Guidance

Oil and gas: EEMS database

Access the Environmental and Emissions Monitoring System database to get data on oil rigs and other offshore installations around the UK.

• From: Department for Energy Security and Net Zero and Offshore Petroleum Regulator for Environment and Decommissioning
• Published: 22 January 2013
• Last updated: 20 August 2026 — See all updates

Overview

The Environmental and Emissions Monitoring System (EEMS) is the environmental database of the UK oil and gas industry. Its primary purpose is to record measured and calculated data relating to emissions and discharges from offshore installations.

The system is maintained by OPRED (DESNZ) and is accessible to offshore oil and gas operators and Offshore Energies UK (OEUK).

Access to EEMS is restricted to authorised users through controlled usernames and passwords.

Access EEMS via the UK Energy Portal

Contacts

OPRED

For assistance in relation to :

• OPRED (DESNZ) reporting requirements
• reference data changes, including sample points and turbines
• queries in relation to returns
• queries in relation to asset transfers

contact the OPRED Business Support Team

Email: OPRED@energysecurity.gov.uk

UK Energy Portal service desk

For assistance in relation to:

• 3rd party software issues

Contact the UK Energy Portal service desk:

Email: ukop@nstauthority.co.uk
Tel: 0300 067 1682

Guidance and returns

The following guidance and return documents will be reviewed and replaced or updated as necessary.

General

• EEMS User Request to Amend Submitted Data Form (MS Word Document, 23 KB)

Return categories

• OPPC General Guidance (PDF, 37 KB, 10 pages)
• Atmospherics Emissions Guidance (PDF, 1.98 MB, 122 pages)
• Drill Fluids Return Submission (MS Excel Spreadsheet, 75.5 KB)
• Radioactivity Guidance (MS Word Document, 1.18 MB)
• Waste Guidance (PDF, 90 KB, 10 pages)
• OPPC Monthly Oil in Water Guidance (PDF, 56.2 KB, 2 pages)
• OPPC Return Submission (MS Excel Spreadsheet, 30 KB)
• OPPC Bi-annual (Aromatic) Analysis Guidance (PDF, 22.9 KB, 4 pages)
• New radioactivity schema – October 2010 (PDF, 48.9 KB, 2 pages)
• Radioactivity Return Submission (MS Excel Spreadsheet, 180 KB)
• Chemical Guidance (PDF, 83.9 KB, 10 pages)

Published 22 January 2013

Last updated 20 August 2026 — Show all updates

1. 20 August 2026

   EEMS Atmospheric Guidance Phase 1 v1.0 - 2026 published. Guidance replaces the 'Atmospheric Guidance', 'Atmospheric Emissions Calculations' and 'Atmospheric Simulations Calculations'. OGUK amended to OEUK, Links updated, old documents archived, User Group information removed.

2. 16 February 2024

   Unlock request refreshed with updated contact details

3. 6 December 2023

   OPRED@energysecurity.gov.uk updated

4. 15 April 2019

   Changes made to the entire body of the page

5. 24 May 2018

   Change to OPRED (BEIS) contact email addresses

6. 13 November 2017

   Updated 'EEMS return – request to amend locked data' form uploaded to the page

7. 18 March 2015

   Oil and gas: EEMS Change Requests - (updated)

8. 24 February 2015

   Oil and gas: EEMS Change Requests - (updated)

9. 3 December 2014

   Oil and gas: EEMS Change Requests - (updated)

10. 10 November 2014

    Oil and gas: EEMS Change Requests - (updated)

11. 3 November 2014

    Oil and gas: EEMS change requests - (updated)

12. 30 June 2014

    Oil and gas: EEMS user group meeting minutes - (added)

13. 9 June 2014

    Oil and gas: EEMS Change Requests – (updated)

14. 28 May 2014

    Oil and gas: EEMS Change Requests – (updated)

15. 21 May 2014

    Oil and gas: EEMS user group, presentation and minutes - (added)

16. 17 April 2014

    Oil and gas: EEMS Change Requests – (updated)

17. 4 April 2014

    Oil and gas: EEMS Change Requests – March 2014 - (added)

18. 4 April 2014

    Oil and gas: EEMS New schema – (added)

19. 13 December 2013

    OIl and gas; EEMS user group minutes - (added)

20. 22 January 2013

    First published.