VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 09/17/12 -- Riverstone Resources Inc. (TSX VENTURE: RVS)(OTCQX: RVREF)(FRANKFURT: 3RV) ("Riverstone" or the "Company") is pleased to announce that it has today filed via SEDAR a NI 43-101 compliant Technical Report titled, Preliminary Economic Assessment Report for the Karma Project, Burkina Faso, West Africa, dated effective August 2, 2012 (the "Technical Report"), to
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