India, Sept. 2 -- Trump's Venezuela oil deal could need about $100 billion in investment. The money would be needed over the coming years to build the infrastructure required to bring Venezuela's oil out of the ground and increase production.

The biggest question is still: Who will provide the $100 billion? While several parts of the agreement between the US government and Venezuela have been explained, there is still no clear answer on where the huge amount of capital will come from. That funding question has become one of the biggest unanswered issues surrounding Trump's Venezuela oil plans.

The US government says it will not put taxpayer dollars into the project. A US official told reporters on Tuesday that Washington's goal is to us...