0001140361-09-017767 8-K 2 20090804 8.01 9.01 20090804 20090804 NBT BANCORP INC 0000790359 6021 161268674 DE 1231 8-K 34 000-14703 09983933 52 S BROAD ST NORWICH NY 13815 6073372265 52 S. BROAD STREET NORWICH NY 13815 8-K 1 form8k.htm NBT BANCORP 8-K 8-4-2009 EX-5.1 2 ex5_1.htm EXHIBIT 5.1