This dictionary contains terminology and abbreviations related to oil and gas geology and geophysics, well drilling, technological process of well pumping; collection, development of oil and gas fields; transportation and storage of oil and gas; construction and operation of pipe-lines, compressor stations and other objects; oil chemistry and oil refinery; operation, technical maintenance, provision of reliability, repair, standardization and certification of oil and gas equipment; economics of oil and gas industry... Have I forgotten something? It's a good dictionary well deserving its 5-star rating.