Ключевые слова: background, black, building, construction, crane, development, drill, drilling, energy, environmental, equipment, exploration, fuel, gas, gasoline, generation, graphic, icon, illustration, industrial, industry, line, natural, ocean, offshore, oil, orange, petroleum, pipe, platform, pollution, power, pump, rig, sea, silhouette, single, stencil, structure, symbol, template, tower, unstable, water, well,