<element name="WellInformation"> <annotation> <documentation>Structure which contains information about a well.</documentation> </annotation> <complexType> <sequence> <element ref="pidx:WellIdentifier" maxOccurs="unbounded" /> <element ref="pidx:WellName" minOccurs="0" /> <element ref="pidx:WellType" minOccurs="0" /> <element ref="pidx:WellCategory" minOccurs="0" /> </sequence> </complexType> </element>