Atwood Oceanics Prices Common Stock Offering

Atwood Oceanics has priced an offering of 2,175,000 shares of common stock, which is an increase from the offering of 2,000,000 shares previously announced, pursuant to effective shelf registration statements on Form S-3 (File Nos. 333-92388 and 333-117534) previously filed with the Securities and Exchange Commission. Goldman, Sachs & Co. is acting as sole book-runner and joint manager with Credit Suisse First Boston LLC. Jefferies & Company, Inc., Raymond James & Associates, Inc. and Stifel, Nicolaus & Company, Incorporated are serving as co-managers. The offering includes 1,175,000 shares of common stock to be sold by Atwood and 1,000,000 shares of common stock to be sold by Helmerich & Payne International Drilling Co., as selling stockholder. The underwriters have the option to purchase up to 325,000 additional shares of common stock from Atwood.

The underwriting agreement provides that the shares of common stock sold in the offering will be priced at $48.50 per share, less the underwriters discount of $2.67 per share, for net proceeds before expenses of $45.83 per share.

Atwood intends to use the net proceeds from the offering to repay a portion of the outstanding indebtedness under its existing credit facility. Atwood will not receive any proceeds from the sale of common stock by the selling stockholder.

A copy of the final prospectus supplement, preliminary prospectus supplement and related base prospectus relating to this offering may be obtained from Goldman, Sachs & Co.'s Prospectus Department at 85 Broad Street, New York, New York, 10004, by telephone at 212-902-1171 or by faxing a request to 212-902-9316.

This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. The offering may be made only by means of the prospectus supplement and related base prospectus.