IG Seismic Services plc is a United Kingdom-based company engaged in the provision of land and transition zone seismic data acquisition, and data processing and interpretation to the petroleum industry in the Russian Federation, the Commonwealth of Independent States (CIS) and other countries outside of the CIS. The Company's segments are Seismic segment, and Data processing and interpretation (DPI) segment. The Seismic segment includes conducting seismic works with the purpose of search and exploration of oil and gas fields, comprising oilfield seismic works in two or three dimensions, and field seismic works in a land-sea transit zone. DPI segment includes processing of seismic and geophysical data, structural interpretation of results of processing, dynamic processing and interpretation of results of processing. The Company's subsidiaries include JSC Azimuth Energy Services, JSC Geostan, OJSC Naryan-Marseismorazvedka, OJSC Severgeofizika and LLC Geologiya Reservuara, among others.