HOUSTON, March 11 (Reuters) - ConocoPhillips ( COP ) CEO

Ryan Lance said on Tuesday that the United States and Europe

should coordinate their regulations on methane, a powerful

greenhouse gas.

"We can't have the European Union and the U.S. trying to do

something different, because they're interpreting the rules

completely different," he said at the CERAWeek energy conference

in Houston.

"Europe's trying to drive a different end game than what the

U.S. is trying to drive. So that creates a lot of problems."

Both the U.S. and Europe have developed regulations intended

to force oil and gas producers to slash emissions of methane,

the most prevalent greenhouse gas after carbon dioxide that

tends to leak into the atmosphere undetected from drill sites,

gas pipelines and other oil and gas infrastructure.

Coordinating the regulations is important in part because

the U.S. has become a large supplier of liquefied natural gas to

Europe.

The United States became the world's top oil and gas

producer after Russia's invasion of Ukraine led European

countries to cut their dependence on Russian energy and seek

other sources.

The U.S. Senate last month voted on a resolution that would

overturn a proposed fee on methane emissions developed by former

President Joe Biden's administration, and there is a chance the

Trump administration will seek to reverse other aspects of the

Biden-era US methane regulations.