<http://webisa.webdatacommons.org/173062309> <http://www.w3.org/ns/prov#value> "At the same time, innovative drilling techniques are unlocking vast reservoirs of crude oil and natural gases in such places as North Dakota, Ohio and Pennsylvania." . <http://webisa.webdatacommons.org/prov/89332948> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/173062309> . <http://webisa.webdatacommons.org/173062309> <http://www.w3.org/ns/prov#wasQuotedFrom> <jdnews.com> . <http://webisa.webdatacommons.org/173062309> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/68549013> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/173062309> . <http://webisa.webdatacommons.org/prov/117003997> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/173062309> .