Chemicals for industrial use, namely, oil field chemicals for controlling bacteria in crude oil production, for removal of residual oil from water in refineries and in crude oil production; chemicals for use in industry, namely, corrosion inhibitors for petroleum and natural gas production plants and processing plants, water-soluble polymers for tertiary crude oil production, pour-point and/or viscosity depressants for crude oils and residual oils, paraffin inhibitors for use in petroleum pro...