AMENDED & RESTATED UNDERWRITING AGREEMENT 2,800,000 Shares Carrizo Oil & Gas, Inc. Common Stock ($.01 Par Value)Underwriting Agreement • April 13th, 2010 • Carrizo Oil & Gas Inc • Crude petroleum & natural gas • New York
Carrizo Oil & Gas, Inc., a Texas corporation (the “Issuer”), proposes to sell to Wells Fargo Securities, LLC (the “Underwriter”), an aggregate of 2,800,000 (the “Firm Securities”) shares of the Issuer’s common stock, $.01 par value per share (the “Common Stock”). The Issuer also proposes to sell to the Underwriter at the Underwriter’s option an aggregate of up to 420,000 additional shares of the Common Stock (the “Option Securities”) as set forth below. It is understood and agreed that this agreement (this “Agreement”) amends, restates and replaces in its entirety the Underwriting Agreement, dated April 8, 2010, between the parties hereto for the purchase of up to an aggregate of 2,750,000 shares of Common Stock.
