Large bank holding companies and stand-alone banks say bank-owned life insurance assets increased to $109 billion at the end of the first half of 2007, up 11% from the total recorded a year earlier.

Bank holding companies with at least $500 million in assets boosted BOLI holdings by 12%, to $106 billion, according to researchers at Michael White Associates, Radnor, Pa.

The percentage of the large and midsize bank holding companies with BOLI assets increased to 80%, from about 76%.

BOLI programs were most common at bank holding companies with $1 billion to $10 billion in assets: About 84% of the bank holding companies in that size category reported having BOLI assets during the first half of the year.