keywords: exelon acquisition exres dynegy shc
text: Dynegy announces US\$135 million acquisition of Exelon Corp. &lt;b&gt;...&lt;/b&gt; Dynegy Inc. said Tuesday it would pay \$135 million US to buy ExRes SHC Inc., a subsidiary of Chicago-based Exelon Corp. It was the Houston-based power marketer #39;s first acquisition in more than two years.