The United States on Monday kicks off a set of G20 meetings touting “energy abundance,” even as President Donald Trump’s war against Iran continues to disrupt global fuel markets, Reuters reports.

The discussions are slated to run through Wednesday in Houston, in the oil-rich US state of Texas.

The meetings gather delegations from the world’s largest economies —including China, India, Japan and Germany — with major oil producers set to attend, such as Canada and Saudi Arabia.

Russian diplomats indicated Saturday that Moscow would also send some officials.

The unexpected presence of Russian Finance Minister Anton Siluanov caused a stir at a previous G20 meeting two weeks ago.