Primary oil recovery is limited to hydrocarbons that naturally rise to the surface, or those that use artificial lift devices, such as pump jacks ... % of the oil in the well.

One of the big cost drivers operating an oil well now is ... Scott Armstrong: How does your maintenance program differ from what is currently required for your average Pump Jack and how does ...

If you don't know jack about pumpjacks, here's a primer on the thousands of oil well sites that mark the holes drilled in Oklahoma the past century.