Riverstone Resources Inc.
TSX VENTURE : RVS

Riverstone Resources Inc.

October 11, 2006 11:28 ET

RAB Drilling Confirms New Gold Zone on Kao Permit

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Oct. 11, 2006) - Riverstone Resources Inc. (the "Company") (TSX VENTURE:RVS) is pleased to report the results of a recent Rotary Air Blast ("RAB") drilling program on the Kao permit in Burkina Faso, West Africa. The drilling program was designed to evaluate a 4 kilometre by 1 kilometre gold-in-soil geochemical anomaly. The results from the drilling indicate that the geochemical anomaly is underlain by 3 to 5 sub-parallel gold zones oriented in a general northeast to north-northeast direction. The zones have been traced over a length of 2.70 kilometres and are up to 250 metres wide, and are open to the north and to depth. Most of the holes had a maximum depth of 30 metres and most of the holes ended in mineralization. Based on these encouraging results, the Company is immediately commencing further fill-in RAB drilling to establish targets for testing by reverse-circulation drilling.

Four lines spaced 200 metres apart were drilled across the southern portion of the anomaly and one line was drilled across the northern portion of the anomaly. Holes were drilled at 50 metre centres along the lines. A total of 162 holes were drilled, totaling 4,556 metres. The most significant assays from the drilling program are reported in the table below. All holes are vertical and intervals reported are drilled widths, which may not represent true widths of the mineralized zones.



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FROM TO CORE INTERVAL GRADE
HOLE NO. (metres) (metres) (metres) (g/t)
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KA-06-018 0 30 30 1.35
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Including 6 12 6 2.28
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And 24 30 6 2.11
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KA-06-019 0 30 30 0.44
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Including 24 27 3 1.40
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KA-06-020 0 30 30 1.05
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Including 0 15 15 1.55
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KA-06-021 0 30 30 0.89
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Including 9 12 3 1.35
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And 18 27 9 1.37
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KA-06-022 0 30 30 1.18
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Including 24 27 3 7.58
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KA-06-023 0 30 30 0.73
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Including 18 27 9 1.33
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KA-06-034 0 30 30 0.72
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Including 21 27 6 2.67
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KA-06-041 30 33 3 2.62
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KA-06-042 12 15 3 1.16
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KA-06-043 0 30 30 0.51
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Including 9 12 3 1.64
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And 18 21 3 1.78
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KA-06-049 18 21 3 1.77
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KA-06-064 0 30 30 0.60
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Including 18 30 12 1.45
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Or 21 24 3 4.59
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KA-06-097 0 30 30 0.71
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Including 3 15 12 1.54
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The Kao permit is contiguous with the southern boundary of the Company's Rambo permit. Previous RC drilling on the Rambo permit by the Company delineated a mineralized zone over 350 metres on strike and for 170 metres down dip. Grades within the zone range from 1.16 g/t to 21.4 g/t over widths ranging from 3.0 metres to 18.5 metres. Orezone's Sega property is 25 kilometres southeast of the Kao permit and Golden Star's Goulagou property adjoins Kao on the northwest.

The Company maintains a rigorous quality control program involving the use of repeat assays, check assays at independent labs, and the use of verifiable blanks and standards from an accredited Canadian lab. All soil, rock and RAB samples were assayed using standard fire assay with atomic absorption techniques, at the independent Abilab Burkina SARL laboratories in Ouagadougou, Burkina Faso.

For further information about the Company and its activities in Burkina Faso, please refer to the Company's website at www.riverstoneresources.com and on www.sedar.com.

ON BEHALF OF THE BOARD

Michael D. McInnis, P.Eng., CEO & President

Paul G. Anderson, P. Geo is a 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 the Ontario Securities Act. Forward-looking statements are subject to a variety of risks and uncertainties which could cause actual events or results to differ from those reflected in the forward-looking statements, including, without limitation, 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, title matters and surface access, labour disputes, the potential for delays in exploration activities, the potential for unexpected costs and expenses, commodity price fluctuations, currency fluctuations, failure to obtain adequate financing on a timely basis and other risks and uncertainties, including those described under Risk Factors in each management discussion and analysis. In addition, 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.

The TSX Venture Exchange does not accept responsibility for the adequacy or the accuracy of this release.

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