Exhibit 99.1

[Logo of Seabulk International]
                                                                   PRESS RELEASE


             SEABULK INTERNATIONAL ANNOUNCES AGREEMENTS TO SELL TWO
                          FOREIGN-FLAG PRODUCT TANKERS


Fort Lauderdale, FL, August 1, 2005 - Seabulk International, Inc., a wholly
owned subsidiary of SEACOR Holdings Inc. (NYSE:CKH), today announced that it has
signed an agreement to sell the Seabulk Trust, a 48,000-dwt foreign-flag
double-hull product tanker. Delivery of the Seabulk Trust to its buyer is
expected in August. In a separate transaction, an agreement was signed to sell
the Seabulk Reliant, a 48,000-dwt foreign-flag double-hull product tanker.
Delivery of the Seabulk Reliant to its buyer is expected in September. Both
vessels currently trade worldwide as part of the Dorado product tanker pool.

About Seabulk
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      Seabulk International is a leading provider of marine support and
transportation services, primarily to the energy and chemical industries.
Seabulk provides benchmark quality service to its customers based on innovative
technology, the highest safety standards, modern efficient equipment and
dedicated, professional employees. Visit Seabulk's Web Site at
www.seabulkinternational.com. Seabulk International is a wholly owned subsidiary
of SEACOR Holdings Inc. For more information, contact Timothy McKeand, Vice
President, at (954) 524-4200 ext. 820 or visit SEACOR's Web Site at
www.seacorholdings.com.


Forward-Looking Information
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This release contains forward-looking statements within the meaning of the
Private Securities Litigation Reform Act of 1995. Such statements include, but
are not limited to, statements about the Company's plans, objectives,
expectations and intentions, its outlook for performance and markets in which it
participates, and other statements that are not historical facts. Such
statements are based upon the current beliefs and expectations of management and
are subject to significant risks and uncertainties. Actual results may differ
materially from those set forth in the relevant forward-looking statements.
Additional factors that could cause results to differ materially from those
described in the forward-looking statements can be found in SEACOR and Seabulk's
respective Annual Reports on Form 10-K (as supplementally amended by Form
10-K/A) for the fiscal year ended December 31, 2004. SEACOR and Seabulk disclaim
any obligation or undertaking to disseminate any updates or revisions to any
forward-looking statements to reflect any change in Company's expectations or
any change in events, conditions or circumstances on which any such statements
are based.


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