IOG plc provides a drilling update on the Southwark field, the third of its Phase 1 fields after Elgood and Blythe. Over recent days the Noble Hans Deul jack-up drilling rig mobilised to Southwark following completion of the Blythe production well. Early on Sunday 10 October, during routine jacking operations after arriving at the field, an issue was identified on one of the legs of the rig and the installation process was halted. No drilling or associated works were ongoing at the time. The rig went to full muster while the issue was assessed and all 66 people on board are safe and well. There was no damage to the rig hull or to the Southwark platform. The rig is stable and connected to tow boats while the crew assesses its condition. The priority of IOG and its drilling contractors remains the safety of all relevant personnel, ensuring the rig's ongoing integrity and the safe and efficient continuation of the Phase 1 drilling campaign at the earliest feasible time. Noble Corporation, the rig owner, has initiated an investigation into the cause of the issue. It is initially expected that the rig will be transported to port to undertake any necessary assessments before drilling can be safely resumed. The Company will release further relevant information as it becomes available. As per the recent Blythe drilling update, the Company continues to expect First Gas from both the Blythe and Elgood fields in Fourth Quarter 2021 once the final subsea and onshore installations are complete.