Kerr-McGee

A $25 billion lawsuit against a subsidiary of Anadarko, the giant oil and gas company, is about environmental pollution and bankruptcy. The tiny town of Avoca, Pa., one of the plaintiffs.

Kerr-McGee, a subsidiary of the giant oil and gas company Anadarko, is being sued for $25 billion in New York City. The company's long history and pedigree resemble a script from the old and recently resurrected TV series "Dallas."