The article discusses a very important problem of oil production. Oil, recognized as a major source of economic development, is the main energy source of the modern world. Unfortunately, Poland has limited oil reserves. However, the production, which meets only about 4% of the demand, is carried out. Oil deposits in Poland are found in the Carpathians, in the Carpathian Foredeep, in the Polish Lowlands, and in the Polish Exclusive Economic Zone of the Baltic Sea. Initially, deposits in the Carpathians were of the greatest economic importance, but these are already depleted to a great extent. Currently, oil deposits in the Polish Lowlands are of the greatest economic importance. The largest deposit is BMB (Barnowko-Mostno-Buszewo) near Gorzow Wielkopolski. In total, in Poland oil resources amount to 23 598.46 thousand tons, of which 61.37% accounts for industrial resources (14 482.15 thousand tons). The article presents crude oil resources in Poland by regions, i.e. Polish Lowlands, the Carpathians, the Carpathian Foredeep, and the Polish Exclusive Economic Zone The resources were divided into anticipated economic, industrial, undeveloped resources and abandoned deposits. In addition, the three Polish companies involved in the extraction of oil, namely PGNiG S.A., the LOTOS Group S.A. and ORLEN Upstream sp. z o.o., were presented. The locations where exploitation is carried out and the volume of oil production in the last few years were discussed.