Transaction Details

Footnotes

The transactions referenced herein provide for various per share prices ranging from $6.59 to $6.64. The Reporting Persons undertake to provide to Staff of the Securities and Exchange Commission or any security holder of the Issuer, upon full information regarding the number of shares sold at each separate price. | The shares of Common Stock to which this relates are held directly by Double Black Diamond Offshore Ltd., a Cayman Islands exempted company (the "Fund"). Carlson Capital, L.P., a Delaware limited partnership ("Carlson Capital") serves as the investment manager to, and has the power to direct the affairs of, the Fund. Asgard Investment Corp. II, a Delaware corporation ("Asgard II") serves as the general partner of, and has the power to direct the affairs of, Carlson Capital. Mr. Clint D. Carlson, a U.S. citizen, serves as the president of, and has the power to direct the affairs of, Asgard II, Carlson Capital, and any of its affiliated entities and related parties ("Mr. Clint D. Carlson"). Each of the reporting persons disclaims beneficial ownership of the securities to which this Form 4 relates for the purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except as to such extent of the reporting person's pecuniary interest in the securities. | These shares of Common Stock are held directly by Carlson Capital GP, L.P., an affiliated entity to Carlson Capital. Carlson Capital GP disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein. | These shares of Common Stock are held directly by Mr. Clint D. Carlson. Carlson disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. | These shares of Common Stock are held directly by Lewis Carlson, an individual who works at Carlson Capital. Lewis Carlson disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. | These shares of Common Stock are held directly by Owen Augustus Carlson 1997 A Trust, a related party to Carlson Capital. Owen Augustus Carlson 1997 A Trust disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein. | These shares of Common Stock are held directly by Julian Orlando Carlson 1997 A Trust, a related party to Carlson Capital. Julian Orlando Carlson 1997 A Trust disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein. | These shares of Common Stock are held directly by The Carlson Foundation, an affiliated entity to Carlson Capital. The Carlson Foundation disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein. | These shares of Common Stock are held by Carlson Capital as the investment manager to the Fund. Carlson Capital disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. | These shares of Common Stock are held by Asgard II as the general partner of Carlson Capital who serves as the investment manager to the Fund. Asgard II disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. | These shares of Common Stock are held by Mr. Clint D. Carlson as the president of Carlson Capital, Carlson Capital GP, The Carlson Foundation, and Asgard II. Mr. Clint D. Carlson is also the Chief Investment Officer of the investment manager of the Fund. Furthermore, immediate family members of Mr. Clint D. Carlson hold shares. Each disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.