EXHIBIT 99.1

Gasco
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Energy



For Immediate Release on Tuesday, September 7, 2004

             GASCO ENERGY PROVIDES RIVERBEND PROJECT ACTIVITY UPDATE
                     PRODUCTION RISES WITH DRILLING ACTIVITY

DENVER - (PR Newswire) - September 7, 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 August,  Gasco  spudded  two wells,  completed  two wells that are flowing to
sales, and one well is awaiting completion.

Year to date, Gasco has drilled six gross wells.  Five wells have been completed
and are flowing to sales and one is awaiting  completion.  The wells are part of
Gasco's proposed 15 gross well program for 2004.

Two wells are currently being drilled in the Riverbend Project's Riverbend Area.
One will test the Wasatch,  Mesaverde  and Blackhawk  formations  and the second
well is being drilled to the Wasatch and Mesaverde formations.  Please reference
www.gascoenergy.com/areas.html  for a detailed map of the four Riverbend Project
areas: Riverbend, West Desert, Wilkin Ridge and Gate Canyon.

Production
Cumulative monthly gross production for August 2004 was 173.5 million cubic feet
equivalent  (MMcfe),  or 47.2 MMcfe net. This is a 28.9%  percent  increase from
July's  cumulative  gross  production of 134.6 MMcfe and an 18.5%  increase from
July's net  production  of 39.8  MMcfe.  Production  data  provided  assumes net
revenue  interest which factors in an average of 20% royalty payments to mineral
owners.

Production could be affected for September due to the expansion of the Riverbend
gathering system that is resulting in periodic well shut-ins and well completion
delays  associated  with the  construction  process.  Gasco  is also  performing
routine well maintenance and analysis during this period.

Management Comment
Commenting  on the Riverbend  Project,  Gasco CEO and  President,  Mark Erickson
said:  "This  update  is the  first of what we  anticipate  to be  approximately
monthly updates on our oil and gas activities in Utah and Wyoming. With two rigs
drilling  in the  Riverbend  Area,  we will be able to  provide  investors  with
meaningful drilling and completion, and related activity updates.

"In the past we have  occasionally  reported  initial  production (IP) rates for
completed  wells.  Our  reservoir  engineers  continue  extensive  geo-technical
modeling to best understand reservoir characteristics. Their work shows that the
relationship  between IP rates and estimated  reserves does not correlate with a
high degree of reliability. A much better predictor of estimated reserves is the
long-term well performance and production decline analysis,  which we believe is
best assessed after at least six months of production history. As a consequence,
Gasco will no longer  announce IP rates. We instead suggest that investors focus
on the  drilling  and  completion  activity  and the  gross  and net  production
figures, which are two of the metrics that management uses to gauge progress."

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.

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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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