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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K
                Annual Report Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                   For the fiscal year ended December 31, 1998
                           Commission File No. 0-24946

                           KNIGHT TRANSPORTATION, INC.
             (Exact name of registrant as specified in its charter)

               Arizona                                           86-0649974
   (State or other jurisdiction of                            (i.R.S. Employer
    incorporation or organization)                           identification no.)

5601 West Buckeye Road, Phoenix, Arizona                           85043
(Address of principal executive offices)                         (Zip Code)

                                 (602) 269-2000
              (Registrant's Telephone Number, Including Area Code)

        Securities Registered Pursuant to Section 12(b) of the Act: None

           Securities Registered Pursuant to Section 12(g) of the Act:

     TITLE OF EACH CLASS                    Name of Exchange on Which Registered
     -------------------                    ------------------------------------
Common Stock, $0.01 par value                            NASDAQ-NMS

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes [X] No [ ]

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

The  aggregate  market  value of  voting  stock  held by  non-affiliates  of the
registrant as of March 4, 1999, was $141,599,291  (based upon $21.0625 per share
being  the  closing  sale  price  on  that  date  as  reported  by the  National
Association of Securities  Dealers Automated  Quotation  System-National  Market
System  ("NASDAQ-NMS")).  In making this  calculation,  the issuer has  assumed,
without admitting for any purpose,  that all executive officers and directors of
the company, and no other persons, are affiliates.

The number of shares outstanding of the registrant's common stock as of March 4,
1999 was 14,992,061.

The  Information  Statement for the Annual Meeting of Shareholders to be held on
May 12, 1999 is incorporated into this Form 10-K Part III by reference.

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                                TABLE OF CONTENTS

                           KNIGHT TRANSPORTATION, INC.
                            FORM 10-K FOR THE FISCAL
                          YEAR ENDED DECEMBER 31, 1998

                                                                           Page
                                                                           ----
PART I.
    Item 1.   Business.......................................................1
    Item 2.   Properties.....................................................6
    Item 3.   Legal Proceedings..............................................7
    Item 4.   Submission of Matters to a Vote of Security Holders............7

PART II.
    Item 5.   Market for Company's Common Equity and Related
               Shareholder Matters...........................................8
    Item 6.   Selected Financial Data........................................9
    Item 7.   Management's Discussion and Analysis of Financial
               Condition and Results of Operations..........................10
    Item 7A   Quantitative and Qualitative Disclosures About
               Market Risk..................................................17
    Item 8.   Financial Statements and Supplementary Data...................18
    Item 9.   Changes in and Disagreements on Accounting and
               Financial Disclosure.........................................18

PART III.
    Item 10.  Directors and Executive Officers of the Company...............18
    Item 11.  Executive Compensation........................................18
    Item 12.  Security Ownership of Certain Beneficial Owners
               and Management...............................................18
    Item 13.  Certain Relationships and Related Transactions................18

PART IV.
    Item 14.  Exhibits, Financial Statement Schedules,
               and Reports on Form 8-K......................................19

SIGNATURES..................................................................22

REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS ...................................24

CONSOLIDATED FINANCIAL STATEMENTS AND ACCOMPANYING NOTES....................25

INDEX TO EXHIBITS...........................................................38


                                     PART I

ITEM 1.   BUSINESS

         EXCEPT FOR THE HISTORICAL  INFORMATION CONTAINED HEREIN, THE DISCUSSION
IN THIS ANNUAL REPORT  CONTAINS  FORWARD-LOOKING  STATEMENTS THAT INVOLVE RISKS,
ASSUMPTIONS  AND  UNCERTAINTIES  WHICH ARE  DIFFICULT TO PREDICT.  WORDS SUCH AS
"BELIEVE," "MAY," "COULD," "EXPECTS" AND "LIKELY" VARIATIONS OF THESE WORDS, AND
SIMILAR EXPRESSIONS,  ARE INTENDED TO IDENTIFY SUCH FORWARD-LOOKING  STATEMENTS.
THE  COMPANY'S  ACTUAL  RESULTS  COULD DIFFER  MATERIALLY  FROM THOSE  DISCUSSED
HEREIN.  FACTORS THAT COULD CAUSE OR CONTRIBUTE TO SUCH DIFFERENCES INCLUDE, BUT
ARE NOT LIMITED TO, THOSE DISCUSSED IN THE SECTIONS  ENTITLED  "FACTORS THAT MAY
AFFECT FUTURE  RESULTS" AND  "MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL
CONDITION AND RESULTS OF  OPERATIONS,"  AS WELL AS THOSE  DISCUSSED IN THIS PART
AND ELSEWHERE IN THIS ANNUAL REPORT.

GENERAL

         Knight   Transportation,   Inc.   ("Knight"  or  the  "Company")  is  a
short-to-medium  haul,  dry van  truckload  carrier  headquartered  in  Phoenix,
Arizona. The Company transports general  commodities,  including consumer goods,
packaged  foodstuffs,  paper  products,  beverage  containers  and  imported and
exported  commodities.  The Company  provides  truckload  carrier service to the
Western United States out of its Phoenix, Arizona headquarters, in the Texas and
Louisiana region through its facility in Katy,  Texas, and in the Midwest and on
the East Coast through its facility in Indianapolis, Indiana.

         The Company's  stock has been publicly  traded since October 1994. From
1992 to 1998,  Knight's  revenue has grown to $125.0 million from $19.6 million,
and net income has  increased to $13.3  million from $1.9  million.  This growth
resulted from expansion of the Company's customer base and increased volume from
existing  customers,  and was  facilitated  by the  continued  expansion  of the
Company's fleet,  including an increase in the Company's independent  contractor
fleet.

OPERATIONS

         Knight's  operating  strategy  focuses  on four key  elements:  growth,
regional operations, customer service, and operating efficiencies.

         o GROWTH.  Knight's objective is to achieve  significant growth through
the  controlled  growth of high quality  service to existing  customers  and the
development  of new  customers in its  expanded  market  areas.  The Company has
developed an  independent  contractor  program to increase its tractor fleet and
provide additional service to customers,  while minimizing capital investment by
the Company.  The Company  believes that there are significant  opportunities to
continue to increase its business in the short-to-medium haul market by pursuing
existing strategies and expanding its dedicated services.

         o REGIONAL  OPERATIONS.  The Company's  headquarters  and facilities in
Phoenix,  Arizona allow it to serve the Western region of the United States. The
Company has also established  operations near Houston,  Texas to serve customers
in the Louisiana and Texas region.  In March 1999, the Company leased a facility
in  Corsicana,  Texas,  in order to  expand  its  operations  in the  Texas  and
Louisiana region.  The Company's  operations in Corsicana are supervised through
its  regional  headquarters  near  Houston.  The  Company  has also  established
operations  in  Indianapolis,  Indiana,  from  which it  provides  regional  and
dedicated service in the Mid-West and on the East Coast. Knight expects that its
three regional  operating  bases will provide a platform for future growth,  and
intends to expand its regional operations from those bases.

                                       -1-

         o CUSTOMER SERVICE.  Knight's  operating  strategy is to provide a high
level of service to customers,  establishing the Company as a preferred or "core
carrier"  for  customers  who have time  sensitive,  high  volume or high weight
requirements.  The Company's  services include multiple pick-ups and deliveries,
dedicated equipment and personnel,  on-time pickups and deliveries within narrow
time frames,  specialized  driver training,  and other services tailored to meet
its customers'  needs. The Company has adopted an equipment  configuration  that
meets a wide  variety  of  customer  needs  and  facilitates  customer  shipping
flexibility.  The Company  uses light  weight  tractors  and high cube  trailers
capable of handling both high volume and high weight shipments.

         o OPERATING  EFFICIENCIES.  The Company  employs a number of strategies
that it  believes  are  instrumental  to its  efforts  to achieve  and  maintain
operating  efficiencies.  Knight seeks to maintain a simplified  operation  that
focuses on operating dry vans in particular  geographical and shipping  markets.
This approach allows the Company to concentrate its marketing efforts to achieve
higher  penetration of its targeted  service areas.  The Company seeks operating
economies by maintaining a generally  compatible  fleet of tractors and trailers
that  facilitates  Knight's ability to serve a broad range of customer needs and
thereby   maximizes   equipment   utilization  and   efficiencies  in  equipment
maintenance and positioning.

MARKETING AND CUSTOMERS

         The  Company's  sales  and  marketing  function  is led  by its  senior
management,  who are  assisted  by  other  sales  professionals.  The  Company's
marketing  team  emphasizes  the Company's  high level of service and ability to
accommodate a variety of customer  needs.  The Company's  marketing  efforts are
designed to take  advantage of the trend among  shippers  toward  private  fleet
conversions,  outsourcing  transportation  requirements,  and  the  use of  core
carriers to meet shippers' needs.

         Knight has a diversified customer base. For the year ended December 31,
1998, the Company's 25 largest customers represented 51.4% of operating revenue;
its ten largest customers  represented 34.5% of operating revenue;  and its five
largest customers  represented  22.0% of the Company's  operating  revenue.  The
Company  believes  that a  substantial  majority  of the  Company's  25  largest
customers  regard Knight as a preferred or "core carrier." Most of the Company's
truckload  carriage  contracts are cancelable on 30 days notice. The loss of one
or more large customers could have a materially  adverse effect on the Company's
operating results.

         Knight seeks to provide consistent, timely, flexible and cost efficient
service to shippers. The Company's objective is to develop and service specified
traffic lanes for customers who ship on a consistent basis,  thereby providing a
sustained, predictable traffic flow and ensuring high equipment utilization. The
short-to-medium  haul segment of the truckload  carrier  market  demands  timely
pickup and delivery and, in some cases,  response on short  notice.  The Company
seeks to obtain a  competitive  advantage by providing  high quality  service to
customers at  competitive  prices.  To be responsive to customers'  and drivers'
needs, the Company often assigns  particular drivers and equipment to prescribed
routes, providing better service to customers,  while obtaining higher equipment
utilization.

         Knight's standard dedicated fleet services also involve management of a
significant part of a customer's  transportation  operations.  Under a dedicated
carriage  service  agreement,  the  Company  provides  drivers,   equipment  and
maintenance,  and, in some instances,  transportation  management  services that
supplement  the customer's  in-house  transportation  department.  The Company's
primary  arrangements  for  dedicated  services in the Houston area obligate the
Company to provide a portion of its customer's  transportation needs from one of
the  customer's  distribution  centers.  The Company  furnishes  these  services
through Company provided revenue equipment and drivers.

                                       -2-

         Each of the Company's two regional  operations centers is linked to the
Company's   Phoenix   headquarters  by  an  IBM  AS/400  computer  system.   The
capabilities  of this  system  enhance the  Company's  operating  efficiency  by
providing cost effective access to detailed information concerning equipment and
shipment status and specific customer requirements,  and also permit the Company
to respond promptly and accurately to customer requests. The system also assists
the Company in matching  available  equipment  and loads.  The Company  provides
electronic data interchange ("EDI") services to shippers requiring such service.

         The Company has made an  investment  in a  communications  company that
provides two-way digital wireless communication services which enables customers
such as the  Company to  communicate  with  manned and  unmanned  transportation
assets via the  Internet  and  through  ground  based  wide-area  networks.  The
Company's  investment  is  intended to assure  access to low cost  communication
services  for the future  which are  capable of meeting the needs of the Company
and its customers.

DRIVERS, OTHER EMPLOYEES, AND INDEPENDENT CONTRACTORS

         As of December 31, 1998,  Knight employed 1,145 persons,  including 933
drivers  and 31  maintenance  personnel.  None  of the  Company's  employees  is
represented by a labor union.

         The  recruitment,  training  and  retention  of  qualified  drivers  is
essential  to support  the  Company's  continued  growth and to meet the service
requirements of the Company's customers. Drivers are selected in accordance with
specific  objective  Company  quality  guidelines  relating  primarily to safety
history,  driving  experience,   road  test  evaluations,   and  other  personal
evaluations,  including  physical  examinations  and mandatory  drug and alcohol
testing.

         The Company  seeks to maintain a qualified  driver  force by  providing
attractive  and  comfortable   equipment,   direct   communication  with  senior
management,  competitive  wages and benefits,  and other incentives  designed to
encourage driver retention and long-term  employment.  Many drivers are assigned
to dedicated or semi-dedicated  fleet operations,  enhancing job predictability.
Drivers are recognized for providing superior service and developing good safety
records.

         Knight's  drivers  are  compensated  on the basis of miles  driven  and
length of haul.  Drivers also are compensated for additional  flexible  services
provided to the Company's  customers.  Drivers  participate  in Knight's  401(k)
program and in Company-sponsored health, life and dental plans. Knight's drivers
and other employees who meet  eligibility  criteria also  participate in a stock
option plan and a cash employee incentive program.

         The Company also maintains an independent  contractor program.  Because
independent  contractors provide their own tractors,  the independent contractor
program provides the Company an alternate method of obtaining additional revenue
equipment.  The Company intends to continue its use of independent  contractors.
As of December  31,  1998,  the Company had 231  tractors  owned and operated by
independent contractors. Each independent contractor enters into a contract with
the  Company  pursuant to which it is required to furnish a tractor and a driver
exclusively  to  transport,  load  and  unload  goods  carried  by the  Company.
Independent contractors are paid a fixed level of compensation based on total of
trip-loaded and empty miles and are obligated to maintain their own tractors and
pay for their own fuel.  The  Company  provides  trailers  for each  independent
contractor.  The Company also provides  maintenance services for its independent
contractors for a charge.  The Company also offers  financing at market interest
rates to independent contractors to assist them in acquiring revenue equipment.

                                       -3-

Company  loans are  secured by a lien on the  independent  contractor's  revenue
equipment.  As of  December  31,  1998,  the Company  had  outstanding  loans of
approximately $3.4 million to independent contractors.

REVENUE EQUIPMENT

         The  Company  operates a fleet of  53-foot  long,  high cube  trailers,
including 50  refrigerated  trailers and 24 flatbed  trailers in its fleet as of
March  4,  1999.  The  efficiency   and   flexibility   provided  by  its  fleet
configurations  permit the  Company to handle  both high  volume and high weight
shipments.  Knight's fleet configuration also allows the Company to move freight
on a  "drop-and-hook"  basis,  increasing asset utilization and providing better
service  to  customers.  Knight  maintains  a high  trailer  to  tractor  ratio,
targeting  a ratio  of 2.7 to 1.  Management  believes  maintaining  this  ratio
promotes  efficiency and allows it to serve a large variety of customers'  needs
without significantly changing or modifying equipment.

         Growth of the  Company's  tractor and trailer  fleets is  determined by
market  conditions,  and the Company's  experience  and  expectations  regarding
equipment utilization.  In acquiring revenue equipment,  the Company considers a
number  of  factors,  including  economy,  price,  technology,  warranty  terms,
manufacturer support,  driver comfort and resale value. As of December 31, 1998,
the Company  operated 702 company  tractors with an average age of 1.5 years and
2,809  trailers  with an average age of 2.2 years.  The  Company  also had under
contract,  as of December  31,  1998,  231  tractors,  operated  by  independent
contractors.

         The Company seeks to minimize the  operating  costs of its tractors and
trailers  by   maintaining  a  relatively   new  fleet   featuring  cost  saving
technologies.  The Company's  current  policy is to replace most of its tractors
within 42 months after the date of purchase  and to replace its trailers  over a
five to seven year period.  Actual  replacement  depends  upon the  condition of
particular equipment,  its resale value and other factors. The Company employs a
continuous  preventive  maintenance  program designed to minimize equipment down
time,  facilitate  customer  service,  and enhance trade value when equipment is
replaced.  The Company believes that its equipment acquisition program allows it
to meet the needs of a wide range of customers in the dry van  truckload  market
while,  at the same time,  controlling  costs  relating to  maintenance,  driver
training  and  operations.  As of December  31,  1998,  the Company had purchase
commitments  for  additional  tractors and trailers  with an estimated  purchase
price of approximately $41 million for delivery throughout 1999.

SAFETY AND RISK MANAGEMENT

         The Company is committed to ensuring the safety of its operations.  The
Company  regularly  communicates with drivers to promote safety and instill safe
work  habits  through  Company  media and safety  review  sessions.  The Company
conducts  quarterly  safety  training  meetings for its drivers and  independent
contractors.  In addition, the Company has an innovative recognition program for
driver  safety   performance,   and  emphasizes  safety  through  its  equipment
specifications  and  maintenance  programs.  The  Company's  Safety  Director is
involved in the review of all accidents.

         The Company requires  prospective drivers to meet higher  qualification
standards than those required by the United States  Department of Transportation
("DOT").  The DOT requires the Company's  drivers to obtain national  commercial
drivers' licenses  pursuant to regulations  promulgated by the DOT. The DOT also
requires  that the  Company  implement  a drug and  alcohol  testing  program in
accordance with DOT regulations.  The Company's program includes pre-employment,
random, and post-accident drug testing.

         The  Company's  Chief  Financial  Officer and Vice  President  of Human
Resources and Administration are responsible for securing appropriate  insurance
coverages at cost effective  rates.  The primary claims arising in the Company's

                                       -4-

business  consist of cargo loss and damage and auto liability  (personal  injury
and  property  damage).  The Company is  self-insured  for  personal  injury and
property damage up to a maximum limit of $100,000 per occurrence, for collision,
comprehensive,  and  cargo  liability  up to a  combined  limit of  $12,500  per
occurrence,  and for workers'  compensation up to $250,000 per  occurrence.  The
Company maintains insurance to cover liabilities in excess of these amounts. The
Company's  insurance  policies  provide  for  general  liability  coverage up to
$1,000,000 per occurrence and $2,000,000 in the aggregate;  automobile liability
coverage up to $1,000,000 per  occurrence;  cargo insurance up to $2,500,000 per
occurrence;  and additional  umbrella liability coverage up to $25,000,000.  The
Company also maintains primary and excess coverage for employee medical expenses
and hospitalization,  and damage to physical  properties.  The Company carefully
monitors claims and  participates  actively in claims estimates and adjustments.
The  estimated  costs  of  the  Company's  self-insured  claims,  which  include
estimates for incurred but unreported  claims, are accrued as liabilities on the
Company's  balance  sheet.  Management  believes  that the  Company's  insurance
coverages are adequate to protect the Company from any significant losses.

COMPETITION

         The entire trucking industry is highly competitive and fragmented.  The
Company competes  primarily with other regional  short-to-medium  haul truckload
carriers,  logistics providers and national carriers.  Railroads and air freight
also provide  competition,  but to a lesser degree.  Competition for the freight
transported by the Company is based on freight rates,  service,  and efficiency.
The Company also competes with other motor  carriers for the services of drivers
and independent contractors.  A number of the Company's competitors have greater
financial  resources,  own more equipment,  and carry a larger volume of freight
than the Company. The Company believes that the principal competitive factors in
its  business  are  service,   pricing   (rates),   and  the   availability  and
configuration of equipment that meets a variety of customers' needs.  Knight, in
addressing its markets,  believes that its principal competitive strength is its
ability to provide timely,  flexible and cost-efficient  service to shippers. In
general,  increased  competition  has  created  downward  pressure  on rates and
increased the need to provide higher levels of service to customers.

REGULATION

         Generally,   the  trucking   industry  is  subject  to  regulatory  and
legislative  changes that can have a materially  adverse  effect on  operations.
Historically,  the  Interstate  Commerce  Commission  ("ICC") and various  state
agencies regulated  truckload  carriers'  operating rights,  accounting systems,
rates  and  charges,  safety,  mergers  and  acquisitions,   periodic  financial
reporting  and other  matters.  In 1995,  federal  legislation  was passed  that
preempted state regulation of prices,  rates, and services of motor carriers and
eliminated the ICC.  Several ICC functions were transferred to the Department of
Transportation  ("DOT"),  but a lack of regulations  implementing such transfers
currently prevents the Company from assessing the full impact of this action.

         Interstate motor carrier operations are subject to safety  requirements
prescribed  by the DOT.  Matters such as weight and  dimensions of equipment are
also subject to federal and state  regulation.  In 1988, the DOT began requiring
national commercial drivers' licenses for interstate truck drivers.

         The   Company's   motor   carrier   operations   are  also  subject  to
environmental laws and regulations,  including laws and regulations dealing with
underground fuel storage tanks, the  transportation  of hazardous  materials and
other environmental  matters.  The Company has initiated programs to comply with
all  applicable  environmental  regulations.  As part  of its  safety  and  risk
management program, the Company periodically performs an internal  environmental

                                       -5-

review  so that the  Company  can  achieve  environmental  compliance  and avoid
environmental  risk.  The  Company's  Phoenix  and  Indianapolis   facility  was
designed,  after  consultation  with  environmental  advisors,  to  contain  and
properly  dispose  of  hazardous  substances  and  petroleum  products  used  in
connection with the Company's business.  The Company transports a minimum amount
of  environmentally  hazardous  substances  and,  to date,  has  experienced  no
significant claims for hazardous substance shipments. If the Company should fail
to  comply  with  applicable  regulations,  the  Company  could  be  subject  to
substantial fines or penalties and to civil and criminal liability.

         The Company's operations involve certain inherent  environmental risks.
The Company's  Phoenix  facility is located on land  identified  as  potentially
having groundwater contamination beneath it allegedly resulting from the release
of hazardous  substances by persons who have  operated in the general  vicinity.
The area has been  classified as a state  superfund  site.  The Company has been
located at its present  Phoenix  facility since 1990 and,  during such time, has
not been  identified  as a  potentially  responsible  party  with  regard to the
groundwater  contamination.  The  Company  has  installed  a fuel  island at its
Phoenix,  Arizona  headquarters and maintains  above-ground bulk fuel storage to
provide fuel for this facility. The Company's Phoenix bulk fuel storage facility
has been  designed to minimize  environmental  risk.  There are two  underground
storage  tanks  located on the Company's  Indianapolis  property.  The tanks are
subject to regulation  under both federal and state law and are currently  being
leased to and  operated by an  independent,  third party fuel  distributor.  The
Company  assumed the  lessor's  interest in the lease,  in  connection  with its
purchase  of  the  property.  The  lessee  has  agreed  to  carry  environmental
impairment  liability  insurance,  naming the Company, as lessor, as an insured,
covering the spillage,  seepage or other loss of petroleum  products,  hazardous
wastes,  or  similar  materials  onto the  leased  premises  and has  agreed  to
indemnify the Company,  as lessor,  against  damage from such  occurrences.  The
Indianapolis  property is located  approximately 0.1 mile east of Reilly Tar and
Chemical Corporation ("Reilly"), a federal superfund site listed on the National
Priorities  List for  clean-up.  The Reilly site has known soil and  groundwater
contamination.  There  are also  other  sites  in the  general  vicinity  of the
Company's  Indianapolis  property that have known  contamination.  Environmental
reports  obtained by the Company have  disclosed no evidence that  activities on
the Company's  Indianapolis  property have caused or  contributed  to the area's
contamination.

         The  Company  believes it is  currently  in  material  compliance  with
applicable  laws  and  regulations  and  that  the  cost of  compliance  has not
materially   affected  results  of  operations.   See  "Legal  Proceedings"  for
additional information regarding certain regulatory matters.

ITEM 2. PROPERTIES

         The Company's  headquarters  and principal place of business is located
at 5601 West Buckeye  Road,  Phoenix,  Arizona on  approximately  43 acres.  The
Company owns  approximately  35 acres and the  remaining 8 acres are leased from
Mr. L. Randy  Knight,  an officer  and  director  of the  Company and one of its
principal  shareholders.  See "Certain  Relationships and Related Transactions,"
below,  for  additional  information.  In October  1997,  the Company  completed
construction of a bulk fuel storage  facility and fueling islands at its Phoenix
headquarters  to obtain  greater  operating  efficiencies.  In June of 1998, the
Company completed expansion of its headquarters facilities.

         The  Company  owns  and  operates  a  9.5  acre  regional  facility  in
Indianapolis,  Indiana.  The facility includes a truck terminal,  administrative
offices,  and dispatching and maintenance  services,  as well as room for future
expansion, and will serve as a base for the Company's operations in the Midwest.
The Company completed its initial expansion of this facility in October, 1998.

         The  Company's  operations  near Houston are  currently  located on the
premises of one of the  Company's  significant  customers,  for whom it provides
dedicated services.  These facilities also  support the  Company's non-dedicated

                                       -6-

operations in the Texas and Louisiana region.  The Company has acquired property
in Katy,  Texas for its regional  headquarters and construction of the Company's
new facility is expected to be completed by January, 2000.

         In March 1999, the Company entered into a lease for terminal facilities
in  Corsicana,  Texas,  from which the Company  will operate in order to provide
dedicated services to one of its larger customers.  The Company's  operations in
Corsicana, Texas will be coordinated through the Company's regional headquarters
located in Katy, Texas.

         The Company leases office facilities in California,  Oklahoma and Utah,
which it uses for fleet maintenance,  record keeping and general operations. The
Company  purchased  property  during 1998 in Fontana,  California  to serve as a
trailer drop and  dispatching  facility to support the  Company's  operations in
California.  The Company also leases space in various  locations  for  temporary
trailer storage.  Management believes that replacement space comparable to these
facilities is readily obtainable, if necessary.

         As of December 31, 1998, the Company's  aggregate  monthly rent for all
leased properties was approximately $35,000.

         The  Company  believes  that its  current  facilities  and those  under
expansion  are  suitable  and  adequate  for  its  present  needs.  The  Company
periodically   seeks  to  improve  its  facilities  or  identify  new  favorable
locations.  The Company has not encountered  any significant  impediments to the
location or addition of new facilities.

ITEM 3. LEGAL PROCEEDINGS

         The  Company  is  a  party  to   ordinary,   routine   litigation   and
administrative   proceedings  incidental  to  its  business.  These  proceedings
primarily  involve  personnel  matters,  including equal employment  opportunity
claims,  and claims for  personal  injury or  property  damage  incurred  in the
transportation of freight.  The Company maintains insurance to cover liabilities
arising from the  transportation of freight in amounts in excess of self-insured
retentions.  See "Business -- Safety and Risk  Management."  It is the Company's
policy to comply  with  applicable  equal  employment  opportunity  laws and the
Company  periodically  reviews its policies and practices  for equal  employment
opportunity compliance.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         The Company did not submit any matter to a vote of its security holders
during the fourth quarter of 1998.

                                       -7-

                                     PART II

ITEM 5. MARKET FOR COMPANY'S COMMON EQUITY AND RELATED SHAREHOLDER MATTERS

         The Company's common stock is traded on the NASDAQ National Market tier
of The NASDAQ  Stock  Market under the symbol  KNGT.  The  following  table sets
forth, for the period  indicated,  the high and low bid information per share of
the Company's  common stock as quoted through the  NASDAQ-NMS.  Such  quotations
reflect  inter-dealer prices,  without retail markups,  markdowns or commissions
and, therefore, may not necessarily represent actual transactions.

                                            HIGH             LOW
                                            ----             ---
                 1997
                 First Quarter           $   16.83       $   12.50
                 Second Quarter          $   19.00       $   13.67
                 Third Quarter           $   19.17       $   14.33
                 Fourth Quarter          $   21.33       $   15.17

                 1998
                 First Quarter           $   21.33       $   16.33
                 Second Quarter          $   21.92       $   15.00
                 Third Quarter           $   19.88       $   12.88
                 Fourth Quarter          $   28.50       $   14.75

         As of March 4, 1999,  the  Company  had 70  shareholders  of record and
approximately  1,550  beneficial  owners in  security  position  listings of its
common stock.

         The Company has never paid cash  dividends on its common stock,  and it
is the current  intention of management to retain earnings to finance the growth
of the Company's  business.  Future  payment of cash  dividends will depend upon
financial  condition,  results of  operations,  cash  requirements,  and certain
corporate  law  requirements,  as well as other factors  deemed  relevant by the
Board of Directors.

                                       -8-

ITEM 6. SELECTED FINANCIAL DATA

         The selected consolidated financial data presented below for, and as of
the end of, each of the years in the five-year  period ended  December 31, 1998,
are derived from the Company's  Consolidated  Financial  Statements,  which have
been  audited  by  Arthur  Andersen  LLP,  independent  public  accountants,  as
indicated in their  report.  The  information  set forth below should be read in
conjunction with  "Management's  Discussion and Analysis of Financial  Condition
and Results of Operations," below, and the Consolidated Financial Statements and
Notes thereto included in Item 8 of this Form 10-K.



                                                              YEARS ENDED DECEMBER 31,
                                          -----------------------------------------------------
                                           1998        1997        1996        1995        1994
                                           ----        ----        ----        ----        ----
                                (DOLLAR AMOUNTS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS AND OPERATING DATA)
                                                                           
STATEMENTS OF INCOME DATA:
 Operating revenue                       $125,030     $99,428     $77,504     $56,170     $37,543
 Operating expenses                       102,049      81,948      64,347      45,569      29,431
 Income from operations                    22,981      17,480      13,157      10,601       8,112
 Net interest expense and other              (259)        (18)       (346)       (196)       (734)
 Income before income taxes                22,722      17,462      12,810      10,406       7,378
 Net income                                13,346      10,252       7,510       5,806       4,094
 Diluted net income per share (1)             .87         .68         .52         .43         .33

BALANCE SHEET DATA (AT END OF PERIOD):
 Working capital (deficit)               $  3,242     $ 2,044     $ 4,141     $  (293)    $ 1,761
 Total assets                             116,958      82,690      64,118      43,099      32,588
 Long-term obligations, net of current      7,920          --          53         981       2,117
 Shareholders' equity                      70,646      56,798      45,963      24,732      18,903

OPERATING DATA (UNAUDITED):
 Operating ratio(2)                          81.6%       82.4%       83.0%       81.1%       78.4%
 Average revenue per mile                $   1.24     $  1.22     $  1.24     $  1.26     $  1.29
 Average length of haul (miles)               489         500         489         494         482
 Empty mile factor                           10.0%        9.6%        9.6%       10.3%       10.1%
 Tractors operated at end of period(3)        933         772         575         425         291
 Trailers operated at end of period         2,809       2,112       1,529       1,044         639


- ----------
(1)  Net  income  per share  for all  periods  presented  has been  restated  in
     accordance  with  Statement  of  Financial  Accounting  Standards  No. 128,
     "Earnings per Share".
(2)  Operating expenses as a percentage of operating revenue.
(3)  Includes 231 independent contractor operated vehicles at December 31, 1998;
     includes 192 independent contractor operated vehicles at December 31, 1997;
     158  independent  contractor  operated  vehicles at December 31, 1996;  115
     independent  contractor  operated  vehicles at December  31,  1995;  and 29
     independent contractor operated vehicles at December 31, 1994.

                                       -9-

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
        RESULTS OF OPERATIONS

INTRODUCTION.

         EXCEPT FOR THE HISTORICAL  INFORMATION CONTAINED HEREIN, THE DISCUSSION
IN THIS ANNUAL REPORT  CONTAINS  FORWARD-LOOKING  STATEMENTS THAT INVOLVE RISKS,
ASSUMPTIONS  AND  UNCERTAINTIES  WHICH ARE  DIFFICULT TO PREDICT.  WORDS SUCH AS
"BELIEVE,"  "MAY," "COULD,"  "EXPECTS,"  "LIKELY" AND VARIATIONS OF THESE WORDS,
AND  SIMILAR   EXPRESSIONS,   ARE  INTENDED  TO  IDENTIFY  SUCH  FORWARD-LOOKING
STATEMENTS.  THE COMPANY'S  ACTUAL  RESULTS COULD DIFFER  MATERIALLY  FROM THOSE
DISCUSSED  HEREIN.  FACTORS THAT COULD CAUSE OR CONTRIBUTE  TO SUCH  DIFFERENCES
INCLUDE,  BUT ARE NOT LIMITED TO, THOSE DISCUSSED BELOW IN THE SECTION  ENTITLED
"FACTORS  THAT MAY AFFECT  FUTURE  RESULTS," AS WELL AS THOSE  DISCUSSED IN THIS
ITEM AND ELSEWHERE IN THIS ANNUAL REPORT.

GENERAL

         The  following  discussion  of the  Company's  financial  condition and
results of operations for the three-year  period ended December 31, 1998, should
be read in conjunction with the Company's  Consolidated Financial Statements and
Notes thereto contained elsewhere in this report.

         Knight was incorporated in 1989 and commenced  operations in July 1990.
For the  five-year  period  ended  December 31, 1998,  the  Company's  operating
revenue grew at a 36.5% compounded  annual rate, while net income increased at a
40.4% compounded annual rate.

         The Company has established  regional  operations in Phoenix,  Arizona;
Indianapolis, Indiana; and Katy, Texas. The Company's headquarters facilities in
Phoenix,  Arizona,  serve the Western United States. The Company's operations in
Indianapolis allow the Company to serve customers in the Midwest and on the East
Coast and provide a platform for the  expansion of the  Company's  operations in
those  regions.  The  Company's  operations  in Katy,  Texas were  undertaken to
provide  dedicated  service  to a large  customer  and to provide a base for the
expansion of operations in the Texas and Louisiana regions.

         To support its growth, the Company initiated an independent  contractor
program in 1994. The Company's  decision to utilize  independent  contractors as
part of the Company's  fleet expansion was based on several  factors,  including
reduced Company capital  requirements,  since  independent  contractors  provide
their own  tractors.  Use of  independent  contractors  also resulted in a lower
turnover rate. Due to the use of independent contractors, the Company originally
experienced a decrease in salaries,  wages and benefits,  fuel and  maintenance,
and other expenses,  as a percentage of operating  revenue,  and a corresponding
increase in purchased transportation as a percentage of operating revenue. As of
December  31,  1998,  the  Company  had  231  tractors  owned  and  operated  by
independent  contractors.  The Company  expanded its  Company-owed  fleet during
1998. As the  Company-owed  fleet has  expanded,  purchased  transportation  has
decreased   slightly  as  a   percentage   of   operating   revenue.   Purchased
transportation  represents the amount an independent  contractor is paid to haul
freight for the Company on a mutually agreed per-mile basis.

                                      -10-

RESULTS OF OPERATIONS

         The  following  table sets forth the  percentage  relationships  of the
Company's expense items to operating revenue for the three-year period indicated
below:

                                            YEARS ENDED DECEMBER 31,
                                            ------------------------
                                             1998    1997      1996
                                             ----    ----      ----
         Operating revenue                  100.0%   100.0%   100.0%
                                            -----    -----    -----
         Operating expenses:
         Salaries, wages and benefits        28.7     28.2     28.7
         Fuel                                 9.7     10.2     10.2
         Operations and maintenance           5.9      5.6      5.2
         Insurance and claims                 2.5      2.5      3.6
         Operating taxes and licenses         4.2      4.1      3.9
         Communications                        .8       .6       .6
         Depreciation and amortization       10.0      9.6      9.7
         Purchased transportation            17.4     19.2     18.6
         Miscellaneous operating expenses     2.4      2.4      2.5
                                            -----    -----    -----
         Total operating expenses            81.6     82.4     83.0
                                            -----    -----    -----
         Income from operations              18.4     17.6     17.0
         Net interest expense                  .2       --       .5
                                            -----    -----    -----
         Income before income taxes          18.2     17.6     16.5
         Income taxes                         7.5      7.3      6.8
                                            -----    -----    -----
         Net Income                          10.7%    10.3%     9.7%
                                            =====    =====    =====

FISCAL 1998 COMPARED TO FISCAL 1997

         Operating  revenue  increased  by 25.7% to $125.0  million in 1998 from
$99.4 million in 1997.  This increase  resulted from  expansion of the Company's
customer base and increased  volume from existing  customers and was facilitated
by a substantial increase in the Company's tractor and trailer fleet,  including
an increase in the Company's independent  contractor fleet, during 1998 compared
to 1997. The Company's fleet  increased by 20.9% to 933 tractors  (including 231
owned by  independent  contractors)  as of December 31, 1998,  from 772 tractors
(including  192 owned by  independent  contractors)  as of  December  31,  1997.
Average revenue per mile increased to $1.24 per mile for the year ended December
31,  1998,  from $1.22 per mile for the same period in 1997,  reflecting  higher
demand for the  Company's  services  resulting in continued  upward  pressure on
rates in all of the Company's operating regions.  Equipment utilization averaged
120,500 miles per tractor in 1998,  down slightly when compared to an average of
121,459 miles per tractor in 1997. This change reflects increased competition in
the short-to-medium truckload carrier business.

         Salaries,  wages and benefits  expense  increased  as a  percentage  of
operating  revenue to 28.7% for 1998 from 28.2% for 1997 primarily as the result
of the expansion of the  Company-owned  tractor/trailer  fleet. For its drivers,
the Company records accruals for workers'  compensation  benefits as a component
of its claim accrual,  and the related  expense is reflected in salaries,  wages
and benefits expenses in its consolidated statements of income.

         Fuel expense decreased as a percentage of operating revenue to 9.7% for
1998 from 10.2% in 1997 due mainly to lower  average  fuel  prices  during  1998
compared to 1997. The Company  cannot predict  whether higher prices will return

                                      -11-

or the extent to which fuel  surcharges  could be  collected  from  customers to
offset such increases if they occur.

         Operations  and  maintenance  expense  increased  as  a  percentage  of
operating  revenue  to 5.9% for 1998 from 5.6% in 1997.  This  increase  was the
result of the decrease in the number of independent  contractors as a percentage
of the Company's  entire fleet to 24.8 in 1998,  compared to 24.9% in 1997,  and
a decrease in equipment  utilization during 1998.

         Insurance  and claims  expense  remained  constant as a  percentage  of
operating revenue at 2.5% for both 1998 and 1997.

         Operating taxes and license expense increased  slightly as a percentage
of operating  revenue to 4.2% for 1998 from 4.1% for 1997. The increase resulted
primarily  from the  decrease  in the  number of  independent  contractors  as a
percentage of the Company's entire fleet during 1998 as independent  contractors
are  responsible  for  paying  their  own  mileage  taxes,  the  increased  cost
associated  with  the  licensing  of  trailers  for use in  states  with  higher
licensing fees, and a decrease in equipment utilization during 1998.

         Communications  expenses increased as a percentage of operating revenue
to 0.8% in 1998 compared to 0.6% in 1997. The increase  resulted  primarily from
an  increase  in the  Company's  overall  business  volume,  and a  decrease  in
equipment utilization during 1998.

         Depreciation and amortization  expense increased to 10.0% for 1998 from
9.6% in  1997.  The  increase  resulted  from  the  decrease  in the  number  of
independent  contractors  as a percentage at the  Company's  entire fleet during
1998, and a decrease in equipment utilization during 1998.

         Purchased  transportation expense decreased to 17.5% in 1998 from 19.2%
in 1997 due to a combination  of the increase in the Company's  revenue per mile
and the decrease in the number of independent contractors as a percentage of the
Company's entire fleet during 1998.

         Miscellaneous  operating expenses remained steady,  with no significant
change taking place in 1998.

         As a  result  of the  above  factors,  the  Company's  operating  ratio
(operating  expenses  expressed as a percentage of operating  revenue) was 81.6%
for 1998, compared to 82.4% for 1997.

         Net interest expense  increased as a percentage of operating revenue to
0.2% for 1998 from less  than  0.1% in 1997 as a result of the  purchase  during
1998 of debt financed revenue equipment to expand the Company's fleet.

         Income  taxes have been  provided  at the  statutory  federal and state
rates,  adjusted for certain  permanent  differences in income for tax purposes.
Income tax expense  increased  as a  percentage  of revenue to 7.5% for the year
ended December 31, 1998 from 7.3% for the year ended December 31, 1997 primarily
due to the decrease in the Company's operating ratio.

         As a result of the  preceding  changes,  the  Company's net income as a
percentage of operating revenue increased to 10.7% in 1998, from 10.3% in 1997.

FISCAL 1997 COMPARED TO FISCAL 1996

         Operating  revenue  increased  by 28.3% to $99.4  million  in 1997 from
$77.5 million in 1996.  This increase  resulted from  expansion of the Company's
customer base and increased  volume from existing  customers and was facilitated
by a substantial increase in the Company's tractor and trailer fleet, including

                                      -12-

an increase in the Company's independent  contractor fleet, during 1997 compared
to 1996. The Company's fleet  increased by 34.3% to 772 tractors  (including 192
owned by  independent  contractors)  as of December  31, 1997 from 575  tractors
(including  158 owned by  independent  contractors)  as of  December  31,  1996.
Average  revenue per mile declined to $1.22 per mile for the year ended December
31, 1997 from $1.24 per mile for the same period in 1996,  reflecting  continued
pressure on rates and increased  competition  in all of the Company's  operating
regions.  Equipment utilization averaged 121,459 miles per tractor in 1997, down
slightly when compared to an average of 121,960 miles per tractor in 1996.  This
change reflects increased  competition in the short-to-medium  truckload carrier
business.

         Salaries,  wages and benefits  expense  decreased  as a  percentage  of
operating revenue to 28.2% for 1997 from 28.7% for 1996, primarily the result of
the  increase  in the ratio of  tractors to  non-driving  employees.  This ratio
measures  productivity  and  efficiency of  non-driving  personnel.  The Company
records accruals for workers'  compensation as a component of its claim accrual,
and the related expense is reflected in salaries, wages and benefits expenses in
its consolidated statements of income.

         Fuel expense remained  constant as a percentage of operating revenue at
10.2% for both 1997 and 1996.  Operations and maintenance expense increased as a
percentage  of  operating  revenue  to 5.6% for  1997  from  5.2% in 1996.  This
increase was the result of lower revenue per mile and the decrease in the number
of  independent  contractors  as a percentage of the  Company's  entire fleet to
24.8% in 1997, compared to 27.5% in 1996.

         Insurance  and claims  expense  decreased as a percentage  of operating
revenue to 2.5% for 1997 compared to 3.6% for 1996. This decrease  resulted from
lower insurance premiums and a decrease in the Company's accident rate.

         Operating  taxes and  license  expense  increased  as a  percentage  of
operating  revenue to 4.1% for 1997 from 3.9% for 1996.  The  increase  resulted
primarily from the increased cost  associated with the licensing of trailers for
use in states with higher licensing fees.

         Communications  expenses remained constant,  with no significant change
taking place in 1997 compared to 1996.

         Depreciation and amortization  expense  decreased to 9.6% for 1997 from
9.7% in 1996.  The small  decrease  resulted  from an increase in revenue  being
generated  at  each  of the  Company's  facilities  and  the  absence  of  large
expenditures for any additional facilities.

         Purchased  transportation expense increased to 19.2% in 1997 from 18.6%
in 1996 due to the  decrease  in the  Company's  revenue  per mile.  Independent
contractors are compensated at a fixed rate per mile.

         Miscellaneous  operating expenses remained steady,  with no significant
change taking place in 1997.

         As a  result  of the  above  factors,  the  Company's  operating  ratio
(operating  expenses as a percentage  of operating  revenue) was 82.4% for 1997,
compared to 83.0% for 1996.

         Net interest expense  decreased as a percentage of operating revenue to
less than 0.1% for 1997 from 0.5% in 1996 as a result of the  application of the
proceeds from the Company's  secondary  stock offering in July 1996,  which were
used to reduce debt and to purchase revenue equipment.

                                      -13-

         Income  taxes have been  provided  at the  statutory  federal and state
rates,  adjusted for certain  permanent  differences in income for tax purposes.
Income tax expense  increased  as a  percentage  of revenue to 7.3% for the year
ended December 31, 1997 from 6.8% for the year ended December 31, 1996 primarily
due to the lower revenue per mile.

         As a result of the  preceding  changes,  the  Company's net income as a
percentage of operating revenue was 10.3% in 1997, compared to 9.7% in 1996.

LIQUIDITY AND CAPITAL RESOURCES

         The  growth  of the  Company's  business  has  required  a  significant
investment in new revenue equipment. The Company's primary source of capital has
been  funds  provided  by  operations,  term  borrowings  to  finance  equipment
purchases, the Company's line of credit, and the Company's initial and secondary
public offerings in 1994 and 1996, respectively.  Net cash provided by operating
activities totaled approximately $29.3 million,  $23.6 million and $14.3 million
for the years ended December 31, 1998, 1997 and 1996, respectively.

         Capital  expenditures  for the  purchase of revenue  equipment,  office
equipment and leasehold  improvements totaled approximately $31.5 million, $26.3
million and $24.8 million for the years ended December 31, 1998,  1997 and 1996,
respectively.   The  Company  anticipates  that  capital  expenditures,  net  of
trade-ins,  will be approximately  $41 million for 1999, to be used primarily to
acquire new revenue equipment to expand the Company's fleet, to upgrade existing
facilities, and to acquire additional facilities.

         Net cash  provided by  financing  activities  and net direct  equipment
financing was  approximately  $8.9 million for the year ended December 31, 1998.
Net cash used in financing  activities  and net direct  equipment  financing was
$0.8  million  for the year  ended  December  31,  1997.  Net cash  provided  by
financing  activities and net direct equipment  financing was approximately $8.3
million for the year ended  December 31, 1996.  The change between 1998 and 1997
was due to the Company  borrowing  approximately  $11.5 million during 1998. The
change between 1997 and 1996 was due to the Company's ability to offset the cost
of purchasing  revenue  equipment  with the proceeds of the Company's  secondary
stock offering during 1996.

         The Company  maintains a $10 million  revolving line of credit with its
lender and uses that line to finance the  acquisition  of revenue  equipment and
other  corporate  purposes to the extent the  Company's  need for capital is not
provided  by funds from  operations.  Under the  Company's  line of credit,  the
Company is  obligated to comply with certain  financial  covenants.  The rate of
interest on borrowings  against the line of credit will vary  depending upon the
interest rate election made by the Company, based on either the London Interbank
Offered Rate (LIBOR plus .625%),  or the prime rate.  At December 31, 1998,  and
March 4, 1999, the Company had $3,500,000 in borrowings under its revolving line
of credit.  The line of credit  expires  in May 1999.  Management  believes  the
Company  will be able to renew or  renegotiate  its line of  credit  on terms at
least as favorable as the current terms of the line of credit.

         The  Company  borrowed  $10  million  during  1998  under  a  long-term
Promissory  Note with its lender.  The Note is unsecured and bears interest at a
fixed rate of 5.75% per annum. As of December 31, 1998, $9,711,628 was currently
owed under the Note, with monthly  payments of $193,558  payable through October
2003.

         Management  believes that the cash flow from  operating  activities and
the availability of borrowings will be sufficient to meet the Company's  capital
needs through the next 18 months.  The Company will continue to have significant
capital requirements over the long term, which may require the Company to

                                      -14-

incur  additional  debt or seek  additional  equity  capital in the future.  The
availability of this capital will depend upon prevailing market conditions,  the
market  price of the  Company's  Common  Stock and other  factors over which the
Company has no control, as well as the Company's financial condition and results
of operations.

SEASONALITY

         To date, the Company's  revenue has not shown any significant  seasonal
pattern.  Because the Company operates primarily in Arizona,  California and the
Western United States,  winter weather generally has not adversely  affected the
Company's business. Expansion of the Company's operations in the Midwest, on the
East Coast, and in the Texas and Louisiana regions,  could expose the Company to
greater operating variances due to seasonal weather in these regions.

INFLATION

         Many of the Company's operating expenses, including fuel costs and fuel
taxes,  are  sensitive to the effects of inflation  and changing  prices,  which
could result in higher  operating  costs and lower income from  operations.  The
effects of  inflation  on the  Company's  business  during  1998,  1997 and 1996
generally was not significant. During 1998, the Company experienced historically
low fuel  prices,  as a result of  conditions  in the  petroleum  industry.  The
conditions that created these historic low price conditions may not persist.

YEAR 2000 CAPABILITIES.

         The "Year 2000 Issue" arose because many existing computer programs use
only the last two digits to refer to a year. Therefore,  these computer programs
do not  properly  recognize a year that begins with "20" instead of the familiar
"19".  If not  corrected,  many  computer  applications  could  fail  or  create
erroneous results.

         The Company has implemented or is in the process of reviewing, testing,
and implementing various modifications to ensure that its computer equipment and
software will function  properly in the Year 2000 and beyond.  For this purpose,
the term "computer equipment and software" includes systems commonly referred to
as  information  technology  systems ("IT  systems"),  such as data  processing,
dispatch,  accounting,  telephone,  and other  miscellaneous  systems as well as
systems that are not commonly  referred to as IT systems,  such as fax machines,
heating and air  conditioning  systems,  and other  miscellaneous  systems.  The
Company has been and will be in contact with its  significant  vendors,  service
providers,   and  customers,   particularly  those  with  whom  electronic  data
information  ("EDI")  transactions  are exchanged,  to determine and resolve any
Year 2000 issues. The Company currently anticipates that all necessary Year 2000
modifications  will be completed  in the next six months,  and that such efforts
will be completed prior to any anticipated  impact on its computer equipment and
software.

         All internal and external costs associated with the Company's Year 2000
compliance  activities are expensed as incurred.  The Company  believes that the
costs of addressing  the Year 2000 issue will not have a material  impact on its
financial position.

         Since all major  computerized  systems and applications  will have been
reviewed and tested as part of the Year 2000 project,  the Company feels that it
has reasonably addressed all material risks that may effect its operations.  The
Company  presently  believes that the Year 2000 issue will not pose  significant
operational  problems for the Company.  However, if all year 2000 issues are not
properly identified and corrected,  there can be no assurance that the Year 2000
issue will not  materially  effect the  Company's  relationships  with  vendors,

                                      -15-

customers, and others. Also, there can be no assurance that the Year 2000 issues
of other  entities with whom the Company deals will not have a material  adverse
impact on the Company's operations.

         The  Company  is  in  the  process  of  evaluating   and  developing  a
contingency plan to provide for the most reasonably  likely worst case scenarios
regarding Year 2000 compliance. The contingency plan is expected to be completed
in 1999.

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

         In June 1997,  the FASB issued SFAS No.  130,  Reporting  Comprehensive
Income.   SFAS  130   establishes   standards   for  reporting  and  display  of
comprehensive income and its components  (revenues,  gains and losses) in a full
set for general-purpose  financial statements.  SFAS 130 requires that all items
that are required to be recognized under  accounting  standards as components of
comprehensive income be reported in a financial statement that is displayed with
the same prominence as other financial statements. Reclassification of financial
statements for earlier periods provided for comparative purposes is required.

         In June  1997,  the  FASB  issued  Statement  of  Financial  Accounting
Standards No. 131 (SFAS No. 131),  Disclosures  About  Segments of an Enterprise
and Related  Information,  which  supersedes  Statement of Financial  Accounting
Standards No. 14,  Financial  Reporting  for Segments of a Business  Enterprise.
SFAS No. 131 establishes  standards for the way that public business enterprises
report information about operating  segments in annual financial  statements and
requires that those  enterprises  report  selected  information  about operating
segments  in  interim  financial   reports  issued  to  shareholders.   It  also
establishes  standards  for related  disclosures  about  products and  services,
geographic areas, and major customers. This statement is effective for financial
statements for periods beginning after December 15, 1997.

FACTORS THAT MAY AFFECT FUTURE RESULTS

         A number of factors over which the Company has little or no control may
affect the Company's future results.  Fuel prices,  insurance  costs,  liability
claims,  interest rates, the availability of qualified drivers,  fluctuations in
the resale  value of  revenue  equipment,  and  customers'  business  cycles and
shipping  demands are  economic  factors over which the Company has little or no
control.  Significant  increases or rapid fluctuations in fuel prices,  interest
rates or  increases in insurance  costs or liability  claims,  to the extent not
offset by increases in freight rates, would reduce the Company's  profitability.
Although the Company's  independent  contractors  are responsible for paying for
their own equipment,  fuel and other operating costs,  significant  increases in
these costs could  cause them to seek  higher  compensation  from the Company or
other contractual opportunities. Difficulty in attracting or retaining qualified
drivers, including independent contractors, or a downturn in customers' business
cycles or  shipping  demands  also could have a material  adverse  effect on the
growth and  profitability of the Company.  If a shortage of drivers should occur
in the future or if the Company  were unable to continue to attract and contract
with independent contractors, the Company could be required to adjust its driver
compensation package,  which could adversely affect the Company's  profitability
if not offset by a corresponding increase in rates.

         The Company's growth has been made possible through the addition of new
revenue  equipment.  Difficulty in financing or obtaining new revenue  equipment
(for  example,  delivery  delays from  manufacturers  or the  unavailability  of
independent  contractors)  could restrict future growth.  If the resale value of
the Company's revenue equipment were to decline,  the Company could be forced to
retain some of its  equipment  longer,  with a resulting  increase in  operating
expenses for maintenance and repairs.

                                      -16-

         The Company has experienced significant and rapid growth in revenue and
profits since the  inception of its business in 1990.  There can be no assurance
that the Company's  business  will continue to grow in a similar  fashion in the
future or that the Company can effectively adapt its management,  administrative
and operational systems to respond to any future growth.  Further,  there can be
no assurance that the Company's operating margins will not be adversely affected
by future  changes in and expansion of the  Company's  business or by changes in
economic conditions.

         Currently,   a  significant   portion  of  the  Company's  business  is
concentrated  in the  Arizona  and  California  markets  and a general  economic
decline or a natural  disaster in either of these  markets could have a material
adverse effect on the growth and profitability of the Company. If the Company is
successful in deriving a more  significant  portion of its revenues from markets
in the Texas and Louisiana  regions and the Midwest and on the East Coast in the
near future, its growth and profitability could be materially adversely affected
by  general  economic  declines  or  natural  disasters  in those  markets.  See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations"; and "Business -- Operations and Marketing and Customers."

         The Company has established  operations near Houston,  Texas to provide
dedicated  services  to one of its larger  customers  and to  commence  regional
service  in  the  Texas  and  Louisiana  regions  and  initiated  operations  in
Indianapolis, Indiana, in order to access markets in the Midwest and on the East
Coast.  These  operations  will require the  commitment  of  additional  revenue
equipment  and  personnel,   as  well  as  management   resources,   for  future
development. These initiatives represent the first established operations of the
Company in markets  outside of its primary  regional  operations  in the Western
United States. Should the growth in the Company's operations near Houston, Texas
or in Indianapolis,  Indiana slow or stagnate, the results of Company operations
could be adversely affected.  The Company may encounter operating  conditions in
these new markets that differ substantially from those previously experienced in
its Western United States markets.  There can be no assurance that the Company's
regional  operating  strategy,  as employed in the Western United States, can be
duplicated successfully or that it will not take longer than expected or require
a more  substantial  financial  commitment  than  anticipated  in order  for the
Company to generate positive operating results in these new markets.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

         Under Financial  Accounting  Reporting  Release Number 48 issued by the
Securities  and Exchange  Commission in January 1997, the Company is required to
disclose  information  concerning  market risk with respect to foreign  exchange
rates,  interest rates,  and commodity  prices.  The Company has elected to make
such  disclosures,  to the  extent  applicable,  using  a  sensitivity  analysis
approach, based on hypothetical changes in interest rates and commodity prices.

         The  Company  has  not  had  occasion  to  use   derivative   financial
instruments  for risk  management  purposes  and  does  not use them for  either
speculation  or trading.  Because the Company's  operations  are confined to the
United States, the Company is not subject to foreign currency risk.

         The Company is subject to interest  rate risk, to the extent it borrows
against  its line of credit  or incurs  additional  debt in the  acquisition  of
revenue  equipment.  The Company  attempts to manage its  interest  rate risk by
carrying as little debt as possible.  The Company has not entered into  interest
rate swaps or other  strategies  designed  to protect it against  interest  rate
risk. In the opinion of  management,  an increase in short-term  interest  rates
would not have a material adverse effect on the Company's  financial  condition,
based on the level of debt  carried by the  Company  as of  December  31,  1998.
Management  does not  foresee or expect any  significant  changes in exposure to

                                      -17-

interest rate  fluctuations or in how that exposure is managed by the Company in
the near future. The Company has not issued corporate debt instruments.

         The  Company  is  subject  to  commodity  price  risk with  respect  to
purchases  of fuel and tires.  The  Company  has not used  derivative  financial
instruments to manage these risks. The Company has installed fuel islands at its
Phoenix, Arizona and Indianapolis facilities which enable it to purchase fuel at
"rack" prices,  saving pumping  charges.  Where  possible,  the Company seeks to
participate  in tire  testing  programs  to reduce the cost of tires.  It is the
Company's policy to pass on price increases in fuel, tires, or other commodities
through rate  increases or  surcharges,  to the extent the existing  market will
permit such costs to be passed  through to the  customer.  If the  Company  were
unable to pass  increased  costs on to customers  through rate  increases,  such
increases could adversely affect the Company's results of operations.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         The  Consolidated  Balance  Sheets of Knight  Transportation,  Inc. and
Subsidiaries  as of  December  31,  1998 and 1997 and the  related  Consolidated
Statements of Income, Shareholders' Equity, and Cash Flows for each of the three
years in the period ended December 31, 1998, together with the related notes and
report of Arthur Andersen LLP, independent public accountants,  are set forth at
pages 23 through 36, below.

ITEM 9. CHANGES IN AND DISAGREEMENTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

         None.

                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE COMPANY

         The Company hereby incorporates by reference the information  contained
under the  heading  "Election  of  Directors"  from its  definitive  Information
Statement to be delivered to  shareholders of the Company in connection with the
1999 Annual Meeting of Shareholders to be held May 12, 1999.

ITEM 11. EXECUTIVE COMPENSATION

         The Company  incorporates by reference the information  contained under
the heading "Executive  Compensation" from its definitive  Information Statement
to be  delivered  to  shareholders  of the Company in  connection  with the 1999
Annual Meeting of Shareholders to be held May 12, 1999.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The Company  incorporates by reference the information  contained under
the heading  "Security  Ownership of Certain  Beneficial  Owners and Management"
from its definitive Information Statement to be delivered to shareholders of the
Company in connection  with the 1999 Annual Meeting of  Shareholders  to be held
May 12, 1999.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         The Company  incorporates by reference the information  contained under
the heading "Certain Relationships and Related Transactions" from its definitive
Information  Statement  to be  delivered  to  shareholders  of  the  Company  in

                                      -18-

connection with the 1999 Annual Meeting of Shareholders to be held May 12, 1999.

                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

(a)      The  following  documents are filed as part of this report on Form 10-K
         at pages 23 through 36, below.

           1. Consolidated Financial Statements:

              KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

              Report of Arthur Andersen LLP, Independent Public Accountants
              Consolidated Balance Sheets as of December 31, 1998 and 1997
              Consolidated Statements of Income for the years ended December 31,
              1998,  1997  and  1996
              Consolidated  Statements of Shareholders' Equity for the years
              ended December 31, 1998, 1997 and 1996
              Consolidated  Statements  of Cash  Flows for the  years  ended
              December 31, 1998, 1997 and 1996
              Notes to Consolidated Financial Statements

           2. Consolidated Financial Statement Schedules required to be
              filed by Item 8 and Paragraph (d) of Item 14:

         Schedules  not  listed  have been  omitted  because  of the  absence of
conditions  under  which they are  required  or because  the  required  material
information is included in the Consolidated Financial Statements or Notes to the
Consolidated Financial Statements included herein.

           3. Exhibits:

         The  Exhibits  required  by Item 601 of  Regulation  S-K are  listed at
paragraph (c), below, and at the Exhibit Index beginning at page 38.

(b)      Reports on Form 8-K:

         No reports on Form 8-K were filed during the last quarter of the period
covered by this report on Form 10-K.

(c)      Exhibits:

         The  following  exhibits are filed with this Form 10-K or  incorporated
herein by reference to the document set forth next to the exhibit listed below:

                                      -19-

EXHIBIT
NUMBER                            DESCRIPTION
- ------                            -----------

3.1      Restated  Articles of  Incorporation  of the Company.  (Incorporated by
         reference  to Exhibit 3.1 to the  Company's  Registration  Statement on
         Form S-1 No. 33-83534.)

3.2      Amended and Restated Bylaws of the Company  (Incorporated  by reference
         to  Exhibit  3.2 to the  Company's  report on Form 10-K for the  period
         ending December 31, 1996).

4.1      Articles 4, 10 and 11 of the Restated  Articles of Incorporation of the
         Company.  (Incorporated  by  reference to Exhibit 3.1 to this Report on
         Form 10-K.)

4.2      Sections 2 and 5 of the Amended  and  Restated  Bylaws of the  Company.
         (Incorporated by reference to Exhibit 3.2 to this Report on Form 10-K.)

10.1     Purchase and Sale Agreement and Escrow Instructions (All Cash) dated as
         of March 1, 1994, between Randy Knight, the Company,  and Lawyers Title
         of Arizona. (Incorporated by reference to Exhibit 10.1 to the Company's
         Registration Statement on Form S-1 No. 33-83534.)

10.1.1   Assignment  and First  Amendment  to Purchase  and Sale  Agreement  and
         Escrow  Instructions.  (Incorporated  by reference to Exhibit 10.1.1 to
         Amendment No. 3 to the Company's Registration Statement on Form S-1 No.
         33-83534.)

10.1.2   Second   Amendment   to  Purchase   and  Sale   Agreement   and  Escrow
         Instructions. (Incorporated by reference to Exhibit 10.1.2 to Amendment
         No.  3  to  the  Company's  Registration  Statement  on  Form  S-1  No.
         33-83534.)

10.2     Net Lease and Joint Use Agreement  between Randy Knight and the Company
         dated as of March 1, 1994.  (Incorporated  by reference to Exhibit 10.2
         to the Company's Registration Statement on Form S-1 No. 33-83534.)

10.2.1   Assignment  and First  Amendment  to Net  Lease  and Joint Use  Payment
         between L. Randy  Knight,  Trustee  of the R. K. Trust  dated  April 1,
         1993, and Knight  Transportation,  Inc. and certain other parties dated
         March 11, 1994 (assigning the lessor's interest to the R. K. Trust).

10.2.2   Second Amendment to Net Lease and Joint Use Agreement  between L. Randy
         Knight,  as Trustee of the R. K. Trust  dated  April 1, 1993 and Knight
         Transportation, Inc., dated as of September 1, 1997.

10.3     Form of Purchase and Sale Agreement and Escrow  Instructions (All Cash)
         dated as of October  1994,  between the Company and Knight Deer Valley,
         L.L.C.,  an  Arizona  limited  liability   company.   (Incorporated  by
         reference  to  Exhibit  10.4.1  to  Amendment  No.  3 to the  Company's
         Registration Statement on Form S-1 No. 33-83534.)

10.4     Loan  Agreement and Revolving  Promissory  Note each dated March,  1996
         between   First   Interstate   Bank  of   Arizona,   N.A.   and  Knight
         Transportation, Inc. and Quad K Leasing, Inc. (superseding prior credit
         facilities) (Incorporated by reference to Exhibit 10.4 to the Company's
         report on Form 10-K for the period ending December 31, 1996).

                                      -20-

EXHIBIT
NUMBER                            DESCRIPTION
- ------                            -----------

10.4.1   Modification  Agreement between Wells Fargo Bank, N.A., as successor by
         merger to First  Interstate Bank of Arizona,  N.A., and the Company and
         Quad-K  Leasing,  Inc.  dated  as of May  15,  1997.  (Incorporated  by
         reference to Exhibit 4.1 to the  Company's  report on Form 10-K for the
         period ending December 31, 1997.)

10.4.2*  Loan  Agreement and  Revolving  Line of Credit Note each dated July 14,
         1998,  between Wells Fargo Bank, N.A. and Knight  Transportation,  Inc.
         (superseding prior credit facilities)

10.4.3*  Term Note dated  October 1, 1998,  between  Wells Fargo Bank,  N.A. and
         Knight Transportation, Inc.

10.5     Amended and Restated  Knight  Transportation,  Inc.  Stock Option Plan,
         dated as of February 10, 1998.  (Incorporated by reference to Exhibit 1
         to the Company's Notice and Information Statement on Schedule 14(c) for
         the period ending December 31, 1997.)

10.6     Amended  Indemnification  Agreements  between the  Company,  Don Bliss,
         Clark A. Jenkins,  Gary J. Knight, Keith Knight, Kevin P. Knight, Randy
         Knight, G. D. Madden,  Minor Perkins and Keith Turley,  and dated as of
         February 5, 1997  (Incorporated  by  reference  to Exhibit  10.6 to the
         Company's report on Form 10-K for the period ending December 31, 1996).

10.7     Master  Equipment Lease Agreement dated as of January 1, 1996,  between
         the Company and Quad-K  Leasing,  Inc.  (Incorporated  by  reference to
         Exhibit 10.7 to the Company's  report on Form 10-K for the period ended
         December 31, 1995.)

10.8     Purchase  Agreement and Escrow  Instructions dated as of July 13, 1995,
         between the Company,  Swift  Transportation  Co., Inc. and United Title
         Agency of Arizona.  (Incorporated  by  reference to Exhibit 10.8 to the
         Company's report on Form 10-K for the period ended December 31, 1995.)

10.8.1   First  Amendment  to  Purchase   Agreement  and  Escrow   Instructions.
         (Incorporated by reference to Exhibit 10.8.1 to the Company's report on
         Form 10-K for the period ended December 31, 1995.)

10.9     Purchase and Sale Agreement dated as of February 13, 1996,  between the
         Company and RR-1  Limited  Partnership.  (Incorporated  by reference to
         Exhibit 10.9 to the Company's  report on Form 10-K for the period ended
         December 31, 1995.)

10.10    Asset  Purchase  Agreement  dated March 13,  1999,  by and among Knight
         Transportation,  Inc., Knight Acquisition Corporation,  Action Delivery
         Service,  Inc.  Action  Warehouse  Services,  Inc.  and Bobby R. Ellis,
         (Incorporated  by reference to Exhibit 2.1 to the  Company's  report on
         Form 8-K filed with the Securities and Exchange Commission on March 25,
         1999.)

21.1     Subsidiaries of the Company. (Incorporated by reference to Exhibit 21.1
         to the Company's report on Form 10-K for the period ending December 31,
         1995.)

23*      Consent of Arthur Andersen LLP

27*      Financial Data Schedule

- ---------------
*  Filed herewith.

                                      -21-

                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) of the Securities
Exchange Act of 1934, Knight Transportation, Inc. has duly caused this report on
Form  10-K  to be  signed  on its  behalf  by the  undersigned,  thereunto  duly
authorized.

                                             KNIGHT TRANSPORTATION, INC.


                                             By /s/ Kevin P.  Knight,
                                               ---------------------------------
                                             Kevin P.  Knight,
Date:  March 30, 1999.                       Chief Executive Officer

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report on Form 10-K has been  signed  below by the  following  persons  on
behalf of the Company and in the capacities and on the dates indicated.

         SIGNATURE AND TITLE                                     DATE

/s/ Randy Knight                                               March 30, 1999
- --------------------------------------------
Randy Knight
Chairman of the Board, Director

/s/ Kevin P. Knight                                            March 30, 1999
- --------------------------------------------
Kevin P. Knight
Chief Executive Officer, Director

/s/ Gary J. Knight                                             March 30, 1999
- --------------------------------------------
Gary J. Knight
President, Director

/s/ Keith T. Knight                                            March 30, 1999
- --------------------------------------------
Keith T. Knight
Executive Vice President, Director

/s/ Clark A. Jenkins                                           March 30, 1999
- --------------------------------------------
Clark A. Jenkins
Chief Financial Officer, Secretary, Director
Executive Vice President, Finance

/s/ Keith L. Turley                                            March 30, 1999
- --------------------------------------------
Keith L. Turley
Director

/s/ Donald A. Bliss                                            March 30, 1999
- --------------------------------------------
Donald A. Bliss
Director

/s/ G.D. Madden                                                March 30, 1999
- --------------------------------------------
G.D. Madden
Director

                                      -22-








                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                  CONSOLIDATED FINANCIAL STATEMENTS
                  AS OF DECEMBER 31, 1998 AND 1997
                  TOGETHER WITH REPORT OF INDEPENDENT
                  PUBLIC ACCOUNTANTS












                                      -23-


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS




To the Board of Directors and Shareholders of
Knight Transportation, Inc.:

We  have  audited  the  accompanying   consolidated  balance  sheets  of  KNIGHT
TRANSPORTATION,  INC. (an Arizona  corporation) and subsidiaries  (collectively,
the  Company) as of December  31,  1998 and 1997,  and the related  consolidated
statements of income,  shareholders' equity and cash flows for each of the three
years in the period ended December 31, 1998. These financial  statements are the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects,  the financial position of the Company as of December 31,
1998 and 1997,  and the results of its operations and its cash flows for each of
the three years in the period  ended  December  31,  1998,  in  conformity  with
generally accepted accounting principles.


                                                     ARTHUR ANDERSEN LLP


Phoenix, Arizona,
January 19, 1999.

                                      -24-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS
                        AS OF DECEMBER 31, 1998 AND 1997

                                                        1998            1997
                                                    ------------    ------------
ASSETS
CURRENT ASSETS:
 Cash and cash equivalents                          $    124,188    $   512,339
 Trade receivables, net of allowance for
  doubtful accounts of approximately
  $662,700 and $457,600, respectively                 18,248,984     11,934,364
 Notes receivable                                        561,608             --
 Inventories and supplies                              1,329,329        402,076
 Prepaid expenses                                      1,617,900        694,434
 Deferred tax assets (Note 2)                          2,740,200      1,907,800
                                                    ------------    -----------
 Total current assets                                 24,622,209     15,451,013
                                                    ------------    -----------
PROPERTY AND EQUIPMENT:
 Land and improvements                                 6,037,741      4,322,837
 Buildings and improvements                            5,970,919      1,855,092
 Furniture and fixtures                                3,169,514      2,146,637
 Shop and service equipment                            1,217,370      1,018,636
 Revenue equipment                                    93,672,070     75,695,123
 Leasehold improvements                                  469,037        432,467
                                                    ------------    -----------
                                                     110,536,651     85,470,792
 Less:  accumulated depreciation                     (25,964,744)    20,025,293)
                                                    ------------    -----------

PROPERTY AND EQUIPMENT, net                           84,571,907     65,445,499
                                                    ------------    -----------

NOTES RECEIVABLE                                       2,846,008             --

OTHER ASSETS (Note 6)                                  4,918,096      1,793,284
                                                    ------------    -----------
                                                    $116,958,220    $82,689,796
                                                    ============    ===========

                      LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT LIABILITIES:
 Accounts payable                                   $  7,143,476    $ 4,847,070
 Accrued liabilities                                   5,220,372      3,082,413
 Current portion of long-term debt (Note 3)            1,791,981         14,171
 Line of credit (Note 3)                               3,500,000      2,000,000
 Claims accrual (Note 5)                               3,724,385      3,463,322
                                                    ------------    -----------
 Total current liabilities                            21,380,214     13,406,976

LONG-TERM DEBT, less current portion (Note 3)          7,919,647             --

DEFERRED INCOME TAXES (Note 2)                        17,012,285     12,485,085
                                                    ------------    -----------
                                                      46,312,146     25,892,061
                                                    ------------    -----------
COMMITMENTS AND CONTINGENCIES (Notes 4, 5, 6 and 8)

SHAREHOLDERS' EQUITY (Notes 7 and 8):
 Preferred stock                                              --             --
 Common stock                                            149,814        149,243
 Additional paid-in capital                           24,509,012     24,007,386
 Retained earnings                                    45,987,248     32,641,106
                                                    ------------    -----------
 Total shareholders' equity                           70,646,074     56,797,735
                                                    ------------    -----------

                                                    $116,958,220    $82,689,796
                                                    ============    ===========

                 The accompanying notes are an integral part of
                       these consolidated balance sheets.

                                      -25-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                        CONSOLIDATED STATEMENTS OF INCOME
              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

                                       1998            1997            1996
                                   ------------    ------------    ------------
OPERATING REVENUE                  $125,030,245    $ 99,428,693    $ 77,503,786
                                   ------------    ------------    ------------
OPERATING EXPENSES:
   Salaries, wages and benefits      35,890,806      27,990,073      22,217,900
   Fuel                              12,156,740      10,182,487       7,890,607
   Operations and maintenance         7,438,511       5,584,178       4,017,698
   Insurance and claims               3,092,169       2,524,823       2,820,086
   Operating taxes and licenses       5,236,401       4,114,145       3,018,999
   Communications                       965,019         597,728         509,411
   Depreciation and amortization     12,446,438       9,560,569       7,520,905
   Purchased transportation          21,771,073      19,038,834      14,378,518
   Miscellaneous operating expenses   3,051,911       2,355,504       1,973,131
                                   ------------    ------------    ------------
                                    102,049,068      81,948,341      64,347,255
                                   ------------    ------------    ------------
    Income from operations           22,981,177      17,480,352      13,156,531
                                   ------------    ------------    ------------
OTHER INCOME (EXPENSE):
   Interest income                      160,228          49,747          51,730
   Interest expense                    (419,263)        (67,576)       (398,204)
                                   ------------    ------------    ------------
                                       (259,035)        (17,829)       (346,474)
                                   ------------    ------------    ------------
    Income before income taxes       22,722,142      17,462,523      12,810,057

INCOME TAXES                         (9,376,000)     (7,211,000)     (5,300,000)
                                   ------------    ------------    ------------

    Net income                     $ 13,346,142    $ 10,251,523    $  7,510,057
                                   ============    ============    ============

BASIC EARNINGS PER SHARE           $        .89    $        .69    $        .53
                                   ============    ============    ============

DILUTED EARNINGS PER SHARE         $        .87    $        .68    $        .52
                                   ============    ============    ============
WEIGHTED AVERAGE SHARES
  OUTSTANDING - BASIC                14,968,967      14,875,746      14,197,968
                                   ============    ============    ============
WEIGHTED AVERAGE SHARES
  OUTSTANDING - DILUTED              15,262,865      15,150,510      14,377,747
                                   ============    ============    ============

                 The accompanying notes are an integral part of
                       these consolidated balance sheets.

                                      -26-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                 CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996


                                           Common Stock       Additional
                                     ----------------------    Paid-in       Retained
                                        Shares      Amount     Capital       Earnings        Total
                                     -----------   --------   -----------   -----------   -----------
                                                                           
BALANCE, December 31, 1995            13,653,000   $136,530   $ 9,716,237   $14,879,526   $24,732,293
   Exercise of stock options               3,750         37        29,963            --        30,000
   Issuance of 1,200,000 shares of
     common stock, net of offering
     costs of $1,109,191 (Note 7)      1,200,000     12,000    13,678,809            --    13,690,809
   Net income                                 --         --            --     7,510,057     7,510,057
                                     -----------   --------   -----------   -----------   -----------

BALANCE, December 31, 1996            14,856,750    148,567    23,425,009    22,389,583    45,963,159
   Exercise of stock options              67,078        670       572,333            --       573,003
   Issuance of 594 shares of
     common stock (Note 7)                   594          6        10,044            --        10,050
   Net income                                 --         --            --    10,251,523    10,251,523
                                     -----------   --------   -----------   -----------   -----------

BALANCE, December 31, 1997            14,924,422    149,243    24,007,386    32,641,106    56,797,735
   Exercise of stock options              56,100        561       484,137            --       484,698
   Issuance of 960 shares of
     common stock (Note 7)                   960         10        17,489            --        17,499

   Net income                                 --         --            --    13,346,142    13,346,142
                                     -----------   --------   -----------   -----------   -----------

BALANCE, December 31, 1998            14,981,482   $149,814   $24,509,012   $45,987,248   $70,646,074
                                     ===========   ========   ===========   ===========   ===========

                 The accompanying notes are an integral part of
                       these consolidated balance sheets.

                                      -27-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996


                                                             1998            1997            1996
                                                         ------------    ------------    ------------
                                                                                       
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income                                             $ 13,346,142    $ 10,251,523    $  7,510,057
  Adjustments to reconcile net income to net
   cash provided by operating activities-
    Depreciation and amortization                          12,446,438       9,560,569       7,520,905
    Non-cash compensation expense for issuance of
     common stock to certain members of board of
     directors                                                 17,499          10,050              --
    Provision for doubtful accounts                           205,100         139,600          23,000
    Deferred income taxes, net                              3,694,800       3,470,127       2,211,958
  Changes in assets and liabilities-
    Increase in trade receivables                          (6,519,721)     (1,659,831)     (3,062,094)
    Increase in notes receivable                           (3,407,616)             --              --
    (Increase) decrease in inventories and supplies          (927,253)        (73,251)         93,764
    (Increase) decrease in prepaid expenses                  (923,466)       (185,349)        428,219
    Increase in other assets                               (3,150,654)       (195,811)       (652,693)
    Increase (decrease) in accounts payable                 2,828,741       1,069,469        (250,046)
    Increase in accrued liabilities and claims accrual      2,399,022       1,218,964         459,965
                                                         ------------    ------------    ------------

       Net cash provided by operating activities           20,009,032      23,606,060      14,283,035
                                                         ------------    ------------    ------------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchases of property and equipment                     (29,326,223)    (23,548,158)    (21,919,774)
                                                         ------------    ------------    ------------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Borrowing (payments) on line of credit, net               1,500,000       2,000,000      (2,000,000)
  Borrowing of debt                                        10,000,000              --         759,200
  Payments of debt                                           (302,543)       (433,511)     (2,294,455)
  Payments of accounts payable - equipment                 (2,753,115)     (2,929,800)     (1,927,726)
  Proceeds from sale of common stock                               --              --      13,690,809
  Proceeds from exercise of stock options                     484,698         573,003          30,000
                                                         ------------    ------------    ------------
         Net cash provided by (used in)
          financing activities                              8,929,040        (790,308)      8,257,828
                                                         ------------    ------------    ------------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS         (388,151)       (732,406)        621,089

CASH AND CASH EQUIVALENTS, beginning of year                  512,339       1,244,745         623,656
                                                         ------------    ------------    ------------

CASH AND CASH EQUIVALENTS, end of year                   $    124,188    $    512,339    $  1,244,745
                                                         ============    ============    ============
SUPPLEMENTAL DISCLOSURES:
 Noncash investing and financing transactions:
   Equipment acquired by accounts payable                $  2,220,780    $  2,753,115    $  2,929,800
   Issuance of common stock to certain
     members of board of directors                             17,499          10,050              --

 Cash Flow Information:
   Income taxes paid                                     $  4,898,131    $  3,945,579    $  2,459,144
   Interest paid                                              372,009          69,161         408,138

                 The accompanying notes are an integral part of
                       these consolidated balance sheets.

                                      -28-

                  KNIGHT TRANSPORTATION, INC. AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                DECEMBER 31, 1998

(1) ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

     NATURE OF BUSINESS

Knight  Transportation,  Inc.  and  subsidiaries  (the  Company)  is a short  to
medium-haul,  truckload carrier of general commodities. The operations are based
in Phoenix,  Arizona,  where the Company has its corporate offices, fuel island,
truck terminal,  dispatching and maintenance services.  During 1996, the Company
expanded  its  operations  by  opening  new   facilities  in  Katy,   Texas  and
Indianapolis,   Indiana.   The   Company   operates   in  one   industry,   road
transportation,   which  is  subject  to   regulation   by  the   Department  of
Transportation and various state regulatory authorities.

The Company continues to develop its owner-operator program. Owner-operators are
independent  contractors  who provide  their own  tractors.  The  Company  views
owner-operators  as  an  alternative  method  of  obtaining  additional  revenue
equipment.  The Company had 231 and 192 owner-operators at December 31, 1998 and
1997,  respectively.  This represents approximately 25% of the Company's tractor
fleet at December 31, 1998 and 1997.

     SIGNIFICANT ACCOUNTING POLICIES

PRINCIPLES OF CONSOLIDATION - The accompanying consolidated financial statements
include the parent  company  Knight  Transportation,  Inc., and its wholly owned
subsidiaries,  Knight Administrative  Services, Inc., Quad-K Leasing, Inc., KTTE
Holdings,  Inc., QKTE Holdings,  Inc., Knight Management Services,  Inc., Knight
Transportation  Midwest,  Inc., KTeCom,  L.L.C., and Knight Transportation South
Central Ltd. Partnership.  All material intercompany items and transactions have
been eliminated in consolidation.

USE OF ESTIMATES - The  preparation of financial  statements in conformity  with
generally accepted  accounting  principles requires management to make estimates
and assumptions  that affect the reported  amounts of assets and liabilities and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.

CASH EQUIVALENTS - The Company considers all highly liquid instruments purchased
with original maturities of three months or less to be cash equivalents.

INVENTORIES AND SUPPLIES - Inventories  and supplies  consist of tires and spare
parts  which  are  stated at the lower of cost,  using the  first-in,  first-out
(FIFO) method, or net realizable value.

                                      -29-

PROPERTY AND EQUIPMENT - Property and equipment are stated at cost. Depreciation
on property and  equipment is calculated  by the  straight-line  method over the
following estimated useful lives:

                                                        YEARS
                                                        -----
                  Land improvements                        5
                  Buildings and improvements           20-30
                  Furniture and fixtures                   5
                  Shop and service equipment            5-10
                  Revenue equipment                      5-7
                  Leasehold improvements                  10

The Company  expenses  repairs and maintenance as incurred.  For the years ended
December  31,  1998,  1997 and 1996,  repairs and  maintenance  expense  totaled
approximately  $3,446,000,  $2,442,000  and  $1,883,000,   respectively  and  is
included in operations and maintenance expense in the accompanying  consolidated
statements of income.

Revenue  equipment is  depreciated  to a salvage  value of 15% for all tractors.
Trailers  are  depreciated  to  salvage  values  of  10%  to  40%.  The  Company
periodically  reviews its estimates  related to useful lives and salvage  values
for revenue equipment.

TIRES - Tires on revenue  equipment  purchased are  capitalized as a part of the
equipment cost and depreciated over the life of the vehicle.  Replacement  tires
and recapping costs are expensed when placed in service.

OTHER ASSETS - Included in other assets for 1998 is an  investment  in a company
with advanced communications  technology which the Company anticipates utilizing
in  1999.  This  investment  has  been  recorded  at a cost  of  $4,000,000  and
represents  approximately a 4.6% ownership  interest at December 31, 1998. There
were no material intercompany  transactions between this communications  company
and Knight during 1998.

REVENUE  RECOGNITION - The Company's  typical customer delivery is completed one
day after pickup. The Company recognizes  operating revenues when the freight is
picked up for  delivery and accrues the  estimated  direct costs to complete the
delivery.  This method of revenue  recognition is not materially  different from
recognizing  revenue  based on completion of delivery as the hauls are primarily
short-term.

INCOME TAXES - The Company uses the asset and liability method of accounting for
income  taxes.  Under the asset and  liability  method of Statement of Financial
Accounting  Standards  No. 109 (SFAS No.  109),  ACCOUNTING  FOR  INCOME  TAXES,
deferred  tax  assets  and   liabilities  are  recognized  for  the  future  tax
consequences   attributable  to  differences  between  the  financial  statement
carrying  amount of existing  assets and  liabilities  and their  respective tax
bases.  Deferred tax assets and liabilities are measured using enacted tax rates
expected  to apply to  taxable  income  in the  years in which  those  temporary
differences  are expected to be  recovered  or settled.  Under SFAS No. 109, the
effect  on  deferred  tax  assets  and  liabilities  of a change in tax rates is
recognized in the period that includes the enactment date.

CONCENTRATION OF CREDIT RISK - Financial  instruments  that potentially  subject
the  Company  to credit  risk  consist  principally  of trade  receivables.  The
Company's  three largest  customers  for each of the years 1998,  1997 and 1996,
represent  15%,  17% and 17% of  operating  revenues,  respectively.  The single
largest  customer's  revenues  represent 6%, 8% and 9% of operating revenues for
the years 1998, 1997 and 1996, respectively.

Notes  receivable  represent  amounts due from independent  contractors  under a
program  whereby the Company  finances  tractor  purchases  for its  independent
contractors. These notes receivable are collateralized by revenue

                                      -30-

equipment and are due in monthly installments, including principal and interest,
over periods generally ranging from three to five years.

RECAPITALIZATION AND STOCK SPLIT

On April 22, 1998,  the  Company's  Board of Directors  approved a three for two
stock  split,  effected in the form of a 50 percent  stock  dividend.  The stock
dividend was paid on May 18, 1998, to  stockholders of record as of the close of
business on May 1, 1998.

This  stock  split  has  been  given  retroactive  recognition  for all  periods
presented  in the  accompanying  consolidated  financial  statements.  All share
amounts and earnings per share have been  retroactively  adjusted to reflect the
stock split.

EARNINGS PER SHARE - In February 1997, the Financial  Accounting Standards Board
(FASB)  issued  Statement of Financial  Accounting  Standards  No. 128 (SFAS No.
128),  EARNINGS PER SHARE,  which supersedes  Accounting  Principles Board (APB)
Opinion No. 15, the previous authoritative  guidance.  SFAS No. 128 modifies the
calculation  of primary and fully diluted  earnings per share (EPS) and replaces
them with  basic and  diluted  EPS.  SFAS No.  128 is  effective  for  financial
statements  for both interim and annual  periods  presented  after  December 15,
1997, and as a result, all prior period EPS data presented has been restated.

A  reconciliation  of the  numerators  (net income) and  denominators  (weighted
average number of shares  outstanding) of the basic and diluted EPS computations
for 1998, 1997 and 1996, is as follows:



                                1998                                1997                                1996
               ----------------------------------- ----------------------------------- -----------------------------------
               Net Income      Shares    Per Share Net Income      Shares    Per Share Net Income      Shares    Per Share
               (numerator) (denominator)  Amount   (numerator) (denominator)  Amount   (numerator) (denominator)  Amount
               ----------- ------------- --------- ----------- ------------- --------- ----------- ------------- ---------
                                                                                      
Basic EPS      $13,346,142  14,968,967    $  .89    $10,251,523   14,875,746  $  .69    $ 7,510,057  14,197,968   $  .53
                                          ======                              ======                              ======
Effect of stock
options                 --     293,898                       --      274,764                     --     179,779
               -----------  ----------              -----------   ----------            -----------  ----------
Diluted EPS    $13,346,142  15,262,865    $  .87    $10,251,523   15,150,510  $  .68    $ 7,510,057  14,377,747   $  .52
               ===========  ==========    ======    ===========   ==========  ======    ===========  ==========   ======


RECENTLY ADOPTED ACCOUNTING  PRONOUNCEMENT - Effective January 1998, the Company
adopted  Statement of  Financial  Accounting  Standards  No. 131 (SFAS No. 131),
DISCLOSURES  ABOUT  SEGMENTS OF AN  ENTERPRISE  AND RELATED  INFORMATION,  which
established  revised  standards for the  reporting of financial and  descriptive
information about operating segments in financial statements.

The  Company  has  determined  that it has  one  reportable  operating  segment.
Although the Company has three operating segments which are managed based on the
regions of the United  States in which each  operates;  each segment has similar
economic  characteristics.  Each regional  operating  segment  provides short to
medium haul truckload carrier services of general commodities to a similar class
of customers.  In addition, each segment exhibits similar financial performance,
including  average  revenue  per mile and  operating  ratio.  As a result of the
foregoing,  the Company has  determined  that it is appropriate to aggregate its
operating  segments into one reportable  segment consistent with the guidance in
SFAS No. 131.  Accordingly,  the Company has not  presented  separate  financial
information  for each of its operating  segments as the  Company's  consolidated
financial statements present its one reportable segment.

                                      -31-

(2) INCOME TAXES:

Income tax expense consists of the following:

                                              1998         1997         1996
                                           ----------   ----------   ----------
         Current income taxes:
           Federal                         $4,464,200   $2,904,400   $2,429,100
           State                            1,217,000      836,473      658,900
                                           ----------   ----------   ----------
                                            5,681,200    3,740,873    3,088,000
                                           ----------   ----------   ----------
         Deferred income taxes:
           Federal                          3,040,700    2,840,200    1,805,300
           State                              654,100      629,927      406,700
                                           ----------   ----------   ----------
                                            3,694,800    3,470,127    2,212,000
                                           ----------   ----------   ----------
             Total income tax expense      $9,376,000   $7,211,000   $5,300,000
                                           ==========   ==========   ==========

The  effective  income  tax rate is  different  than the amount  which  would be
computed  by  applying  statutory  corporate  income tax rates to income  before
income taxes. The differences are summarized as follows:

                                              1998         1997         1996
                                           ----------   ----------   ----------
         Tax at the statutory rate (34%)   $7,725,500   $5,937,300   $4,355,400
         State income taxes, net of
           federal benefit                  1,234,900      967,800      703,300
         Other                                415,600      305,900      241,300
                                           ----------   ----------   ----------

                                           $9,376,000   $7,211,000   $5,300,000
                                           ==========   ==========   ==========

The net effects of temporary  differences that give rise to significant portions
of the deferred tax assets and deferred tax liabilities at December 31, 1998 and
1997, are as follows:

                                                          1998          1997
                                                      -----------   -----------
         Short-term deferred tax assets:
           Claims accrual                             $ 1,549,800   $ 1,383,400
           Other                                        1,190,400       524,400
                                                      -----------   -----------
             Total short-term deferred tax assets     $ 2,740,200   $ 1,907,800
                                                      ===========   ===========

         Long-term deferred tax liabilities:
           Property and equipment depreciation        $16,314,885   $11,904,300
           Prepaid expenses deducted for tax
             purposes                                     697,400       580,785
                                                      -----------   -----------
             Total long-term deferred tax
               liabilities                            $17,012,285   $12,485,085
                                                      ===========   ===========

                                      -32-

(3) LINE OF CREDIT AND LONG-TERM DEBT:

Long-term debt consists of the following at December 31:

                                                         1998           1997
                                                     -----------    -----------
     Note payable to financial institution
     with monthly principal and interest
     payments of $192,558 through October
     2003, the note is unsecured with
     interest at a fixed rate of 5.75%               $ 9,711,628    $        --

     Notes payable, paid in full in 1998                      --         14,171
                                                     -----------    -----------
                                                       9,711,628         14,171
     Less - current portion                           (1,791,981)       (14,171)
                                                     -----------    -----------

                                                     $ 7,919,647    $        --
                                                     ===========    ===========

Long-term debt maturities are as follows:

     1999                                            $ 1,791,981
     2000                                              1,898,018
     2001                                              2,012,945
     2002                                              2,133,484
     2003                                              1,875,200
                                                     -----------
                                                     $ 9,711,628
                                                     ===========

The  Company  has a  $10,000,000  revolving  line of  credit  (see  Note 5) with
principal  due at  maturity,  July 2000,  and  interest  payable  monthly at two
options (prime or LIBOR plus .625%). In management's  opinion,  the Company will
have  sufficient  liquidity  to pay off,  or will be able to renew,  its line of
credit at  maturity.  Borrowings  under the line of credit are limited to 80% of
eligible  accounts  receivable,  as  defined,  and 50% of net fixed  assets,  as
defined and amounted to $3,500,000 at December 31, 1998.

Under the terms of the line of credit,  the  Company  is  required  to  maintain
certain financial ratios.  These ratios include;  total liabilities to net worth
ratio,  current  ratio,  and certain  debt service  ratios.  The Company is also
required to maintain  certain other covenants  relating to corporate  structure,
ownership and management.

(4) COMMITMENTS AND CONTINGENCIES:

     PURCHASE COMMITMENTS

As of December 31, 1998,  the Company had purchase  commitments  for  additional
tractors  and  trailers  with an  estimated  purchase  price,  net of  estimated
trade-in values, of approximately $41 million for delivery throughout 1999.

Although the Company expects to take delivery of this revenue equipment,  delays
in the availability of equipment could occur due to factors beyond the Company's
control. Any future delay or interruption in the availability of equipment could
have a material adverse effect on the Company.

     DISABILITY PLAN

The Company has a  disability  plan for certain of its key  employees.  The plan
provides  disability  benefits  of  $75,000  annually  for  five  years if a key
employee terminates  employment by reason of disability.  The plan is subject to
termination at any time by the Board of Directors.

                                      -33-

     OTHER

The  Company is  involved  in certain  legal  proceedings  arising in the normal
course of  business.  In the  opinion of  management,  the  Company's  potential
exposure  under pending  legal  proceedings  is  adequately  provided for in the
accompanying consolidated financial statements.

(5) CLAIMS ACCRUAL:

The Company acts as a self-insurer  for bodily injury and property damage claims
up to  $100,000  per  occurrence.  The  Company  is  self-insured  for  workers'
compensation  claims  up  to  $250,000  per  occurrence.  The  Company  is  also
self-insured  for loss of revenue  equipment  up to $12,500 per  occurrence  and
cargo  liability  up to $12,500  per  occurrence.  Liability  in excess of these
amounts is covered by a third party underwriter up to $25 million.

The claims accrual  represents  accruals for the estimated  uninsured portion of
pending claims  including  adverse  development of known claims and incurred but
not reported claims.  These estimates are based on historical  information along
with certain assumptions about future events.  Changes in assumptions as well as
changes in actual  experience  could cause these estimates to change in the near
term.  Liabilities in excess of the self insured amounts are  collateralized  by
letters  of  credit  totaling  $992,000.  These  letters  of credit  reduce  the
available borrowings under the Company's line of credit (see Note 3).

(6) RELATED PARTY TRANSACTIONS:

The Company leases  approximately  eight acres and facilities from a shareholder
and officer, (the Shareholder) under a five year lease, with an option to extend
for two additional  five-year terms. The lease terms include base rent of $4,828
per month for the initial  three years of the lease,  and increases of 3% on the
third  anniversary of the commencement  date, the first day of each option term,
and the third  anniversary  of the  commencement  date of each option  term.  In
September  1997,  the lease was  amended to include  additional  acreage and the
monthly payment was increased to approximately  $5,923. In March 1999, the first
renewal  option will be  exercised  and the  monthly  payment  will  increase to
$6,100.  In addition  to base rent,  the lease  requires  the Company to pay its
share of all expenses,  utilities, taxes and other charges. Rent expense paid to
the Shareholder was approximately $75,000, $60,200 and $59,000 during 1998, 1997
and 1996, respectively.

The Company paid approximately  $90,000,  $80,000 and $80,000 for certain of its
key employees' life insurance premiums during 1998, 1997 and 1996, respectively.
A portion of the premiums paid are included in other assets in the  accompanying
consolidated  balance  sheets.  The life  insurance  policies  provide  for cash
distributions to the  beneficiaries of the  policyholders  upon death of the key
employee.  The Company is entitled  to receive  the total  premiums  paid on the
policies at distribution prior to any beneficiary distributions.

The Company  provided  maintenance  and  shipping  for Total  Warehousing,  Inc.
(Total),  a company  owned by a  shareholder  of the Company,  of  approximately
$16,000 for the year ended  December 31, 1996. No services were provided  during
1998 or 1997. Total provided general warehousing  services to the Company in the
amount of approximately $9,000, $11,000 and $14,000 for the years ended December
31, 1998, 1997 and 1996, respectively.

(7) SHAREHOLDERS' EQUITY:

The Company's  authorized  capital stock consists of 100,000,000  shares of $.01
par value common stock;  14,981,482 and  14,924,422  shares of common stock were
issued and outstanding at December 31, 1998 and 1997, respectively. In addition,
the Company has authorized  50,000,000 shares of $.01 par value preferred stock,
none of which was outstanding at December 31, 1998 or 1997.

                                      -34-

In July 1996, the Company issued  1,200,000 shares of common stock at $12.33 per
share (the Offering). The Offering consisted of 2,400,000 shares of common stock
comprised of 1,200,000  newly-issued  Company  shares and 1,200,000  shares from
existing shareholders.

During 1997,  all Board of Director  members  received  their  director  fees of
$2,500  through the issuance of common stock in equivalent  shares to each board
member.  The Company issued a total of 594 shares of common stock during 1997 to
certain directors.

During 1998,  all Board of Director  members  received  their  director  fees of
$5,000  through the issuance of common stock in equivalent  shares to each board
member.  The Company issued a total of 960 shares of common stock during 1998 to
certain directors.

(8) EMPLOYEE BENEFIT PLANS:

     1994 STOCK OPTION PLAN

The Company  established  the 1994 Stock  Option  Plan (1994 Plan) with  975,000
shares of common stock reserved for issuance  thereunder.  In February 1998, the
1994 Plan was amended and restated to increase the number of shares reserved for
issuance to  1,500,000.  The 1994 Plan will  terminate on August 31,  2004.  The
Compensation  Committee of the Board of Directors  administers the 1994 Plan and
has  the  discretion  to  determine  the  employees,  officers  and  independent
directors who receive awards,  the type of awards to be granted (incentive stock
options,  nonqualified  stock options and restricted stock grants) and the term,
vesting and exercise price.  Incentive stock options are designed to comply with
the  applicable  provisions  of the  Internal  Revenue  Code (the  Code) and are
subject to  restrictions  contained in the Code,  including a  requirement  that
exercise  prices  are  equal to at least  100% of the fair  market  value of the
common shares on the grant date and a ten-year restriction on the option term.

Independent  directors are not  permitted to receive  incentive  stock  options.
Non-qualified stock options may be granted to directors,  including  independent
directors,  officers, and employees and provide for the right to purchase common
stock at a  specified  price,  which may not be less than 85% of the fair market
value on the date of grant, and usually become exercisable in installments after
the grant date.  Non-qualified  stock options may be granted for any  reasonable
term. The 1994 Plan provides that each independent  director may receive, on the
date of  appointment to the Board of Directors,  non-qualified  stock options to
purchase not less than 2,500 nor more than 5,000 shares of common  stock,  at an
exercise price equal to the fair market value of the common stock on the date of
the grant.

As permitted under Statement of Financial Accounting Standards No. 123 (SFAS No.
123),  ACCOUNTING  FOR  STOCK-BASED  COMPENSATION,  the  Company  has elected to
account for stock  transactions  with  employees and  directors  pursuant to the
provisions  of APB No.  25,  ACCOUNTING  FOR  STOCK  ISSUED  TO  EMPLOYEES.  Had
compensation cost for the 1994 Plan been recorded  consistent with SFAS No. 123,
the  Company's  net  income  and EPS  amounts  would  have been  reduced  to the
following pro forma amounts for the years ended December 31:

                                         1998          1997          1996
                                      -----------   -----------   ----------
        Net income:
          As reported                 $13,346,142   $10,251,523   $7,510,057
          Pro forma                    13,060,131    10,052,945    7,338,132
        Earnings per share:
          As reported - Diluted EPS   $       .87   $       .68   $      .52
          Pro forma - Diluted EPS             .86           .66          .51

                                      -35-

The fair value of each option  grant is estimated on the date of grant using the
Black-Scholes   option  pricing  model  with  the  following   weighted  average
assumptions used for grants in 1996; risk free interest rate of 6.73%,  expected
life of six years,  expected  volatility of 36%, expected dividend rate of zero,
and expected  forfeitures of 0%. The following weighted average assumptions were
used for grants in 1997; risk free interest rate of 5.77%,  expected life of six
years,  expected volatility of 42%, expected dividend rate of zero, and expected
forfeitures of 15.68%. The following weighted average  assumptions were used for
grants in 1998;  risk free interest  rate of 5.75%,  expected life of six years,
expected  volatility  of 45%,  expected  dividend  rate of  zero,  and  expected
forfeitures of 23.36%.

Because SFAS No. 123 has not been applied to options granted prior to January 1,
1995, the pro forma  compensation cost disclosed above may not be representative
of that had such options been considered.



                                            1998                1997                1996
                                     -----------------  -----------------  -----------------
                                              Weighted           Weighted           Weighted
                                               Average            Average            Average
                                              Exercise           Exercise           Exercise
                                     Options    Price   Options    Price   Options    Price
                                     -------    -----   -------    -----   -------    -----
                                                                   
Outstanding at beginning of year     791,396   $11.25   540,000   $ 8.51   393,375   $ 8.04
  Granted                             39,750    18.58   380,325    14.38   208,875     9.32
  Exercised                          (56,100)    8.47   (67,078)    8.53    (3,750)    8.00
  Forfeited                          (70,896)   13.49   (61,851)    9.43   (58,500)    8.32
                                     -------   ------   -------   ------   -------   ------
Outstanding at end of year           704,150   $11.69   791,396   $11.25   540,000   $ 8.51
                                     =======   ======   =======   ======   =======   ======
Exercisable at end of year           129,129   $ 8.20    71,834   $ 8.06    11,250   $ 8.38
                                     =======   ======   =======   ======   =======   ======
Weighted average fair value of
  options granted during the period  $  9.65            $  7.08            $  4.43
                                     =======            =======            =======


Options outstanding at December 31, 1998, have exercise prices between $8.00 and
$21.33.  There are 345,050 options outstanding with exercise prices ranging from
$8.00 to $9.25  with  weighted  average  exercise  prices of $8.43 and  weighted
average  remaining  contractual  lives of 6.39 years.  There are 359,100 options
outstanding  with  exercise  prices  ranging from $9.26 to $21.33 with  weighted
average exercise prices of $14.80 and weighted average contractual lives of 8.92
years.

     401(K) PROFIT SHARING PLAN

The Company has a 401(k)  profit  sharing plan (the Plan) for all  employees who
are 19 years of age or older and have  completed  one year of  service  with the
Company.  The Plan,  as  amended  in 1995,  provides  for a  mandatory  matching
contribution  equal to 50% of the amount of the employee's  salary deduction not
to exceed $625 annually per employee. The Plan also provides for a discretionary
matching  contribution.  In 1998,  1997 and 1996,  there  were no  discretionary
contributions. Employees' rights to employer contributions vest after five years
from their date of employment. The Company's matching contribution,  included in
accrued  liabilities  in  the  accompanying  consolidated  balance  sheets,  was
approximately   $125,000,   $93,000  and  $69,000  for  1998,   1997  and  1996,
respectively.

                                      -36-



                                   EXHIBITS TO

                           KNIGHT TRANSPORTATION, INC.

                                    FORM 10-K

                            FOR THE FISCAL YEAR ENDED
                                DECEMBER 31, 1998








                                      -37-

                              KNIGHT EXHIBIT INDEX

EXHIBIT
NUMBER                            DESCRIPTION
- ------                            -----------
3.1      Restated  Articles of  Incorporation  of the Company.  (Incorporated by
         reference  to Exhibit 3.1 to the  Company's  Registration  Statement on
         Form S-1 No. 33-83534.)

3.2      Amended and Restated Bylaws of the Company  (Incorporated  by reference
         to  Exhibit  3.2 to the  Company's  report on Form 10-K for the  period
         ending December 31, 1996).

4.1      Articles 4, 10 and 11 of the Restated  Articles of Incorporation of the
         Company.  (Incorporated  by  reference to Exhibit 3.1 to this Report on
         Form 10-K.)

4.2      Sections 2 and 5 of the Amended  and  Restated  Bylaws of the  Company.
         (Incorporated by reference to Exhibit 3.2 to this Report on Form 10-K.)

10.1     Purchase and Sale Agreement and Escrow Instructions (All Cash) dated as
         of March 1, 1994, between Randy Knight, the Company,  and Lawyers Title
         of Arizona. (Incorporated by reference to Exhibit 10.1 to the Company's
         Registration Statement on Form S-1 No. 33-83534.)

10.1.1   Assignment  and First  Amendment  to Purchase  and Sale  Agreement  and
         Escrow  Instructions.  (Incorporated  by reference to Exhibit 10.1.1 to
         Amendment No. 3 to the Company's Registration Statement on Form S-1 No.
         33-83534.)

10.1.2   Second   Amendment   to  Purchase   and  Sale   Agreement   and  Escrow
         Instructions. (Incorporated by reference to Exhibit 10.1.2 to Amendment
         No.  3  to  the  Company's  Registration  Statement  on  Form  S-1  No.
         33-83534.)

10.2     Net Lease and Joint Use Agreement  between Randy Knight and the Company
         dated as of March 1, 1994.  (Incorporated  by reference to Exhibit 10.2
         to the Company's Registration Statement on Form S-1 No. 33-83534.)

10.2.1   Assignment  and First  Amendment  to Net  Lease  and Joint Use  Payment
         between L. Randy  Knight,  Trustee  of the R. K. Trust  dated  April 1,
         1993, and Knight  Transportation,  Inc. and certain other parties dated
         March 11, 1994 (assigning the lessor's interest to the R. K. Trust).

10.2.2   Second Amendment to Net Lease and Joint Use Agreement  between L. Randy
         Knight,  as Trustee of the R. K. Trust  dated  April 1, 1993 and Knight
         Transportation, Inc., dated as of September 1, 1997.

10.3     Form of Purchase and Sale Agreement and Escrow  Instructions (All Cash)
         dated as of October  1994,  between the Company and Knight Deer Valley,
         L.L.C.,  an  Arizona  limited  liability   company.   (Incorporated  by
         reference  to  Exhibit  10.4.1  to  Amendment  No.  3 to the  Company's
         Registration Statement on Form S-1 No. 33-83534.)

10.4     Loan  Agreement and Revolving  Promissory  Note each dated March,  1996
         between   First   Interstate   Bank  of   Arizona,   N.A.   and  Knight
         Transportation, Inc. and Quad K Leasing, Inc. (superseding prior credit
         facilities) (Incorporated by reference to Exhibit 10.4 to the Company's
         report on Form 10-K for the period ending December 31, 1996).

                                      -38-

EXHIBIT
NUMBER                            DESCRIPTION
- ------                            -----------

10.4.1   Modification  Agreement between Wells Fargo Bank, N.A., as successor by
         merger to First  Interstate Bank of Arizona,  N.A., and the Company and
         Quad-K  Leasing,  Inc.  dated  as of May  15,  1997.  (Incorporated  by
         reference to Exhibit 4.1 to the  Company's  report on Form 10-K for the
         period ending December 31, 1997.)

10.4.2*  Loan  Agreement and  Revolving  Line of Credit Note each dated July 14,
         1998,  between Wells Fargo Bank, N.A. and Knight  Transportation,  Inc.
         (superseding prior credit facilities)

10.4.3*  Term Note dated  October 1, 1998,  between  Wells Fargo Bank,  N.A. and
         Knight Transportation, Inc.

10.5     Amended and Restated  Knight  Transportation,  Inc.  Stock Option Plan,
         dated as of February 10, 1998.  (Incorporated by reference to Exhibit 1
         to the Company's Notice and Information Statement on Schedule 14(c) for
         the period ending December 31, 1997.)

10.6     Amended  Indemnification  Agreements  between the  Company,  Don Bliss,
         Clark A. Jenkins,  Gary J. Knight, Keith Knight, Kevin P. Knight, Randy
         Knight,  G.D. Madden,  Minor Perkins and Keith Turley,  and dated as of
         February 5, 1997  (Incorporated  by  reference  to Exhibit  10.6 to the
         Company's report on Form 10-K for the period ending December 31, 1996).

10.7     Master  Equipment Lease Agreement dated as of January 1, 1996,  between
         the Company and Quad-K  Leasing,  Inc.  (Incorporated  by  reference to
         Exhibit 10.7 to the Company's  report on Form 10-K for the period ended
         December 31, 1995.)

10.8     Purchase  Agreement and Escrow  Instructions dated as of July 13, 1995,
         between the Company,  Swift  Transportation  Co., Inc. and United Title
         Agency of Arizona.  (Incorporated  by  reference to Exhibit 10.8 to the
         Company's report on Form 10-K for the period ended December 31, 1995.)

10.8.1   First  Amendment  to  Purchase   Agreement  and  Escrow   Instructions.
         (Incorporated by reference to Exhibit 10.8.1 to the Company's report on
         Form 10-K for the period ended December 31, 1995.)

10.9     Purchase and Sale Agreement dated as of February 13, 1996,  between the
         Company and RR-1  Limited  Partnership.  (Incorporated  by reference to
         Exhibit 10.9 to the Company's  report on Form 10-K for the period ended
         December 31, 1995.)

10.10    Asset  Purchase  Agreement  dated March 13,  1999,  by and among Knight
         Transportation,  Inc., Knight Acquisition Corporation,  Action Delivery
         Service,  Inc.  Action  Warehouse  Services,  Inc.  and Bobby R. Ellis,
         (Incorporated  by reference to Exhibit 2.1 to the  Company's  report on
         Form 8-K filed with the Securities and Exchange Commission on March 25,
         1999.)

21.1     Subsidiaries of the Company. (Incorporated by reference to Exhibit 21.1
         to the Company's report on Form 10-K for the period ending December 31,
         1995.)

23*      Consent of Arthur Andersen LLP

27*      Financial Data Schedule

- ------------
* Filed herewith.

                                      -39-