Information on The List was gathered from Colorado Oil and Gas Conservation Commission production reports. Companies are ranked by natural gas production in Colorado regardless of where their company headquarters are located. Natural gas includes coalbed methane and CO2. In case of ties, companies are listed alphabetically.
Merger will see two big Marcellus producers combine
The merger will bring the combined companies to the No. 2 spot on the list for largest oil and gas producers in the state, behind
