Venezuela's oil industry was once the envy of the region, but after decades of mismanagement and corruption the sector is facing ruin. The FT's Andean correspondent Gideon Long asks what went wrong. 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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