The massive Suncor oil refinery near low-income neighborhoods in Denver will pay roughly $9 million due to air pollution violations as part of a…

When the noise rattled through Valerie Stozki’s kitchen one recent evening, she’d finally had enough. The buzzing coming from outside was loud — so loud…

Colorado oil and gas drillers could slow down some operations as quarantines and flight cancellations due to the coronavirus reduce global demand for oil,…

Harmful emissions from the agriculture sector are increasingly scrutinized as the climate changes. Now, energy companies want to help dairy farmers reduce…

Hundreds of Colorado oil, gas and mining operators have not been reporting the full extent of their business operations to regulators, depriving the state…

The Colorado Department of Public Health and Environment is ramping up air monitoring near a school in Greeley after researchers visiting the area…

State oil and gas regulators adopted new safety rules on Thursday requiring the locations of thousands of underground oil and gas pipelines across…

This week, the Colorado Oil and Gas Conservation Commission, or COGCC, is meeting to vote on new rules to regulate flowlines in our state. This comes…

This week, the Colorado Oil and Gas Conservation Commission, or COGCC, is meeting to vote on new rules to regulate flowlines in our state. Flowlines are…

Colorado oil and gas operators could see tighter requirements around abandoning, testing and disclosing information for thousands of underground pipelines…