Correct

油老虎

/ yóu lǎohǔ / 
Strokes

Example

As a Noun

oil or gas guzzler

1
Hànmǎ
悍马
qìchē
汽车
shì
是
zuì
最
yǒumíng
有名
de
的
yóu
油
lǎohǔ
老虎
  
。

Vehicles by Hummer are among the most prominent gas-guzzlers.

As a Noun

oil or gas profiteer