EXHIBIT 99.1

                    LETTER TO NBT BANCORP INC. STOCKHOLDERS


                           [NBT Bancorp name and logo]


November 8, 2000

Dear Stockholder:

As you know,  NBT Bancorp has been  involved in several  merger  initiatives  in
2000. LA Bank and Pioneer  American Bank,  both  headquartered  in  Northeastern
Pennsylvania,  joined our company in February and July, respectively.  Our plans
to  bring  these  institutions  together  to form  the  largest  locally-managed
community bank in Northeastern  Pennsylvania  are well underway and will come to
fruition when they are merged to create  Pennstar Bank,  N.A. This new community
bank will boast 41  full-service  locations  and over 70 ATMs and will offer our
customers a wide array of banking and  financial  services  including  trust and
investments.

NBT made its first  non-bank  acquisition  this year in May when it  acquired M.
Griffith,   Inc.   Founded  in  1947,  M.  Griffith,   Inc.  is  a  full-service
broker-dealer and a Registered  Investment Advisor based in Utica, New York. The
firm  offers  investment,  financial  advisory  and  asset-management  services,
primarily in New York's Mohawk Valley region.

In April 2000,  we entered into an  agreement  to merge with BSB  Bancorp,  Inc.
(BSB).  Comparable  products  and  contiguous  markets  made this an  attractive
strategic  opportunity.  As BSB and we  continued  our merger  preparations  and
integration planning in the ensuing months, issues arose which resulted in BSB's
and our mutual decision to terminate our merger agreement contemporaneously with
BSB's  announcement  that it expected to incur  additional  provisions  for loan
losses. Expenses related to this and previous merger activities will continue to
be recognized during the fourth quarter of 2000 and the first quarter of 2001.

Our  successful  mergers  have  resulted in an increased  number of  outstanding
shares.  Your board and  management  are focusing on ways to  eliminate  further
dilution  due to the number of  outstanding  shares and on ways to increase  the
absolute  price of our stock.  To that end, we will not be  declaring  any stock
dividends  in 2000.  This will have a  positive  effect on  earnings  per share,
which, we believe,  in turn could  favorably  impact our stock price. We plan to
maintain our regular  quarterly  cash dividend at its current  rate,  subject to
approval  and  declaration  by the  board of  directors,  and  depending  on the
Company's  financial  condition  and  earnings,  business  conditions  and other
factors.

As many of you know,  John D. Roberts,  Executive Vice President and Chief Trust
Officer  of NBT  Bank's  Trust and  Investment  Division,  will be  retiring  at
year-end. John has been with NBT Bank for over 30 years. While his contributions
to our day to day  operations  will be missed,  we are pleased to announce that,




upon his  retirement,  he will  continue to serve the Company as a member of NBT
Bank's Board of Directors.  Vice  President and Senior Trust Officer  Timothy P.
Handy has been promoted to Senior Vice  President and will assume  leadership of
the Trust and Investment  Division,  reporting to Martin A. Dietrich,  President
and Chief Operating Officer of NBT Bank.

Joe C. Minor,  President of NBT Financial  Services,  Inc.,  will also retire at
year-end.  During his eight years of service,  Joe has been  instrumental in the
growth  of the  Company  and has  contributed  significantly  to our  growth  in
earnings.  The functions reporting to Joe will be assumed by Michael J. Chewens,
Executive Vice  President and Chief  Financial  Officer,  Martin A. Dietrich and
myself. On behalf of our entire  organization,  we wish John and Joe the best in
their retirements.

We hope you find this update on the activities of the Company to be helpful.  If
you  have  comments  or  questions,   you  are   encouraged  to  contact  us  at
607-337-6416.  As always, we appreciate your support as we move forward with our
endeavors.

Sincerely,


/s/ Daryl R. Forsythe


Daryl R. Forsythe
President and
Chief Executive Officer





Forward-Looking  Statements

This  letter  to  stockholders  contains   forward-looking   statements.   These
forward-looking  statements involve risks and uncertainties and are based on the
beliefs  and  assumptions  of  the  management  of  NBT  Bancorp  Inc.  and  its
subsidiaries  and on the  information  available to  management at the time that
these  statements  were made.  There are a number of factors,  many of which are
beyond NBT's control,  that could cause actual conditions,  events or results to
differ  significantly  from those described in the  forward-looking  statements.
Factors  that  may  cause  actual  results  to  differ   materially  from  those
contemplated  by such  forward-looking  statements  include,  among others,  the
following  possibilities:  (1) competitive  pressures among depository and other
financial  institutions  may increase  significantly;  (2) revenues may be lower
than expected;  (3) changes in the interest rate environment may reduce interest
margins; (4) general economic conditions,  either nationally or regionally,  may
be  less  favorable  than  expected,   resulting  in,  among  other  things,   a
deterioration  in  credit  quality  and/or a  reduced  demand  for  credit;  (5)
legislative or regulatory  changes,  including changes in accounting  standards,
may  adversely  affect  the  businesses  in which NBT is  engaged;  (6) costs or
difficulties  related to the integration of the businesses of NBT and its merger
partners  may  be  greater  than  expected;  (7)  other  costs  associated  with
anticipated or concluded mergers may be higher than expected;  (8) expected cost
savings  associated  with  recent  mergers  and  acquisitions  may not be  fully
realized or realized  within the expected  time frames;  (9) deposit  attrition,
customer loss, or revenue loss following  recent mergers and acquisitions may be
greater than expected; (10) competitors may have greater financial resources and
develop products that enable such competitors to compete more  successfully than
NBT;  and (11)  adverse  changes  may occur in the  securities  markets  or with
respect to inflation.  Forward-looking statements speak only as of the date they
are made. NBT Bancorp does not undertake to update forward-looking statements to
reflect subsequent circumstances or events.

                               ***END OF LETTER***