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O'Reilly Automotive, Inc., Reports Fourth Quarter and Annual Earnings

SPRINGFIELD, Mo.--Feb. 28, 2006--O'Reilly Automotive, Inc. ("O'Reilly" or "the Company") today announced record revenues and earnings for the fourth quarter and year ended December 31, 2005, representing 13 consecutive years of record revenues and earnings and positive comparable store product sales increases for O'Reilly since becoming a public company in April 1993.

Income before the cumulative effect of accounting change for the year ended December 31, 2005, totaled $164.3 million, up 39.6% from $117.7 million for the same period a year ago. Diluted earnings per common share, before the cumulative effect of accounting change, for the year ended December 31, 2005, increased 38.1% to $1.45 on 113.4 million shares versus $1.05 a year ago on 111.4 million shares. This improvement includes a benefit of $0.05 per share from the favorable resolution of prior tax uncertainties in the third quarter of 2005 and an adverse impact of $0.01 per share for the fourth quarter 2005 charge for the acceleration of stock options. Diluted earnings per common share in 2004 included an adverse impact of $0.04 per share for lease accounting corrections related to prior years. On an adjusted basis excluding the third quarter 2005 tax resolution benefit, the fourth quarter 2005 stock option acceleration charge and the fourth quarter 2004 lease accounting correction, diluted earnings per common share, before the cumulative effect of accounting change, increased 29.4% from $1.09 for the year ended December 31, 2004 to $1.41 for the year ended December 31, 2005.

Product sales for the year ended December 31, 2005, totaled $2.05 billion, up 18.8% from $1.72 billion for the year ended December 31, 2004. Gross profit for the year ended December 31, 2005, increased to $892.5 million (or 43.6% of product sales) from $743.2 million (or 43.2% of product sales) for the year ended December 31, 2004, representing an increase of 20.1%. Operating, selling, general and administrative ("OSG&A") expenses for the year ended December 31, 2005, increased to $640.0 million (or 31.3% of product sales) from $552.7 million (or 32.1% of product sales) for the year ended December 31, 2004, representing an increase of 15.8%. The reduction in the effective tax rate from 37.3% for the year ended December 31, 2004 to 34.6% for the year ended December 31, 2005, reflects a one-time benefit of $6.1 million from the favorable resolution of prior tax uncertainties in the third quarter of 2005.

Net income for the fourth quarter ended December 31, 2005, totaled $39.5 million, up 79.5% from $22.0 million for the same period in 2004. Diluted earnings per common share for the fourth quarter of 2005 increased 75.0% to $0.35 on 114.0 million shares compared to $0.20 for the fourth quarter of 2004 on 111.9 million shares. This improvement includes the adverse impact of $0.01 per share for the fourth quarter 2005 charge for the acceleration of stock options. Diluted earnings per common share for the three months ended December 31, 2004 included an adverse impact of $0.05 per share for lease accounting corrections related to prior periods. On an adjusted basis excluding the fourth quarter 2005 stock option acceleration charge and the fourth quarter 2004 lease accounting correction, diluted earnings per common share increased 44.0% from $0.25 for the quarter ended December 31, 2004 to $0.36 for the quarter ended December 31, 2005.

Product sales for the fourth quarter ended December 31, 2005, totaled $515.0 million, up 20.4% from $427.6 million for the same period a year ago. Gross profit for the fourth quarter ended December 31, 2005, increased to $231.4 million (or 44.9% of product sales) from $186.0 million (or 43.5% of product sales) for the same period a year ago, representing an increase of 24.5%. OSG&A expenses for the fourth quarter of 2005 increased to $168.2 million (or 32.7% of product sales) from $149.9 million (or 35.1% of product sales) for the same period a year ago, representing an increase of 12.2%.

Comparable store product sales for stores open at least one year increased 7.4% and 7.5% for the fourth quarter and year ending December 31, 2005, respectively, representing 51 quarters of comparable store product sales increases since O'Reilly became a public company in April 1993.

"We are pleased with the strong results this quarter and for the full year 2005," stated Greg Henslee, CEO and Co-President. "We are proud of the continued hard work and dedication of Team O'Reilly that enabled us to achieve comparable store sales growth of 7.5% while also improving our operating margin to 12.3%. This performance is the direct result of our team's commitment to providing the best possible service and selection for the professional installer and the do-it-yourself customer."

Ted Wise, COO and Co-President, stated, "In the fourth quarter of 2005, we opened 38 new stores and continued our successful integration of Midwest Auto Parts. We expect to add 170 to 175 new stores in 2006 as well as a new distribution center in Indianapolis, Indiana that will support our expansion in this region."

O'Reilly Automotive, Inc. is one of the largest specialty retailers of automotive aftermarket parts, tools, supplies, equipment and accessories in the United States, serving both the do-it-yourself and professional installer markets. Founded in 1957 by the O'Reilly family, the Company operated 1,470 stores within the states of Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, North Carolina, North Dakota, Oklahoma, South Carolina, South Dakota, Tennessee, Texas, Virginia, Wisconsin and Wyoming as of December 31, 2005.

              O'REILLY AUTOMOTIVE, INC. AND SUBSIDIARIES
                 CONDENSED CONSOLIDATED BALANCE SHEETS
                 (In thousands, except per share data)

                                        December 31,    December 31,
                                           2005             2004
                                      ---------------  ---------------
                                        (Unaudited)        (Note)
Assets
Current assets:
   Cash and cash equivalents                 $31,384          $69,028
   Accounts receivable, net                   73,849           60,928
   Amounts receivable from vendors,
    net                                       57,224           52,976
   Inventory                                 726,390          625,320
   Other current assets                       21,808            5,225
                                      ---------------  ---------------
         Total current assets                910,655          813,477

Property and equipment, at cost              992,899          791,794
Accumulated depreciation and
 amortization                                274,533          224,301
                                      ---------------  ---------------
         Net property and equipment          718,366          567,493

Notes receivable, less current portion        24,051           21,690
Other assets, net                             60,827           29,697
                                      ---------------  ---------------
Total assets                              $1,713,899       $1,432,357
                                      ===============  ===============

Liabilities and shareholders' equity
Current liabilities:
   Income taxes payable                          $--           $9,736
   Accounts payable                          292,667          240,548
   Self insurance reserve                     34,797           25,174
   Accrued payroll                            19,356           15,130
   Accrued benefits and withholdings          14,997           10,620
   Deferred income taxes                       2,451            7,198
   Other current liabilities                  46,100           24,817
   Current portion of long-term debt          75,313              592
                                      ---------------  ---------------
          Total current liabilities          485,681          333,815

Long-term debt, less current portion          25,461          100,322
Deferred income taxes                         42,516           38,440
Other liabilities                             14,472           11,963

Shareholders' equity:
   Common stock, $0.01 par value:
      Authorized shares - 245,000,000
      Issued and outstanding shares -
       112,389,002 at
        December 31, 2005, and
        55,377,130 at December 31,
         2004                                  1,124              554
   Additional paid-in capital                360,325          326,650
   Retained earnings                         784,320          620,613
                                      ---------------  ---------------
Total shareholders' equity                 1,145,769          947,817
                                      ---------------  ---------------
Total liabilities and shareholders'
 equity                                   $1,713,899       $1,432,357
                                      ===============  ===============

Note: The balance sheet at December 31, 2004, has been derived from
the audited consolidated financial statements at that date, but does
not include all of the information and footnotes required by
accounting principles generally accepted in the United States for
complete financial statements.
              O'REILLY AUTOMOTIVE, INC. AND SUBSIDIARIES
              CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                 (In thousands, except per share data)

                        Three Months Ended         Year Ended
                           December 31,            December 31,
                         2005       2004        2005         2004
                      ----------  ---------   ---------    ---------
                     (Unaudited) (Unaudited) (Unaudited)    (Note)

Product sales         $ 514,964  $ 427,618    $2,045,318   $1,721,241
Cost of goods sold,
including warehouse
and distribution
 expenses               283,516    241,650     1,152,815      978,076
                      ---------  ---------    ----------   ----------
Gross profit            231,448    185,968       892,503      743,165
Operating, selling,
general and
administrative
 expenses               168,217    149,909       639,979      552,707
                      ---------  ---------    ----------   ----------
Operating income         63,231     36,059       252,524      190,458
Other expense, net         (421)    (1,046)       (1,455)      (2,721)
                      ---------  ---------    ----------   ----------
Income before income
taxes and cumulative
effect of
 accounting change       62,810     35,013       251,069      187,737
Provision for
 income taxes            23,303     13,006        86,803       70,063
                      ---------  ---------    ----------   ----------
Income before
cumulative effect of
 accounting change       39,507     22,007       164,266      117,674

Cumulative effect of
accounting change,
 net of tax                  --         --            --       21,892
                      ---------  ---------    ----------   ----------
Net income             $ 39,507   $ 22,007     $ 164,266    $ 139,566
                      =========  =========    ==========   ==========
Net income per
 common share:(1)
Income before cumulative
effect of
 accounting change     $   0.35  $    0.20     $    1.47    $    1.07
Cumulative effect of
accounting change,
 net of tax                  --         --            --         0.20
                      ---------  ---------    ----------   ----------
Net income             $   0.35  $    0.20     $    1.47    $    1.27
                      =========  =========    ==========   ==========
Net income per common
share - assuming
dilution:(1)
Income before cumulative
effect of
 accounting change     $   0.35  $    0.20     $    1.45    $    1.05
Cumulative effect of
accounting change,
 net of tax                  --         --            --         0.20
                      ---------  ---------    ----------   ----------
Net income             $   0.35  $    0.20     $    1.45    $    1.25
                      =========  =========    ==========   ==========
Weighted average
common shares
 outstanding(1)         112,176    110,535       111,613      110,020
                      =========  =========    ==========   ==========
Adjusted weighted
average common shares
outstanding - assuming
 dilution(1)            114,041    111,925       113,385      111,423
                      =========  =========    ==========   ==========


(1) On June 15, 2005, the Company completed a two-for-one split of its
    common stock. All share and per share amounts for the periods
    presented have been adjusted to reflect the effect of the stock
    split.

Note: The income statement for the year ended December 31, 2004, has
been derived from the audited consolidated financial statements but
does not include all of the information and footnotes required by
accounting principles generally accepted in the United States for
complete financial statements.

              O'REILLY AUTOMOTIVE, INC. AND SUBSIDIARIES
                    SELECTED FINANCIAL INFORMATION
                              (Unaudited)

                                           December 31,
                                    2005                  2004
                                    ----                  ----
Inventory turnover (1)               1.7                   1.7
Inventory turnover,
 net of payables (2)                 2.8                   2.6

AP to Inventory (3)                  40.3%                38.5%
Debt-to-capital (4)                   8.1%                 9.6%
Return on equity (5)                 15.2%                14.1%
Return on assets (6)                 10.1%                 9.4%

                               Three Months Ended      Year Ended
                                   December 31,        December 31,
                                 2005       2004     2005       2004
Other Information                ----       ----     ----       ----
(in thousands):
 Capital Expenditures          $ 55,558  $ 47,266  $205,159  $ 173,486
 Depreciation and
 Amortization(7)               $ 14,988  $ 19,249  $ 57,228  $  54,325
 Interest Expense              $  1,462  $    863  $  5,062  $   4,700
 Lease and Rental Expense(8)   $ 11,968  $ 14,026  $ 44,243  $  40,170

Sales per weighted-average
 square foot(9)                $  51.77  $  51.31  $ 220.24  $  217.13

Sales per weighted-average
 store (in thousands)(10)      $    345  $    342  $  1,478  $   1,443
Square footage (in thousands)                         9,801      8,318

Store count:
 New stores, net (year ended)                           221        140
 Total stores                                         1,470      1,249

Total employment                                     19,614     17,410

(1) Calculated as cost of sales for the last 12 months divided by
    average inventory. Average inventory is calculated as the simple
    average of beginning and ending inventory for the same period used
    in determining the numerator.

(2) Calculated as cost of sales for the last 12 months divided by
    average inventory less accounts payable. Average inventory is
    calculated as the simple average of beginning and ending inventory
    for the same period used in determining the numerator.

(3) Accounts payable divided by inventory.

(4) The sum of long-term debt and current portion of long-term debt,
    divided by the sum of long-term debt, current portion of long-term
    debt and total shareholders' equity.

(5) Last 12 months net income, before cumulative effect of accounting
    change, lease accounting correction, tax benefit and charge for
    stock option acceleration, divided by average shareholders'
    equity. Due to the one-time nature of the lease accounting
    correction, tax benefit and charge for stock option acceleration,
    these adjustments are made to provide comparable results. Average
    shareholders' equity is calculated by taking a simple average of
    the beginning and ending shareholders' equity for the same period
    used in determining the numerator.

(6) Last 12 months net income, before cumulative effect of accounting
    change, lease accounting correction, tax benefit and charge for
    stock option acceleration, divided by average total assets. Due to
    the one-time nature of the lease accounting correction, tax
    benefit and charge for stock option acceleration, these
    adjustments are made to provide comparable results. Average total
    assets is calculated by taking a simple average of the beginning
    and ending total assets for the same period used in determining
    the numerator.

(7) Depreciation and amortization for the three months and year ended
    December 31, 2004 includes the fourth quarter lease accounting
    correction of $6.0 million.

(8) Lease and rental expense for the three months and year ended
    December 31, 2004 includes the fourth quarter lease accounting
    correction of $4.4 million.

(9) Total sales less jobber sales, divided by weighted-average square
    feet. Weighted-average sales per square foot is weighted to
    consider the approximate dates of store openings or expansions.

(10) Total sales less jobber sales, divided by weighted-average
    stores. Weighted-average sales per store is weighted to consider
    the approximate dates of store openings or expansions.

              O'REILLY AUTOMOTIVE, INC. AND SUBSIDIARIES
           RECONCILIATION OF NON-GAAP FINANCIAL MEASURES TO
                       COMPARABLE GAAP MEASURES
                              (Unaudited)

                               Three Months Ended      Year Ended
                                   December 31,       December 31,
                               ------------------- -------------------
                                 2005      2004      2005      2004
                               --------- --------- --------- ---------
Income before cumulative effect
 of accounting
     change and non-GAAP
      adjustments              $ 40,862  $ 27,947  $159,564  $121,990

Adjustments, net of tax:
     Lease accounting
      correction                     --    (5,940)       --    (4,316)
     Charge for acceleration of
      stock options              (1,355)       --    (1,355)       --
     Favorable resolution of
      tax uncertainties              --        --     6,057        --
                               --------- --------- --------- ---------

Income before cumulative effect
 of accounting
     Change                      39,507    22,007   164,266   117,674
Cumulative effect of accounting
 change,
     net of tax                      --        --        --    21,892
                               --------- --------- --------- ---------

Net income                     $ 39,507  $ 22,007  $164,266  $139,566
                               ========= ========= ========= =========

Net income per common share -
 assuming dilution (1)
Income before cumulative effect
 of accounting
     change and non-GAAP
      adjustments              $   0.36  $   0.25  $   1.41  $   1.09

Adjustments, net of tax:
     Lease accounting
      correction                     --     (0.05)       --     (0.04)
     Charge for acceleration of
      stock options               (0.01)       --     (0.01)       --
     Favorable resolution of
      tax uncertainties              --        --      0.05        --
                               --------- --------- --------- ---------

Income before cumulative effect
 of accounting
     change                        0.35      0.20      1.45      1.05
Cumulative effect of accounting
 change,
     net of tax                      --        --        --      0.20
                               --------- --------- --------- ---------

Net income                     $   0.35  $   0.20  $   1.45  $   1.25
                               ========= ========= ========= =========

Adjusted weighted-average
 common shares
     outstanding - assuming
      dilution (1)              114,041   111,925   113,385   111,423
                               ========= ========= ========= =========