Shell has until 29 September to comply with this notice. The supermajor confirmed to OE of receiving the notices on Lomond platform, which is currently shut down for planned maintenance, and said that the company is working to address the requirements. "Shell UK can confirm that we have been issued with two HSE Improvement Notices on 31 May in relation to maintenance / testing procedures and the fire and gas detection system within a small number of process modules at our Lomond installation in the Central North Sea," a Shell spokesperson said. "We are currently working to address the requirements of these Improvement Notices." Lomond was a BG Group asset, which Shell acquired following the Shell/BG combination in 2016. Shell is the 100% owner and operator of the facility, however, the supermajor entered an agreement in January to divest Lomond in January, in addition to a package of its UK North Sea assets to Chrysaor for up to US$3.8 billion.