry JurisdictionAGREEMENT AND PLAN OF MERGER, dated as of July 14, 2011 (this “Agreement”), among BHP Billiton Limited, a corporation organized under the laws of Victoria, Australia (the “Guarantor”), BHP Billiton Petroleum (North America) Inc., a Delaware corporation and wholly owned subsidiary of the Guarantor (“Parent”), North America Holdings II Inc., a Delaware corporation and a wholly owned Subsidiary of Parent (“Merger Sub”), and Petrohawk Energy Corporation, a Delaware corporation (the “Company,” and together with Parent and Merger Sub, the “Parties”).
EXECUTIVE RETENTION AGREEMENTExecutive Retention Agreement • July 20th, 2011 • Petrohawk Energy Corp • Crude petroleum & natural gas • Texas
Contract Type FiledJuly 20th, 2011 Company Industry JurisdictionThis Executive Retention Agreement dated as of , 2011 (this “Agreement”) is made and entered into by and between the Company (defined below), and [Name] (“Executive”).
EXECUTIVE RETENTION AGREEMENTExecutive Retention Agreement • July 20th, 2011 • Petrohawk Energy Corp • Crude petroleum & natural gas • Texas
Contract Type FiledJuly 20th, 2011 Company Industry JurisdictionThis Executive Retention Agreement dated as of July 14, 2011 (this “Agreement”) is made and entered into by and between the Company (defined below), and Floyd Wilson (“Executive”).