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The Colorado Oil and Gas Conservation Commission is considering two new rules governing how oil and gas operators work in populated areas. The draft rules…

The Colorado Oil and Gas Conservation Commission, the state's regulator, is proposing a new set of rules that would give local governments more say over…

The U.S. Department of Interior decided Tuesday that the greater sage grouse does not need protection under the Endangered Species Act. The bird spans 11…

Sand is a key ingredient in hydraulic fracturing, but breathing in too much of it can lead to silicosis, an incurable but entirely preventable disease…

Opponents of hydraulic fracturing often comment on its high water use. Yet a comprehensive total of just how much water used during the process has been…

Driven by new regulations and fracking, more coal power plants are retiring for cheaper, cleaner-burning natural gas. But scientists have yet to work out the fossil fuel's imperfect climate footprint.

Two studies commissioned by the city of Fort Collins to study the impacts of hydraulic fracturing failed to offer clear answers as to the controversial…

The report says there are few incidents of tainted water given the number of wells. Energy companies agree. Environmentalists accuse the industry of undue influence over the study.

The regulations, which go into effect in 90 days, establish safety measures for wells and for drilling companies to publicly disclose chemicals used in the process.

The executive director of the Colorado Oil and Gas Association, Tisha Schuller, recently announced that she's leaving the state's largest trade…