The United States and Saudi Arabia signed a wide-ranging economic partnership agreement and several energy deals during President Donald Trump’s visit to Riyadh on Tuesday.
President Trump and Saudi Crown Prince Mohammed bin Salman formalized the agreement at the Saudi–U.S. Investment Forum 2025. The forum brought together top officials and business leaders from both countries.
Among the major announcements, Saudi Aramco CEO Amin Nasser revealed a $3.4 billion deal to expand the Motiva refinery in Port Arthur, Texas. The expansion aims to integrate chemicals production into the facility, which is the second-largest U.S. refinery by operable capacity.
The Motiva refinery currently produces conventional gasoline, jet fuel, ultra-low sulfur diesel, and export-grade diesel, among other fuels.
In addition to the Motiva expansion, Aramco signed agreements with American energy firms NextDecade and Sempra. Nasser confirmed a memorandum of understanding with Sempra to supply around 6.2 million tons of liquefied natural gas (LNG) per year.
This builds on a 2023 non-binding agreement between Aramco and Sempra. That deal included plans for a 20-year LNG offtake agreement and a potential 25% stake in Phase 2 of Sempra’s Port Arthur LNG project.
“The U.S. is really a good place to put our investment,” Nasser said at the forum, emphasizing Aramco’s commitment to growing its presence in the American energy market.
The forum also drew high-profile U.S. business figures, including BlackRock CEO Larry Fink and Tesla and SpaceX CEO Elon Musk, signaling strong bilateral interest in energy and investment cooperation.
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