
Of the 161 chemical disclosures filed with the ECMC as of July 20, 2025, only 41 had been filed before the May 20 report was released, and 120 have been filed since then.
Kerr McGee and Verdad Resources were some of the only operators that submitted chemical disclosures early on, whereas companies like Noble Energy and PDC Energy only began submitting disclosures after a May 20, 2025 report published by PSR and FracTracker Alliance.