%0 Journal Article %T Integrated approach to assessing the efficiency of human capital investment in the oil and gas industry %A Andreeva, A.A. %A Markeeva, V.A. %K human capital, oil and gas industry, personnel costs, operational efficiency, assessment model, profitability, financial indicators, social indicators, motivation methods, staff turnover, strategic management %J Economic and Social Research %D 2025 %N 12 %P 12 %I National Research University of Electronic Technology