3 sentences

1. 那座油井正在开采原油。

   nà zuò yóu​jǐng zhèng​zài kāi​cǎi yuán​yóu.

   That oil well is extracting crude oil.

   Source: Dong Chinese Dictionary

2. 这个国家拥有丰富的原油资源。

   zhè gè guó​jiā yōng​yǒu fēng​fù de yuán​yóu zī​yuán.

   This country possesses abundant crude oil resources.

   Source: Dong Chinese Dictionary

3. 由于供应不足，原油每桶的价格上涨了。

   yóu​yú gōng​yìng bù​zú, yuán​yóu měi tǒng de jià​gé shàng​zhǎng le.

   Due to insufficient supply, the price of crude oil per barrel has risen.

   Source: Dong Chinese Dictionary