This is a continuation of an earlier work which described commercial batches of kukersite in terms of oxidative kerogen destruction. The low concentration of bitumen in the kerogen and its group composition indicate that this bitumen is syngenetic. The authors studied the way in which the bitumen and kerogen are structurally connected. They also analyzed four commercial batches of kukersite and asphaltite, the organic-rich dark-colored layer found in the middle of the kukersite strate. Whereas American studies of Colorado shales containing 10-20% bitumen from organic matter have indicated, based on the identical structures of the bitumen and kerogen that there is a genetic relationship between them, the present study rarely found such structural elements in the bitumen and kerogen. The kukersite contained little bitumen--0.7% of the total organic matter. The authors believed that the different composition of the bitumen and kerogen does not prove that they are epigenetic. Kukersite also fails to follow the rule that the paraffins of ancient shales have KHapprox.1 and carbon chains shorter than C/sub 22/.