If the organic material decays or is oxidized, it will not form petroleum.(如果有機物腐爛或氧化，它不會形成石油。)

Petroleum is oil based.(石油是油性的。)

It contains resmethrin, piperonyl butoxide and a petroleum distillate.(它含有滅蟲菊，增效醚和石油餾出物。)

Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective.(正如我們在上世紀70年代的石油危機后開始更加重視石油一樣，如今我們必須開始從一個全新的經濟視角看待水資源。)

The OLEX Petroleum Company has recently determined that it could cut its refining costs by closing its Grenville refinery and consolidating all refining at its Tasberg refinery.(OLEX石油公司最近決定通過關閉其格倫維爾煉油廠并整合其塔斯伯格煉油廠的所有煉油來削減煉油成本。)

A large petroleum refinery here is supplied by imported petroleum which is received at the city's deep-water port.(這里的一個大型煉油廠是由從這個城市的深水港進口的石油供應的。)

In fact, any new source of energy will be very welcome, as there is already a shortage of petroleum.(事實上，任何新的能源都將受到歡迎，因為石油已經短缺。)

Finally, the refining and burning of petroleum and its products can cause air pollution.(最后，石油及其產品的提煉和燃燒過程會造成空氣污染。)

Petroleum, consisting of crude oil and natural gas, seems to originate from organic matter in marine sediment.(石油由原油和天然氣組成，它們似乎來源于海洋沉積物中的有機物質。)

Meanwhile, there are few who're willing and able to perform jobs requiring a petroleum engineering major, so the value of one more of those people is very high.(同時，很少有人愿意并且有能力勝任石油工程專業的工作，所以這些人的價值非常高。)