Apparently in response to a May 20, 2025 report published by PSR and FracTracker Alliance, Colorado Oil & Gas operators submitted chemical disclosures for 83 oil & gas locations in June 2025.
Of the 141 chemical disclosures filed with the ECMC as of July 6, 2025, only 41 had been filed before the May 20 report was released, and 100 have been filed since then.