The FT's senior energy correspondent Anjli Raval analyses how major oil companies have responded to the crisis, and outlines how they will have to adapt to survive a more volatile future. See if you get the FT for free as a student (http://ft.com/schoolsarefree) or start a £1 trial: https://subs.ft.com/spa3_trial?segmentId=3d4ba81b-96bb-cef0-9ece-29efd6ef2132.

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