<Li> New Pool Wildcat (NPW)--new pools on already producing structure . </Li> <Li> Deeper Pool Test (DPT)--on already producing structure and pool, but on a deeper pay zone . </Li> <Li> Shallower Pool Test (SPT)--on already producing structure and pool, but on a shallower pay zone . </Li> <Li> Outpost (OUT)--usually two or more locations from nearest productive area . </Li>

Which of the following is true about the extraction of oil from conventional oil wells