Oil and Gas Exploration and Production AD, together with its subsidiaries, engages in the prospecting, exploration, development, and exploitation of oil and gas fields in Bulgaria and internationally. It prospects, explores, produces, and markets crude oil and gas; and thermal, mineralized and underground water for human consumption, household, and industrial purposes, as well as involved in prospecting and exploration of geothermal energy fields. The company also engages in the exploration and production well drilling for oil and gas, underground water and geothermal energy; and offers scientific research and engineering, specialized, and foreign trade services. In addition, it provides mechanization and automation of technological processes; oil and condensate processing; and geological and geophysical services for ores and minerals prospecting and exploration. Further, the company offers information services including specialized foreign trade and engineering, technical assistance, transportation, and consultancy services, as well as designs, produces, and service operations for geological and geophysical sectors. Additionally, it engages in the construction of oil and gas pipelines; and installation and assembly of high pressure operations equipment, as well as provides patents, leasing, trade, transportation, and maintenance services. The company was founded in 1991 and is headquartered in Sofia, Bulgaria.