This article is devoted to the maintenance of geological databases in Gazprom Neft. The work justifies the need to maintain the quality of data at a high level. The issue of the important role played by data in achieving the company's goals is touched upon. Attention is paid to a number of basic tasks, which are paramount in the work with information. The article describes the history of creating a geological database, the mechanisms of information movement and the results achieved in recent years.