GlobalResearch.ca has an article by Michel Chossudovsky that says the Libyan Investment Authority has had around $150 Billion of oversears investments frozen.
Libya`s frozen overseas financial assets are estimated to be of the order of $150 billion, with NATO countries holding more than $100 billion.
Prior to the war, Libya had no debts. In fact quite the opposite. It was a creditor nation investing in neighboring African countries.
This image was taken from that article:
Estimated Libyan finds, invested overseas by the Libyam Investment Authority; $150 BILLION
[...]
Total Libyan funds held by the Invading NATO alliance $99.06 BILLION. Almost 2/3's of Libya's foreign investments.
Just happen to be held in countries that form the NATO invading forces.