US oil firms pumping secret chemicals into ground and not fully reporting it. Guardian
Pollution.
Dangerous chemicals dumping into water tables in USA.
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https://www.theguardian.com/us-news/2025/may/20/us-oil-firms-chemicals-colorado
US oil firms pumping secret chemicals into ground and not fully reporting it
Study shows firms in Colorado, including Chevron, have pumped 30m lbs of chemicals in 18 months without meeting all disclosure rules
Joe Fassler
Tue 20 May 2025 12.03 EDT
Colorado oil and gas companies have pumped at least 30m lbs of secret chemicals into the ground over the past 18 months without making legally required disclosures, according to a new analysis.
That’s in spite of first-in-the-nation rules requiring operators and their suppliers to list all chemicals used in drilling and extraction, while also banning any use of Pfas “forever chemicals” at oil and gas sites. Since the transparency law took effect in July 2023, operators have fracked 1,114 sites across the state, but as of 1 May chemical disclosures have not been filed for 675 of them – more than 60% of the total, the analysis says.
Chevron, the world’s third-biggest fossil-fuel company by market cap, is by far the most serious offender, operating about 375, or more than half, of the non-compliant wells
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