In addition, a riser is to be retrofitted to the Gaz de France D15-FA-1 platform. The linepipe will be spooled onto the pipelay vessel at the Subsea 7’s Leith, UK, spoolbase, and the project management and engineering will be undertaken in Aberdeen. Offshore operations are to be carried out in the third quarter this year, and will include the installation, trenching, and burial of both pipeline and umbilical. Vessels likely to be used from the Subsea 7 fleet are the pipelay vessel Skandi Navica, the ROV and survey vessel Seisranger, and a diving support vessel. Wintershall AG is a wholly owned subsidiary of BASF AG, based in Ludwigshafen, Germany, and has been active for more than 70 years in the exploration and production of mineral oil and natural gas. Today, the Kassel-based company is Germany’s largest mineral oil and natural gas producer.