The supreme court justice Samuel Alito gained up to $2.9m from his fossil fuel interests between 2005 and 2024, a new review of financial disclosures shows.

The analysis from the non-profit advocacy group and judicial watchdog Court Accountability, shared exclusively with the Guardian, found that even at the lowest range of estimates, Alito gained almost $400,000 from his oil and gas interests since being tapped for the high court by George W Bush in 2005.

The findings come as the supreme court prepares to take up a case in which the oil companies Suncor Energy and Exxon asked the justices to find that federal law prevents subnational governments from filing lawsuits against fossil fuel producers for the climate-warming effects of their products.