Gasco
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Energy


For Release at 9:00 AM EDT on Monday, October 4, 2004
             GASCO ENERGY PROVIDES RIVERBEND PROJECT ACTIVITY UPDATE

DENVER - (PR  Newswire) - October 4, 2004 - Gasco  Energy,  Inc.  (OTC BB: GASE)
today provided an interim oil and gas activities and  operational  update on its
Riverbend Project in Utah's Uinta Basin.

Drilling Activity
In September, Gasco ran pipe on two wells in the Riverbend area. One well tested
the  Mesaverde  and  Wasatch  formations  and the  other  tested  the  Blackhawk
Formation.  As a result  Gasco now has three wells  awaiting  completion  in the
Riverbend area. Year to date, Gasco has drilled eight gross wells, five of which
have been completed and are flowing to sales.

The Company is also currently  drilling its ninth and tenth wells of this fiscal
year.  One of these wells is located in the southern part of the Riverbend  area
and the second is located to the west in the West Desert  area.  Both wells will
test the Wasatch, Mesaverde and Blackhawk formations.

Production
Cumulative  monthly  production  for September 2004 was 150.6 million cubic feet
equivalent  (MMcfe) gross,  or 40.6 MMcfe net. This is a 13.2% percent  decrease
from August's cumulative gross production of 173.5 MMcfe.

Cumulative  net  production  for  third  quarter  2004  was  127.6  MMcfe.  This
represents a 100% increase in net production  over the same period in 2003 and a
2.0% decrease over the second quarter 2004

September's  decline in  production  is attributed to periodic well shut-ins and
well  completion  delays  associated  with  the  construction  of the  Company's
Riverbend  gathering system and to normal production  decline.  The construction
project is nearing completion. Gasco is also performing routine well maintenance
and workovers in advance of anticipated higher demand for natural gas associated
with the winter heating season.

Management Comment
Commenting  on the Riverbend  Project,  Gasco CEO and  President,  Mark Erickson
said:  "We  continue  to be  encouraged  with  the  potential  of the  Blackhawk
Formation and are increasing activity targeting this objective. It is our belief
that we are validating the geology while we continue to improve  drilling phases
of  the  project.   Now  additional   focus  is  on  completion  and  production
optimization as we analyze longer-term production results."

About Gasco Energy
Gasco  Energy,  Inc.  is a  Denver-based  natural gas and oil  exploitation  and
development  company  that  focuses on  natural-gas-rich  prospects in the Rocky
Mountain area of the United States. The Company currently is active in the Uinta
Basin in Utah and controls  acreage in the Greater Green River Basin of Wyoming.
To learn more, visit www.gascoenergy.com.

Forward-looking statements
Certain statements set forth in this press release relate to management's future
plans,  objectives and expectations.  Such statements are forward-looking within
the  meanings  of Section 27A of the  Securities  Act of 1933,  as amended,  and
Section 21E of the Securities  Exchange Act of 1934, as amended.  All statements
other than  statements  of  historical  facts  included  in this press  release,
including,  without  limitation,   statements  regarding  the  Company's  future
financial position,  potential resources,  business strategy, budgets, projected
costs and  plans  and  objectives  of  management  for  future  operations,  are
forward-looking  statements. In addition,  forward-looking  statements generally
can be  identified  by the use of  forward-looking  terminology  such as  "may,"
"will," "expect," "intend," "project," "estimate,"  "anticipate,"  "believe," or



"continue"  or  the  negative  thereof  or  similar  terminology.  Although  any
forward-looking  statements contained in this press release are to the knowledge
or in the judgment of the officers and directors of the Company,  believed to be
reasonable, there can be no assurances that any of these expectations will prove
correct  or  that  any  of  the  actions   that  are  planned   will  be  taken.
Forward-looking  statements  involve known and unknown  risks and  uncertainties
that may cause the Company's actual  performance and financial results in future
periods to differ materially from any projection, estimate or forecasted result.
Some of the key  factors  that may cause  actual  results to vary from those the
Company expects include inherent  uncertainties in interpreting  engineering and
reserve or  production  data;  operating  hazards;  delays or  cancellations  of
drilling  operations  because of weather and other natural and economic  forces;
fluctuations  in oil and  natural  gas prices in  response to changes in supply;
competition from other companies with greater resources; environmental and other
government  regulations;  defects  in  title  to  properties;  increases  in the
Company's cost of borrowing or inability or  unavailability of capital resources
to fund capital expenditures;  and other risks described under "Risk Factors" in
Part I, Item 1 of the Company's latest Annual Report on Form 10-K filed with the
Securities and Exchange Commission.

Contact for Gasco Energy, Inc.: Investor Relations: 303-483-0044

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