Atwood Oceanics announces 2M share repurchase plan Atwood Oceanics (ATW) announced that the company had agreed to repurchase 2M shares of its common stock from Helmerich & Payne International Drilling Co. (HP) at a discount to the closing market price of the common stock. Following the repurchase, the company will cancel the shares. The transaction is expected to close on June 13. H&P advised the company that H&P is selling an additional 2M shares of the company's common stock in a block sale to a financial institution. Subsequent to the closing of these sales transactions and cancellation of the shares purchased by the company, H&P will own 4M shares of the company, or approximately 6.3% of the company's outstanding shares.