SEACOR Holdings Inc. Announces Order to Purchase Two 84,000 M3 LPG Carriers With an Option to Purchase up to Three Additional Carriers

FORT LAUDERDALE, FL--(Marketwired - May 2, 2013) - SEACOR Holdings Inc. (NYSE: CKH) ("SEACOR") announced today that it has executed an agreement with Hyundai Heavy Industries Co., Ltd. ("HHI"), through a subsidiary of SEACOR Ocean Transport Inc., for the construction of two Liquefied Petroleum Gas tankers (Very Large Gas Carriers, otherwise known as VLGCs) with expected deliveries in 2014 with an option to purchase up to three additional VLGCs with delivery in 2015. These vessels will be equipped to meet current and expected environmental and regulatory requirements and feature substantially improved performance and consumption due to a new hull design and the latest generation MAN B&W G-type engines.

SEACOR anticipates that the new vessels will be managed by Dorian (Hellas) S.A. ("Dorian") in a pool together with three VLGCs owned by affiliates of Dorian. Dorian also has an option to acquire or co-invest in up to 50% of the vessels under contract and option with HHI.

Cautionary Note Regarding Forward-Looking Statements

SEACOR is a global provider of equipment and services primarily supporting the offshore oil and gas and marine transportation industries. SEACOR offers customers a diversified suite of services including offshore marine, inland river and shipping. SEACOR is focused on providing highly responsive local service combined with the highest safety standards, innovative technology, modern, efficient equipment and dedicated professional employees. SEACOR is publicly traded on the New York Stock Exchange (NYSE) under the symbol CKH.

Certain statements discussed in this release as well as in other reports, materials and oral statements that the Company releases from time to time to the public constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Generally, words such as "anticipate," "estimate," "expect," "project," "intend," "believe," "plan," "target," "forecast" and similar expressions are intended to identify forward- looking statements. Such forward-looking statements concern management's expectations, strategic objectives, business prospects, anticipated economic performance and financial condition and other similar matters. These statements are not guarantees of future performance and actual events or results may differ significantly from these statements. Actual events or results are subject to significant known and unknown risks, uncertainties and other important factors, including decreased demand and loss of revenues as a result of U.S. government implemented moratoriums directing operators to cease certain drilling activities and any extension of such moratoriums (the "Moratoriums"), weakening demand for the Company's services as a result of unplanned customer suspensions, cancellations, rate reductions or non-renewals of vessel charters or failures to finalize commitments to charter vessels in response to Moratoriums, increased government legislation and regulation of the Company's businesses could increase cost of operations, increased competition if the Jones Act is repealed, liability, legal fees and costs in connection with the provision of emergency response services, including the Company's involvement in response to the oil spill as a result of the sinking of the Deepwater Horizon in April 2010, decreased demand for the Company's services as a result of declines in the global economy, declines in valuations in the global financial markets and a lack of liquidity in the credit sectors, including,

interest rate fluctuations, availability of credit, inflation rates, change in laws, trade barriers, commodity prices and currency exchange fluctuations, the cyclical nature of the oil and gas industry, activity in foreign countries and changes in foreign political, military and economic conditions, changes in foreign and domestic oil and gas exploration and production activity, safety record requirements related to Offshore Marine Services and Shipping Services, decreased demand for Shipping Services due to construction of additional refined petroleum product, natural gas or crude oil pipelines or due to decreased demand for refined petroleum products, crude oil or chemical products or a change in existing methods of delivery, compliance with U.S. and foreign government laws and regulations, including environmental laws and regulations, the dependence of Offshore Marine Services and Shipping Services on several customers, consolidation of the Company's customer base, the ongoing need to replace aging vessels, industry fleet capacity, restrictions imposed by the Shipping Acts on the amount of foreign ownership of the Company's Common Stock, operational risks of Offshore Marine Services, Inland River Services and Shipping Services, effects of adverse weather conditions and seasonality, the level of grain export volume, the effect of fuel prices on barge towing costs, variability in freight rates for inland river barges, the effect of international economic and political factors in Inland River Services' operations, sudden and unexpected changes in commodity prices, futures and options, global weather conditions, political instability, changes in currency exchanges rates, and product availability in agriculture commodity trading and logistics activities, adequacy of insurance coverage, the attraction and retention of qualified personnel by the Company, and various other matters and factors, many of which are beyond the Company's control as well as those discussed in Item 1A (Risk Factors) of the Company's Annual report on Form 10-K. In addition, these statements constitute the Company's cautionary statements under the Private Securities Litigation Reform Act of 1995. It should be understood that it is not possible to predict or identify all such factors. Consequently, the preceding should not be considered to be a complete discussion of all potential risks or uncertainties. Forward-looking statements speak only as of the date of the document in which they are made. The Company disclaims any obligation or undertaking to provide any updates or revisions to any forward-looking statement to reflect any change in the Company's expectations or any change in events, conditions or circumstances on which the forward-looking statement is based, except as required by law. It is advisable, however, to consult any further disclosures the Company makes on related subjects in its filings with the Securities and Exchange Commission, including Quarterly Reports on Form 10-Q and Current Reports on Form 8-K (if any).