That’s the story in every oil producing third world country. Without western countries, and these days China, they would just have oil in the ground because they lack the technology and capital to explore for it and extract it. They want the colonizers to come just long enough to install the oil spigots then leave.
They just do not want colonizers to steal their country and interfere in their internal decisions. Unfortunately, this is the story with every First World colonizer: they do not agree with that.
I admittedly don’t know much about the industry, but didn’t most other countries not elect to expropriate the infrastructure? My understanding was that a lot of the problems the Venezuelans are having now arose from alienating themselves from the international supply chains and expertise necessary to maintain the equipment used to extract and refine petroleum.