oil pierces the $70-a-barrel barrier and natural gas prices quadruples ever since the late 1990s.4

题目

oil pierces the $70-a-barrel barrier and natural gas prices quadruples ever since the late 1990s.4
oil pierces the $70-a-barrel barrier and natural gas prices quadruples ever since the late 1990s.
我这么翻译对吗?
语言点：
1—pierce：动词.刺穿,突破.
2—$70-a-barrel barrier .barrel：名词.桶.$70-a-barrel 70美元一桶.
barrier：名词.栅栏,障碍物,屏障.
3—oil pierces the $70-a-barrel barrier ：油的（价格）突破了70美元一桶的屏障.
4—quadruple ：动词.成4倍.
5—ever since ：从那时起.
6—the late 1990s：90年代末.
7— natural gas prices quadruples ever since the late 1990s.
翻译：从90年代末,天然气的价格达到了4倍.

答案

自90年代末至今,石油突破70美元一桶大关,天然气价格翻了两番.