Riverstone Intersects 1.33 g/t Au over 52 Metres on the Karma Project

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 12/07/11 -- Riverstone Resources Inc. (TSX VENTURE: RVS)(OTCQX: RVREF)(FRANKFURT: 3RV) is pleased to report results from a further 21 Reverse Circulation ('RC') drill holes on the Goulagou I Zone, which forms part of the Company's flagship Karma Gold project in Burkina Faso, West Africa. (See Map at www.riverstoneresources.com/i/maps/111206-100504_GGI_Plan.jpg). This drilling was designed to infill the deposit at 50 metre spacing and also to expand the mineralized zone along strike. These latest results have extended the Goulagou I deposit a further 150 metres to the west, and the deposit remains open along strike in both directions and at depth. Mineralization has been extended to a distance in excess of 2,100 metres on this deposit and the width of the mineralized zone varies from 50 metres at the east end up to 300 metres in the west.

Significant assay intervals are as follows:

--  1.33 g/t Au over 52 m, including 2.38 g/t Au over 12 m, in RC-254
--  1.10 g/t Au over 16 m in RC-252
--  1.05 g/t Au over 12 m, 2.37 g/t Au over 6 m and 1.39 g/t Au over 10 m in
    RC-234
--  1.55 g/t Au over 10 m and 0.79 g/t Au over 18 m in RC-237
--  1.40 g/t Au over 8 m in RC-244

'We are impressed to see higher grade gold mineralization that extends the overall strike length of the Goulagou I deposit which continues to be expanded and it is still open along strike,' commented Dwayne Melrose, President of Riverstone. 'Riverstone is systematically expanding and defining the deposit for the upcoming future resource estimation.'

Significant results are presented in the following table:

                                        Average
               Interval (m) Intercept     Grade
Hole number      From    To  (metres)  (g/t Au)

GLG-11-RC-234      56    68        12      1.05
      and         108   114         6      2.37
   including      108   110         2      5.87
      and         128   134         6      0.54
      and         154   188        34      0.76
   including      164   174        10      1.39

GLG-11-RC-235     194   210        16      0.62

GLG-11-RC-236     100   118        18      0.79

GLG-11-RC-237     164   174        10      1.55
      and         188   204        16      0.77

GLG-11-RC-242      84    88         4      0.91
      and         200   206         6      0.61

GLG-11-RC-243     196   206        10      0.53

GLG-11-RC-244      94    96         2      0.72
      and         116   124         8      1.40

GLG-11-RC-247      80    82         2      3.50

GLG-11-RC-250      18    20         2      0.99

GLG-11-RC-251       6     8         2      3.01
      and          72    74         2      3.13
      and         180   192        12      0.65
      and         200   202         2      0.93

GLG-11-RC-252      72    84        12      0.71
      and         104   128        24      0.63
      and         134   150        16      1.10

GLG-11-RC-254      26    78        52      1.33
   including       36    48        12      2.38
      and          90   106        16      0.60
      and         132   136         4      0.51

Note: Drill holes RC-238, RC-239, RC-240, RC-241, RC-245, RC-246, RC-248,
RC-249 and 253 reported either low grade values or no significant results.
Interpreted true widths for RC-234 to RC-237, RC-250 and RC-251 are between
90 and 100 percent, for RC-252 and RC-254 are between 70 and 80 percent, and
for RC-242 and RC-247 are uncertain but probably between 50 and 60 percent.

The Goulagou I deposit is part of the Karma Project which comprises six contiguous permits. The Company has a 100% interest in two of the permits and has an option to acquire an indirect 90% interest in the remaining four permits. The Karma Project has a NI 43-101 compliant gold resource of 810,600 ounces of gold in 22,845,000 tonnes grading 1.10 g/t gold in the indicated category and 1,119,100 ounces of gold in 44,100,000 tonnes grading 0.79 g/t gold in the inferred category. (See news release dated February 28, 2011). Since the resource was calculated in February 2011, the Company has drilled in excess of an additional 40,000 metres at Karma, and it is expected that the results of this drilling will add to the resource. The Goulagou property is subject to an Option to Purchase agreement with Golden Star Resources Ltd.

Riverstone maintains a quality control program involving the use of repeat assays, inserted blanks and the use of certified standards from an accredited Canadian laboratory. All RC samples were assayed using standard fire assay with atomic absorption techniques, with samples grading over one gram gold per tonne re-assayed with a gravimetric finish, at the independent Abilab Burkina SARL laboratories in Ouagadougou, Burkina Faso, which is part of the ALS Chemex group. Riverstone Resources Inc. is active in gold exploration in Burkina Faso, West Africa, where the Company holds an extensive portfolio of three high quality exploration projects covering 1,452 square kilometres. For further information about the Company and its activities, please refer to the Company's website at www.riverstoneresources.com and under the Company's profile at www.sedar.com.

ON BEHALF OF THE BOARD

Michael D. McInnis, P. Eng., 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 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.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contacts:

Riverstone Resources Inc. - Vancouver Office

Dwayne L. Melrose

President

604-801-5020
info@riverstoneresources.com


Riverstone Resources Inc. - Vancouver Office

Don Mosher

Corporate Development

604-685-6465


Riverstone Resources Inc.

Raju Wani

Investor Relations

403-240-0555


Riverstone Resources Inc. - Vancouver Office

Ron Cooper

Investor Relations

604-986-0112
www.riverstoneresources.com