This article considers three natural bitumen samples and one rock sample in basalts from north Khakasia. All bitumen identified alkanes, alkylcyclohexanes, pregnanes, steranes, seco hopanes, sesqui-, tri- and pentacyclic terpanes, alkylbenzenes, bi-, tri- and tetracyclic condensed aromatic structures. The pentacyclic arens, polyphenyls (up to five phenyl rings), phenyl-substituted naphthalenes, phenanthrenes and pyrenes were identified in the solid bitumen and dispersed organic matter of basalt. The pyrolysis processes with the contact with molten magma had an influence on the bitumen composition in the basalt. The specific conditions of the original organic matter accumulation and biodegradation had an influence on the viscous bitumen.