The research area is in the northern part of the Bjelovar subdepression. Three wells were drilled in this area: B-1, B-2, and B-3. Two gas accumulations were discovered in well B-1, within the Pepelan sandstone, which is a member of the Kloštar Ivanić formation. No significant occurrences of hydrocarbons were proven in wells B- 2 and B-3, except for gas in very small percentages. Based on the analysis of simple and combined seismic attributes, and primary and secondary AVO (Amplitude versus offset) attributes of two resevoirs and associated lithostratigraphic equivalents, it was concluded that well B-1 is in the range of increased amplitudes on almost all attributes. A distinction between positive and negative wells is shown by the secondary AVO attributes Sign (Intercept) * gradient and Intercept * Gradient, and their application may be useful for future gas reservoir exploration. The results of the analysis of the values of selected properties (spontaneous potential, density, resistivity, velocity) using neural networks show similar results in the positive B-1 well. Comparative interpretation of the geometric attribute of coherence and the combined seismic attribute of spectral decomposition together with the attribute obtained by the AVO RGB Blending method more clearly describes the faults, channel contours, channels and turbidite fans in the south and southeast of the analyzed area. and this type of application would be useful for as accurate an interpretation as possible in future research.