Diamond Offshore Drilling, Inc. (NYSE:DO) today reported the
pricing of $500 million principal amount of the Company’s 5.875% senior
unsecured notes due May 1, 2019. The notes were offered at 99.851% of
the principal amount. Closing of the transaction is scheduled for May 4,
2009, subject to customary closing conditions. The Company intends to
use the net proceeds from the sale of the notes for general corporate
purposes.
This notice does not constitute an offer to sell or the solicitation of
an offer to buy securities. Any offers of the securities will be made
only by means of a private offering memorandum. The notes have not been
registered under the Securities Act of 1933, as amended, or the
securities laws of any other jurisdiction and may not be offered or sold
in the United States absent registration or an applicable exemption from
the registration requirements.
Diamond Offshore provides contract drilling services to the energy
industry and is a leader in deepwater drilling. Additional information
on Diamond Offshore and access to the Company’s SEC filings is available
on the Internet at www.diamondoffshore.com.
Statements contained in this press release which are not historical
facts are “forward-looking statements” within the meaning of the federal
securities laws. Forward-looking statements are inherently uncertain and
subject to a variety of risks that could cause actual results to differ
materially from those expected by management of the Company. A
discussion of the important risk factors and other considerations that
could materially impact these matters as well as the Company’s overall
business and financial performance can be found in the Company’s reports
filed with the Securities and Exchange Commission and readers of this
release are urged to review those reports carefully when considering
these forward-looking statements. Copies of these reports are available
through the Company’s website www.diamondoffshore.com.
Given these risk factors, investors and analysts should not place undue
reliance on forward-looking statements. Any such forward-looking
statements speak only as of the date of this press release. The Company
expressly disclaims any obligation or undertaking to release publicly
any updates or revisions to any forward-looking statement to reflect any
change in the Company’s expectations with regard thereto or any change
in events, conditions or circumstances on which any forward-looking
statement is based.

Diamond Offshore Drilling, Inc.
Director, Investor
Relations
Les Van Dyke, 281-492-5370