Ключевые слова: barrel, business, construction, crisis, crude, derrick, diesel, drill, drilling, ecology, economic, energy, environment, equipment, exploration, extraction, field, fossil, fuel, gas, gasoline, generation, industrial, industry, machine, machinery, mining, natural, oil, oilfield, oilwell, petrol, petroleum, pipe, pipeline, platform, power, production, pump, pumpjack, refinery, resource, rig, supply, valve, well, wellhead,