“Like the oil and gas itself, data from oil and gas operations associated with the Norwegian Continental Shelf (NCS) is also flowing. … EPIM, the Exploration & Production Information Management Association, is implementing its vision of a shared suite of knowledge based-applications for the Norwegian Oil & Gas industry built using semantic web standards and the domain concepts from ISO 15926. In this brief article, we give an overview of the three applications EPIM currently has in deployment. In building and deploying these applications, some key features and insights applicable to other applications that involve data integration across diverse systems emerge …”