SCHEMA_NPD-v1.0.ttl 21.5 KB
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# baseURI: http://www.reportinghub.no/np/schema/1.0/npd
# imports: http://www.reportinghub.no/ep/schema/1.0/core
# imports: http://www.reportinghub.no/ep/schema/1.0/facility
# imports: http://www.reportinghub.no/ep/schema/1.0/organization
# imports: http://www.reportinghub.no/ep/schema/1.0/well

@prefix facility:  <http://www.reportinghub.no/ep/schema/1.0/facility#> .
@prefix npd:     <http://www.reportinghub.no/np/schema/npd#> .
@prefix organization:  <http://www.reportinghub.no/ep/schema/1.0/organization#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix rdl:     <http://rds.posccaesar.org/2008/06/OWL/RDL#> .
@prefix sp:      <http://spinrdf.org/sp#> .
@prefix spin:    <http://spinrdf.org/spin#> .
@prefix spl:     <http://spinrdf.org/spl#> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .

<http://www.reportinghub.no/ep/schema/facility#Facility>
      rdfs:subClassOf npd:NPDIndividual .

<http://www.reportinghub.no/ep/schema/facility#Field>
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:minCardinality "0"^^xsd:nonNegativeInteger ;
                owl:onProperty npd:fieldDiscoveryWellBore
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:minCardinality "0"^^xsd:nonNegativeInteger ;
                owl:onProperty npd:currentActivityStatus
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:minCardinality "0"^^xsd:nonNegativeInteger ;
                owl:onProperty npd:fieldOperator
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:minCardinality "0"^^xsd:nonNegativeInteger ;
                owl:onProperty npd:fieldOwner
              ] .

<http://www.reportinghub.no/ep/schema/facility#TemporalPartOfAField>
      rdfs:subClassOf npd:FixedFacilityParent .

<http://www.reportinghub.no/ep/schema/organization#Company>
      rdfs:subClassOf npd:Individual .

<http://www.reportinghub.no/ep/schema/well#Well>
      rdfs:subClassOf npd:Individual .

<http://www.reportinghub.no/ep/schema/well#WellBore>
      rdfs:subClassOf npd:NPDIndividual .

<http://www.reportinghub.no/np/schema/1.0/npd>
      rdf:type owl:Ontology ;
      owl:imports <http://www.reportinghub.no/ep/schema/1.0/organization> , <http://www.reportinghub.no/ep/schema/1.0/facility> , <http://www.reportinghub.no/ep/schema/1.0/core> , <http://www.reportinghub.no/ep/schema/1.0/well> ;
      owl:versionInfo "0.1.0"^^xsd:string .

npd:BusinessArrangementArea
      rdf:type owl:Class ;
      rdfs:comment "A business arrangement area in this context is an area which is a result of unitisations, sliding scale rules or other business arrangements which have altered the terms of the original production licence."^^xsd:string ;
      rdfs:subClassOf npd:Owner , <http://www.reportinghub.no/ep/schema/core#PhysicalThing> , npd:NPDIndividual .

npd:DWBP_Injection
      rdf:type npd:DevelopmentWellBorePurpose ;
      rdfs:label "injection"@en ;
      npd:code "INJECTION"^^xsd:string .

npd:DWBP_Observation
      rdf:type npd:DevelopmentWellBorePurpose ;
      rdfs:label "observation"@en ;
      npd:code "OBSERVATION"^^xsd:string .

npd:DWBP_Production
      rdf:type npd:DevelopmentWellBorePurpose ;
      rdfs:label "production"@en ;
      npd:code "PRODUCTION"^^xsd:string .

npd:DevelopmentWellBorePurpose
      rdf:type owl:Class ;
      rdfs:label "Development well bore purpose"^^xsd:string ;
      rdfs:subClassOf npd:WellBorePurpose ;
      owl:oneOf (npd:DWBP_Injection npd:DWBP_Observation npd:DWBP_Production) .

npd:Discovery
      rdf:type owl:Class ;
      rdfs:comment "A discovery is a petroleum deposit or several petroleum deposits collectively, which have been discovered in the same well, in which through testing, sampling or logging there has been established a probability of the existence of mobile petroleum (includes both commercial and technical discovery)."^^xsd:string ;
      rdfs:subClassOf npd:NPDIndividual .

npd:EWBP_Appraisal
      rdf:type npd:ExplorationWellBorePurpose ;
      rdfs:label "appraisal"@en ;
      npd:code "APPRAISAL"^^xsd:string .

npd:EWBP_Wildcat
      rdf:type npd:ExplorationWellBorePurpose ;
      rdfs:label "wildcat"@en ;
      npd:code "WILDCAT"^^xsd:string .

npd:EWBP_Wildcat-Appraisal
      rdf:type npd:ExplorationWellBorePurpose ;
      rdfs:label "wildcat & appraisal"@en ;
      npd:code "WILDCAT&APPRAISAL"^^xsd:string .

npd:Enumeration
      rdf:type owl:Class ;
      rdfs:label "Enumeration"^^xsd:string ;
      rdfs:subClassOf owl:Thing ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:cardinality "1"^^xsd:nonNegativeInteger ;
                owl:onProperty npd:code
              ] .

npd:ExplorationWellBorePurpose
      rdf:type owl:Class ;
      rdfs:label "Exploration well bore purpose"^^xsd:string ;
      rdfs:subClassOf npd:WellBorePurpose ;
      owl:oneOf (npd:EWBP_Appraisal npd:EWBP_Wildcat-Appraisal npd:EWBP_Wildcat) .

npd:FixedFacilityParent
      rdf:type owl:Class ;
      rdfs:subClassOf npd:NPDIndividual .

npd:HCT_Gas
      rdf:type npd:HCType ;
      rdfs:label "gas"@en ;
      npd:code "GAS"^^xsd:string .

npd:HCT_Gas-Condensate
      rdf:type npd:HCType ;
      rdfs:label "gas/condensate"@en ;
      npd:code "GAS/CONDENSATE"^^xsd:string .

npd:HCT_Oil
      rdf:type npd:HCType ;
      rdfs:label "oil"@en ;
      npd:code "OIL"^^xsd:string .

npd:HCT_Oil-Gas
      rdf:type npd:HCType ;
      rdfs:label "oil/gas"@en ;
      npd:code "OIL/GAS"^^xsd:string .

npd:HCType
      rdf:type owl:Class ;
      rdfs:label "HCType"^^xsd:string ;
      rdfs:subClassOf npd:Enumeration ;
      owl:oneOf (npd:HCT_Gas-Condensate npd:HCT_Oil-Gas npd:HCT_Gas npd:HCT_Oil) .

npd:Individual
      rdf:type owl:Class ;
      rdfs:subClassOf owl:Thing .

npd:LS_Active
      rdf:type npd:LicenceStatus ;
      rdfs:label "active"@en ;
      npd:code "ACTIVE"^^xsd:string .

npd:LS_Inactive
      rdf:type npd:LicenceStatus ;
      rdfs:label "inactive"@en ;
      npd:code "INACTIVE"^^xsd:string .

npd:Licence
      rdf:type owl:Class ;
      rdfs:comment "Production licences are granted by the Ministry of Petroleum and Energy. Transfer of a production licence or participating interest in a production licence must be approved by the ministry."^^xsd:string ;
      rdfs:subClassOf npd:Owner , <http://www.reportinghub.no/ep/schema/core#PhysicalThing> , npd:NPDIndividual .

npd:LicenceStatus
      rdf:type owl:Class ;
      rdfs:label "Licence status"^^xsd:string ;
      rdfs:subClassOf npd:Enumeration ;
      owl:oneOf (npd:LS_Active npd:LS_Inactive) .

npd:MNA_BarentsSea
      rdf:type npd:MainNCSArea ;
      rdfs:label "Barents sea"@en ;
      npd:code "Barents sea"^^xsd:string .

npd:MNA_NorthSea
      rdf:type npd:MainNCSArea ;
      rdfs:label "North sea"@en ;
      npd:code "North sea"^^xsd:string .

npd:MNA_NorwegianSea
      rdf:type npd:MainNCSArea ;
      rdfs:label "Norwegian sea"@en ;
      npd:code "Norwegian sea"^^xsd:string .

npd:MainNCSArea
      rdf:type owl:Class ;
      rdfs:label "Main NCS Area"^^xsd:string ;
      rdfs:subClassOf npd:Enumeration ;
      owl:oneOf (npd:MNA_NorthSea npd:MNA_NorwegianSea npd:MNA_BarentsSea) .

npd:NPDIndividual
      rdf:type owl:Class ;
      rdfs:subClassOf npd:Individual .

npd:OperatingCompany
      rdf:type owl:Class ;
      rdfs:subClassOf npd:NPDIndividual , <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:Owner
      rdf:type owl:Class ;
      rdfs:comment "Supertype of BAA and License - i.e. anything that can own a Field"^^xsd:string ;
      rdfs:subClassOf npd:Individual .

npd:ParcellBAA
      rdf:type owl:Class ;
      rdfs:subClassOf npd:BusinessArrangementArea .

npd:ParentCompany
      rdf:type owl:Class ;
      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:SeismicAreaBAA
      rdf:type owl:Class ;
      rdfs:subClassOf npd:BusinessArrangementArea .

npd:Share
      rdf:type owl:Class ;
      rdfs:comment "A company's share in something - e.g. a BAA or a License"^^xsd:string ;
      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/core#PhysicalThing> .

npd:ShareOfBAA
      rdf:type owl:Class ;
      rdfs:subClassOf npd:Share .

npd:ShareOfLicence
      rdf:type owl:Class ;
      rdfs:comment "A class that relates a Company to a Licence it has been granted."^^xsd:string ;
      rdfs:subClassOf npd:Share .

npd:SlidingScaleBAA
      rdf:type owl:Class ;
      rdfs:subClassOf npd:BusinessArrangementArea .

npd:TUF
      rdf:type owl:Class ;
      rdfs:comment "TUF is an abbreviation for \"Transportation and Utilization Facilities\"."^^xsd:string ;
      rdfs:subClassOf npd:FixedFacilityParent , <http://www.reportinghub.no/ep/schema/facility#Facility> .

npd:TUFPart
      rdf:type owl:Class ;
      rdfs:comment "A part of a TUF"^^xsd:string ;
      rdfs:subClassOf npd:FixedFacilityParent .

npd:UnitizedBAA
      rdf:type owl:Class ;
      rdfs:subClassOf npd:BusinessArrangementArea .

npd:WBC_CO2
      rdf:type npd:WellBoreContent ;
      rdfs:label "CO2"@en ;
      npd:code "CO2"^^xsd:string .

npd:WBC_Cuttings
      rdf:type npd:WellBoreContent ;
      rdfs:label "cuttings"@en ;
      npd:code "CUTTINGS"^^xsd:string .

npd:WBC_Gas
      rdf:type npd:WellBoreContent ;
      rdfs:label "gas"@en ;
      npd:code "GAS"^^xsd:string .

npd:WBC_Gas-Condensate
      rdf:type npd:WellBoreContent ;
      rdfs:label "gas/condensate"@en ;
      npd:code "GAS/CONDENSATE"^^xsd:string .

npd:WBC_NotApplicable
      rdf:type npd:WellBoreContent ;
      rdfs:label "not applicable"@en ;
      npd:code "NOT APPLICABLE"^^xsd:string .

npd:WBC_NotAvailable
      rdf:type npd:WellBoreContent ;
      rdfs:label "not available"@en ;
      npd:code "NOT AVAILABLE"^^xsd:string .

npd:WBC_Oil
      rdf:type npd:WellBoreContent ;
      rdfs:label "oil"@en ;
      npd:code "OIL"^^xsd:string .

npd:WBC_Oil-Gas
      rdf:type npd:WellBoreContent ;
      rdfs:label "oil/gas"@en ;
      npd:code "OIL/GAS"^^xsd:string .

npd:WBC_Water
      rdf:type npd:WellBoreContent ;
      rdfs:label "water"@en ;
      npd:code "WATER"^^xsd:string .

npd:WBC_Water-Gas
      rdf:type npd:WellBoreContent ;
      rdfs:label "water/gas"@en ;
      npd:code "WATER/GAS"^^xsd:string .

npd:WellBoreContent
      rdf:type owl:Class ;
      rdfs:label "Well bore content"^^xsd:string ;
      rdfs:subClassOf npd:Enumeration ;
      owl:oneOf (npd:WBC_Water-Gas npd:WBC_Water npd:WBC_Gas npd:WBC_Gas-Condensate npd:WBC_NotAvailable npd:WBC_Cuttings npd:WBC_Oil npd:WBC_NotApplicable npd:WBC_Oil-Gas npd:WBC_CO2) .

npd:WellBorePurpose
      rdf:type owl:Class ;
      rdfs:label "Well bore purpose"^^xsd:string ;
      rdfs:subClassOf npd:Enumeration .

npd:baaShared
      rdf:type owl:ObjectProperty ;
      rdfs:domain npd:ShareOfBAA ;
      rdfs:range npd:BusinessArrangementArea .

npd:belongsTo
      rdf:type owl:ObjectProperty ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#FixedFacility> ;
      rdfs:range npd:FixedFacilityParent .

npd:code
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "Identifier of enumerated resources (control vocabularies). Can be used to match against string values in databases etc."^^xsd:string ;
      rdfs:label "code"^^xsd:string .

npd:companyShortName
      rdf:type owl:DatatypeProperty ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/organization#Company> ;
      rdfs:range xsd:string ;
      rdfs:subPropertyOf rdfs:label .

npd:currentActivityStatus
      rdf:type owl:DatatypeProperty ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#Field> ;
      rdfs:range xsd:string .

npd:currentOperator
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Current Operator field in fixed facility tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#FixedFacility> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:currentlyResponsibleCompany
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Currently Reponsible Company field in moveable facility tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#MoveableFacility> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:discoveryCurrentActivityStatus
      rdf:type owl:DatatypeProperty ;
      rdfs:domain npd:Discovery ;
      rdfs:range xsd:string .

npd:discoveryField
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to  Field NPDID field in NPD Discovery table (overview)"^^xsd:string ;
      rdfs:domain npd:Discovery ;
      rdfs:range <http://www.reportinghub.no/ep/schema/facility#Field> .

npd:discoveryHCType
      rdf:type owl:ObjectProperty ;
      rdfs:domain npd:Discovery ;
      rdfs:range npd:HCType .

npd:discoveryMainNcsArea
      rdf:type owl:ObjectProperty ;
      rdfs:domain npd:Discovery ;
      rdfs:range npd:MainNCSArea .

npd:discoveryOperator
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to  Operator field in NPD Discovery table (overview)"^^xsd:string ;
      rdfs:domain npd:Discovery ;
      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:discoveryOwner
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to  Owner field in NPD Discovery table (see also Owner Kind)"^^xsd:string ;
      rdfs:domain npd:Discovery ;
      rdfs:range npd:Owner .

npd:discoveryWellBore
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Discovery Wellbore NPDID in the Discovery table (overview)"^^xsd:string ;
      rdfs:domain npd:Discovery ;
      rdfs:range <http://www.reportinghub.no/ep/schema/well#WellBore> .

npd:discoveryYear
      rdf:type owl:DatatypeProperty ;
      rdfs:domain npd:Discovery ;
      rdfs:range xsd:integer .

npd:drilledInProductionLicence
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Drilled in Production Licence field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range npd:Licence .

npd:drillingFacility
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Drilled in Production License field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/facility#Facility> .

npd:drillingOperator
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Drilling Operator field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:endDate
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "The date at which an individual ceases to exist"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/core#PhysicalThing> ;
      rdfs:range xsd:date .

npd:facilityFunctions
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "corresponds to Functions field in both the fixed and moveable facility tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#Facility> ;
      rdfs:range xsd:string .

npd:facilityKind
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "corresponds to Kind field in both the fixed and moveable facility tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#Facility> ;
      rdfs:range xsd:string .

npd:fieldDiscoveryWellBore
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Discovery Wellbore NPDID in the Field table "^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#Field> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/well#WellBore> .

npd:fieldOperator
      rdf:type owl:ObjectProperty ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#Field> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:fieldOwner
      rdf:type owl:ObjectProperty ;
      rdfs:comment "The owner column in the NPD Field table may correspond to a BAA or a License, as indicated by the Owner Kind column"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#Field> ;
      rdfs:range npd:Owner .

npd:fixedFacilityPhase
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "corresponds to Phase field in fixed facility tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/facility#FixedFacility> ;
      rdfs:range xsd:string .

npd:id
      rdf:type owl:DatatypeProperty ;
      rdfs:domain npd:NPDIndividual ;
      rdfs:range xsd:string .

npd:licenceShared
      rdf:type owl:ObjectProperty ;
      rdfs:domain npd:ShareOfLicence ;
      rdfs:range npd:Licence .

npd:licenceStatus
      rdf:type owl:ObjectProperty ;
      rdfs:comment "corresponds to the Status field in the License table"^^xsd:string ;
      rdfs:domain npd:Licence ;
      rdfs:range npd:LicenceStatus .

npd:licensingActivity
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "corresponds to the licensing activity field in the License table"^^xsd:string ;
      rdfs:domain npd:Licence ;
      rdfs:range xsd:string .

npd:name
      rdf:type owl:DatatypeProperty ;
      rdfs:domain npd:Individual ;
      rdfs:range xsd:string ;
      rdfs:subPropertyOf rdfs:label .

npd:organisationNumber
      rdf:type owl:DatatypeProperty ;
      rdfs:domain npd:OperatingCompany ;
      rdfs:label "organisation number"^^xsd:string ;
      rdfs:range xsd:string .

npd:parentCompany
      rdf:type owl:ObjectProperty ;
      rdfs:domain npd:OperatingCompany ;
      rdfs:range npd:ParentCompany .

npd:partOfTUF
      rdf:type owl:ObjectProperty ;
      rdfs:domain npd:TUFPart ;
      rdfs:range npd:TUF .

npd:partOfWell
      rdf:type owl:ObjectProperty ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/well#Well> .

npd:percentageOfShare
      rdf:type owl:DatatypeProperty ;
      rdfs:domain npd:Share ;
      rdfs:range xsd:float .

npd:productionFacility
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Production Facility field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/facility#Facility> .

npd:shareHolder
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Equivalent to AwardedTo field in License table"^^xsd:string ;
      rdfs:domain npd:Share ;
      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Company> .

npd:startDate
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "The date at which an individual comes into existance"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/core#PhysicalThing> ;
      rdfs:range xsd:date .

npd:wellBoreCompletionDate
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "Corresponds to Completion Date field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range xsd:date ;
      rdfs:subPropertyOf npd:endDate .

npd:wellBoreContent
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Content field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range npd:WellBoreContent .

npd:wellBoreDrillPermit
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "Corresponds to Drill Permit field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range xsd:string .

npd:wellBorePurpose
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Purpose field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range npd:WellBorePurpose .

npd:wellBoreType
      rdf:type owl:DatatypeProperty ;
      rdfs:comment "Corresponds to Type field in WellBore tables"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range xsd:string .

npd:wellPartOfField
      rdf:type owl:ObjectProperty ;
      rdfs:comment "A field may have several Wells, however this information is not presented directly in the NPD data. Each Well usually has one (occasionally more than one) WellBore, and so in order to ascertain what field the Well is in, we have to infer it from the related WellBore table. Unfortunately, the Field column is not always populated, so sometimes the Field can only be inferred from the License, which usually corresponds to a Field."^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#Well> ;
      rdfs:range <http://www.reportinghub.no/ep/schema/facility#Field> .

npd:wellboreOwner
      rdf:type owl:ObjectProperty ;
      rdfs:comment "Corresponds to Owner field in WellBore tables - see also Owner Kind"^^xsd:string ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/well#WellBore> ;
      rdfs:range npd:Owner .