President Trump’s highly touted oil deal in Venezuela will require what all sides agree is about $100 billion in capital investment over the coming years to build the infrastructure needed to get the energy out of the ground.

Yet while many aspects of the deal have been clarified, it’s not clear where all that money will come from to fulfill Trump’s ambitious promises in what he’s calling the biggest oil deal in world history.

The funding issue has emerged as perhaps the central unanswered question about the US government’s plans for this major slice of Venezuela’s oil fields, which geologists estimate holds approximately 65 billion barrels of oil — a massive quantity, but only about one-fifth of Venezuela’s entire reserves, estimated at 303 billion barrels.

The company charged with raising the money and doing the drilling is North American Blue Energy Partners (NABEP), a private Venezuelan entity now partnering with the US.

“Right now our interest is ensuring that the backing of the US allows this company to attract the capital investment necessary to ramp up production rapidly,” a US official told reporters on Tuesday. The official underlined that the United States government is making “zero investment of dollars” in the new venture.

WASHINGTON, DC - AUGUST 31: U.S. President Donald Trump attends a healthcare affordability event in the Oval Office at the White House on August 31, 2026 in Washington, DC. President Trump announced that nearly a dozen pharmaceutical manufacturers have agreed to lower the price of their medications to match their prices outside of the United States. (Photo by Kevin Dietsch/Getty Images) President Donald Trump is seen in the Oval Office at the White House on Aug. 31. (Kevin Dietsch/Getty Images) · Kevin Dietsch via Getty Images

NABEP, led by controversial businessman Alejandro Betancourt, is set to receive leases for the oil fields — which have more proven reserves than in the entire United States — in return for giving the US government a 35% equity stake in the new venture as well as the right to buy 20% of the company’s eventual crude oil output “at production cost.”

The US government also reserves the right to purchase the remaining 80% of the company’s new output at market prices if desired.

Betancourt’s company echoed the $100 billion estimate in a press release this week, saying it “is seeking to rapidly expand its operations in Lake Maracaibo and the Orinoco Belt with the near-term goal of increasing production to more than 1 million barrels of oil per day.”

NABEP has significantly ramped up pumping in recent years, from about 18,000 to 200,000 barrels of daily production, with ambitious plans to deploy more than 50 drilling rigs to scale up further, according to internal company documents obtained by the Wall Street Journal.

A NABEP representative familiar with its plans told Yahoo Finance that the company was confident it could continue ramping up production as the financing is worked out. Yet it was unclear whether the company could keep pace with Trump’s outsized promises.

In his announcement last Friday, Trump promised that the deal “will substantially lower Gas Prices for all Americans,” adding on Monday that the production increases will happen more quickly than experts predict.

“It’s going to go fast,” Trump said, suggesting it will be felt within the next two years.

MARACAIBO, VENEZUELA - JULY 27: A Venezuelan flag waves in front of oil tanker on lake in Maracaibo, Venezuela on July 27, 2026. The capital of the oil state and surrounding areas offer a stark contrast between Venezuela's oil wealth and the daily reality of communities living near the country's energy infrastructure. While oil continues to generate revenue and crude is shipped through terminals serving international markets, many local residents say they have seen little benefit from the sector. (Photo by Jose Isaac Bula/Anadolu via Getty Images) A Venezuelan flag waves in front of oil tanker on lake in Maracaibo, Venezuela on July 27. (Jose Isaac Bula/Anadolu via Getty Images) · Anadolu via Getty Images A push for ‘a stable supply of low-cost oil’ for the US

The overall goal for the US, a fact sheet from the White House explained, is to ensure “a stable supply of low-cost oil that can facilitate refilling the Strategic Petroleum Reserve” at “no cost to the American taxpayer.”

While refilling the US energy backstop won’t be quite that simple, the Trump administration has expressed confidence in Betancourt’s ability to deliver, calling him “a proven operator” and noting that NABEP already sits as the second-largest private oil producer in the country and aims to surpass Chevron (CVX), the leader.

The deal has also moved ahead rapidly, even as questions have emerged about Betancourt’s past. He rose to prominence in Venezuela as an ally of Hugo Chavez before a falling out with the regime. More recently, he faced criminal investigations around allegations of money laundering in Spain and Switzerland.

FREEPORT, TEXAS - OCTOBER 19: In an aerial view, the Strategic Petroleum Reserve storage at the Bryan Mound site is seen on October 19, 2022 in Freeport, Texas. US President Joe Biden is planning to release fifteen million barrels of oil from the nation's emergency reserves in an effort to continue curving gas prices around the country. The deal completes Biden's March initiative to release 180 million barrels from the Strategic Petroleum Reserve.  (Photo by Brandon Bell/Getty Images) A Strategic Petroleum Reserve storage site is seen in 2022 near Freeport, Texas.. (Brandon Bell/Getty Images) · Brandon Bell via Getty Images

The White House also sees this deal as a national security win, as much of this land had previously been leased to Russian and Chinese energy companies.

The plans follow separate plans in the works by Chevron to develop different land in Venezuela.

The Houston-based company already produces about 300,000 barrels of oil a day in Venezuela and is expected to announce plans later this week for new investment as part of its own push for a larger footprint in the country.

Ben Werschkul is a Washington correspondent for Yahoo Finance.

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