The relevance. Gas(oil)height is the major geological parameter. Firstly, it is used to calculate reserves. The accuracy of reserve estimation strongly depends on the accuracy of this parameter model. Secondly, the map of gas(oil)height is the base to plan wells and recovery methods. This determines the relevance of the work. The aim of the research is to develop the algorithm of effective gas heights modeling in conditions of small number of well data. Particularly when the well data extremely uneven arranged in the modeling area and there is no measurements in the dome of the deposit. Research methods: methods of statistical analysis, local interpolation, aggregation measurements with indirect information, methods of detailed correlation, deterministic and stochastic methods for modeling geological parameters. Results. It is shown that in the upper part of the PK1 reservoir of Yamburg field the clay and silt interlayers are strongly observed. The existing methods of modeling do not allow simulating a model with an acceptable accuracy, for example when the grid of wells is extremely irregular (there are not many wells, less than or equal to 4) on the early stages of exploration. Especially in the cases when the dome of the reservoir is worse represented with well data. For the reservoir PK1 of Yamburg field the authors have revealed the regressive dependence of the effective height on the general ones. The authors proposed the technique of modeling gas effective heights, where the regressive dependence of the effective height on the general ones is used as additional indirect information. The model of gas effective heights of PK1 reservoir in Vostochno-Kharvutinskaya area of Yamburg field was built according to the technique. The comparison of the models of gas effective heights by the proposed technique and by the model based on three/dimensional model built by the stochastic method using an extended set of measurements showed good internal convergence.