Exhibit 23.4

CONSENT OF AKIN GUMP STRAUSS HAUER & FELD LLP

     We hereby consent to the use of our name in the prospectus forming a part of this Registration Statement on Form S-3 under the caption “Legal Matters.” In giving this consent, we do not admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act and the rules and regulations promulgated thereunder.

AKIN GUMP STRAUSS HAUER & FELD LLP

Houston, Texas
March 14, 2008