President Donald Trump announced that large-scale oil, gas, and mineral exploration is poised to begin in Greenland. He stated on Truth Social that the island could contain far greater accessible oil reserves than previously estimated.

Trump described Greenland as strategically important for national security. He argued its location provides warning and defensive advantages against drones, missiles, and other weapons. "Any future attack on the United States will have to come across Greenland," Trump said, noting that U.S. defense systems would routinely intercept threats there.

Strategic and economic context

This announcement follows a September agreement between the U.S., Denmark, and Greenland. The deal grants a permanent U.S. security role and expands the American military presence on the island. Trump has framed Greenland as a priority to counter Chinese and Russian influence in the Arctic region.

The move occurs amid elevated fuel prices in the United States. Diesel averaged $6.2787 a gallon on Wednesday, according to AAA data. This figure is down from $6.3015 a week earlier but remains about 71% above the $3.6574 recorded a year ago.

Rare earths and military expansion

Greenland is viewed as an alternative source of critical minerals, though severe weather and logistics pose challenges. The Kvanefjeld deposit contains an estimated 1 billion tonnes of ore, according to owner Energy Transition Minerals. Greenland Mines (NASDAQ: GRML) completed the acquisition of the Sarfartoq neodymium-praseodymium rare earths project in southwest Greenland on September 1.

Reports indicate Washington is preparing to establish two additional military sites: Narsarsuaq in the south and Mestersvig on the east coast. Denmark maintains that NATO should lead Arctic security efforts.

What the numbers show

The juxtaposition of Trump’s push for domestic Arctic resource extraction against the backdrop of a separate diesel supply deal with Russia highlights a complex energy strategy. While the administration seeks to lower fuel prices through Russian imports, it simultaneously promotes high-cost Arctic exploration as a long-term security and economic asset. The 71% year-over-year increase in diesel prices underscores the immediate pressure on consumers, contrasting with the long-term timeline required for Arctic mineral projects to impact global supply chains.

Greenland is advancing two hydropower projects with a combined potential of more than 9,500 GWh of annual generation. This capacity exceeds the roughly 7 TWh expected from the nuclear plant whose full output Microsoft Corp (NASDAQ: MSFT) contracted to buy for 20 years.

The comparison underscores a broader shift in the AI-driven power buildout. While Microsoft’s deal relies on restarting an existing asset, Greenland’s resources require development, financing, construction, and an industrial customer. The government expects prequalification for the hydropower tender in October 2026, with the competitive process extending into 2028.

Capacity comparison

The scale of Greenland’s proposed energy infrastructure contrasts with established nuclear contracts in the United States. Constellation Energy Corporation (NASDAQ: CEG) states its Crane Clean Energy Center, the restarted Three Mile Island Unit 1, will add approximately 835 MW of carbon-free power. Microsoft has agreed to purchase this plant’s output under a 20-year power purchase agreement, with the plant expected to return to service in 2028.

At expected operating levels, the reactor generates roughly 7 million MWh, or 7 TWh, annually. This places Greenland’s 9.5 TWh potential about 36% higher on an annual-energy basis. However, estimates for Greenland’s hydrological studies evolve as data updates.

Infrastructure challenges

For Sarfartoq, the rare-earth project in southwest Greenland, energy is one piece of a larger infrastructure puzzle. Bo Møller Stensgaard, President of Greenland Mines Ltd (NASDAQ: GRML), stated that development will require dependable energy alongside infrastructure, patient capital, processing and separation capacity, and long-term offtake certainty.

Stensgaard identified hydropower, wind, geothermal, nuclear or small modular reactors, and hybrid renewable systems as potential sources for large industrial projects. Having the electricity resource is only one component; the challenge lies in turning potential into bankable power infrastructure.

What the numbers show

The divergence between resource potential and immediate availability defines the current market dynamic. While the 9,500 GWh figure suggests ample supply, the timeline extends into 2028, whereas the Microsoft deal is tied to an asset restarting in the same year but with a contracted buyer already in place. The critical variable for investors is not just generation capacity, but the existence of industries willing to make long-term commitments to use it in Arctic conditions.

Greenland has designed a government-take framework intended to attract experienced developers and long-term investors capable of financing and operating these projects. For Greenland Mines, successful energy development could strengthen the case for local energy-intensive mineral processing. For the broader market, it signals that the next phase of the AI power race depends on securing new sources of reliable electricity rather than solely building data centers.