<http://webisa.webdatacommons.org/166113291>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<vanguardngr.com> .
<http://webisa.webdatacommons.org/prov/69807691>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/166113291> .
<http://webisa.webdatacommons.org/166113291>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/166113291>	<http://www.w3.org/ns/prov#value>	"The group does not provide timely official production figures, so the oil industry relies on supply estimates from news agencies, consulting firms and organisations such as the International Energy Agency." .