Harding Shelton Group has a mature shale exploration and development technology with over 50 years history of oil and gas exploration and development in the United States, it is also one of the first companies to participate in U.S. unconventional oil and gas exploration and development (especially shale gas exploration and development). With the constant expansion of the business in the U.S, HSG has introduced the most advanced technology of unconventional exploration and development to China, and has extensive cooperation with Chinese three major oil companies currently. The main businesses consist of unconventional oil and gas exploration, shale gas core testing, shale gas evaluation, unconventional logging interpretation, drilling design and on-site services, the fracturing design and supervision, flowback consulting services, micro-seismic monitoring and other services.