X0202 4 2006-07-31 0000722079 TERRA INDUSTRIES INC TRA 0001312921 Thompson Paul 600 FOURTH STREET P.O. BOX 6000 SIOUX CITY IA 51102-6000 0 1 0 0 V.P., Sales and Marketing Common Stock 2006-07-31 4 F 0 11358 7.18 D 135507 D Common Stock 2006-08-01 4 A 0 20100 7.04 A 155607 D This award consists of restricted shares of common stock which will vest on August 3, 2009. /s/ Mark A. Kalafut, attorney-in-fact 2006-08-02