Exhibit 1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing of a Statement on Schedule 13D (including any and all amendments thereto) with respect to the shares of Common Stock, $0.01 par value, of HKN Inc. and further agree that this Joint Filing Agreement be included as an Exhibit thereto. In addition, each party to this Agreementexpressly authorizes each other party to this Agreement to file on its behalf any and all amendments to such Statement. Dated: May 19, 2011 Brean Murray Carret Group, Inc. By: Vicali Services (BVI) Inc. Its Director By: Name: Susan V. Demers Title: Director AEF Finance Ltd. By: Vicali Services (BVI) Inc. Its Director By: Name: Susan V. Demers Title: Director Lyford Investments Enterprises Ltd. By: Vicali Services (BVI) Inc. Its Director By: Name: Susan V. Demers Title: Director UniPureEnergy Acquisition Ltd. By: Vicali Services (BVI) Inc. Its Director By: Name: Susan V. Demers Title: Director Quadrant Management, Inc. Its Director By: Name: Marco Vega Title: CFO Phyllis Quasha Page 12