[Formation of molecular hydrogen by the action of stratal microflora on oil]

Methane and carbon dioxide were produced during the growth of a methane forming bacterial biocenosis from oil-bearing strata in the cultural broth of hydrocarbon oxidizing microorganisms grown in a medium with methane-naphthene oil. Molecular hydrogen can be produced by fermenting microorganisms isolated from stratal water in the course of their growth in the cultural broth of hydrocarbon oxidizing bacteria cultivated in media with methane oil, methane-naphthene oil and naphthene-aromatic oil.