"Нефтяной" is a Russian word that translates to "oil" in English. It refers to substances derived from crude oil, which is a natural resource found deep within the Earth. Oil is a vital energy source used for fuel, heating, and the production of various products, including plastics and chemicals. The oil industry plays a significant role in the global economy, impacting countries like Россия and Саудовская Аравия, which are major oil producers. The extraction, refining, and distribution of oil create jobs and drive technological advancements, but it also raises environmental concerns, such as pollution and climate change.