LAREDO PETROLEUM HOLDINGS, INC. 12,500,000 Shares of Common Stock Underwriting AgreementLaredo Petroleum • October 11th, 2012 • Laredo Petroleum Holdings, Inc. • Crude petroleum & natural gas • New York
Certain stockholders named in Schedule 2 hereto (the “Selling Stockholders”) of Laredo Petroleum Holdings, Inc., a Delaware corporation (the “Company”), propose to severally sell to the several Underwriters listed in Schedule 1 hereto (the “Underwriters”), for whom you are acting as representatives (collectively, the “Representatives”), an aggregate of 12,500,000 shares of common stock, par value $0.01 per share (the “Common Stock”), of the Company (the “Underwritten Shares”) and, at the option of the Underwriters, up to an additional 1,875,000 shares of Common Stock of the Company (the “Option Shares”). The Underwritten Shares and the Option Shares are herein referred to as the “Shares.” The shares of Common Stock to be outstanding after giving effect to the sale of the Shares are referred to herein as the “Stock.”
