FT Energy Source Energy headlines: Shell moves towards gas

- Shell sees key natural gas role – FT

- Exxon, Chevron’s African oil ambitions face state curbs – Bloomberg

- Sanctions hit Iran petrol imports – FT

- EU warns over climate ‘backtracking’ – Argus

- Cairn warns Delhi over $9bn sale – FT

- Wind could provide 20% of world power by 2020 – Economic Times

- Floating turbines promise to deliver reliable wind – The Guardian

- Loan terms generate US nuclear obstacles – FT

- EDF’s Maryland setback not all bad news – FT

- Canada’s oily sands yield energy and protests – NY Times

- UK government lobbied to keep port spending – The Times (£)