Adrian is living in the past28 Jan 2022 15:20
Perhaps you should have read the Interim Report last year which is after your RNS. Particularly the bit that said "continuous and optimised oil production from the Portland". No mention of stop/start.
"A well intervention on the Horse Hill-1 well ("HH-1") was safely completed, optimising oil
flow by isolating the Kimmeridge perforations, reperforating the full Portland oil
producing section, inserting a new simplified production tubing string and setting the
downhole pump at a deeper level to increase pumping efficiency. These improvements
set HH-1 up for long term continuous and optimised oil production from the Portland."
The RNS on the 20 September 2021 said "Following the shutdown period necessary to undertake the works, oil production has now been re-established." No mention of any stop/start.
Perhaps if you kept up to date with what was going on and realise the tanker routine is based on continuous pumping. No big gaps between loads.