The feasibility of processing heavy-oil resid by mechanochemical action is explored. It is shown that hydrocarbon destruction and condensation processes occur in equal measure. The n-paraffins C-6-C-16 are subject to destruction, and the condensation processes are associated with alkylation of aromatic hydrocarbons by paraffin-destruction products. C16+ paraffins are formed during mechanochemical destruction of the paraffins.