| 5th Jan 2017 12:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 3rd Jan 2017 12:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 3rd Jan 2017 12:00 pm | 
                                            RNS | 
                                            Block listing Interim Review | 
                                        
                                                                            
                                            | 29th Dec 2016 7:00 am | 
                                            RNS | 
                                            Deferral of Financial Covenant Test | 
                                        
                                                                            
                                            | 15th Dec 2016 5:10 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 15th Dec 2016 12:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Dec 2016 3:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Dec 2016 9:00 am | 
                                            RNS | 
                                            Total Voting Rights | 
                                        
                                                                            
                                            | 30th Nov 2016 7:00 am | 
                                            RNS | 
                                            Deferral of Financial Covenant Test | 
                                        
                                                                            
                                            | 18th Nov 2016 10:00 am | 
                                            RNS | 
                                            Notification of Change of Auditor | 
                                        
                                                                            
                                            | 17th Nov 2016 7:00 am | 
                                            RNS | 
                                            Trading and Operations Update | 
                                        
                                                                            
                                            | 14th Nov 2016 12:32 pm | 
                                            RNS | 
                                            TR-1: Notification of Interest | 
                                        
                                                                            
                                            | 8th Nov 2016 1:01 pm | 
                                            RNS | 
                                            Market speculation | 
                                        
                                                                            
                                            | 8th Nov 2016 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Nov 2016 12:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 1st Nov 2016 7:00 am | 
                                            RNS | 
                                            Deferral of Financial Covenant Test | 
                                        
                                                                            
                                            | 24th Oct 2016 4:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 21st Oct 2016 2:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 4th Oct 2016 3:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 3rd Oct 2016 9:00 am | 
                                            RNS | 
                                            Total Voting Rights | 
                                        
                                                                            
                                            | 3rd Oct 2016 7:00 am | 
                                            RNS | 
                                            Deferral of financial covenant test | 
                                        
                                                                            
                                            | 2nd Sep 2016 3:00 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Sep 2016 3:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Sep 2016 7:00 am | 
                                            RNS | 
                                            Lender Discussions Update | 
                                        
                                                                            
                                            | 19th Aug 2016 12:34 pm | 
                                            RNS | 
                                            Correction: Half-year Report | 
                                        
                                                                            
                                            | 18th Aug 2016 7:00 am | 
                                            RNS | 
                                            Half-year Report | 
                                        
                                                                            
                                            | 17th Aug 2016 10:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 5th Aug 2016 5:00 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 5th Aug 2016 7:00 am | 
                                            RNS | 
                                            Bagpuss well result | 
                                        
                                                                            
                                            | 3rd Aug 2016 5:19 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 2nd Aug 2016 4:30 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 2nd Aug 2016 11:00 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 1st Aug 2016 7:00 am | 
                                            RNS | 
                                            Lender Discussions Update | 
                                        
                                                                            
                                            | 22nd Jul 2016 3:30 pm | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 12th Jul 2016 7:00 am | 
                                            RNS | 
                                            Trading and Operations Update | 
                                        
                                                                            
                                            | 5th Jul 2016 5:15 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 1st Jul 2016 7:00 am | 
                                            RNS | 
                                            Lender Discussions Update | 
                                        
                                                                            
                                            | 2nd Jun 2016 5:30 pm | 
                                            RNS | 
                                            Director/PDMR Shareholding | 
                                        
                                                                            
                                            | 26th May 2016 4:00 pm | 
                                            RNS | 
                                            Report on Payments to Governments | 
                                        
                                                                            
                                            | 11th May 2016 3:30 pm | 
                                            RNS | 
                                            Result of AGM |