Ключевые слова: bolt, construction, crude, drilling, economy, energy, environment, equipment, exploration, extract, extracting, extraction, facility, field, fuel, gas, gasoline, industrial, industry, machine, mineral, money, nodding, oil, oilfield, petroleum, pipe, pipeline, pipework, platform, power, production, profit, pump, pumping, pumpjack, raw, refinery, resource, rig, rocking, technology, tool, unit, work,