CNR penalized again for exceeding venting limits at North Sea Ninian fields

The UK's North Sea Transition Authority has fined CNR £300,000 after the operator exceeded its vent consent at the Ninian area fields in late 2024, marking the company's second venting-related penalty in the area within two years.
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Oct. 12, 2026
2 min read
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Why this news matters:

  • The penalty highlights increasing regulatory scrutiny of offshore emissions and venting practices in the UK North Sea. 

  • The case demonstrates the operational and financial risks associated with production disruptions and equipment failures. 

  • North Sea operators face potentially larger penalties going forward, with the NSTA raising the starting point for future flaring and venting breaches.

 

Courtesy CNR International (U.K.) Ltd.
Ninian Central Platform in East Shetland Basin UKCS

The Ninian Central platform is part of CNR International's Ninian area asset portfolio, which was the subject of a recent North Sea Transition Authority enforcement action related to excess venting.

Ninian area venting breach

  • Operator: CNR International

  • Location: Ninian area, UK North Sea

  • Fields: Ninian, Lyell, Columba E, Columba B/D, Orlando, Strathspey

  • Excess venting: 20.9 metric tons above consent level

  • Fine: £300,000 ($396,000)

  • Previous fine: £250,000 in 2023

  • Regulator: North Sea Transition Authority (NSTA)

Britain’s North Sea Transition Authority (NSTA) has fined CNR for breaching a vent consent on the Ninian area fields, 100 miles northeast of the Shetland Isles in the North Sea.

The fields include Ninian, Lyell, Columba E, Columba B/D, Orlando and Strathspey.

CNR had reported in late November 2024 having exceeded its vent consent of 272.2 metric tons, granted for the period June 15 to Dec. 31, 2024, by 20.9 mt.

The £300,000 ($396,000) fine followed a fine of £250,000 ($330,000) imposed on the company in 2023 for exceeding its vent consent in the same area.

CNR explained that a series of operational events had caused the increased venting volumes. These included weather-related flare issues in October 2024 and a six-day production outage due to third-party pipeline equipment failure the following month.

It then lodged an application requesting an increase in its vent consent for the remainder of that year, but before the application was submitted that consent too was exceeded on Nov. 26.

After CNR contacted NSTA the same day to confirm the excess, the company has since set up more regular and analytical reviews of venting events, including daily reviews of venting volumes.

In December 2024, the NSTA informed North Sea operators that the starting figure when considering breaches of flaring consents would be £500,000 ($660,000) after Jan. 1, 2025.

However, as CNR’s breach pre-dated this starting point, the higher fine has not applied to this case.

About the Author

Jeremy Beckman
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Jeremy Beckman

Staff Writer / Editor, Europe

Jeremy Beckman has been Editor Europe, Offshore since 1992. Prior to joining Offshore he was a freelance journalist for eight years, working for a variety of electronics, computing and scientific journals in the UK. He regularly writes news columns on trends and events both in the NW Europe offshore region and globally. He also writes features on developments and technology in exploration and production.

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