EXHIBIT 99.1
Gasco
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Energy



For Release at 8:30 AM EDT on Wednesday, August 2, 2006
         GASCO ENERGY PROVIDES ESTIMATES OF PROVED AND PROBABLE RESERVES
                        ON PART OF ITS RIVERBEND PROJECT

DENVER - (PR Newswire) - August 2, 2006 - Gasco Energy,  Inc. (AMEX:  GSX) today
provided results of its recent estimated  probable reserve analysis,  also known
as 2-P reserve estimates. Gasco is providing these results to provide additional
insight into the future potential of Gasco's  Riverbend  Project in Utah's Uinta
Basin. In accordance  with SEC guidelines,  only proved reserves can be included
in documents  filed with the SEC.  Gasco's  previously  reported  2005  year-end
proved reserves were 76.7 billion cubic feet equivalent (Bcfe).

Estimates  of  probable   reserves  were  prepared  by   independent   reservoir
engineering  consultants,  Netherland Sewell and Associates,  the same firm that
engineers Gasco's year-end proved reserves.


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Gasco Energy, Inc. Proved & Probable Comparison

                               Gasco Net Interest
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                           MBbls               MMcf               MMcfe
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Proved + Probable          1,958             269,043             280,789
12/31/2004
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Proved  + Probable         2,318             329,787             343,692
6/30/2006
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% Change                     18%                 23%                 22%
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The analysis encompasses approximately 10,000 gross (6,600 net) acres of Gasco's
Riverbend Project representing less that 10% of the company's total leasehold in
this area. At December 31, 2005, Gasco owned or controlled approximately 124,000
gross acres and 74,000 net acres in the Riverbend Project. The analysis does not
include petroleum resource potential over the remaining 90% of Gasco's Riverbend
acreage.


Gasco Energy, Inc. Proved + Probable Reserve Reconciliation
- -------------------------------------------- ------------------- ---------------
                                 MMcf              MBbl                 MMcfe
- -------------------------------------------- ------------------- ---------------
- -------------------------------------------- ------------------- ---------------
Beginning Balance (12/31/04)    269,043             1,958             280,789
- -------------------------------------------- ------------------- ---------------
- -------------------------------------------- ------------------- ---------------
                  Production      3,358                20               3,476
- -------------------------------------------- ------------------- ---------------
- -------------------------------------------- ------------------- ---------------
                   Additions    196,639             1,379             204,914
- -------------------------------------------- ------------------- ---------------
- -------------------------------------------- ------------------- ---------------
                   Revisions   (139,253)           (1,039)           (145,487)
- -------------------------------------------- ------------------- ---------------
- -------------------------------------------- ------------------- ---------------
Ending Balance (6/30/06)        329,787             2,318             343,692
- -------------------------------------------- ------------------- ---------------

The  additions  are  principally  the result of the  success we have seen in the
Spring Canyon trend.  The negative  revisions  were seen in West Desert where we
have not drilled since 2004 and have not benefited  from our current  completion
techniques,  and  in  Wilkin  Ridge  where  we  have  experienced  drilling  and
production casing cost overruns,  as previously  disclosed.  Gasco believes that
these problems may be overcome in the future.

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The 2-P analysis was completed using technical certainty of natural gas recovery
of the proved and probable reserves in place.

Management Comment
"We  continue  to make  significant  progress in reserve  growth and  investment
reduction.  We have  concentrated on close-in  drilling in the Riverbend area to
take advantage of historically  high commodity prices. In spite of this, we were
able to add 205 Bcfe net proved and probable  reserves  since December 31, 2004.
The  substantial  additions and revisions are a result of the limited  amount of
drilling  and  production  history we have on this  project.  We have drilled 51
wells out of a potential  3,000  locations and have  production  history of less
than five years on wells that are  projected  to produce for more than 30 years.
We have a very  large  acreage  position  with a  limited  drilling  budget  for
step-out  wells.  In 2006, we have  dedicated a larger  portion of our budget to
step-out  drilling  in  the  Wilken  Ridge  area  where  we  have  identified  a
high-potential trend."

Definition - Reserves
Reserves are those quantities of crude oil, natural gas, and natural gas liquids
that are anticipated to be commercially  recovered from known accumulations from
a given date forward.  Reserve estimates involve varying degrees of uncertainty,
depending  largely on the amount of reliable  geological  and  engineering  data
available at the time of the estimate and the  interpretation  of the data.  The
relative degree of uncertainty can be conveyed by broadly placing  reserves into
one of two categories -- proved or unproved.

Two basic methods are commonly used by industry to prepare reserve  estimates --
the deterministic and probabilistic  methods.  The deterministic method yields a
single best  estimate of reserves  based on known  geological,  engineering  and
economic data. The probabilistic  method uses known geological,  engineering and
economic  data to generate a range of  estimated  reserve  quantities  and their
associated probabilities. Each reserve classification gives an indication of the
probability of recovery.

Definition - Proved Reserves
Proved reserves are those  quantities of crude oil, natural gas, and natural gas
liquids which  geological  and  engineering  data  demonstrate  with  reasonable
certainty to be recoverable in future years from known reservoirs under existing
economic and operating  conditions.  Proved  developed  reserves  include proved
developed producing reserves and proved developed behind-pipe  reserves.  Proved
developed  producing  reserves are only those reserves  expected to be recovered
from  existing   completion   intervals  in  existing  wells.  Proved  developed
behind-pipe  reserves are those reserves  expected to be recovered from existing
wells where a relatively minor capital expenditure is required for recompletion.
Proved undeveloped reserves are those reserves expected to be recovered from new
wells on  undrilled  acreage or from  existing  wells where a  relatively  major
expenditure is required for recompletion.

Definition - Unproved Reserves
Unproved  reserves  are  considered  less  certain to be  recovered  than proved
reserves.   Estimates  of  unproved   reserves  are  based  on  geologic  and/or
engineering  data  similar  to  that  used  to  estimate  proved  reserves,  but
technical,  contractual,  economic  considerations  and/or  SEC,  state or other
regulations  preclude such reserves  from being  classified as proved.  Unproved
reserves  may be further  sub-classified  as  probable  and  possible  to denote
progressively increasing uncertainty of recoverability.  Importantly, estimation
of unproved reserves may assume future economic conditions  different than those
prevailing  at  the  time  of  the  estimate.  The  effect  of  possible  future
improvements  in  economic  conditions  and  technological  developments  can be
expressed by allocating  appropriate  quantities of reserves to the probable and
possible classifications.

Definition - Probable Reserves
Probable   reserves  are  estimates  of  unproved  reserves  which  analysis  of
geological  and  engineering  data  suggests  are  more  likely  than  not to be
recoverable.  For estimates of probable reserves based on probabilistic methods,
there  should be at least a 50%  probability  that the  quantities  of  reserves
actually  recoverable  will equal or exceed the sum of the estimated proved plus
probable reserves.
    Probable reserves may include:

     1.   reserves in formations known to be productive where SEC regulations

          limit recognition of proved reserves to direct-offset locations one

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          legal spacing-unit away from a producing well;

      2. reserves anticipated to be proved by normal step-out drilling where

          subsurface control is currently inadequate to classify these

          reserves as proved;

      3. reserves in formations that appear to be productive based on

          well-log characteristics but lack core data or other definitive

          tests to indicate productive potential and which are not analogous

          to producing or proved reserves in the area;

      4. incremental reserves attributable to infill drilling that could have

          been classified as proved if closer statutory spacing had been

          approved at the time of the estimate;

      5. reserves attributable to improved recovery methods that have been

          established by repeated commercially successful applications where:

            a. a project or pilot is planned but not in operation; and

            b. rock, fluid and reservoir characteristics appear favorable for

               commercial application;

      6. reserves in an area of the formation that appears to be separated

          from the proved area by faulting and where geologic interpretation

          indicates that the area is structurally higher than the proved area;

      7. reserves attributable to future workover, treatment, re-treatment,

          change of equipment, or other mechanical procedures, where such

          mechanical procedure has not been proved successful in wells which

          exhibit similar behavior in analogous reservoirs; and/or

      8. incremental reserves in proved reservoirs where an alternative

          interpretation of performance or volumetric data indicates more

          reserves are present than can be classified as proved.

Definition - Possible Reserves
Possible   reserves  are  estimates  of  unproved  reserves  which  analysis  of
geological  and  engineering  data suggests are less likely to be recovered than
probable  reserves.  For estimates of possible  reserves based on  probabilistic
methods,  there  should be at least a 10%  probability  that the  quantities  of
reserves actually recovered will equal or exceed the sum of the estimated proved
plus probable plus possible reserves.

Possible reserves may include:

      1. reserves which, based on geological interpretations, could possibly

          extend beyond areas classified as probable;

      2. reserves in formations that appear to be petroleum bearing based on

          log and core analysis but may not be productive at commercial rates;

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      3. incremental reserves attributed to infill drilling that are subject

          to technical uncertainty;

      4. reserves attributed to improved recovery methods where:

            a. a project or pilot is planned but not in operation; and

            b. rock, fluid and reservoir characteristics are such that there

               is a reasonable doubt that the project will be commercial;

               and/or

      5. reserves in an area of the formation that appears to be separated

          from the proved area by faulting and where geological interpretation

          indicates the area is structurally lower than the proved area.


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
The SEC has generally permitted oil and gas companies,  in filings made with the
SEC, to disclose only proved reserves that a company has  demonstrated by actual
production  or  conclusive  formation  tests  to  be  economically  and  legally
producible under existing  economic and operating  conditions.  We use the terms
"probable" and "possible"  reserves or other descriptions of volumes of reserves
potentially  recoverable through additional drilling or recovery techniques that
the SEC's  guidelines  may  prohibit us from  including in filings with the SEC.
These  estimates are by their nature more  speculative  than estimates of proved
reserves  and  accordingly  are subject to  substantially  greater risk of being
actually realized by the company.

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
the Company's  Annual Report on Form 10-K filed with the Securities and Exchange
Commission on March 3, 2006.

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


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