| 1st May 2020 4:30 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 1st May 2020 4:00 pm | 
                                            RNS | 
                                            Total Voting Rights and Warrant Update | 
                                        
                                                                            
                                            | 29th Apr 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 29th Apr 2020 1:54 pm | 
                                            RNS | 
                                            Court approves Schemes of Arrangement | 
                                        
                                                                            
                                            | 29th Apr 2020 10:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 24th Apr 2020 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 23rd Apr 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 22nd Apr 2020 2:00 pm | 
                                            RNS | 
                                            Annual Financial Report | 
                                        
                                                                            
                                            | 16th Apr 2020 4:30 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 14th Apr 2020 4:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 8th Apr 2020 3:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 7th Apr 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 7th Apr 2020 7:00 am | 
                                            RNS | 
                                            Charlie-1 well result | 
                                        
                                                                            
                                            | 6th Apr 2020 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 3rd Apr 2020 10:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Apr 2020 5:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Apr 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Apr 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Apr 2020 10:00 am | 
                                            RNS | 
                                            Total Voting Rights and Warrant Update | 
                                        
                                                                            
                                            | 20th Mar 2020 4:44 pm | 
                                            RNS | 
                                            Second Price Monitoring Extn | 
                                        
                                                                            
                                            | 20th Mar 2020 4:40 pm | 
                                            RNS | 
                                            Price Monitoring Extension | 
                                        
                                                                            
                                            | 20th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 19th Mar 2020 4:21 pm | 
                                            RNS | 
                                            Conclusion of court hearing | 
                                        
                                                                            
                                            | 18th Mar 2020 4:43 pm | 
                                            RNS | 
                                            Second Price Monitoring Extn | 
                                        
                                                                            
                                            | 18th Mar 2020 4:36 pm | 
                                            RNS | 
                                            Price Monitoring Extension | 
                                        
                                                                            
                                            | 17th Mar 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 17th Mar 2020 6:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 17th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 17th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 16th Mar 2020 5:30 pm | 
                                            RNS | 
                                            Investec | 
                                        
                                                                            
                                            | 16th Mar 2020 1:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 16th Mar 2020 1:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 13th Mar 2020 1:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 13th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 13th Mar 2020 7:00 am | 
                                            RNS | 
                                            Trading Update | 
                                        
                                                                            
                                            | 12th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 12th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 11th Mar 2020 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 9th Mar 2020 4:41 pm | 
                                            RNS | 
                                            Second Price Monitoring Extn | 
                                        
                                                                            
                                            | 9th Mar 2020 4:36 pm | 
                                            RNS | 
                                            Price Monitoring Extension |