Having a job on Frigg, far out to sea and midway between the UK and Norway, was a distinctive experience.

The worst diving accident in Norwegian history occurred at 04.00 on 5 November 1983 on the Byford Dolphin rig.

Every opportunity was taken on Frigg to do something special for the workforce. Norway's Constitution Day on 17 May was no exception.

A duty-free shop existed from the start on Frigg, being located on the middle deck to begin with and later in a container under the helideck which had earlier been a coffee bar.

The Frigg March was an annual tradition.

The catering service was responsible for preparing and serving food, and for cleaning cabins and public areas. This work was done by contractors on behalf of operator Elf. Christiania Dampkjøkken had the contract on QP from 1977-79, followed by Norske Chalk - which later changed its name to Chalk Services. After this company was acquired by Eurest, it was renamed again to ESS. Stavanger Catering had the contract on DP2, with Scotland?s Scott Catering employed on CDP1.

The central control room (CCR) for Frigg stood on the upper deck on QP. It was large and clearly laid out, with mimic panels which were later supplemented by computers. The operators sat along one of the long walls with their backs to the windows. There were two-three of them on each shift, and at least one had always to be present. Their job was to monitor and coordinate daily production from the field.

The safety department on Frigg comprised a safety supervisor on the central complex and on each of the drilling platforms. In addition came several safety assistants for each platform.

The whole Frigg area was managed from QP, where the central control room and offices for the field manager and the production and safety supervisors were located.

In the early years, the UK's hydrocarbon industry was dominated by foreign companies. These companies brought with them their own workforce, including many Spanish and Mexican workers, who had experience constructing the highly specialised installations the industry required.

The Elf Aquitaine Norge Offshore Union (Eanof) was founded in May 1977 to function as a house union for Frigg employees. It was modelled on the Ekofisk Committee, which had existed since 1973.

The Cooperating Committee for Operator Unions (OFS) was founded in May 1977, when the house unions on Ekofisk, Statfjord and Frigg - the Ekofisk Committee, the Statfjord Workers Union (SAF) and the Elf Aquitaine Norge Offshore Union (Eanof) ­- joined forces.

During Norway's 1986 union-management negotiations on pay and conditions, gas deliveries to the UK were shut down for the first and last time because of a labour dispute. The agreements under discussion covered drilling, catering and operations personnel. All three existing deals expired on 1 April. The employers maintained that prospects for reaching a settlement were good, but said that everyone had to be willing to negotiate.

After the most hectic development phase had been completed on Frigg and Heimdal, these fields moved into the operations or production phase. This called for a restructuring of the organisation and improvements to its efficiency.

The alarm sounded in the main control room on Frigg at 09.39 on 10 November 1992: "A fire has broken out in one of the TCP2 shafts". Personnel were immediately ordered to evacuate the platform, and 70 people crossed the bridges to QP via TP1.

The radio shack on Frigg received a message from the Rogaland Radio station on the mainland at 17.30 on 7 May 1981 that there was an injured man on a fishing boat. Arne Bråten, Odd Myrvang and Steinar Vestrheim, the crew of the Bell 212 helicopter, got ready for a mercy mission. This machine was normally used for shuttle transport between the Frigg platforms, but was also equipped for sea-air rescue.