| 31st May 2017 2:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 30th May 2017 4:19 pm | 
                                            RNS | 
                                            Refinancing Update | 
                                        
                                                                            
                                            | 25th May 2017 2:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 22nd May 2017 2:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 22nd May 2017 7:00 am | 
                                            RNS | 
                                            Zama-1 Spudded | 
                                        
                                                                            
                                            | 18th May 2017 12:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 17th May 2017 4:30 pm | 
                                            RNS | 
                                            Result of AGM | 
                                        
                                                                            
                                            | 15th May 2017 7:00 am | 
                                            RNS | 
                                            Trading, Operations and Refinancing Update | 
                                        
                                                                            
                                            | 9th May 2017 5:30 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 4th May 2017 5:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 27th Apr 2017 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 25th Apr 2017 7:00 am | 
                                            RNS | 
                                            Refinancing update | 
                                        
                                                                            
                                            | 18th Apr 2017 9:30 am | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 13th Apr 2017 3:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 12th Apr 2017 12:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 10th Apr 2017 4:55 pm | 
                                            RNS | 
                                            Annual Financial Report | 
                                        
                                                                            
                                            | 5th Apr 2017 7:00 am | 
                                            RNS | 
                                            Sale of Pakistan Business | 
                                        
                                                                            
                                            | 4th Apr 2017 6:20 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 3rd Apr 2017 5:00 pm | 
                                            RNS | 
                                            Director Declaration | 
                                        
                                                                            
                                            | 31st Mar 2017 4:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 27th Mar 2017 5:59 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 24th Mar 2017 2:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 23rd Mar 2017 7:00 am | 
                                            RNS | 
                                            Revised conversion price for convertible bonds | 
                                        
                                                                            
                                            | 15th Mar 2017 7:00 am | 
                                            RNS | 
                                            Refinancing update | 
                                        
                                                                            
                                            | 14th Mar 2017 2:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 9th Mar 2017 7:01 am | 
                                            RNS | 
                                            Final Results | 
                                        
                                                                            
                                            | 9th Mar 2017 7:00 am | 
                                            RNS | 
                                            Refinancing update | 
                                        
                                                                            
                                            | 3rd Mar 2017 3:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 3rd Mar 2017 9:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Mar 2017 5:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Mar 2017 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Mar 2017 3:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Mar 2017 4:30 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Mar 2017 7:00 am | 
                                            RNS | 
                                            Refinancing update | 
                                        
                                                                            
                                            | 24th Feb 2017 2:28 pm | 
                                            RNS | 
                                            Share price weakness | 
                                        
                                                                            
                                            | 3rd Feb 2017 7:00 am | 
                                            RNS | 
                                            Announcement of the proposed refinancing | 
                                        
                                                                            
                                            | 2nd Feb 2017 5:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 1st Feb 2017 7:00 am | 
                                            RNS | 
                                            Deferral of Financial Covenant Test | 
                                        
                                                                            
                                            | 12th Jan 2017 12:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 12th Jan 2017 7:00 am | 
                                            RNS | 
                                            Trading and Operations Update |