EX-23 3 exh231.txt < Exhibit 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated December 12, 2006 relating to the consolidated financial statements, management's assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting, which appears in the 2006 Annual Report to Shareholders, which is incorporated by reference in Atwood Oceanics, Inc.'s Annual Report on Form 10-K for the year ended September 30, 2006. /S/ PRICEWATERHOUSECOOPERS LLP PricewaterhouseCoopers LLP Houston, Texas February 19, 2007