How long is it taking to replace the oil we are using?

Question: How long is it taking to replace the oil we are using?
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  oil
  
  replace
Asked by Mason to Olivia on 8 Nov 2016.
- Olivia Ashton answered on 8 Nov 2016:
  
  Oil is a finite commodity – i.e. it will run out. ‘Replacement’ oil is found by finding new well sites where there is oil, so once a well is dry its dry, more oil wont come back. It is made from millions of years of dead organisms (plants/animals) being crushed under immense pressure and temperature as layers of sediment and rock piled on top.

Question: How long is it taking to replace the oil we are using?