Exhibit 99.1

PTSI ANNOUNCES EXTENSION OF STOCK REPURCHASE PROGRAM

TONTITOWN,  AR.,  September  6,  2005/PRNewswire-First  Call via COMTEX/- P.A.M.
Transportation  Services,  Inc.  (Nasdaq:  PTSI)  has  completed  purchasing the
600,000  shares of its common stock covered by its stock repurchase program that
it  announced  April  11,  2005,  and has decided to extend the stock repurchase
program  to  cover  up  to an additional 900,000 shares. The extended program is
expected  to  continue  for  up  to  twelve  months  from today. Under the stock
repurchase  program, shares may be purchased from time to time in open market or
privately negotiated transactions, subject to market conditions, share price and
other considerations.

P.A.M.  Transportation  Services,  Inc.,  is a leading truckload dry van carrier
transporting  general  commodities  throughout the continental United States, as
well  as  in  the  Canadian  provinces  of  Ontario and Quebec. The Company also
provides transportation services in Mexico through its gateways in Laredo and El
Paso, Texas under agreements with Mexican carriers.



Bob Weaver of P.A.M. Transportation Services, Inc.,
+1-479-361-9111