2 sentences

1. 我为一家石油公司工作。

   wǒ wèi yī​jiā shí​yóu​gōng​sī gōng​zuò.

   I work for an oil company.

   Source: Tatoeba

2. 她丈夫在一家石油公司工作。

   tā zhàng​fu zài yī​jiā shí​yóu​gōng​sī gōng​zuò.

   Her husband works for an oil company.

   Source: CCMatrix