Kinder Morgan Energy Partners (NYSE: KMP) has agreed to a $5 billion deal to buy Copano Energy (CPNO), in addition to assuming Copano's debt in a complete unit for unit swap. This is a nice bolt-on addition, giving  Kinder Morgan some very valuable additional assets, including 6,900 miles of pipeline, nine natural gas processing plants, and one fractionation facility. In this video, Motley Fool energy analyst Joel South tells investors what this means for Copano shareholders, and why these assets would fit nicely into the Kinder Morgan family.