Green groups are taking aim at U.S. drilling leases.

U.S. environmental groups fighting fossil-fuel development made headlines years ago with public demonstrations against big pipeline projects including the Dakota Access and the Keystone XL – only to be steamrolled by President Donald Trump’s executive orders to approve them.

Now the so-called ‘keep it in the ground’ movement has a new strategy to slow Trump’s pro-oil agenda: Burying the administration in formal written protests and lawsuits challenging nearly every oil and gas lease it plans on public land.

Over the past three years, more than 90 percent of the nearly 4,000 land parcels offered by the government to drillers in the contiguous United States have drawn formal protests, compared to less than half prior to 2015, according to data recently released by the U.S. Department of Interior.

Read the full report from Reuters.

federal oil leases

A horizontal drilling rig on a lease owned by Parsley Energy operates at sunrise in the Permian Basin near Midland, Texas U.S. REUTERS/Nick Oxford/File Photo