we explain how the pumpjack converts rotary motion from a motor into vertical motion that drives a sucker rod deep into the well. That rod connects to a downhole pump that lifts oil to the surface ...

The Anshof-2A ("ANS-2A") side track oil appraisal well located in the ADX ... with the installation of production tubing and a rod pump in early October. It will then be tied-in to the Anshof ...