The innovative development of the fossil mineral resource exploitation industry requires the existence of well-trained specialists both theoretically and practically. It is mandatory today for an engineer - whatever his technical specialty is - to have important digital knowledge in addition to the knowledge strictly related to his specialization. For engineers in direct production activity, this knowledge is necessary to be able to correctly and efficiently exploit the latest generation equipment and installations and to ask specialists in the field to design machines and installations of a superior generation. In addition, mining and petroleum engineers are in a continuous struggle with the unknown. Even if prospecting and exploitation methods have been perfected and modernized, when you work in the depths of the earth, on land or in the seas and oceans, surprises can appear at any time. The activity of exploiting useful mineral substances (solid, liquid, and gaseous) is not comparable to the activity of a factory or plant operating on the surface. It is not simple here either, and there are risks here too, but they are easier to manage. A big challenge for education in the oil and mining fields is attracting young people. This is in the context of promoting the use of green energy sources, which must obviously be done, and which alienates young people, they not understanding the fact that the two energy sources will coexist for a long time and the fact that the jobs in the exploitation of fossil mineral resources will not disappear. In order to understand all this, the paper schematically addresses the issue related to the analysis of the personality structure of the mining/petroleum engineer, the factors that determine personal development, the evaluation criteria of personal development, and his technological culture. In this sense, the basic qualities, attitude, and skills necessary for the mining/petroleum engineer are analyzed.