TY JOUR TI The problem of forecasting the profits of oil and gas companies in conditions of economic uncertainty KW financial performance KW oil and gas industry KW oil price KW oil and gas revenues KW forecasting KW financial condition KW net profit KW OPEC countries KW oil producing companies JO Russian Journal of Management AU Gusev, A.A. AU Korableva, V.V. PY 2024 IS 12 PB Publishing Center RIOR