WASHINGTON – The numbers are mind boggling. When it comes to the total dollar amount of business loan portfolios at some of the larger banks, credit unions are nowhere near being a threat. American Banker recently ranked the l50 banks with the largest business loan portfolios. Citigroup Inc. topped the list at $227 billion as of September 2005. Bank of America Corp. came in second at $199 billion and JP Morgan Chase & Co. took the third spot at $183 billion. To put those figures in perspective, the total outstanding balance on business loans for the credit union industry in 2005 was $15.9 billion, according to Callahan & Associates, Inc. To even crack the top 10 listing for bank business loans, a credit union would need to have at least $41 billion. Evangelical Christian Credit Union, with $873 million in member business loans as of Dec. 31, 2005, would not even make the list of the top 150 banks as ranked by American Banker. BancFirst Corp. in Oklahoma City, ranked 150th on the list, amassed $1.2 billion in business loans, according to the publication.