The Denver Post: State regulators took the first enforcement actions against some of Colorado’s largest oil and gas operators as part of an ongoing investigation into reports of environmental consultants’ falsification of data on the cleanup of 404 sites in Weld County.

The Colorado Energy and Carbon Management Commission, or ECMC, which regulates the oil and gas industry, said Wednesday that it issued what’s called notices of alleged violations to seven companies. The companies have 28 days to file a response and hearings will be held.

The ECMC announced in November 2024 that it was looking into reports that two Denver-area environmental consultants hired by Colorado oil and gas operators had submitted false data on tests of soil, groundwater and contamination at hundreds of locations in Weld County. The results are intended to show whether work to clean up spills and waste meet state standards.

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