The US is betting big on Venezuela’s oil potential. But significant questions remain about how much will actually be developed and invested, and what US refiners can take.

Experts say the US government's unprecedented tie-up with Venezuelan E&P Nabep deserves intense scrutiny — particularly around "at-cost" oil and Nabep's capacity to deliver.

The US is betting big on Venezuela’s oil potential. But significant questions remain about how much will actually be developed and invested, and what US refiners can take.