Communicators

Riverstone Expands Kao Main Zone at Karma

April 7, 2008 Symbols: TSXV:RVS Frankfurt: 3RV

Riverstone Resources Inc. (TSXV:RVS, Frankfurt:3RV) is pleased to report results from the fourth phase of reverse circulation (“RC”) drilling on the Kao Main Zone at its Karma gold project in Burkina Faso, West Africa. The latest results confirm the expansion of the gold mineralized zone to the north and northwest. The known area of the mineralized zone has now been increased to approximately 800 metres by 400 metres. The zone is still open to further extension to the north and northwest and at depth to the southeast below 85 vertical metres, which is the limit of the current drilling. (see Figure 1 attached)

The Company also drilled RC holes to test soils anomaly B, approximately 3.2 km northeast of the Kao Main Zone. Near-surface intercepts included 1.22 g/t gold over 4 m and 1.31 g/t gold over 6 m. This zone is believed to represent either the northeastern extension of the Kao Main Zone, or a separate gold zone within a strong northeast trending gold-in-soils anomaly that can be traced for in excess of 6 kilometres. (see Figure 2 attached)

“We are very pleased that drilling continues to expand the mineralized area in the Kao Main Zone”, commented Michael D. McInnis, President of Riverstone. “Mineralization is still open in several directions. The next phase of drilling will test for further extensions in the Kao Main Zone as well as additional gold targets to the north.”

This fourth phase of RC drilling comprised 5,050 metres in 50 holes, most of which were designed to determine further extensions of the shallow oxide gold mineralization at the Kao Main Zone in preparation for an independent resource estimate. Previously reported results from holes 100 to 137 included intercepts of 2.75 g/t gold over 22 m, 1.01 g/t gold over 34 m, 16.7 g/t gold over 12 m, 2.22 g/t gold over 14 m, 1.18 g/t gold over 26 m, and 1.28 g/t gold over 20 m. (see News Releases dated February 28, 2008 and March 10, 2008)

Significant results from holes 138 to 150 are summarized in the table below. All holes were drilled at -60º. Intervals reported are drilled intercepts, which may not represent true widths of the mineralized zones.

Hole Zone From To Hole Interval Grade
Number (metres) (metres) (metres) (g/t Au)

KAO-08-RC-138 Kao Main 54 90 36 1.52
including 74 90 16 2.15


KAO-08-RC-145 Kao Main 72 86 14 0.98


KAO-08-RC-146 Kao Main 20 22 2 1.05


KAO-08-RC-147 Kao Main 12 14 2 2.08

and 34 44 10 1.31
and 58 64 6 1.06




KAO-08-RC-148 Kao Main 42 50 8 0.92
and 76 82 6 1.20
and 88 90 2 1.39
and 98 108 10 0.73


KAO-08-RC-150 Kao Main 36 44 8 0.83


KAO-08-RC-142 Anomaly "B" 14 18 4 1.22


KAO-08-RC-144 Anomaly "B" 20 26 6 1.31


Elsewhere on the Karma project, the Company has recently completed further drilling on the adjacent Goulagou permit, which contains a NI 43-101 compliant indicated resource of 280,000 ounces of gold at a grade of 1.70 g/t and a further inferred resource of 270,000 ounces of gold at a grade of 1.49 g/t (see News Release dated October 11, 2007). Drill results will be released after assays have been received and confirmed.

The Company maintains a rigorous quality control program involving the use of repeat assays, check assays at independent labs, inserted blanks, and the use of verifiable standards from an accredited Canadian laboratory. All RC samples were assayed using standard fire assay with atomic absorption techniques, with samples grading in excess of 2.00 g/t gold 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 high quality exploration permits covering 3,500 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”
______________________________________
Michael D. McInnis, P.Eng., CEO & President

The TSX Venture Exchange does not accept responsibility for the adequacy or the accuracy of this release.
Paul G. Anderson, P. Geo is a Qualified Person for RVS and has reviewed and approved the contents of this release.

For further information contact:

Vancouver Office:
Michael D. McInnis, President 604.801.5020
Email: info@riverstoneresources.com

Investor Relations:
Trent Dahl, Ascenta Capital Partners
Phone: 604.684.4743 extension 228
Toll Free: 1.866.684.4743
Email: trent@ascentacapital.com


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.