Download centre PDF files (PDF:) Sustainability Report 2017 71 pages 5.9 MB (PDF:) Introduction 14 pages 274 kB (PDF:) Energy transition 11 pages 1.5 MB (PDF:) Managing operations 8 pages 880 kB (PDF:) Our contribution to society 8 pages 1.7 MB (PDF:) Working together 8 pages 542 kB (PDF:) Our performance and data 18 pages 836 kB (PDF:) GRI index 20 pages 345 kB You can find previous Annual Reports and other publications in our Annual Reports download centre & archive. Excel files (XLS:) Sustainability Report 2017 (2 tables, indexed) 60 kB (XLS:) Environmental data 27 kB (XLS:) Social data 28 kB