Riverstone Resources Inc.
TSX VENTURE : RVS

Riverstone Resources Inc.

September 12, 2007 09:30 ET

Riverstone Intersects 22 Metres of 2.61 g/t Gold on KAO

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 12, 2007) - Riverstone Resources Inc. (the "Company") (TSX VENTURE:RVS) is pleased to report results from the second phase of Reverse Circulation ("RC") drilling recently completed on the KAO Exploration Permit in Burkina Faso, West Africa. The recent drill holes continue to intersect wide zones of gold mineralization, within a very large gold-bearing system. This latest drilling confirms that the gold zones are at or near surface, and that they have been traced over a 300 metre strike length, and over a width of at least 300 metres. These zones are open to the north, east and west. Initial indications are that it may also continue to the south at a slightly deeper level. Based on these encouraging results, the Company will carry out a third phase of RC drilling beginning in early October.

The recently completed program comprised 2,096 metres in 22 drill holes. The meterage was increased from the 1,400 metres originally announced, due to strong visual indications of mineralization in some of the drill holes. The highlights are reported in the table below. Intervals reported are drilled widths, which may not represent true widths of the mineralized zones.



---------------------------------------------------------
Hole From To Hole Interval Grade
Number (metres) (metres) (metres) (g/t Au)
---------------------------------------------------------
KAO-07-RC-027 18 36 18 0.92
including 34 36 2 3.01
and 68 70 2 1.13
---------------------------------------------------------
KAO-07-RC-028 52 54 2 1.63
and 76 88 12 0.78
including 78 80 2 1.95
---------------------------------------------------------
KAO-07-RC-029 24 44 20 0.95
including 30 44 14 1.18
and 56 62 6 1.27
and 70 72 2 1.87
---------------------------------------------------------
KAO-07-RC-030 48 50 2 1.68
and 72 106 34 1.08
including 72 80 8 1.60
and including 96 104 8 2.20
---------------------------------------------------------
KAO-07-RC-031 48 82 34 1.63
including 52 72 20 2.23
---------------------------------------------------------
KAO-07-RC-032 22 70 48 1.18
including 22 28 6 2.53
---------------------------------------------------------
KAO-07-RC-033 0 50 50 1.47
including 10 32 22 2.61
and including 42 48 6 1.36
---------------------------------------------------------
KAO-07-RC-034 34 36 2 1.05
---------------------------------------------------------
KAO-07-RC-035 122 124 2 1.78
---------------------------------------------------------
KAO-07-RC-037 22 40 18 0.45
---------------------------------------------------------
KAO-07-RC-039 0 2 2 2.24
---------------------------------------------------------
KAO-07-RC-042 34 44 10 0.55
including 40 42 2 1.56
---------------------------------------------------------


The recent drill program was designed to infill, at 100 metre line spacing, gold zones that had been defined along 200 metre spaced lines during the first round of RC drilling earlier this year (to see accompanying sketch please click on: http://www.ccnmatthews.com/docs/rvs0912map.pdf). These earlier drill holes returned the following intercepts: 1.20 g/t gold over 8 m in 07-RC-001, 1.69 g/t gold over 12 m in 07-RC-002, 1.36 g/t gold over 24 m and 1.26 g/t gold over 10 m in 07-RC-004, 1.22 g/t gold over 30 m in 07-RC-006, 3.55 g/t gold over 10 m in 07-RC-012, and 1.03 g/t gold over 12 m in 07-RC-014 (see News Releases dated April 04 and 16, 2007).

Previous drill programs conducted by the Company indicate the presence of several other sub-parallel gold zones, all within a larger gold-in-soils geochemical anomaly, which has a minimum strike length of four kilometres. The KAO permit is contiguous with the southern boundary of the Company's Rambo permit, where previous RC and core drilling by the Company delineated a gold zone over a strike length of 350 metres. It contains gold grades from 1.16 g/t to 21.4 g/t over widths ranging from 3.0 metres to 18.5 metres. Golden Star's Goulagou property adjoins KAO on the northwest and Orezone's Sega property is 25 kilometres southeast of the KAO permit.

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 lab. 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.

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.

Contact Information

  • Riverstone Resources Inc.
    Michael D. McInnis
    President
    (604) 801-5020
    (604) 801-6075 (FAX)
    or
    Riverstone Resources Inc.
    Raju Wani
    Investor Relations
    (403) 240-0555
    or
    Riverstone Resources Inc.
    Ron Cooper
    Investor Relations
    (604) 986-0112
    Email: info@riverstoneresources.com
    Website: www.riverstoneresources.com