Occidental Petroleum’s acquisition of Anadarko Petroleum was huge news in the oil and gas industry. The $38 billion sale was a two-year ordeal that pitted Occidental against energy giant Chevron in a bidding war. While many applauded Occidental for the acquisition, others weren’t so sure. Billionaire investor Carl Icahn has filed a lawsuit seeking access to Occidental’s books and records relating to the Anadarko acquisition. Icahn alleges the acquisition “raises very real questions about competence” due to the hefty price tag.