A study has been made of the hydrocarbon composition of heavy high-resin, high-paraffin, low-sulphur crude oil of the Kamyshldzh field (West Turkmenistan), It has been shown that about a third of the oil components of the crude oil consists of n-alkanes and other compounds containing long unbranched aliphatic fragments (monomethylalkanes, alkylmono- and alkylbicyclanes, alkylbenzenes) in their molecules. The overall group concentrations of naphthenes in the crude oil are lowered by more than a factor of 15, while the concentrations of monoarenes are reduced by two orders of magnitude with an increase in the number of rings in their molecules from 0 to 5. Among the hydrocarbons not forming clathrates with carbamide, compounds containing five rings per molecule were identified. Of the naphthenic-aromatic hydrocarbons, compounds with 4-5 rings per molecule generally predominate. The series of alkanes, mono-, bi- and tricyclanes and also alkylbenzenes in the crude oil range widely from C-11-C-14 to C-47-C-48. The series of remaining hydrocarbons identified in the crude oil are limited to no more than 13 low-molecular weight members.