Ключевые слова: barrel, black, blue, business, construction, crude, derrick, diesel, drill, drilling, ecology, economy, energy, environment, equipment, exploration, extraction, facility, fuel, gas, gasoline, industrial, industry, machine, nodding, oil, oilfield, oilwell, orange, petroleum, pipe, pipeline, plant, platform, power, pump, resource, rig, rocking, silhouette, sky, storage, sun, sunset, supply, technology, well,