About: http://webisa.webdatacommons.org/47427305

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Remaining oil is growing ever more expensive to extract, requiring Shell and other oil companies to make larger investments in a business already saddled with huge costs, he said.
http://www.w3.org/ns/prov#wasQuotedFrom	royaldutchshellplc.com