More samples are taken during completion operations and then from produced oil and water during production.

大多数的样品来源于完井作业以及生产过程中的油、水混合物。

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Therefore, conventional breakers are not required, and the produced oil or gas can act as breakers for this fluid system.

因此，不需要使用常规的破胶剂，采出的油或气就可作为该压裂液体系的破胶剂。

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Some independent thinkers have even produced cars that run on vegetable oil.

一些独立的思想家甚至生产出了使用植物油的汽车。

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The structure produced oil and gas from twenty-four wells.

VOA: special.2009.03.22

The proposed Keystone XL pipeline would carry heavier crude oil produced from tar sands in Canada.

VOA: special.2011.07.08

The greater the pressure, the more oil will be produced.

VOA: special.2009.09.29

The major reason these stocks have performed so well is that there is a glut of domestically produced oil that is pushing down the price refiners have to pay for their feedstock thus widening their margins.

FORBES: Buy The Dip In The Refiners

But it also says, without citing any evidence, that Scotland currently has a bigger trade deficit with countries outside the UK. So if that's true and if that larger deficit were removed, it might mitigate against the impact of the loss of domestically-produced oil.

BBC: Scottish independence: credit where it's due

It sits on the eighth largest crude oil deposits in the world and believe it or not, it even produced more oil than Saudi Arabia back in 2009, according to the US Energy Information Administration.

FORBES: With Oil & Gas Galore, Why Is Russia So Cheap?