The NDR work group focuses on promoting collaboration amongst regulatory agencies on oil and natural gas data management standards, with a particular focus on national data repositories.


Regulatory agencies all over the world have the shared problem of receiving, storing and releasing huge quantities of data – initially seismic and log data. This problem increases every year as the technology of the oil industry suppliers delivers more and more data.

To overcome these problems, National Data Repositories (NDRs) began to emerge. As NDRs emerged about 20 years ago, some of the early adopters in the UK and Norway started an embryonic movement to get Regulators to cooperate in developing these repositories. This was very informal until 2008 when Energistics created this work group.


The primary objective of this work group is to develop and coordinate global meetings for work group members and interested parties to work through common issues and develop requirements for data repository standards by consensus.

Regulatory agencies and other interested organizations are encouraged to get involved. Inquiries may be directed to Energistics.

NDR Meetings

The next NDR meeting will take place in Utrecht October 14-17 2019, more on this event here.

You can find the information on past NDR meetings from 2006 (NDR 7) through 2017 (NDR 2017) here  (NDR8 is missing)

Production Reporting

Data Collection by National Regulators

This document describes a data structure for the standardized reporting of oil production and associated data to national regulators. It also provides a convenient structure for the storage and transmission of such data. This document will be used by the PRODML SIG to develop a fit-for-purpose data-object for use by regulatory agencies.


The NDR Work Group has issued periodic newsletters, you can find them here.

Country Index

This index page has not been updated recently, some materials from NDR2017 may be more recent.

Other links

NDR Wikipedia site

(The website contains links to a prior version of the website, please use the event page to access all the information and documents from the meeting)