Oil production drop is only one of the many causes of the crisis. The government has worked against producers by stealing their companies when they start to work, then leaving them to stgnate. Together with the massive regulations, the promotion of crime and the absurd jailings and kidnappings of anyone in the opposition, businesses cannot thrive and the economy can't recover.
There's sadly a thousand and one things that are wrong with what the government has been imposing on us. :(