<http://webisa.webdatacommons.org/151898492>	<http://www.w3.org/ns/prov#value>	"In terms of oil, China strengthens the expansion towards deep sea field in recent years; as for natural gas, it makes certain achievements in western regions; in addition, the exploration and development of unconventional oil and gas such as shale gas and coal bed gas also intensify." .
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<http://webisa.webdatacommons.org/151898492>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<marketresearch.com> .
<http://webisa.webdatacommons.org/prov/281611024>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/151898492> .