The following are the biggest percentage gainers on the TSX Venture Exchange in mid afternoon trading with their price movements OCEANIC IRON ORE (FEO.V), $0.14, +0.04, +38.10% EARTHWORKS INDUSTRIES (EWK.V), $0.20, +0.05, +33.33% OCULUS VISIONTECH (OVT.V), $0.52, +0.12, +30.00%