On December 31, 2013, Laredo Petroleum, Inc. entered into a Fourth Amended and Restated Credit Agreement (the 'Amended and Restated Credit Agreement') among the company, as borrower, Wells Fargo Bank, N.A. as administrative agent and the other financial institutions signatory thereto. The Amended and Restated Credit Agreement replaces the company's Third Amended and Restated Credit Agreement (as amended, the 'Former Credit Agreement') dated July 1, 2011, in its entirety, and was entered into in connection with the company's previously disclosed internal corporate reorganization (the 'Corporate Reorganization') that merged its wholly-owned subsidiary known as Laredo Petroleum, Inc. (the 'Subsidiary') with and into the company, with the company surviving the merger. On December 31, 2013, the company also entered into a Fourth Supplemental Indenture among the company, Laredo Midstream Services, LLC ('Laredo Midstream'), and Wells Fargo Bank, National Association, as trustee (the 'Trustee') (the 'Fourth Supplemental Indenture'), to the Indenture dated as of January 20, 2011 among the Subsidiary, the company, the other guarantors party thereto and the Trustee, as supplemented by that certain Supplemental Indenture, dated as of July 1, 2011, among the Subsidiary, the company, the other guarantors party thereto and the Trustee, that certain Second Supplemental Indenture, dated as of December 19, 2011, among the Subsidiary, the company, the other guarantors party thereto and the Trustee, and that certain Third Supplemental Indenture, dated as of December 19, 2011, among the Subsidiary, the company, the other guarantors party thereto and the Trustee (as so supplemented, the '2011 Indenture') governing the Subsidiary's 9½% Notes due 2019 in the aggregate principal amount of $550,000,000 (the '2019 Notes').

The Fourth Supplemental Indenture was entered into in connection with the Corporate Reorganization, which merged each of the previously existing guarantors (other than the company and Laredo Midstream) into the Subsidiary, with the Subsidiary as the surviving entity; and, as a result thereof, leaving only Laredo Midstream and the company as guarantors, and subsequently merged the Subsidiary with and into the company, with the company as the surviving entity. Pursuant to the Fourth Supplemental Indenture, the company expressly assumed all the obligations of the Subsidiary under the 2019 Indenture and the 2019 Notes and Laredo Midstream, as the sole remaining guarantor of the 2019 Indenture and the 2019 Notes, confirmed its guarantee of the company's obligations under the 2019 Indenture and the 2019 Notes. The terms of the 2019 Notes are otherwise unchanged.

December 31, 2013, the company also entered into a Second Supplemental Indenture among the company, Laredo Midstream and the Trustee (the 'Second Supplemental Indenture'), to the Indenture dated as of April 27, 2012 (the '2012 Base Indenture') among the Subsidiary, the company, the other guarantors party thereto and the Trustee, as supplemented by the Supplemental Indenture, dated as of April 27, 2012, among the Subsidiary, the company, the other guarantors party thereto and the Trustee (the '2012 Supplemental Indenture,' and together with the 2012 Base Indenture, the '2012 Indenture') governing the Subsidiary's 7#3/8% Notes due 2022 in the aggregate principal amount of $500,000,000 (the '2022 Notes'). The Second Supplemental Indenture was entered into in connection with the Corporate Reorganization, which merged each of the previously existing guarantors (other than the company and Laredo Midstream) into the Subsidiary, with the Subsidiary as the surviving entity; and, as a result thereof, leaving only Laredo Midstream and the company as guarantors, and subsequently merged the Subsidiary with and into the company, with the company as the surviving entity. Pursuant to the Second Supplemental Indenture, the Company expressly assumed all the obligations of the Subsidiary under the 2022 Indenture and the 2022 Notes and Laredo Midstream, as the sole remaining guarantor of the 2022 Indenture and the 2022 Notes, confirmed its guarantee of the company's obligations under the 2022 Indenture and the 2022 Notes.

The terms of the 2022 Notes are otherwise unchanged.