| 18th Nov 2019 7:00 am | 
                                            RNS | 
                                            Acquisition - Maari Project, Offshore New Zealand | 
                                        
                                                                            
                                            | 7th Nov 2019 11:00 am | 
                                            RNS | 
                                            Notice of Results | 
                                        
                                                                            
                                            | 21st Oct 2019 7:00 am | 
                                            RNS | 
                                            Southwest Vietnam Field Development Plan | 
                                        
                                                                            
                                            | 27th Sep 2019 7:00 am | 
                                            RNS | 
                                            Dividend Policy | 
                                        
                                                                            
                                            | 26th Sep 2019 7:00 am | 
                                            RNS | 
                                            Umbilical Replacement Completed at Montara | 
                                        
                                                                            
                                            | 12th Sep 2019 9:56 am | 
                                            RNS | 
                                            Director Share Dealing | 
                                        
                                                                            
                                            | 27th Aug 2019 7:00 am | 
                                            RNS | 
                                            Results for the Period Ending June 30, 2019 | 
                                        
                                                                            
                                            | 8th Aug 2019 7:00 am | 
                                            RNS | 
                                            Notice of Financial Results | 
                                        
                                                                            
                                            | 6th Aug 2019 7:00 am | 
                                            RNS | 
                                            Montara Safety Case Accepted | 
                                        
                                                                            
                                            | 27th Jun 2019 7:00 am | 
                                            RNS | 
                                            Update on Transfer of Montara Operatorship | 
                                        
                                                                            
                                            | 12th Jun 2019 7:01 am | 
                                            RNS | 
                                            Holding(s) in Company | 
                                        
                                                                            
                                            | 10th Jun 2019 7:43 am | 
                                            RNS | 
                                            Start of Montara Riserless Light Well Intervention | 
                                        
                                                                            
                                            | 29th May 2019 7:52 am | 
                                            RNS | 
                                            Results for the Period Ending March 31, 2019 | 
                                        
                                                                            
                                            | 23rd May 2019 7:00 am | 
                                            RNS | 
                                            First Production From the Stag 49H Infill Well | 
                                        
                                                                            
                                            | 17th May 2019 7:13 am | 
                                            RNS | 
                                            Notice of Financial Results | 
                                        
                                                                            
                                            | 16th May 2019 7:00 am | 
                                            RNS | 
                                            AGSM Voting Results | 
                                        
                                                                            
                                            | 13th May 2019 7:00 am | 
                                            RNS | 
                                            Further Update on Stag Infill Drilling | 
                                        
                                                                            
                                            | 29th Apr 2019 7:00 am | 
                                            RNS | 
                                            Heads of Agreement for Vietnam Gas Sales | 
                                        
                                                                            
                                            | 18th Apr 2019 7:00 am | 
                                            RNS | 
                                            Results for the Period Ending December 31, 2018 | 
                                        
                                                                            
                                            | 4th Apr 2019 8:18 am | 
                                            RNS | 
                                            Notice of Financial Results and Conference Call | 
                                        
                                                                            
                                            | 2nd Apr 2019 7:00 am | 
                                            RNS | 
                                            Update on Stag Infill Drilling | 
                                        
                                                                            
                                            | 1st Apr 2019 8:41 am | 
                                            RNS | 
                                            Issuance of Stock Options | 
                                        
                                                                            
                                            | 25th Mar 2019 8:37 am | 
                                            RNS | 
                                            Update on Stag Infill Drilling | 
                                        
                                                                            
                                            | 6th Mar 2019 7:00 am | 
                                            RNS | 
                                            2019 Guidance Outlook | 
                                        
                                                                            
                                            | 11th Feb 2019 7:00 am | 
                                            RNS | 
                                            Rig Contract | 
                                        
                                                                            
                                            | 28th Jan 2019 7:02 am | 
                                            RNS | 
                                            Production Update and Hedging Guidance | 
                                        
                                                                            
                                            | 24th Jan 2019 7:00 am | 
                                            RNS | 
                                            Tyrus Share Purchase | 
                                        
                                                                            
                                            | 11th Jan 2019 7:00 am | 
                                            RNS | 
                                            Montara Production Restart | 
                                        
                                                                            
                                            | 4th Jan 2019 7:00 am | 
                                            RNS | 
                                            Readiness of Montara Asset for Production Restart | 
                                        
                                                                            
                                            | 11th Dec 2018 7:00 am | 
                                            RNS | 
                                            Progress on Montara Shutdown Work | 
                                        
                                                                            
                                            | 4th Dec 2018 2:40 pm | 
                                            RNS | 
                                            Director Share Dealing | 
                                        
                                                                            
                                            | 28th Nov 2018 7:00 am | 
                                            RNS | 
                                            Results for the Period Ending September 30, 2018 | 
                                        
                                                                            
                                            | 15th Nov 2018 8:02 am | 
                                            RNS | 
                                            Maintenance & Inspection Shutdown at Montara | 
                                        
                                                                            
                                            | 8th Nov 2018 7:00 am | 
                                            RNS | 
                                            Notice of Financial Results | 
                                        
                                                                            
                                            | 28th Sep 2018 7:00 am | 
                                            RNS | 
                                            Completion of Montara Acquisition | 
                                        
                                                                            
                                            | 21st Sep 2018 7:00 am | 
                                            RNS | 
                                            Satisfaction of Conditions to Complete Acquisition | 
                                        
                                                                            
                                            | 10th Sep 2018 8:33 am | 
                                            RNS | 
                                            Director Share Dealing | 
                                        
                                                                            
                                            | 7th Sep 2018 7:00 am | 
                                            RNS | 
                                            Director Share Dealing | 
                                        
                                                                            
                                            | 28th Aug 2018 7:41 am | 
                                            RNS | 
                                            Results for the Period Ending June 30, 2018 | 
                                        
                                                                            
                                            | 21st Aug 2018 7:03 am | 
                                            RNS | 
                                            Notice of Financial Results |