Bill Barrett Corporation was an energy company based in Denver, Colorado. Its core business is natural gas and oil exploration and development in the Rocky Mountains region of the United States.
Bill Barrett Corporation was an energy company based in Denver, Colorado. Its core business is natural gas and oil exploration and development in the Rocky Mountains region of the United States. (en)
Bill Barrett Corporation was an energy company based in Denver, Colorado. Its core business is natural gas and oil exploration and development in the Rocky Mountains region of the United States. (en)