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<http://webisa.webdatacommons.org/399260181>	<http://www.w3.org/ns/prov#value>	"Imperial Oil Ltd. operates the field, which is near the Arctic Circle.Most flowlines at Norman Wells are carbon steel, but Imperial Oil has installed fiberglass pipe in appropriate situations on a case-by-case basis after considering such factors as service and installation conditions, fluid corrosiveness, number of joints needed, service pressure, longevity needed, operating costs, and life-cycle" .
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<http://webisa.webdatacommons.org/399260181>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ogj.com> .
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<http://webisa.webdatacommons.org/prov/396341708>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/399260181> .