Riverstone Resources Inc.

Riverstone Resources Inc.

November 28, 2006 09:30 ET

Riverstone Resources Inc.: Gold Zones Confirmed on KAO Permit

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Nov. 28, 2006) - Riverstone Resources Inc. (the "Company") (TSX VENTURE:RVS) is pleased to report the results of the recent follow-up Rotary Air Blast ("RAB") drilling program on the KAO Exploration Permit in Burkina Faso, West Africa. The drilling program was designed to better define the southern portion of the gold zones discovered during the RAB drilling conducted by the Company in August 2006 (see News Release dated Oct. 18, 2006). The results of the program provide a clearer definition of the orientation of the gold mineralization and confirm the continuity of the zones between lines. Four separate gold zones were defined, grading greater than 1 g/t gold, all of which are a minimum of 200 to 400 metres long by 50 to 150 metres wide, within a much larger lower grade envelope. The lower grade envelope can be traced in a northwesterly direction along strike for 1,100 metres and is 200 to 550 metres wide, suggesting that additional high-grade zones may be discovered with further exploration.

Selected drill intercepts from the follow-up program include:

1.29 g/t gold over 33 metres within 0.81 g/t gold over 60 metres in KA-06-170

1.86 g/t gold over 9 metres within 0.50 g/t gold over 57 metres in KA-06-192

2.03 g/t gold over 18 metres within 0.92 g/t gold over 51 metres in KA-06-201

1.67 g/t gold over 12 metres within 0.51 g/t gold over 51 metres in KA-06-210

All drill holes are vertical and intervals reported are drilled widths, which may not represent true widths of the mineralized zones. As in the first drill program, a number of the holes drilled in the follow-up program ended in mineralization.

The follow-up drilling was designed as an in-fill program on lines spaced at 200 metres, and was successful in better defining the orientation of the higher-grade zones. A total of 2,502 metres was drilled in 51 holes on three lines, with holes again drilled every 50 metres along the lines, but to greater depths of between 30 and 60 metres. Most of the drill holes in this second phase were drilled to the maximum depth possible with the RAB drill, which is generally the base of the oxidized zone.

The 4,556 metre RAB drilling program carried out in August 2006, was reported on by the Company in a News Release dated October 18, 2006. This drilling program was done on lines spaced an average of 400 metres apart with vertical holes drilled every 50 metres.

Selected intersections from the August drill program include:

2.28 g/t gold over 6 metres within 1.35 g/t gold over 30 metres in KA-06-018

1.55 g/t gold over 15 metres within 1.05 g/t gold over 30 metres in KA-06-020

1.37 g/t gold over 9 metres within 0.89 g/t gold over 30 metres in KA-06-021

1.18 g/t gold over 30 metres in KA-06-022

1.33 g/t gold over 9 metres within 0.73 g/t gold over 30 metres in KA-06-023

2.67 g/t gold over 6 metres within 0.72 g/t gold over 30 metres in KA-06-034

0.51 g/t gold over 30 metres in KA-06-043

1.45 g/t gold over 12 metres within 0.60 g/t gold over 30 metres in KA-06-064

1.54 g/t gold over 12 metres within 0.71 g/t gold over 30 metres in KA-06-097

Based on the encouraging results to date, the Company will initiate an Induced Polarization (IP) survey over the 1,100 metre long mineralized zone. This survey will aid in further refining the shape and orientation of these zones, in preparation for a Reverse Circulation drilling program.

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 a strike length of 350 metres 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. As of November 1, 2006, this laboratory is part of the Chemex group of companies.

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.


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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