Kinder Morgan Rises After Biggest LBO-Backed U.S. IPO

Kinder Morgan Inc., the energy-pipeline company whose owners include the Carlyle Group and Goldman Sachs Group Inc., gained 3.5 percent in its first day of trading after expanding its initial public offering.

The company, which is trading again after it was taken private in 2007, raised $2.9 billion or 23 percent more than it sought in the biggest U.S. IPO backed by leveraged-buyout firms. Kinder Morgan’s shares closed at $31.05 in trading on the New York Stock Exchange, after advancing as much as 7.1 percent.