Dezhou United Petroleum Technology Corp. ("DUPT", stock code: 301158) was founded in 1961. As a comprehensive petroleum equipment manufacturer integrating R&D, production, operation and service, it is committed to providing first-class tools, equipment and engineering technical services for energy exploration and development. It leads the industry in fields of oil, natural gas, shale gas, coalbed methane, geothermal drilling and directional crossing, creating higher value for customers!