Ключевые слова: assistance, blue, business, caucasian ethnicity, construction, controls, drilling, energy, engineer, equipment, folder, fossil, fuel, gas, helmet, industrial, inspector, job, maintenance, man, manager, mining, monochromatic, oil, oil field, oil industry, oil rig, oil well, oilman, outdoors, petroleum, platform, power, power generation, production, pump, pump jack, repairman, rig, silhouette, sunrays, technology, toned, uniform, valve, worker,