[OMNI ENERGY SERVICES CORP LOGO]          NEWS RELEASE            Nasdaq: OMNI
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4500 NE Evangeline Thwy - Carencro, LA 70520 - Phone - 337-896-6664 -
Fax 337-896-6655


      FOR IMMEDIATE RELEASE                                           NO. 05-06

FOR MORE INFORMATION CONTACT:
G. Darcy Klug, Executive Vice President (337) 896-6664


               OMNI SECURES $50 MILLION SENIOR CREDIT COMMITMENTS

 Proceeds to be Used to Re-Finance Long-Term Debt, Provide Working Capital and
                    Establish an Acquisition Line of Credit
             Working Capital Revolver to be Increased to $15 Million

                  CARENCRO, LA - APRIL 19, 2005 - OMNI ENERGY SERVICES CORP.
(NASDAQ NM: OMNI) announced today that it has received commitments for a $50
million senior credit term loan from an institutional investor. Closing is
expected during the second quarter of 2005 and is subject to the negotiation,
execution and delivery of loan and contractual documentation reasonably
satisfactory to the lender, as well as approval from the Company's Board of
Directors. Additionally, the Company announced that concurrent with the closing
of the new senior secured credit facility, it will increase its existing working
capital revolver to $15 million. The proceeds from the senior credit term loan
and the increased availability under the revolver will be used to re-finance
certain long-term debt, provide working capital and establish funding necessary
to complete strategic transactions.

                  On the new credit facilities, James C. Eckert, OMNI's Chief
Executive Officer, commented, "The new credit facilities are an integral
component of our strategic business plans to facilitate the continued expansion
and growth of OMNI. These new senior credit facilities permit the Company to
re-finance its existing debt under terms more favorable than what is provided
under our existing credit agreements. This increased funding capacity available
under these new senior credit facilities positions OMNI to complete certain
strategic acquisitions within our core business segments while remaining focused
on organic growth. Additionally, in the future, using a combination of debt and
equity to support our business model enhances stockholder value without
adversely leveraging the Company's balance sheet. Management remains confident
in its long-range business model to establish OMNI as a leading provider of an
integrated range of services to the oil and gas industry," concluded Eckert.

         Headquartered in Carencro, LA, OMNI Energy offers a broad range of
integrated services to geophysical companies engaged in the acquisition of
on-shore seismic data and through its aviation division, transportations
services to oil and gas companies operating in the shallow, offshore waters of
the Gulf of Mexico. The company provides its services through several business
units: Seismic Drilling, Aviation, Permitting, Seismic Survey and Environmental.
OMNI's services play a significant role with geophysical companies who have
operations in marsh, swamp, shallow water and the U.S. Gulf Coast also called
transition zones and contiguous dry land areas also called highland zones.

         Forward-looking statements in this release are made pursuant to the
safe harbor provisions of the Private Securities Litigation Reform Act of 1995.
Investors are cautioned that all forward-looking statements involve risks
associated with OMNI's dependence on activity in the oil and gas industry, labor
shortages, international expansion, dependence on significant customers,
seasonality and weather risks, competition, technological evolution, the outcome
of pending litigation, completion of strategic transactions under consideration
by OMNI, completion on the Senior Credit Facility on favorable terms, or at all,
and other risks detailed in the Company's filings with the Securities and
Exchange Commission.