Chiles Offshore and ENSCO Announce Effective Date Of Registration Statement

ENSCO International Incorporated and Chiles Offshore Inc. announced that the registration statement related to the issuance of ENSCO stock in connection with ENSCO's proposed acquisition of Chiles Offshore was declared effective by the Securities and Exchange Commission on July 5, 2002. As previously announced, the Chiles Board of Directors has set July 5, 2002 as the record date for determining stockholders entitled to vote on the transaction with ENSCO, which is subject to stockholder approval at a special meeting of Chiles stockholders to be held on August 7, 2002. It is expected that the proxy statement/prospectus related to the transaction will first be mailed to Chiles stockholders on or about July 9, 2002.