Item 5 of the Schedule 13D is hereby supplemented as follows: (a) The responses of the Reporting Persons with regard to Items 11 and 13 of the cover pages to this Amendment No. 9 that relate to the aggregate number and percentage of Common Stock beneficially owned by such Reporting Persons are herein incorporated by reference. (b) The responses of the Reporting Persons with regard to Items 7, 8, 9 and 10 of the cover pages to this Amendment No. 9 that relate to the number of shares as to which such persons have sole power to vote or to direct the vote, shared power to vote or to direct the vote, and sole or shared power to dispose or to direct the disposition are herein incorporated by reference. (c) The following transactions in the Common Stock were effected by the Reporting Persons in the 60 days prior to the date of this filing: (1) On March 16, 2011, HOPCO sold 381,150 shares of Common Stock in the open market for aggregate consideration of $12,901,927.50. The shares were sold in multiple transactions at prices ranging from $33.42 to $34.57 per share. (2) On March 17, 2011, HOPCO sold 159,121 shares of Common Stock in the open market for aggregate consideration of $5,351,239.26. The shares were sold in multiple transactions at prices ranging from $33.50 to $34.03 per share. (3) On March 18, 2011, HOPCO sold 314,510 shares of Common Stock in the open market for aggregate consideration of $10,595,841.90. The shares were sold in multiple transactions at prices ranging from $33.60 to $34.00 per share. (4) On March 21, 2011, HOPCO sold 145,219 shares of Common Stock in the open market for aggregate consideration of $4,914,210.96. The shares were sold in multiple transactions at prices ranging from $33.63 to $34.14 per share. In addition, the following additional transactions in the Issuer’s common stock have occurred in the 60 days prior to the date of this filing in connection with HEH’s employment by the Issuer: (i) On February 4, 2011, HEH surrendered 289 shares of Common Stock valued at $36.99 per share to the Issuer in a net share settlement to satisfy income tax obligations on the vesting of restricted stock. (ii) On February 23, 2011, HEH received a grant of 7,004 shares of restricted stock from the Issuer. (iii) On February 25, 2011, HEH surrendered 1,889 shares of Common Stock valued at $38.40 per share to the Issuer in a net share settlement to satisfy income tax obligations on the vesting of restricted stock. Also, on December 22, 2010, Intrepid Production Corporation (“IPC”) gifted 15,000 shares of Common Stock. Shares owned by IPC may be deemed to be beneficially owned by the Reporting Persons as a result of the |