Source
https://www.offshore-technology.com/projects/luva-gas-field-north-sea/,
https://www.equinor.com/en/news/2018-12-17-aasta-hansteen.html, https://www.nsenergybusiness.com/projects/aasta-hansteen-offshore-field/, https://www.equinor.com/en/what-we-do/norwegian-continental-shelf-platforms/aasta-hansteen.html