Ключевые слова: barrel, black, collection, crude oil, destruction, diesel, dollar, electricity, energy, environmental conservation, factory, fire, flaring, fossil fuel, fuel, fuel pump, fuel tanker, gas, gasoline, generation, global warming, icons, illustration, industrial, industry, isolated, oil, oil drum, oil pump, oil rig, oil tanker, petroleum, pipe, plant, power, power supply, pump, refinery, set, ship, silhouettes, smoke, steam, storage, tank, tanker, toxic, transportation, valve, well,