Attorneys general in at least a dozen states have formed secretive alliances with “energy companies and other corporate interests” to fight Obama administration regulations, a new investigation by the New York Times has found.

The Times notes that though individual attorneys general have before pushed for changes following lobbyists’ interventions, “never before have attorneys general joined on this scale with corporate interests to challenge Washington and file lawsuits in federal court.”

Attorney General of Oklahoma Scott Pruitt, for example, has sent energy industry-drafted letters, with nearly no changes, to the EPA, and the Times reports that industry has similarly sent other attorneys general drafted legislation for them to push through.

Such AG-corporate alliances were fostered at meetings like the “Summit on Federalism and the Future of Fossil Fuels” last year, which brought 9 attorneys general and members of the oil and gas industries together.

From that meeting emerged a “strike force” to determine which attorney general’s office could best be suited to fighting particular regulation, such as regulation to strengthen coal ash regulation.