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Drilling reporting (DDRS)

All operators conducting drilling on the Norwegian continental shelf are required to report data from this activity to the authorities on a daily basis.


This reporting scheme has been in operation since 1984. A new XML-based standard built on WITSML was adopted for the reports in 2008.

Responsibility for maintaining this standard has been assigned to the E&P Information Management Association (EPIM).

How to transfer data
How to transfer CDRS XML data files to PSA/NPD (updated and valid from 19 February 2015)

User manual (XSD)

Form definition for XML format (XSD)

Sample file for data transfer (XML)