PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The increased fracking stages and proppant and other techniques will be battling the tendency for EUR to decrease as the sweet spots run out of downspacing potential.
http://www.w3.org/ns/prov#wasQuotedFrom
  • peakoilbarrel.com