Michigan-based, CMS Energy, is an integrated energy company which operates through two principal subsidiaries. Consumers Energy is a public utility, providing natural gas and electricity to over 6m of Michigan’s 10m residents, while CMS Enterprises engages in independent power production and natural gas transmission. Consumers' consolidated operations account for a majority of the company's total assets and income and a large portion of its operating revenue. The company recently settled Securities and Exchange Commission charges that it engaged in fraudulent energy trades with other energy companies that inflated its revenue by $5.2bn from 2000 to 2001.