Riverstone Intersects 26 Metres Averaging 1.34 g/t Gold at the Kao Zone on the Karma Project

VANCOUVER, 10/31/11 -- Riverstone Resources Inc. (TSX VENTURE: RVS) (OTCQX: RVREF) (PINK SHEETS: RVREF) (FRANKFURT: 3RV) is pleased to report additional results from 9 diamond drill holes from the on-going diamond drill program on the Kao Zone, which forms part of the company's flagship Karma Gold deposit in Burkina Faso, West Africa. (See Maps on Website: http://www.riverstoneresources.com/i/pdf/2011-10-28_NRM.pdf). The diamond drilling program on Kao is designed to test and upgrade known mineralized zones and to explore down dip and to the east from the existing resource. These results confirm the existing mineralization and also extend the mineralized zones up to 150 metres along strike to the east and down dip beyond the existing resource. The deposit remains open along strike to the east and down dip. It is significant that all of the 9 holes have intersected potentially economic grades and widths. Drilling is currently in progress to further confirm and extend the known mineralization.

Significant assay intervals are as follows:

- 1.34 g/t Au over 26.0 metres
- 1.11 g/t Au over 28.0 metres including 1.59 g/t Au over 14.0 metres
- 1.7 g/t Au over 8.0 metres
- 1.29 g/t Au over 10.0 metres and 2.18 g/t Au over 8.0 metres
1.51 g/t Au over 8.0 metres


'These results continue to be very encouraging and exciting to the overall project,' commented M.D. McInnis, CEO of Riverstone. 'Kao is a shallow dipping zone and we are confirming and extending the presence of good grade gold mineralization along strike and down dip from the existing known resource. We expect that a substantial increase in the potential open pittable resource can be achieved by drilling that is planned to increase the overall resource.'

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

KAO-DD-11-018             38.0           40.0            2.0           1.05
and                      126.0          132.0            6.0           0.67
and                      172.0          178.0            6.0           1.73
including                172.0          174.0            2.0           4.40
and                      188.0          190.0            2.0           1.07
and                      196.0          212.0           16.0           0.65
including                206.0          212.0            6.0           0.88

KAO-DD-11-019             38.0           50.0           12.0           0.94
including                 40.0           44.0            4.0           2.25
and                       82.0           94.0           12.0           0.58
including                 88.0           92.0            4.0           1.09
and                      108.0          114.0            6.0           1.12
and                      128.0          130.0            2.0           1.25
and                      146.0          150.0            4.0           0.86
and                      186.0          196.0           10.0           0.58

KAO-DD-11-020             88.0           92.0            4.0           0.94
and                      118.0          124.0            6.0           0.58
and                      136.0          176.0           40.0           0.65
including                136.0          144.0            8.0           1.51
and                      244.0          246.0            2.0           1.58

KAO-DD-11-021            144.0          148.0            4.0           0.91
and                      160.0          186.0           26.0           1.34

KAO-DD-11-022            Previously released July 18, 2011

KAO-DD-11-023            190.0          204.0           14.0           0.61

KAO-DD-11-024             24.0           26.0            2.0           1.20
and                      112.0          140.0           28.0           1.11
including                116.0          130.0           14.0           1.59
and                      152.0          162.0           10.0           0.69
and                      182.0          190.0            8.0           0.71

KAO-DD-11-025             64.0           80.0           16.0           0.44
and                       88.0           96.0            8.0           1.70
including                 88.0           92.0            4.0           2.59
and                      108.0          132.0           24.0           0.41
and                      156.0          158.0            2.0           1.40

KAO-DD-11-026             90.0          100.0           10.0           1.30
and                      174.0          182.0            8.0           2.18

KAO-DD-11-027            110.0          134.0           24.0           0.90
including                110.0          114.0            4.0           2.90
and including            128.0          134.0            6.0           1.10
and                      246.0          248.0            2.0           3.58

The Kao deposit is part of the company's Karma Project which comprises 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 an additional 37,000 metres, and it is expected that the results of this drilling will add to the resource.

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 core 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 six high quality exploration projects covering 2,300 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



Paul G. Anderson, P. Geo. 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.
Dwayne L. Melrose, President
604-801-5020

Riverstone Resources Inc.
Raju Wani, Investor Relations
403-240-0555

Riverstone Resources Inc.
Ron Cooper, Investor Relations
604-986-0112

Riverstone Resources Inc.
Don Mosher, Corporate Development
604-685-6465
info@riverstoneresources.com
www.riverstoneresources.com