Without bigger government incentives, oil firms will be reluctant to take what could be an expensive plunge. Small wonder, then, that ExxonMobil boss Darren Woods has called Venezuela "uninvestable" in its current state.
Kiichiro Sato/AP/File
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"It just suddenly felt really old fashioned," says Jones. "It felt like I'd gone back 20 years."
"It's perfect," she writes in her research diary. "Just us and food. What more could I want?"