Ключевые слова: background, barrel, benzine, black, business, derrick, diesel, drill, drilling, drop, energy, environment, equipment, extraction, flat, fuel, gas, gasoline, icon, illustration, industrial, industry, isolated, jack, oil, oilfield, petrol, petroleum, pipe, pipeline, pollution, power, production, pump, pumpjack, refinery, rig, set, sign, silhouette, station, supply, symbol, tank, tower, transportation, well, white,