FT Energy Source Energy headlines: Halliburton and BP under renewed fire

- Halliburton and BP knew risk before spill – FT

- Federal investigators pose uncomfortable questions – FT

- Inquiry puts Halliburton in a familiar seat – NY Times

- This could be most damaging scandal yet for Halliburton – FT Lex

- Total profits surge 32 per cent – Bloomberg

- Exxon and Shell profits surge – FT

- Shell warns of two-year hit from Gulf ban – The Times (£)

- Nigeria resumes push for higher Opec output – The Barrel

- Anger over German nuclear plant vote – FT

- Enel cuts IPO price – Argus

- First Wind pulls IPO – Reuters

- Revealed: How Desire’s advisers have cashed in – The Telegraph

- Poland picks Kulczyk to buy Enea – FT

- Arnie flexes muscle to defend climate law – The Guardian