Most of the time pipelines are used to transport the natural resources to the refinery or the place where they will be sold. People are needed to build the pipelines and bury them in the ground for protection of both the pipeline and the environment. A different one is needed for oil and gas. If the site is near the ocean, large tankers transport the oil and gas in bulk. After the oil and gas have been taken out of the ground they need to be refined before they can be used.
Refining means to remove all of the impurities that are found.
Then the oil and gas can be sold to other companies where it can be made into fuel or gasoline or other products. Companies must try to leave the site as close as possible to what it was like before the camp opened. They must reforest any areas they cleared and clean up any oil spills. This reclamation work is done by people trained in renewable resources and environmental management. There are very strict rules so that there are very few environmental effects from exploration and drilling work.