The following are the biggest percentage gainers on the TSX Venture Exchange in mid afternoon trading with their price movements EVRIM RESOURCES (EVM.V), $0.2050, +0.0750, +57.69% RAIMOUNT ENERGY (RMT.V), $1.50, +0.50, +50.00% ALVOPETRO ENERGY (ALV.V), $0.35, +0.08, +29.63% SOUTHERN