Omega Navigation Enterprises, Inc. Announces the Signing of Shipbuilding Contracts for Five New Building Product Tankers

Conference Call Tomorrow Wednesday, June 20, 2007 to Discuss This Acquisition


PIRAEUS, GREECE--(Marketwire - June 19, 2007) - Omega Navigation Enterprises, Inc. (NASDAQ: ONAV) (SGX: ONAV50), a provider of global marine transportation services focusing on product tankers, announced today that it has signed shipbuilding contracts with Hyundai Mipo Dockyard, a preeminent shipyard, in South Korea, to construct and acquire five newbuilding double hull handymax product tankers each with a capacity of 37,000 dwt. Four of these product tankers are scheduled for delivery in 2010 starting in the first quarter of 2010, with the fifth scheduled for delivery for February 2011.

The agreed purchase price of the five new buildings is $44.2 million per vessel. Predelivery payment terms provide for 10% in early July 2007 and 10% in mid December 2007. No further progress payments will be due until mid 2009. These first two installments will be funded either fully with debt or with a combination of debt and internally generated cash flow and the company does not expect this financing structure to affect its ability to fund its current quarterly dividend policy.

With the addition of these five vessels, the Omega fleet will consist of 13 product tankers with a total deadweight capacity of 697,358 tons.

Management Commentary:

George Kassiotis, President and Chief Executive Officer of Omega Navigation, commented: "We are pleased to announce the continued implementation of our growth strategy with the ordering of these five newbuilding handymax product tankers. These are high specification IMO II/III product/chemical tankers and are being built in one of the most specialized and reputable yards in the world for building this type of vessel.

Omega's current fleet already includes two vessels of similar characteristics built in this yard. We expect to take delivery of these vessels between March of 2010 and early in the year 2011 at a time when newbuilding berths for product tankers around the world are becoming increasingly hard to find.

Given the design and quality of the vessels, we expect to employ them on long term charters to high quality charterers, consistent with the employment of our current vessels. We believe that this transaction ensures that we will be able to grow the fleet in a disciplined manner as we have contracted these high quality vessels at prices well below those that could be currently achieved in the second hand market.

At the same time, the Company continues to actively monitor potential accretive opportunities in the second hand sales and purchase market."

Conference Call:

On Wednesday, June 20, 2007 at 5:00 P.M. EDT, the company's management will host a conference call to discuss the details of the new building acquisitions.

Conference Call Details:

Participants should dial into the call 10 minutes before the scheduled time using the following numbers: 1-866-819-7111 (US Toll Free Dial In), 0800-953-0329 (UK Toll Free Dial In) or +44 (0)1452-542-301 (Standard International Dial In). Please quote "Omega."

A telephonic replay of the conference call will be available until June 27, 2007 by dialing 1-866-223-0615 (US Toll Free Dial In), 0800-694-1503 (UK Toll Free Dial In) or +44(0)1452-586-513 (Standard International Dial In). Access Code: 3663884#

Slide and Audio Webcast:

There will also be a live, and then archived, webcast of the conference call, that can be accessed through Omega Navigation's website at www.omeganavigation.com. Participants to the live webcast should register on the website approximately 10 minutes prior to the start of the webcast.

Fleet Profile and Employment:

The table below describes the profile and employment of the Company's fleet as of today:

           Sister   Year  Deadweight           Delivery Daily Hire Re-
Vessel     Ship (1) Built   (dwt)      Type      Date   Rate (2)   delivery
           -------- ----- ---------- --------- -------- ---------  --------
CURRENT FLEET
Panamax Product Tankers
           -------- ----- ---------- --------- -------- ---------  --------
Omega Queen       A  2004     74,999       LR1   May-06 $26,500(3)   May-09
           -------- ----- ---------- --------- -------- ---------  --------
Omega King        A  2004     74,999       LR1   Jun-06 $26,500(3)   Jun-09
           -------- ----- ---------- --------- -------- ---------  --------
Omega Lady                           LR1 - Ice
 Sarah            C  2004     71,500  Class 1C   Jun-06 $24,000(4)   Jun-09
           -------- ----- ---------- --------- -------- ---------  --------
Omega Lady                           LR1 - Ice
 Miriam           C  2003     71,500  Class 1C   Aug-06 $24,000(4)   Jul-09
           -------- ----- ---------- --------- -------- ---------  --------
Omega                                LR1 - Ice
 Emmanuel         D  2007     73,000  Class 1A   Mar-07 $25,500(6)   Apr-10
           -------- ----- ---------- --------- -------- ---------  --------
Omega                                LR1 - Ice
 Theodore         D  2007     73,000  Class 1A   Apr-07 $25,500(6)   May-10
           -------- ----- ---------- --------- -------- ---------  --------

Handymax Product Tankers
           -------- ----- ---------- --------- -------- ---------  --------
Omega                                MR1- Ice
 Prince           B  2006     36,680  Class 1A   Jun-06 $21,000(5)   Jun-09
           -------- ----- ---------- --------- -------- ---------  --------
Omega                                MR1 - Ice
 Princess         B  2006     36,680  Class 1A   Jul-06 $21,000(5)   Jun-09
           -------- ----- ---------- --------- -------- ---------  --------
TOTAL (DWT):                 512,358
           -------------- ---------- --------------------------------------

Additional Handymax Vessels
           -------- ----- ---------- --------- -------- ---------  --------
TBN 1             E  2010     37,000             Mar-10
           -------- ----- ---------- --------- -------- ---------  --------
TBN 2             E  2010     37,000            July-10
           -------- ----- ---------- --------- -------- ---------  --------
TBN 3             E  2010     37,000            Sept-10
           -------- ----- ---------- --------- -------- ---------  --------
TBN 4             E  2010     37,000           Dec. -10
           -------- ----- ---------- --------- -------- ---------  --------
TBN 5             E  2011     37,000           Feb. -11
           -------- ----- ---------- --------- -------- ---------  --------
Total (DWT):                 185,000
           -------------- ---------- --------------------------------------

(1) Each vessel is a sister ship of each other vessel that has the same
    letter.

(2) This table shows gross charter rates and does not include brokers'
    commissions, which are 1.25% of the daily time charter rate.

(3) The Company has granted Torm the option to extend the charter for
    24 months at a minimum daily time charter hire rate of $28,500.

(4) Plus any additional income under profit sharing provisions of the
    Company's charter agreement.

(5) Plus any additional income under profit sharing provisions of the
    charter agreements with D/S Norden A/S. The Company has granted the
    charterers the option to extend the charter for 12 months at a
    minimum daily time charter hire rate of $24,000.

(6) Plus any additional income under profit sharing arrangements,
    according to which charter earnings in excess of $ 25,500 per
    day will be divided equally between Omega Navigation and ST
    Shipping. When the vessels trade in ice conditions, the profit
    sharing between Omega Navigation and ST Shipping is 65/35%
    respectively.
About Omega Navigation Enterprises, Inc.

Omega Navigation Enterprises, Inc. is an international provider of global marine transportation services through the ownership and operation of eight double hull product tankers. The current fleet includes eight double hull product tankers with a carrying capacity of 512,358 dwt. These eight product tankers are chartered out under three-year period time charters.

Furthermore, the company announced the signing of shipbuilding contracts to construct and acquire five newbuilding double hull handymax product tankers each with a capacity of 37,000 dwt scheduled for delivery between March 2010 and early in 2011. With the addition of these five vessels, the Omega fleet will expand to 13 product tankers with a total deadweight capacity of 697,358 tons.

The Company was incorporated in the Marshall Islands in February 2005. Its principal executive offices are located in Piraeus, Greece and it also maintains an office in the United States.

Omega Navigation's Class A common shares are traded on the NASDAQ National Market under the symbol "ONAV" and are also listed on the Singapore Exchange Securities Trading Limited under the symbol "ONAV 50."

Cautionary Statement Regarding Forward-Looking Statements

Matters discussed in this press release may constitute forward-looking statements. The Private Securities Litigation Reform Act of 1995 provides safe harbor protections for forward-looking statements in order to encourage companies to provide prospective information about their business. Forward-looking statements include statements concerning plans, objectives, goals, strategies, future events or performance, and underlying assumptions and other statements, which are other than statements of historical facts.

The Company desires to take advantage of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and is including this cautionary statement in connection with this safe harbor legislation. The words "believe," "except," "anticipate," "intends," "estimate," "forecast," "project," "plan," "potential," "will," "may," "should," "expect" pending and similar expressions identify forward-looking statements.

The forward-looking statements in this press release are based upon various assumptions, many of which are based, in turn, upon further assumptions, including without limitation, the Company's management's examination of historical operating trends, data contained in the Company's records and other data available from third parties. Although the Company believes that these assumptions were reasonable when made, because these assumptions are inherently subject to significant uncertainties and contingencies which are difficult or impossible to predict and are beyond the Company's control, the Company cannot assure you that the Company will achieve or accomplish these expectations, beliefs or projections.

In addition to these important factors other important factors that, in the Company's view, could cause actual results to differ materially from those discussed in the forward-looking statements include the strength of world economies and currencies, general market conditions, including fluctuations in charter rates and vessel values, changes in demand for product tanker and dry bulk shipping capacity, changes in the Company's operating expenses, including bunker prices, drydocking and insurance costs, the market for the Company's vessels, availability of financing and refinancing, changes in governmental rules and regulations or actions taken by regulatory authorities, potential liability from pending or future litigation, general domestic and international political conditions, potential disruption of shipping routes due to accidents or political events, vessels breakdowns and instances of off-hires and other factors. Please see the Company's filings with the Securities and Exchange Commission for a more complete discussion of these and other risks and uncertainties.

Contact Information: Contacts: Company Contact: Gregory A. McGrath Chief Financial Officer Omega Navigation Enterprises, Inc. PO Box 272 Convent Station, NJ 07961 Tel. (551) 580-0532 E-mail: gmcgrath@omeganavigation.com www.omeganavigation.com Investor Relations / Financial Media: Nicolas Bornozis President Capital Link, Inc. 230 Park Avenue, Suite 1536 New York, NY 10169 Tel. (212) 661-7566 E-mail: nbornozis@capitallink.com www.capitallink.com