NGAS Convertible Notes

NGAS Convertible Notes. Means the 6% Amortizing Convertible Notes due May 1, 2012 to be issued by Holdings in the aggregate original principal amount of $28,700,000, together with certain additional consideration, in exchange for 6% Convertible Notes due December 15, 2010 issued by Holdings pursuant to the NGAS Securities Purchase Agreement, as amended and in effect on the Fourth Amendment Effective Date.