Talks between the U.S. and California on auto emissions standards have made little progress since President Donald Trump told his agencies to pursue a deal, according to a top state official, who’s holding out hope that the Environmental Protection Agency will get more involved.

Daimler Trucks, Renault Trucks, Scania AB, and other heavy vehicle manufacturers must calculate and report the carbon dioxide emissions of their new models starting Jan. 1, 2019.

Lawsuits over EPA’s April fuel economy determination are more than just a pre-emptive strike, challengers say: They’re an effort to force the agency to consider thousands of pages of its own data as it considers weakening emissions limits for passenger cars.

Brent crude will reach $90 a barrel by 2020 as new international shipping regulations take effect, overhauling the types of fuels produced by refiners, Morgan Stanley analysts said in a report.