Under the exploration drilling for oil and gas is understood drilling of all known types (keyhole, parametric, prospecting and exploration) drilling rigs, rotary, turbine and means for regional research and exploration associated with the development of oil and gas field

Under the exploration drilling for oil and gas is understood drilling of all known types (keyhole, parametric, prospecting and exploration) drilling rigs, rotary, turbine and means for regional research and exploration associated with the development of oil and gas field