| 6th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 5th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 5th Mar 2020 7:01 am | 
                                            RNS | 
                                            Board Changes | 
                                        
                                                                            
                                            | 5th Mar 2020 7:00 am | 
                                            RNS | 
                                            Full Year Results for year ended 31 December 2019 | 
                                        
                                                                            
                                            | 4th Mar 2020 10:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 3rd Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Mar 2020 4:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Mar 2020 11:15 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Mar 2020 11:00 am | 
                                            RNS | 
                                            Total Voting Rights and Warrant Update | 
                                        
                                                                            
                                            | 28th Feb 2020 3:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 18th Feb 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 17th Feb 2020 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 12th Feb 2020 1:14 pm | 
                                            RNS | 
                                            Result of Scheme Meetings | 
                                        
                                                                            
                                            | 10th Feb 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 7th Feb 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 7th Feb 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 4th Feb 2020 2:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 3rd Feb 2020 11:00 am | 
                                            RNS | 
                                            Total Voting Rights and Warrant Update | 
                                        
                                                                            
                                            | 3rd Feb 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 31st Jan 2020 5:30 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 31st Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 20th Jan 2020 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 20th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 20th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 17th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 16th Jan 2020 11:51 am | 
                                            RNS | 
                                            Update on Schemes of Arrangement | 
                                        
                                                                            
                                            | 16th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 14th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 10th Jan 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 10th Jan 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 10th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 10th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 9th Jan 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 7th Jan 2020 7:01 am | 
                                            RNS | 
                                            Proposed UK North Sea Acquisitions | 
                                        
                                                                            
                                            | 7th Jan 2020 7:00 am | 
                                            RNS | 
                                            Trading and Operations Update | 
                                        
                                                                            
                                            | 3rd Jan 2020 5:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Jan 2020 1:00 pm | 
                                            RNS | 
                                            Block listing Interim Review | 
                                        
                                                                            
                                            | 2nd Jan 2020 1:00 pm | 
                                            RNS | 
                                            Total Voting Rights and Warrant Update | 
                                        
                                                                            
                                            | 23rd Dec 2019 3:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 18th Dec 2019 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company |