OMNI Announces Annual Shareholder Meeting

CARENCRO, La., April 29, 2009 (GLOBE NEWSWIRE) -- OMNI Energy Services Corp.
(Nasdaq:OMNI) ("OMNI" or the "Company") announced today that it has scheduled
its annual shareholder meeting to be held on Wednesday, May 27, 2009 at 10:00
AM, central daylight time, for shareholders of record as of April 14, 2009. The
meeting will be held at the corporate offices of the Company at 4500 N.E.
Evangeline Thruway, Carencro, LA.

Headquartered in Carencro, LA, OMNI Energy Services Corp. offers a broad range
of integrated services to geophysical companies engaged in the acquisition of
on-shore seismic data and to oil and gas companies operating in the Gulf of
Mexico as well as the prolific oil and gas producing regions of the continental
United States of America. OMNI provides its services through five business
segments: Seismic Services (including drilling, survey and permitting services),
Environmental Services, Equipment Leasing, Fluid and Transportation Services and
Other Services.

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 and
uncertainties associated with the impact of the current economic climate, the
timely conversion of seismic drilling backlog into revenue, the acceptance and
use of OMNI's environmental cleaning services, OMNI's dependence on activity in
the oil and gas industry, labor shortages, permit delays, dependence on
significant customers, seasonality and weather risks, competition, technological
evolution, the outcome of pending litigation, the continued growth of our
environmental services and rental equipment business units, and other risks
detailed in OMNI's filings with the Securities and Exchange Commission.

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CONTACT: OMNI Energy Services Corp.
Ronald D. Mogel, Senior Vice President and Chief
Financial Officer
(337) 896-6664