Laredo Petroleum Prices 16M Share Offering at $23.75/Share

Laredo Petroleum Holdings, Inc., a Delaware corporation

("Laredo" or "the Company"), today announced the pricing of an underwritten public offering of 16,000,000 shares of its common stock at a public offering price of $23.75 per share. The Company is offering 13,000,000 shares of common stock, and certain affiliates of Warburg Pincus LLC and members of the Company's management (collectively, the "selling stockholders") are offering an additional 3,000,000 shares of common stock. Certain of the selling stockholders have granted the underwriters a 30-day option to purchase up to 2,400,000 additional shares at the public offering price, less underwriting discounts and commissions. The offering is expected to close on or about August 19, 2013, subject to customary closing conditions. Upon closing of the offering, affiliates of Warburg Pincus LLC will own approximately 57% of the Company's shares of common stock (assuming no exercise of the underwriters' option to purchase additional shares). The Company intends to use the net proceeds from the sale of the shares of common stock offered by it to implement the Company's planned exploration and development activities, accelerate its capital program (as appropriate), and for general corporate purposes. The