Oil workers drilling for oil on rig

industry oil rig oil drill oil worker helmet standing working assistance cooperation teamwork expertise protection safety drilling oil industry power equipment overalls protective workwear power occupation oil field petrol fossil fuel fuel and power generation hard hat oil young men mid adult men only men glove horizontal outdoors day men side view waist up 30 34 years 20 24 years two people petroleum roughnecks platform african american ethnicity caucasian ethnicity work helping skill safe youngsters males people males people men males people daytime