Riverstone Resources Inc. (TSX VENTURE:RVS)(OTCQX:RVREF)(FRANKFURT:3RV)
("Riverstone" or the "Company") is pleased to provide details of the potential
expansion of its Kao Deposit ("Kao") since the most recent resource estimate.
The 100% owned Kao Deposit is part of the Company's Karma Project which
comprises a NI 43-101 compliant in-pit Whittle indicated resource of 1.6 million
ounces of gold in 47.3 million tonnes grading 1.1 g/t gold and an inferred
resource of 0.6 million ounces of gold in 18.9 million tonnes grading 0.93 g/t
gold (see news release dated January 9. 2012 and NI 43-101 Technical Report
titled "Technical Report and Resource Estimate on the Karma Project, Burkina
Faso, West Africa" filed on SEDAR (www.sedar.com) February 23, 2012).


Subsequent to the resource estimate, to date an additional 54,616 metres of
drilling in 293 holes has been completed at Kao. This includes 32,993 metres in
147 diamond core ("DD") holes and 21,623 metres in 146 reverse circulation
("RC") holes.


The post-resource drilling at Kao has included several different phases, as
detailed below:




1.  Within the present resource area, a number of deeper holes, dominantly
    DD holes, have been drilled to further extend the mineralization below
    the limits of the previous drilling included in the January 9th resource
    model;

2.  Several DD holes have extended the deeper zones down-dip to the east;

3.  Based on reported results and visual examination of the drilling the
    mineralization has been extended approximately 350 metres to the north
    along strike;

4.  Based on reported results and visual examination of the drilling the
    mineralization has been extended between 200 to 350 m along strike to
    the south. Of special interest is where recent drilling has occurrences
    of visible gold in drill cuttings, suggesting the emergence of a new
    zone of mineralization;

5.  In addition, there are several widely scattered RC holes to the north
    and west of the deposit, both historical and recent. Some of these holes
    have significant gold mineralized intersections. Follow-up of these
    drill intersections is within the long-term drill plan for Kao.



A map
(http://www.riverstoneresources.com/i/maps/120726-120713_Kao_PortPlan-PostRes.jpg)
posted on the Company's website shows details of the potential expansion of the
mineralization of the Kao Deposit. These drill holes completed at Kao and also
the drilling completed at GGI and GGII (+85,000 metres in total) will be
included in an up-dated resource estimate which is scheduled to be completed in
September 2012.


"We are most encouraged by the drill results that have been released to date and
the potential for the overall expansion of the Kao deposit," commented Dwayne L.
Melrose, President and CEO of Riverstone. "We still have not found the limits of
the Kao Deposit along strike in both directions and also down-dip and our
on-going work continues to expand the deposit. Results of recent drilling will
be included in the upcoming resource estimate scheduled for September 2012. The
Preliminary Economic Assessment for the entire Karma Project is progressing on
schedule and is expected to be released in August 2012." 


Riverstone is active in Burkina Faso, West Africa, where it holds a portfolio of
four high quality exploration projects covering in excess of 2,000 square
kilometres. Addition information about the Company and its activities may be
found on the Company's website at www.riverstoneresources.com and under the
Company's profile at www.sedar.com. 


ON BEHALF OF THE BOARD 

Dwayne L. Melrose, President & CEO

Giles R. Peatfield, Ph. D., P.Eng. is the Qualified Person for RVS and has
reviewed and approved the contents of this release.


Certain statements made and information contained in this news release and
elsewhere constitutes "forward-looking information" within the meaning of
Canadian securities legislation. Forward-looking statements are based on certain
assumptions and are subject to risks and uncertainties which could cause actual
events or results to differ from those reflected in the forward-looking
statements, including, without limitation, with respect to statements regarding
the updated resources estimate, the assumptions set forth in this news release
and in the Company's news release of January 9, 2012, and risks and
uncertainties relating to the interpretation of drill results and the estimation
of mineral resources, the geology, grade and continuity of mineral deposits, the
possibility that future exploration, development results will not be consistent
with the Company's expectations, accidents, equipment breakdowns, risk of
undiscovered, title defects and surface access, labour disputes, the potential
for delays in exploration activities, the potential for unexpected costs and
expenses, commodity price fluctuations, currency fluctuations, and other risks
and uncertainties, including those described under Risk Factors in each
management discussion and analysis and in the Company's annual information form
which are available under the Company's profile at www.sedar.com.
Forward-looking information is based on various assumptions including, without
limitation, the expectations and beliefs of management, the assumed long term
price of gold, that the Company will receive required permits and access to
surface rights, that the Company can access financing, appropriate equipment and
sufficient labour and that the political environment within Burkina Faso will
continue to support the development of environmentally safe mining projects.
Should one or more of these risks and uncertainties materialize, or should
underlying assumptions prove incorrect, actual results may vary materially from
those described in forward-looking statements. Accordingly, readers are advised
not to place undue reliance on forward-looking statements.


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