Brent Spar

With the completion of a pipeline connection to the oil terminal at Sullom Voe in Shetland, the storage facility had continued in use, but by 1991, was considered to be of no further value.

In the face of public and political opposition in northern Europe (including a widespread boycott of Shell service stations, some physical attacks and an arson attack on a service station in Germany), Shell abandoned its plans to dispose of Brent Spar at sea  — whilst continuing to stand by its claim that this was the safest option, both from an environmental and an industrial health and safety perspective.

Greenpeace's own reputation also suffered during the campaign, when it had to acknowledge that its assessment of the oil remaining in Brent Spar's storage tanks had been grossly overestimated.

Following Shell's decision to pursue only on-shore disposal options, as favoured by Greenpeace and its supporters, Brent Spar was given temporary moorings in a Norwegian fjord.

In January 1998, Shell announced its decision to re-use much of the main structure in the construction of new harbour facilities near Stavanger, Norway.

[2] The first option involved towing the Brent Spar to a shallow water harbour to decontaminate it and reuse the materials used in its construction.

This would release contaminants in a single burst, and have an effect for 3,300 ft (1,000 m) "down current" of the final resting place, although this would last for a shorter time than in the first instance.

Shell proposed that deep sea disposal was the best option for Brent Spar, arguing that their decision had been made on sound scientific principles and data.

Having decided on a preferred method of disposal, Shell contracted Fisheries Research Services (FRS) to investigate possible sites for sinking the facility.

FRS identified three sites as 12 by 12 mi (20 by 20 km) squares, which were considered suitable; the Maury Channel, the North Feni Ridge and the Rockall Trough.

The Rockall Trough area was found to be a gently sloping basin between the Anton Dohrn Seamount and the Wyville-Thomsom Ridge.

[4] Having received these conclusions, Shell opted for the North Feni Ridge site, and applied to the British government for a licence to dispose of the rig at sea.

[citation needed] At this time, activists collected a sample of the contents of the Spar and sent it for testing, to determine the nature of the pollutants which the platform contained.

On 23 May, after several attempts, Shell obtained legal permission to evict the Greenpeace protesters from the Brent Spar, and they were eventually taken by helicopter to Aberdeen, Scotland, where they held a press conference.

German Chancellor Helmut Kohl protested to the British Prime Minister, John Major at a G7 conference in Halifax, Nova Scotia.

[citation needed] On 20 June, Shell had decided that their position was no longer tenable, and withdrew their plan to sink the Brent Spar.

[9] While the Brent Spar was being dismantled, quantities of the endangered cold-water coral Lophelia pertusa were found growing on the legs of the platform.

[10] At the time, this was considered unusual, although recent studies have shown this to be a common occurrence, with 13 of 14 North Sea oil rigs examined having L. pertusa colonies.

[12] According to a poll of 1000 adults carried out by Opinion Leader Research on 26 January 1996 on behalf of Greenpeace, a majority of the British public were aware of the Brent Spar (57%).

Although Shell had carried out an environmental impact assessment in full accordance with existing legislation, they had severely underestimated strength of public opinion.

Shell claimed that spending such an amount to protect a small area of remote, low resource value, deep sea was pointless and this money could be much more constructively spent.

The Brent Spar oil storage buoy
Sites considered for sinking of Brent Spar. 1. Maury Channel. 2. North Feni Ridge. 3. Rockall Trough .