One of the main goals of an upstream company is the efficient reserves involvement into production. Year after year long-term and mid-term drilling program development is complicated by a few negative factors, in particular, decreasing reservoir quality. The major goal of this project is the formulation and application of multifaceted approach in mid-term drilling investment program development process. The need in business process optimization is fueled by a large amount of participants and the requirements in results’ expertize and consolidation, while work is distributed between contracting organizations and research centers. Despite the comprehensive communication pattern, investment program development is complicated by a certain issues, such as: the creation of qualitative and updated geological basis within the areas with high uncertainty degree; increasing fraction of hard to recover reserves; implementation of multivariate calculations; consolidation and processing of constantly increasing amount of data. This article is dedicated to the question of improvement and modernization of business process for long-term and mid-term investment programs development. Developed approach in investment program planning provided increasing efficiency of participant communication, and the principle of continuous improvement increased project results quality. Principle part of the project was concentrated within three major stages: geological basis creation and actualization, development plan optimization stage and the drilling program development. The main ideas, key issues and decisions aimed at business process optimization, are also presented in this article and described in details. Along with communication coordination between participants and information consolidation, optimized business process simplified the approval procedures at each stage. In parallel, there is a description of Gazpromneft NTC products, which were used in order to fulfill the project. Improved business process is one of the key achievements of this project, its competitive gain is the ability to adapt drilling investment program in a very short time due to the changing external factors, despite the amount of participants. This is of particular importance in the period of oil prices volatility. Developed in this way drilling investment program is optimal in term of both: technological land economical parameters, but also it takes into account all possible geological risks.
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