The counterparty credit rating on UnitedHealth Group Inc. (UHG) is largely based on its strong and well diversified business position, very strong operating performance, appropriate financial leverage and liquidity, and good capital position at the regulatory level. The counterparty credit and insurer financial strength ratings on its various operating subsidiaries (see related ratings) are based on the same major rating factors, and their strategic importance to and explicit support from UHG. Strong business position. UHG is one of the largest health care organizations in the U.S., providing health care services and benefits to about 15 million lives as of year-end 2000 (excluding both individuals served through UnitedHealthcare platforms in Puerto Rico and the U.S. Pacific coast region, from which the