Ключевые слова: bluecollar worker, builder, color image, construction, contractor, crude oil, drill, drilling, drilling rig, engineer, engineering, equipment, factory, foreman, forklift, fuel and power generation, gasoline, hard hat, helmet, horizontal, industrial, industry, job, machine, mechanic, men at work, natural gas, occupation, oil, oil field, oil industry, oil well, oil worker, oilfield, persistence, person, petrochemical, refining, repair, rough, safety, site, supervisor, teamwork, vertical, work, work tool, working, workwear,