PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • uncertainties, including oil and natural gas prices, the availability of capital, costs, drilling results, regulatory approvals and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom
  • getfilings.com