“The big picture: Methane, a potent greenhouse gas, is the primary component of natural gas and is sometimes purposefully or inadvertently leaked in the production and transport of the fuel, as well as when drilling for oil. The EPA has been slow in its approach toward rolling back Obama-era methane rules, in part due to industry divisions.”

https://www.axios.com/exxon-epa-regulate-methane-emissions-oil-gas–0befdde6-e0fe-49db-a200-38299853b43d.html