Gas is apparently 0.06 cents (USD) a gallon. A gallon of gas provides roughly 30 kW/hr. How much is a kW/hr of electricity in Venezuela? If it is more than 0.002 (USD) a kW/hr you might be better of w/ electric generator. Anyone have any more recent numbers? I see an article from 2013 that says prices in Venezuela are roughly 0.03 cents per kW/hr. Maybe someone can check these calculations. Could have made an error.
I think there paying far more than 6cents per gallon.
Still, you forget generators are less than 100% efficient. At 30% that 30kW/hr = 9kW/hr for 6 cent. = 1.5 cents per kW/hr + cost of generator which is far from free.
For comparison I suspect you could easily get 1$ a gallon by just selling that gas. Using a mid sized fishing boat you could probably move ~1 to 10k gallons from the ships's fuel tank to a near by country without that seeming odd. Make that trip once a week and your living the good life without doing anything 'odd.' Hell I suspect you could simply meeting other fishing boats at sea fill their tanks for cash or even fish which would be next to impossible to catch.