The peculiarities of synthesis of higher poly(alkyl (meth)acrylate)s bearing C-16-C-26 alkyl fragments are considered, and a comparison of their functioning as depressants for paraffin oils from different deposits is carried out. It is shown that the highest efficiency in oils under study is manifested by the sample of C-16-C-20 poly(alkyl acrylate) with a weight-average molecular mass of 70000.