EXHIBIT 99.1

         Jack in the Box Inc. Reports Second Quarter Results;
 Raises Fiscal 2006 Earnings Forecast and Provides Guidance for Third Quarter

    SAN DIEGO--(BUSINESS WIRE)--May 16, 2006--Jack in the Box Inc.
(NYSE:JBX) today reported that net earnings totaled $21.8 million, or
61 cents per diluted share, in the second quarter ended April 16,
2006, compared with $20.7 million, or 55 cents per diluted share, in
the same quarter a year ago. As required by Statement of Financial
Accounting Standards No. 123R ("SFAS 123R"), fiscal 2006 results
include the effect of expensing stock options, while fiscal 2005
results did not include the effect of expensing of stock options. Year
to date, net earnings totaled $47.0 million, or $1.31 per diluted
share, compared with $46.1 million, or $1.23 per diluted share, for
the first half of fiscal 2005.
    "Our restaurants continue to benefit from our holistic approach to
reinvent the Jack in the Box(R) brand, especially in the areas of menu
innovation and service," said Linda A. Lang, chairman and chief
executive officer. "We're doing a better job of meeting the
expectations of our core customers and are attracting new customers to
our restaurants, which we attribute to the addition of high-quality
products, like our line of entree salads and ciabatta burgers and
sandwiches."
    The following table shows a 17 percent increase in comparable
second-quarter diluted EPS, adjusting for the pro forma effect of
stock option expense in the second quarter of fiscal 2005:

                                              Second        Second
                                              Quarter       Quarter
                                            Fiscal 2006   Fiscal 2005
                                           ------------- -------------
Diluted EPS                                       $0.61         $0.55
Comparable adjustments:
  Effect of stock options if expensed in
   FY 2005(1)                                         -         (0.03)
                                           ------------- -------------
Comparable diluted EPS                            $0.61         $0.52
                                           ============= =============

(1) Included in SG&A expense in the company's unaudited consolidated
    statements of earnings commencing with the adoption of SFAS 123R
    in the first quarter of fiscal 2006.

    Second quarter financial highlights

    Earnings per diluted share were higher than the company's guidance
of 57-59 cents per diluted share and analysts' First Call consensus
estimate of 58 cents, due primarily to higher restaurant operating
margin, Jack in the Box same-store sales increases at the high end of
the range forecast, and slightly lower stock option expense, partially
offset by higher pension and incentive compensation expense.
    Same-store sales at Jack in the Box company restaurants increased
4.0 percent in the second quarter, with an increase in both average
check and transactions, on top of a 3.1 percent increase in the second
quarter of 2005. Year to date, Jack in the Box same-store sales
increased 4.9 percent on top of a 2.6 percent increase for the same
period in 2005. For the second quarter, system same-store sales at
Qdoba Mexican Grill(R) increased 5.6 percent on top of a 14.6 percent
increase in the second quarter of 2005. Year to date, system
same-store sales at Qdoba increased 6.8 percent on top of a 13.5
percent increase for the same period last year. Qdoba, which has
experienced 27 consecutive quarters of positive comparable sales
growth, continued to be accretive to earnings for the quarter.
    Restaurant operating margin was 17.6 percent of sales in the
second quarter compared with 17.2 percent forecast and 17.1 percent a
year ago, with the improvement versus 2005 due primarily to lower
commodity costs - principally pork, cheese and beef - as well as
improved labor management, Profit Improvement Program initiatives and
fixed-cost leverage on same-store sales growth, partially offset by
higher utility costs.
    SG&A expense rate, including an approximate 20-basis-point
increase from the expensing of stock options, was 11.0 percent of
revenues in the second quarter compared with 11.1 percent in 2005,
which did not include stock option expense.
    Five company and franchised Jack in the Box restaurants opened in
the second quarter, along with 1 new Quick Stuff(R) convenience store,
compared with 7-9 restaurants forecast and 12 restaurants, including 3
Quick Stuff sites, opened in the same quarter a year ago. The variance
versus guidance is due primarily to construction delays, which are
causing a higher number of restaurant openings to occur later in
fiscal 2006 than originally forecast. Qdoba opened 13 company and
franchised restaurants during the second quarter, as forecast,
compared with 18 locations opened in the same quarter a year ago. At
April 16, the company's system total was composed of 2,055 company and
franchised Jack in the Box restaurants, including 47 with Quick Stuff
convenience stores, and 285 company and franchised Qdoba restaurants.
    Other revenues totaled $9.1 million in the second quarter,
primarily from the sale of 13 Jack in the Box company restaurants to
franchisees, compared with approximately $7.5 million a year ago, also
primarily from the sale of 13 such restaurants to franchisees. The
increase in average gains this year related to the specific sales and
cash flows of restaurants sold.
    The effective tax rate for the quarter was 37.0 percent, as
forecast, versus 35.9 percent a year ago.
    Capital expenditures, including capital lease obligations, were
$22.2 million for the second quarter compared with $25-30 million
forecast and $19.7 million in fiscal 2005.

    Second quarter initiatives

    The company continued to effectively execute its strategy to
reinvent the Jack in the Box brand by focusing on menu innovation,
upgrading service execution and re-imaging the restaurant facilities:

    --  On menu innovation, Jack in the Box introduced two premium
        sandwiches in the second quarter: the Sourdough Ultimate
        Cheeseburger and the Chipotle Chicken Ciabatta Sandwich. The
        Sourdough Ultimate Cheeseburger features two jumbo beef
        patties topped with mayo-onion sauce, mustard, ketchup, and
        American and Swiss-style cheese - all served on the chain's
        signature sourdough bread. The Chipotle Chicken Sandwich
        features a choice of grilled or spicy crispy chicken with
        green leaf lettuce, sliced tomatoes, bacon and real cheddar
        cheese topped with a smoky chipotle sauce on the chain's
        signature hearth-baked ciabatta bread. Jack in the Box also
        added an Orange & Cream Shake to its lineup of real ice cream
        shakes.

    --  On upgrading service execution, the company continues to build
        upon several initiatives rolled out during the past two years.
        These include new training and tools to increase engagement
        among restaurant team members, as well as new internal-service
        programs to attract and retain high-caliber employees. One
        such initiative, an innovative healthcare program that Jack in
        the Box introduced to all part-time restaurant employees in
        2004, earned a 2006 Apex Award from UnitedHealth Group's hub
        magazine. Jack in the Box was recognized in the magazine's May
        2006 issue as the first major quick-serve hamburger chain to
        offer its restaurant employees access to affordable
        healthcare, including vision and dental benefits.

    --  On enhancing its restaurant facilities, the company began a
        market test of a comprehensive re-imaging program that
        includes a new exterior and interior paint scheme, upgraded
        decor and furnishings, music, uniforms, menu boards and
        landscaping. The new program, introduced at the company's 17
        restaurants in Waco, Texas, is intended to create an inviting
        atmosphere that reflects the personality of Jack, the chain's
        fictional founder and popular spokesman.

    --  Through new restaurant development and the sale of company
        restaurants to existing franchisees, Jack in the Box is
        executing its strategy to expand franchising to generate
        higher returns and higher margins, while mitigating
        business-cost and investment risks. Additionally, the
        second-quarter sale of 13 company Jack in the Box restaurants
        to franchisees increased the percentage of franchised
        restaurants to 27 percent of the Jack in the Box system at
        quarter end compared with 24 percent a year ago.

    --  To reduce future exposure to rising interest rates, the
        company entered into a forward swap, effective March 2008, to
        convert $60 million of its $270 million term loan at floating
        interest rates to a fixed rate for approximately two years.

    Fiscal year 2006 guidance update

    Jack in the Box Inc. today updated its earnings guidance for
fiscal 2006. For the full year, the company now expects to earn
approximately $2.60 - $2.63 per diluted share, which is up from its
previous forecast of approximately $2.57 - $2.60 per diluted share,
and compares with $2.48 per diluted share earned in fiscal 2005. The
fiscal year 2006 guidance includes the effect of expensing stock
options, as required by SFAS 123R. Fiscal 2005 results did not include
the expensing of stock options. The following table compares guidance
for fiscal year 2006 with 2005 comparable results, assuming the effect
of expensing stock options of approximately 15 cents per diluted share
(excluding the effect of accelerated vesting of retiree's stock
options) and certain other non-comparable items last year:

                                             Forecast
                                            Fiscal 2006   Fiscal 2005
                                           ------------- -------------
Diluted EPS                                $2.60 - 2.63         $2.48
Comparable adjustments:
 Effect of stock options if expensed in
  FY 2005(1)                                          -         (0.15)
 Nonrecurring tax-rate reduction in Q3 of
  FY 2005(2)                                          -         (0.06)
 Charge related to JBX Grill(R) in Q4 of
  FY 2005(3)                                          -          0.05
                                           ------------- -------------
Comparable diluted EPS                     $2.60 - 2.63         $2.32
                                           ============= =============

(1) Included in SG&A expense in the company's unaudited consolidated
    statements of earnings commencing with the adoption of SFAS 123R
    in the first quarter of fiscal 2006.

(2) Included in income taxes in the company's unaudited consolidated
    statements of earnings.

(3) Included in SG&A expense in the company's unaudited consolidated
    statements of earnings.

    Fiscal 2006 earnings guidance represents a 12-13 percent
improvement over comparable 2005 results. The primary assumptions on
which earnings guidance is based are as follows, in approximate
amounts:

    --  The opening of 40-50 company and franchised Jack in the Box
        restaurants, including 10-12 with new Quick Stuff convenience
        stores. Jack in the Box lowered by 5 the range of its forecast
        for new company and franchised restaurants due primarily to
        construction delays and the timing for entering new contiguous
        markets, which is now planned for 2007. Guidance for new
        company and franchised Qdoba restaurants is at 80-90
        locations, 5 fewer than previously forecast due to
        construction delays.

    --  A 3.5-4.5 percent increase in same-store sales at Jack in the
        Box company restaurants, and a 5.0-7.0 percent system
        same-store sales increase at Qdoba.

    --  Restaurant operating margin at 17.2-17.4 percent of sales
        versus 16.9 percent in 2005, due primarily to lower commodity
        costs, Profit Improvement Program initiatives, and fixed-cost
        leverage on same-store sales growth, partially offset by
        higher utility costs.

    --  Other revenues of $33-35 million, primarily related to the
        sale of 55-60 Jack in the Box restaurants to franchisees,
        approximately 5 fewer than previously forecast.

    --  An effective tax rate of 37.0-37.5 percent.

    --  Capital expenditures of $140-150 million compared with $124
        million in 2005, with the increase due primarily to
        investments associated with the planned re-imaging of 100-150
        Jack in the Box restaurants in 2006.

    Third quarter 2006 guidance

    The company also today provided earnings guidance for the third
quarter ending July 9, 2006, of approximately 65-67 cents per diluted
share versus 66 cents per diluted share in the prior year. The
quarter's guidance includes the effect of expensing stock options, as
required by SFAS 123R. Third-quarter fiscal 2005 results did not
include the effect of expensing of stock options of approximately 3
cents per diluted share. Additionally, the third quarter of fiscal
2005 included a lower tax rate of 31 percent due to the settlement of
a prior year's tax matter. The following table compares 2006 guidance
with 2005 comparable results after adjusting for the pro forma effect
of the nonrecurring tax-rate reduction and stock option expense in
fiscal 2005:

                                             Forecast
                                           Third Quarter Third Quarter
                                            Fiscal 2006   Fiscal 2005
                                           ------------- -------------
Diluted EPS                                $0.65 - 0.67         $0.66
Comparable adjustments:
  Nonrecurring tax-rate reduction(1)                  -         (0.06)
  Effect of stock options if expensed in
   FY 2005(2)                                         -         (0.03)
                                           ------------- -------------
Comparable diluted EPS                     $0.65 - 0.67         $0.57
                                           ============= =============

(1) Included in income taxes in the company's consolidated statements
    of earnings.

(2) Included in SG&A expense in the company's unaudited consolidated
    statements of earnings commencing with the adoption of SFAS 123R
    in the first quarter of fiscal 2006.

    Estimated third-quarter fiscal 2006 earnings guidance represents a
14-17 percent improvement over comparable prior-year results after
adjusting for the effect of a nonrecurring tax-rate reduction and
expensing stock options in fiscal 2005. The primary assumptions on
which third-quarter earnings guidance is based are as follows, in
approximate amounts:

    --  The opening of 8-10 new company and franchised Jack in the Box
        restaurants, including 1-2 with new Quick Stuff convenience
        stores, compared with 10 restaurants, including 4 Quick Stuff
        sites, in 2005; and the opening of 12-14 new company and
        franchised Qdoba restaurants compared with 15 in 2005.

    --  A 3.0-4.0 percent increase in same-store sales at Jack in the
        Box company restaurants on top of a 2.8 percent increase in
        2005.

    --  Restaurant operating margin at 18.0-18.2 percent of sales
        versus 17.2 percent in 2005, due primarily to lower food
        costs, fixed-cost leverage on increased sales and Profit
        Improvement Program initiatives, partially offset by higher
        utility costs.

    --  Other revenues of $7-8 million, primarily related to the sale
        of 15-20 Jack in the Box restaurants to franchisees, compared
        with $6.4 million in 2005, primarily related to the sale of 20
        company restaurants to franchisees.

    --  An effective tax rate of 37.0-37.5 percent.

    --  Capital expenditures of $35-40 million compared with $27
        million in 2005, with the increase due in part to investments
        associated with the planned re-imaging of Jack in the Box
        restaurants in 2006.

    Third quarter initiatives

    --  Several new products are slated for introduction at Jack in
        the Box restaurants in the third quarter, including a premium
        burger on sourdough bread, an addition to the chain's line of
        entree salads, a new variety of ice cream shake, a cheesecake
        dessert, a fresh fruit cup, and Dannon bottled water.

    --  This week, the company is expecting to reopen the last of 17
        Jack in the Box restaurants in Waco that were completely
        re-imaged. Construction is currently underway in a second
        market, where all of the restaurants will be re-imaged with
        the new design.

    About Jack in the Box Inc.

    Jack in the Box Inc. (NYSE:JBX), based in San Diego, is a
restaurant company that operates and franchises Jack in the Box(R)
restaurants, one of the nation's largest hamburger chains, with more
than 2,055 restaurants in 17 states. The company also operates a
proprietary chain of convenience stores called Quick Stuff(R), with
approximately 50 locations, each built adjacent to a full-size Jack in
the Box restaurant and including a major-brand fuel station.
Additionally, through a wholly owned subsidiary the company operates
and franchises Qdoba Mexican Grill(R), an emerging leader in
fast-casual dining, with more than 280 restaurants in 40 states. For
more information, visit www.jackinthebox.com.

    Safe harbor statement

    Except for the historical information contained herein, the
matters discussed in this press release are forward-looking statements
that are subject to substantial risks and uncertainties. These
statements, which include the company's guidance and related
assumptions, may be identified by the use of words such as
"assumption," "believes," "estimates," "expects," "guidance," "plans,"
"will," and other words of similar meaning.
    The following are some of the factors that could cause the
company's actual results to differ materially from those expressed in
the forward-looking statements: delays in the opening of new
restaurants; changes in actuarial assumptions and discount rates and
the related possibility of increased pension expense; changes in laws,
including laws related to immigration and to pension plans; work
stoppages; and adverse weather conditions in the regions in which the
company's restaurants are located. Costs may exceed projections,
including the cost of food, labor, pending or future legal claims, new
restaurant construction and remodels, and utilities. Increases in the
cost of fuel may increase the cost of food and packaging as well as
impact consumer spending patterns. Additional factors which may
adversely affect results include the effect of any widespread negative
publicity regarding the company or the foodservice industry in general
or particular foods. Further information about factors that could
affect the company's financial and other results is included in the
company's annual report on Form 10-K and its periodic reports on Forms
10-Q filed with the Securities and Exchange Commission. The
information in this press release is as of May 16, 2006. The company
undertakes no obligation to update or revise any forward-looking
statement, whether as the result of new information or otherwise.

    Use of non-GAAP financial information

    In this press release, the company provides (a) earnings per
diluted share (EPS) determined in accordance with generally accepted
accounting principles (GAAP), and (b) EPS adjusted for certain items
as follows:

    --  For the second quarter of fiscal 2005, comparable diluted EPS
        as shown in a table earlier in this press release includes the
        pro forma effect of expensing stock options in accordance with
        Statement of Financial Accounting Standards No. 123 ("SFAS
        123").

    --  For fiscal year 2005, comparable diluted EPS as shown in a
        table earlier in this press release includes the pro forma
        effect of expensing stock options in accordance with SFAS 123
        and excludes (i) the benefit from the tax rate reduction
        described above, and (ii) a charge related to canceling the
        test of JBX Grill in the fourth quarter of fiscal 2005.

    --  For the third quarter of fiscal 2005, comparable diluted EPS
        as shown in a table earlier in this press release (i) includes
        the pro forma effect of expensing stock options in accordance
        with SFAS 123, and (ii) excludes the benefit from the tax rate
        reduction described above.

    These non-GAAP financial measures are used by management to
evaluate financial operating performance. Use of these non-GAAP
measures also facilitates comparisons between current and prior period
financial results, estimates of future results, and to the results of
the company's competitors. These financial measures are also
comparable to forecasts made by securities analysts and others, which
generally exclude special items as they are difficult to predict in
advance. Non-GAAP measures are not intended to be a substitute for net
earnings determined in accordance with GAAP.


                 JACK IN THE BOX INC. AND SUBSIDIARIES
             UNAUDITED CONSOLIDATED STATEMENTS OF EARNINGS
                 (In thousands, except per share data)


                              Twelve Weeks       Twenty-Eight Weeks
                                  Ended                 Ended
                           ------------------- -----------------------
                           April 16, April 17,  April 16,   April 17,
                             2006      2005       2006        2005
                           --------- --------- ----------- -----------
Revenues:
  Restaurant sales         $487,822  $477,968  $1,127,702  $1,090,108
  Distribution and other
   sales                    108,122    73,886     248,083     166,926
  Franchise rents and
   royalties                 21,240    16,611      52,143      41,267
  Other                       9,052     7,536      18,025      15,407
                           --------- --------- ----------- -----------
                            626,236   576,001   1,445,953   1,313,708
                           --------- --------- ----------- -----------
Costs of revenues:
  Restaurant costs of
   sales                    151,569   150,355     355,514     343,353
  Restaurant operating
   costs                    250,418   245,711     581,566     564,977
  Costs of distribution
   and other sales          107,134    72,963     245,292     165,068
  Franchised restaurant
   costs                      9,984     8,189      22,851      18,431
                           --------- --------- ----------- -----------
                            519,105   477,218   1,205,223   1,091,829
                           --------- --------- ----------- -----------

Selling, general and
 administrative              69,131    64,040     158,681     143,598
                           --------- --------- ----------- -----------

Earnings from operations     38,000    34,743      82,049      78,281
Interest expense, net         3,440     2,478       7,430       6,451
                           --------- --------- ----------- -----------

Earnings before income
 taxes                       34,560    32,265      74,619      71,830

Income taxes                 12,773    11,588      27,609      25,723
                           --------- --------- ----------- -----------

Net earnings                $21,787   $20,677     $47,010     $46,107
                           ========= ========= =========== ===========

Net earnings per share:
  Basic                        $.63      $.57       $1.35       $1.28
  Diluted                      $.61      $.55       $1.31       $1.23

Weighted-average shares
 outstanding:
  Basic                      34,482    36,092      34,766      36,013
  Diluted                    35,701    37,395      35,921      37,340


                 JACK IN THE BOX INC. AND SUBSIDIARIES
            UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS
                            (In thousands)


                                                April 16,   April 17,
                                                  2006        2005
- ---------------------------------------------- ----------- -----------
                    ASSETS
Current assets:
  Cash and cash equivalents                      $159,134    $120,662
  Accounts and notes receivable, net               27,200      20,869
  Inventories                                      39,789      41,018
  Other current assets                            104,535     104,761
                                               ----------- -----------
    Total current assets                          330,658     287,310
                                               ----------- -----------

Property and equipment, net                       867,643     852,078

Other assets, net                                 177,547     181,449
                                               ----------- -----------

    TOTAL                                      $1,375,848  $1,320,837
                                               =========== ===========

     LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Current maturities of long-term debt             $7,884      $7,557
  Other current liabilities                       264,494     262,779
                                               ----------- -----------
    Total current liabilities                     272,378     270,336
                                               ----------- -----------

Long-term debt, net of current maturities         285,937     293,500

Other long-term liabilities                       215,190     197,768
                                               ----------- -----------
    Total liabilities                             773,505     761,604
                                               ----------- -----------

Stockholders' equity                              602,343     559,233
                                               ----------- -----------

    TOTAL                                      $1,375,848  $1,320,837
                                               =========== ===========

    CONTACT: Jack in the Box Inc.
             Brian Luscomb, 858-571-2229
             brian.luscomb@jackinthebox.com