Ключевые слова: accumulation, barrel, borehole, ca, california, chemistry, chink, concept, deposit, desert, digging, economy, energetic, engineering, environment, exploitation, exploration, extraction, fossil, fuel, geological, hole, industry, landscape, ledge, los angeles, machine, mineral, mining, oil, oil derrick, petroleum, pipe, power, pressure, production derrick, pump, refinery, reservoir engineering, resource, rig, spoil, station, technology, tool, tower, treasures of the soil, usa, well, work,