HOLLY CORP
S-3/A, 1995-06-27
PETROLEUM REFINING
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<PAGE>   1

    
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 27, 1995.
    
 
                                                       REGISTRATION NO. 33-59411
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
 
                             ---------------------
 
   
                                AMENDMENT NO. 2
    
                                       TO
                                    FORM S-3
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
 
                             ---------------------
 
                               HOLLY CORPORATION
             (Exact Name of Registrant as Specified in Its Charter)
 
<TABLE>
<S>                                           <C>
                   DELAWARE                                     75-1056913
         (State or Other Jurisdiction                        (I.R.S. Employer
      of Incorporation or Organization)                   Identification Number)
        100 CRESCENT COURT, SUITE 1600                     CHRISTOPHER L. CELLA
             DALLAS, TEXAS 75201                      100 CRESCENT COURT, SUITE 1600
                (214) 871-3555                             DALLAS, TEXAS 75201
 (Address, Including Zip Code, and Telephone                  (214) 871-3555
 Number, Including Area Code, of Registrant's    (Name, Address, Including Zip Code, and
         Principal Executive Offices)             Telephone Number, Including Area Code,
                                                          of Agent for Service)
</TABLE>
 
                                   Copies to:
 
<TABLE>
<S>                                           <C>
           LAWRENCE D. STUART, JR.                          KERRY C. L. NORTH
            WEIL, GOTSHAL & MANGES                        BAKER & BOTTS, L.L.P.
        100 CRESCENT COURT, SUITE 1300                       2001 ROSS AVENUE
             DALLAS, TEXAS 75201                           DALLAS, TEXAS 75201
</TABLE>
 
                             ---------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement.
 
     If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. / /
 
     If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box: / /
 
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. / / --------------------
 
     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / / ------------------------
 
   
     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. / /
    
 
   
                             ---------------------
    
 
   
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
    
   
- --------------------------------------------------------------------------------
    
   
- --------------------------------------------------------------------------------
    
<PAGE>   2
 
   
     INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
     SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR
     MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
     SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
     UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
    
   
     OF ANY SUCH STATE.
    
 
   
                             SUBJECT TO COMPLETION
    
   
                   PRELIMINARY PROSPECTUS DATED JUNE 27, 1995
    
 
   
PROSPECTUS
    
 
   
                                1,000,000 SHARES
    

                           [HOLLY CORPORATION LOGO]
 
   
                                  COMMON STOCK
    
   
                            ------------------------
    
   
     All the shares of common stock, par value $.01 per share (the "Common
Stock"), of Holly Corporation (the "Company") offered hereby (the "Offering")
are being sold by the Selling Stockholders. See "Selling Stockholders." The
Company will not receive any of the proceeds from the sale of shares by the
Selling Stockholders. The Company's Common Stock is traded on the American Stock
Exchange under the symbol "HOC." On June 27, 1995, the last reported sale price
of the Common Stock on the American Stock Exchange was $     per share. See
"Price Range of Common Stock and Dividend Policy."
    
 
     SEE "RISK FACTORS" BEGINNING ON PAGE 9 FOR CERTAIN CONSIDERATIONS RELEVANT
TO AN INVESTMENT IN THE COMMON STOCK OFFERED HEREBY.
                            ------------------------
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
       PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
       REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

    
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------
                                                                                         PROCEEDS TO
                                                    PRICE TO         UNDERWRITING          SELLING
                                                     PUBLIC           DISCOUNT(1)      STOCKHOLDERS(2)
- ------------------------------------------------------------------------------------------------------
<S>                                            <C>                <C>                <C>
Per Share......................................          $                 $                  $
- ------------------------------------------------------------------------------------------------------
Total(2).......................................          $                 $                  $
- ------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------
</TABLE>
     

(1) The Company and the Selling Stockholders have agreed to indemnify the
    several Underwriters against certain liabilities under the Securities Act of
    1933, as amended. See "Underwriting."

    
(2) The Selling Stockholders have granted the Underwriters an option,
    exercisable within 30 days after the date hereof, to purchase up to an
    additional 150,000 shares of Common Stock solely to cover over-allotments,
    if any. If such option is exercised in full, the total Price to Public,
    Underwriting Discount and Proceeds to Selling Stockholders will be
    $          , $          and $          , respectively. See "Underwriting."
    
                            ------------------------
     The shares of Common Stock are offered by the several Underwriters, subject
to prior sale, when, as and if issued to and accepted by them, and subject to
certain other conditions. The Underwriters reserve the right to withdraw, cancel
or modify such offer and to reject orders in whole or in part. It is expected
that delivery of the shares of Common Stock will be made in New York, New York
on or about             , 1995.
                            ------------------------
MERRILL LYNCH & CO.                                              CS FIRST BOSTON
                            ------------------------
               The date of this Prospectus is             , 1995.
<PAGE>   3
 
                    [PHOTOGRAPH OF THE NAVAJO REFINERY OVER
                 GRAPHIC OF NAVAJO REFINING COMPANY'S MARKETS]
 
                                        2
<PAGE>   4
 
IN CONNECTION WITH THE OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK AT
LEVELS ABOVE THOSE WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN MARKET. SUCH
TRANSACTIONS MAY BE EFFECTED ON THE AMERICAN STOCK EXCHANGE OR OTHERWISE. SUCH
STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                             AVAILABLE INFORMATION
 
     The Company has filed with the Securities and Exchange Commission (the
"Commission") a Registration Statement on Form S-3 (together with all amendments
and exhibits thereto, the "Registration Statement") under the Securities Act of
1933, as amended (the "Securities Act"), with respect to the Common Stock
offered hereby. This Prospectus does not include all the information set forth
in the Registration Statement and the exhibits thereto, to which reference is
made for further information with respect to the Company.
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and the rules and
regulations thereunder, and in accordance therewith files periodic reports,
proxy and information statements, and other information with the Commission. The
Registration Statement and the exhibits thereto and all reports, proxy and
information statements, and other information filed by the Company with the
Commission may be inspected at the public reference facilities maintained by the
Commission at 450 Fifth Street, N.W., Washington, D.C. 20549, and may also be
inspected and copied at the regional offices of the Commission located at 7
World Trade Center, 13th Floor, New York, New York 10048 and 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661. Copies of such materials may be
obtained from the Public Reference Section of the Commission, 450 Fifth Street,
N.W., Washington, D.C. 20549, at prescribed rates. The Common Stock is listed on
the American Stock Exchange and all reports, proxy and information statements,
and other information filed by the Company with the Commission also may be
inspected at the American Stock Exchange, 86 Trinity Place, New York, New York
10006.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents filed with the Commission are incorporated into
this Prospectus by reference:
 
          (1) The Company's Annual Report on Form 10-K for the fiscal year ended
     July 31, 1994;
 
          (2) The Company's Quarterly Report on Form 10-Q for the quarter ended
     October 31, 1994;
 
          (3) The Company's Quarterly Report on Form 10-Q for the quarter ended
     January 31, 1995; and
 
          (4) The Company's Quarterly Report on Form 10-Q for the quarter ended
     April 30, 1995.
 
     All documents filed by the Company pursuant to Sections 13(a), 13(c), 14 or
15(d) of the Exchange Act after the date of this Prospectus and prior to the
termination of the Offering shall be deemed to be incorporated by reference in
this Prospectus and to be a part hereof from the date of filing of such
documents. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement contained herein
or in any other subsequently filed document which also is or is deemed to be
incorporated by reference herein modifies or supersedes such statement. Any such
statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of the Prospectus.
 
     The Company will provide without charge to each person, including any
beneficial owner of Common Stock, to whom a copy of this Prospectus has been
delivered, upon the written or oral request of such person, a copy of any and
all of the documents which have been or may be incorporated by reference in this
Prospectus, except that exhibits to such documents will not be provided unless
they are specifically incorporated by reference into such documents. Requests
for copies of any such document should be directed to Holly Corporation, 100
Crescent Court, Suite 1600, Dallas, Texas 75201, Attention: Controller,
telephone: (214) 871-3555.
 
                                        3
<PAGE>   5
 
                               PROSPECTUS SUMMARY
 
     The following summary is qualified in its entirety by the more detailed
information and financial statements appearing elsewhere in this Prospectus.
Unless otherwise indicated, the information contained in this Prospectus assumes
that the Underwriters' over-allotment option is not exercised. Unless the
context otherwise requires, the following terms are used herein with the
following meanings: (i) the "Company" refers to Holly Corporation and its
consolidated subsidiaries, taken as a whole, (ii) "MRC" refers to Montana
Refining Company, a Partnership, the general partners of which are wholly-owned
subsidiaries of Holly Corporation, (iii) the "Montana Refinery" refers to MRC's
refinery near Great Falls, Montana, (iv) "Navajo" refers to Navajo Refining
Company, a wholly-owned subsidiary of Holly Corporation and (v) the "Navajo
Refinery" refers to Navajo's Artesia and Lovington, New Mexico refining
facilities, collectively.
 
                                  THE COMPANY
 
     The Company is an independent refiner of petroleum and petroleum
derivatives and produces high value light products such as gasoline, diesel fuel
and jet fuel for sale primarily in the southwestern United States and northern
Mexico. The Company owns a high-conversion petroleum refinery in Artesia, New
Mexico, which it operates in conjunction with crude, vacuum distillation and
other facilities situated 65 miles away in Lovington, New Mexico. The Navajo
Refinery has a crude capacity of 60,000 barrels per day ("BPD") and can process
a variety of high sulfur ("sour") crude oils. For the last three fiscal years,
sour crude oils have represented approximately 85% of the crude oils processed
by the Navajo Refinery. The Navajo Refinery's processing capabilities enable
management to vary its crude supply mix to take advantage of changes in raw
materials prices and to respond to fluctuations in the availability of crude oil
supplies. The Navajo Refinery converts approximately 86% of its raw materials
throughput into high value light products. For fiscal 1994, including barrels
purchased for resale, gasoline, diesel fuel and jet fuel represented 56.5%,
19.7% and 11.1%, respectively, of Navajo's sales volume. For the last three
fiscal years, excluding downtime for scheduled maintenance and turnarounds, the
Navajo Refinery has operated at an average annual crude capacity utilization
rate of approximately 93%.
 
     The Artesia facility is located on a 300-acre site and has fully integrated
crude, fluid catalytic cracking ("FCC"), vacuum distillation, alkylation,
hydrodesulfurization and reforming units, and approximately 1.5 million barrels
of feedstock and product tank storage. The Lovington facility is operated as an
integrated component of the Navajo Refinery and refines crude oil into
intermediate products, which are transported, primarily via a Company-owned
pipeline, to the Artesia facility for further processing. Navajo's assets also
include a 500-mile crude oil gathering pipeline system, 30 crude oil and product
tank trucks, three refined products pipelines and product storage at terminals
in Tucson, Albuquerque, Artesia and El Paso in which the Company has 50% or
greater interests.
 
     The Company also owns a 7,000 BPD petroleum refinery near Great Falls,
Montana, which can process a range of crude oils and which serves primarily the
State of Montana. For fiscal 1994, including barrels purchased for resale,
gasoline, diesel fuel, asphalt and jet fuel represented 38.6%, 24.3%, 18.6% and
15.7% of MRC's sales volume. For the last three fiscal years, excluding downtime
for scheduled maintenance and turnarounds, the Montana Refinery has operated at
an average annual crude capacity utilization rate of approximately 94%.
 
     In addition to its refining operations, the Company also conducts a
small-scale oil and gas exploration and production program.
 
                                        4
<PAGE>   6
 
     Despite fluctuating industry conditions, the Company, which was
incorporated in 1947 and acquired the Navajo Refinery in 1969, has generated
positive net income for each of the past 24 years. The Company had net income
and cash from operating activities of $24.0 million and $33.6 million,
respectively, for fiscal 1990, $11.7 million and $27.9 million for fiscal 1991,
$2.8 million and $1.0 million for fiscal 1992, $19.0 million and $38.7 million
for fiscal 1993, and $20.7 million and $27.7 million for fiscal 1994. The
Company believes that it has certain business strengths that have contributed to
its history of profitable operations. Among those strengths are the following:
 
     - Geographic location/attractive markets. The Navajo Refinery serves
      primarily the growing southwestern United States market, including El
      Paso, Albuquerque, Phoenix and Tucson, which generally has favorable
      supply and demand characteristics compared to Gulf Coast markets, and the
      northern Mexico market, which is expected to experience demand growth over
      the next several years. According to data compiled by the United States
      Bureau of the Census, from April 1, 1990 to July 1, 1993, the population
      of the Navajo Refinery's principal market area in the U.S. (Arizona, New
      Mexico and El Paso) grew at a compound annual rate of 2.2%, compared to a
      nationwide compound annual growth rate of 1.1% during that period. From
      April 1, 1980 to July 1, 1993, this area grew at a compound annual rate of
      2.5%, compared to a nationwide rate of 1.0%. The Montana Refinery serves
      primarily the State of Montana, which also historically has had relatively
      favorable supply and demand characteristics.
 
     - High conversion refinery. The Navajo Refinery converts approximately 86%
      of its raw materials throughput into high value light products from a
      variety of sour crude oils and can vary the refined products it produces
      to respond to fluctuations in demand. The Navajo Refinery's processing
      capabilities also enable management to vary its crude supply mix to take
      advantage of changes in raw materials prices and to respond to
      fluctuations in the availability of crude oil supplies. For the last three
      fiscal years, sour crude oils have represented approximately 85% of the
      crude oils processed by the Navajo Refinery.
 
     - Raw material supply. Located on the northwestern shelf of the Permian
      Basin, the Navajo Refinery has direct access to a historically reliable
      crude oil supply, which is transported to the refinery primarily through a
      500-mile, Company-owned crude oil pipeline gathering system and by crude
      oil tank trucks. The Company's crude oil pipelines connect to tankage
      facilities in New Mexico and Texas and are connected to, or are located in
      proximity to, a number of common carrier crude oil pipelines. The Montana
      Refinery obtains most of its crude oil via a 93-mile, Company-owned
      pipeline which runs from near the Canadian border.
 
     - Distribution logistics. The Company distributes refined products from the
      Navajo Refinery to its principal markets primarily through (i) a
      Company-owned pipeline extending from Artesia to El Paso and (ii) a
      Company-owned pipeline extending from Artesia to Orla, Texas, and from
      there west to El Paso. Products can be shipped by pipeline from El Paso to
      Albuquerque via a products pipeline system owned by Chevron Pipeline
      Company, and to Tucson and Phoenix via a products pipeline system owned by
      Santa Fe Pacific Pipeline. The Company also owns a segment of a products
      pipeline running from Orla to Odessa, Texas, which is currently inactive.
      The Company believes that the proximity of the Navajo Refinery to its
      principal markets and the refinery's products distribution network provide
      a transportation cost advantage over Gulf Coast and West Coast refineries
      in supplying its markets.
 
                                        5
<PAGE>   7
 
                               BUSINESS STRATEGY
 
     The Company's strategy has been, and continues to be, to optimize its
refinery operations to increase the proportion of high value products it
produces and to lower operating costs. As part of this strategy, the Company
completed a $63 million expansion of the Navajo Refinery in December 1991,
which, among other things, increased its refining capacity from 40,000 to 60,000
BPD. That expansion consisted principally of the addition of a new continuous
catalytic regeneration unit, the modification of the FCC unit, the expansion of
the naphtha desulfurizer and the installation of new sulphur and alkylation
units. The installation of new equipment and the modification and upgrading of
existing equipment as part of that expansion program increased the proportion of
sour crude oils that the Navajo Refinery can process and increased the
proportion of its throughput that can be converted into higher value products.
 
   
     The Company continues to evaluate improvements to its operating cost
structure, refineries and crude oil gathering and product distribution systems.
Management believes that certain enhancements and additions to the Navajo
Refinery should better position the Company to respond to competitive pressures
and to meet possible increases in demand for refined products. As part of its
strategy, management currently intends to spend approximately $15 million over
an 18-month period on identified capital enhancement projects at the Navajo
Refinery. Those projects involve upgrades to the FCC and alkylation units, the
construction of an isomerization unit and the installation of a new selective
hydrogenation process ("SHP") unit. Management expects these projects to
increase the Navajo Refinery's total gasoline production and to improve its
ability to produce a greater proportion of "premium" (high octane) gasoline. In
addition, these enhancements and plant additions are expected to improve
management's flexibility to operate using different types of crude oils and
other raw materials and to provide a platform for further refinery expansion, if
appropriate, in the future. In addition, the Company is evaluating a number of
other possible capital improvement projects, including (i) the redistribution of
process activities between the Lovington and Artesia facilities in order to
realize potential operating and transportation cost savings, (ii) other upgrades
to improve the efficiency of the Navajo Refinery, (iii) modifications to
increase product pipeline distribution capacity and (iv) product pipeline
reconditioning and construction to facilitate entry into new markets. See
"Capital Improvement Projects."
    
 
     The Company's executive offices are located at 100 Crescent Court, Suite
1600, Dallas, Texas 75201, and its telephone number at that address is (214)
871-3555.
 
                                  THE OFFERING
 
   
<TABLE>
<S>                                   <C>    
Common Stock Offered by
  the Selling Stockholders..........  1,000,000  shares
Common Stock to be Outstanding after
    the Offering....................  8,253,514 shares
Use of Proceeds.....................  The Company will not receive any of the proceeds from
                                      the sale of shares by the Selling Stockholders. See
                                      "Use of Proceeds."
American Stock Exchange Symbol......  HOC
Dividend Policy.....................  The Company currently pays a quarterly dividend of $.10
                                      per share of Common Stock outstanding. See "Price Range
                                      of Common Stock and Dividend Policy."
</TABLE>
     
                                        6
<PAGE>   8
 
               SUMMARY CONSOLIDATED FINANCIAL AND OPERATING DATA
 
     The summary consolidated financial data presented below for the five years
ended July 31, 1994 have been derived from the Company's audited consolidated
financial statements. The financial data for the nine months ended April 30,
1994 and at and for the nine months ended April 30, 1995 have been derived from
the unaudited consolidated financial statements of the Company which, in the
opinion of management, contain all adjustments, consisting only of normal,
recurring adjustments, necessary to present fairly the Company's results of
operations and financial position for such periods and at such dates. The
consolidated results of operations for the nine months ended April 30, 1995 are
not necessarily indicative of results to be expected for the full year or for
future periods. The following summary consolidated financial and operating data
should be read in conjunction with the more detailed financial and other
information contained elsewhere herein. See "Selected Financial Data,"
"Management's Discussion and Analysis of Results of Operations and Financial
Condition" and "Business."
 
<TABLE>
<CAPTION>
                                       NINE MONTHS ENDED
                                           APRIL 30,                                YEARS ENDED JULY 31,
                                      --------------------      ------------------------------------------------------------
                                        1995        1994          1994          1993        1992        1991          1990
                                      --------    --------      --------      --------    --------    --------      --------
                                                   (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AND OPERATING DATA)
<S>                                   <C>         <C>           <C>           <C>         <C>         <C>           <C>
INCOME STATEMENT DATA:
Revenues............................. $454,733    $400,141      $552,320      $630,621    $506,668    $489,333      $438,882
Income from operations...............   18,489      42,152        43,540        38,671      11,016      20,830        41,772
Interest expense, net................    5,605       6,548         8,538         9,354       9,654       3,889         4,880
Income before cumulative effect of
  accounting change..................    7,859      21,269        20,717        19,933       2,759      11,734        23,955
Cumulative effect of accounting
  change.............................    5,703          --            --          (958)         --          --            --
Net income...........................   13,562      21,269        20,717        18,975       2,759      11,734        23,955
 
Income per common share:
  Before cumulative effect of
    accounting change................ $    .95    $   2.58      $   2.51      $   2.42    $    .33    $   1.42      $   2.90
  Cumulative effect of accounting
    change...........................      .69          --            --          (.12)         --          --            --
                                      --------    --------      --------      --------    --------    --------      --------
  Net income......................... $   1.64    $   2.58      $   2.51      $   2.30    $    .33    $   1.42      $   2.90
                                      ========    ========      ========      ========    ========    ========      ========
OTHER FINANCIAL DATA:
EBITDA(1)............................ $ 30,224    $ 50,203      $ 54,411      $ 54,015    $ 20,401    $ 29,289      $ 48,797
Net cash provided by operating
  activities.........................   26,733      27,882        27,684        38,737         961      27,907        33,643
Capital expenditures.................   10,606      18,505        22,521        20,120      22,317      53,899        13,889
Cash dividends per common share...... $    .30    $    .25      $    .35      $    .30    $    .45    $    .48      $    .40
</TABLE>
 
   
<TABLE>
<CAPTION>
                                                                                                     APRIL 30, 1995
                                                                                                     --------------
                                                                                                     (IN THOUSANDS)
<S>                                                                                                  <C>
BALANCE SHEET DATA:
Working capital....................................................................................     $ 28,374
Total assets.......................................................................................      290,433
Long-term debt (less current maturities)...........................................................       68,832
Stockholders' equity...............................................................................       76,299
</TABLE>
     
                                        7
<PAGE>   9
 
   
<TABLE>
<CAPTION>
                                             NINE MONTHS ENDED
                                                  APRIL 30                            YEARS ENDED JULY 31,
                                             ------------------      -------------------------------------------------------
                                              1995       1994         1994         1993       1992       1991         1990
                                             -------    -------      -------      -------    -------    -------      -------
<S>                                          <C>        <C>          <C>          <C>        <C>        <C>          <C>
OPERATING DATA:
Refinery production (BPD)(2)...............   67,900     63,300(3)    64,300(3)    65,300     55,200     44,800(3)    46,400
Crude charge (BPD)(4)......................   65,159     59,404(3)    60,911(3)    62,115     51,723     43,838(3)    46,071
Refinery utilization (BPD)(5)..............    97.3%      88.7%(3)     90.9%(3)     92.7%      88.2%      93.3%(3)     98.0%
Average per barrel:
  Net sales................................  $ 23.85    $ 22.63      $ 22.88      $ 25.43    $ 24.84    $ 29.79      $ 25.41
  Raw materials costs(6)...................    19.01      16.13        16.99        20.10      20.41      24.61        19.76
                                             -------    -------      -------      -------    -------    -------      -------
  Gross margin.............................  $  4.84    $  6.50      $  5.89      $  5.33    $  4.43    $  5.18      $  5.65
                                             =======    =======      =======      =======    =======    =======      =======
Product sales (percent of total sales
  volume)(7):
  Gasolines................................    57.4%      54.9%        54.5%        52.0%      49.4%      46.6%        46.6%
  Diesel fuels.............................     19.4       20.7         20.1         23.6       21.1       20.1         18.7
  Jet fuels................................     11.3       11.4         11.7         10.4       13.2       18.2         20.5
  Asphalt..................................      7.3        8.6          9.4          9.8       10.8        8.9          8.1
  LPG and other............................      4.6        4.4          4.3          4.2        5.5        6.2          6.1
                                             -------    -------      -------      -------    -------    -------      -------
    Total..................................   100.0%     100.0%       100.0%       100.0%     100.0%     100.0%       100.0%
                                             =======    =======      =======      =======    =======    =======      =======
</TABLE>
    
 
- ---------------
 
(1) EBITDA is defined as earnings before interest, taxes, depreciation and
     amortization and is presented herein because it is commonly used to
     evaluate a company's ability to service and/or to incur debt or to fund
     capital expenditures. EBITDA should not be considered in isolation or as a
     substitute for operating income, cash flows from operating activities and
     other consolidated income or cash flow data prepared in accordance with
     generally accepted accounting principles or as a measure of the Company's
     profitability or liquidity.
 
   
(2) Barrels per calendar day of refined products produced from crude oil and
     other raw materials.
    

    
(3) Refinery production, crude charge and utilization rates were reduced as a
     result of a scheduled four-week turnaround for major maintenance at the
     Navajo Refinery.
    

    
(4) Barrels per day of crude oil processed.
    

    
(5) Crude charge divided by crude capacity.
    

    
(6) Includes cost of refined products purchased for resale.
    

    
(7) Includes refined products purchased for resale representing 2.5%, 3.7%,
     3.9%, 3.2%, 0.7%, 0.7% and 0.3%, respectively, of total sales volume for
     the periods shown in the table above.
    

 
                                        8


<PAGE>   10
 
                                  RISK FACTORS
 
     Prospective purchasers of the shares of Common Stock offered hereby should
consider carefully the following factors, as well as the other information set
forth or incorporated by reference in this Prospectus.
 
FLUCTUATIONS IN REFINING MARGINS
 
     The Company's operating results depend largely on the spread, or margin,
between prices paid by the market for refined petroleum products and prices paid
by the Company for crude oils and feedstocks. The Company's refining margins and
operating results have fluctuated, and will continue to fluctuate, due to
numerous factors, including changes in operating levels of other refineries in
the Company's marketing areas and in other areas of the United States, changes
in the differentials between sour and sweet crude oil prices on international
and U.S. markets, changes in the level of imported refined products and
variations in levels of demand for its principal products. Although an increase
or decrease in the price of crude oil generally results in a corresponding
increase or decrease in the price of refined products, changes in the prices of
refined products generally lag behind upward and downward changes in crude oil
prices. As a result, a rapid and significant increase in the market price for
crude oil could have an adverse impact on refining margins. The Company's future
results of operations will continue to be affected by these factors. Future
margins, results of operations and earnings per share could also be affected by
other factors beyond the Company's control, such as changes in, or the enactment
of, environmental or other regulations, which could require substantial
expenditures without necessarily increasing capacity or operating efficiency.
See "Management's Discussion and Analysis of Results of Operations and Financial
Condition" and "Business."
 
DEPENDENCE ON NAVAJO REFINERY; INSURANCE
 
     The Company's performance depends primarily upon Navajo's results of
operations. Prolonged downtime of the Navajo Refinery for scheduled maintenance
turnarounds, unanticipated repairs or other reasons could materially and
adversely affect the Company's operating results. The Company's operations
(including its limited exploration and production activities) are subject to
normal business hazards and risks. The Company maintains insurance for its
operations, but there is no assurance that the Company will not incur losses
beyond the limits, or outside the coverage, of its insurance. See
"Business -- Insurance."
 
UNCERTAINTIES RELATED TO CAPITAL IMPROVEMENT PROJECTS
 
   
     The Company intends to implement the capital improvement projects it has
identified for enhancing the Navajo Refinery with cash flows from operating
activities. The Company's results of operations will be affected by future
operating margins and other factors, some of which will be beyond its control.
The Company's ability to implement the identified refinery enhancement projects
will also be affected by other factors, some of which also will be beyond the
Company's control. Among those factors will be the absence of unanticipated
technical difficulties, fabrication delays or other occurrences, all of which
could increase the cost, and delay the completion, of these projects. In
addition, the identified refinery enhancement projects will require the Company
to obtain certain governmental approvals, and there can be no assurance whether
or when the Company will obtain those permits. Because of these uncertainties,
the Company is unable to predict when these projects will be fully implemented
or to provide any assurance that the anticipated benefits of these projects will
be realized or, if realized, will not be offset by other factors affecting the
Company's operations. In addition to the foregoing, management will have broad
discretion in deciding whether to implement other capital improvement projects
it is currently evaluating, and there can be no assurance that the Company will
have sufficient sources of funds to implement any or all of these other capital
projects.
    
 
COMPETITION; PIPELINE CONSTRAINTS
 
     The petroleum refining business is highly competitive. Among the Company's
competitors are some of the world's largest integrated petroleum companies,
which have their own crude oil supplies, distribution and marketing systems. In
addition, Diamond Shamrock, Inc., an independent refiner and marketer, is
building a 420-mile, ten-inch refined products pipeline from its McKee refinery
near Dumas, Texas to El Paso, the
 
                                        9
<PAGE>   11
 
   
Company's largest market. Diamond Shamrock has announced that it expects to
complete that pipeline, which will have an initial capacity of 25,000 BPD, in
October 1995, and that it intends to use its pipeline to supply fuel to the El
Paso, Arizona and northern Mexico markets. The Diamond Shamrock pipeline could
substantially increase the supply of products in certain of the Company's
principal markets. In addition, there is currently excess pipeline capacity from
the West Coast into the Company's Arizona markets. There can be no assurance
that West Coast refiners will not seek to increase shipments of refined products
into the Company's markets or that other industry participants will not seek to
deliver their products to the Company's markets through existing pipelines, new
pipelines or otherwise. For example, in June 1995, an investor group announced
that it is negotiating to purchase an existing crude oil pipeline running from
West Texas to a refinery near Houston as part of the investor group's plan to
reverse the line and extend it for use in transporting refined products from the
Gulf Coast to El Paso. An increased supply of products in the Company's markets
could adversely affect its sales volume and the prices it can obtain for its
products.
    
 
     At times in the past, the common carrier pipelines used by the Company to
serve the Arizona markets have been operated at or near their capacity. In
addition, the common carrier pipeline used by the Company to serve the
Albuquerque market currently is operating at or near capacity. As a result, the
volume of refined products that the Company and other shippers have been able to
deliver to these markets at times has been limited. In general, no assurances
can be given that the Company will not experience future constraints on its
ability to deliver its products through common carrier pipelines or that any
existing constraints will not worsen. In particular, the flow of additional
products into El Paso for shipment to Arizona, either as a result of the new
Diamond Shamrock pipeline or otherwise, could result in the reoccurrence of such
constraints. See "Business -- Navajo Refining Company -- Markets and
Competition."
 
SALES TO PRINCIPAL CUSTOMERS
 
     For the 1994 fiscal year, approximately 12% of the Company's revenues
resulted from sales of jet fuel to the United States government and 11% were
attributable to sales of gasoline to an affiliate of PEMEX, the government-owned
energy company of Mexico. Sales to the United States government have been made
pursuant to a series of one-year contracts and sales to PEMEX have been made
under a contract that expires in mid-1997. The loss of either or both of these
customers could have a material and adverse effect on the Company's results of
operations. See "Business -- Navajo Refining Company -- Principal Products and
Customers."
 
ENVIRONMENTAL REGULATION
 
     The Company's operations are subject to federal, state and local laws and
regulations governing, among other things, emissions to air, discharges to
water, and transportation, treatment and disposal of waste and other materials.
The Company is and has been the subject of various state, federal and private
proceedings relating to environmental regulations and conditions, including a
currently pending proceeding brought by the United States Department of Justice
(the "DOJ") on behalf of the Environmental Protection Agency (the "EPA")
alleging ongoing violations of the Resource Conservation and Recovery Act
("RCRA") at the Navajo Refinery. The Company believes that it is in the final
stages of negotiating a settlement of this litigation with the DOJ and the EPA,
which, if consummated, could involve expenditures by the Company of
approximately $3 million to $4 million to construct a new wastewater management
system and to close existing wastewater evaporation ponds. The Company also
expects that the settlement will provide for the payment of a civil penalty of
less than $2 million. There can be no assurance, however, that the Company and
the government will settle the outstanding litigation or that, if not settled,
the final resolution of that suit would not have a material adverse effect on
the Company and its results of operations or financial condition.
 
     While the specifics cannot be presently determined, new laws or regulations
or changes in existing laws or regulations could require the Company to make
significant site or operational modifications, which could involve substantial
expenditures or the reduction or suspension of certain operations. See
"Business -- Regulation."
 
                                       10
<PAGE>   12
 
LIMITED LIQUIDITY OF COMMON STOCK; SHARES ELIGIBLE FOR FUTURE SALE
 
   
     Although the Common Stock is listed on the American Stock Exchange, trading
volume has frequently been low over the past several years. Approximately 45% of
the outstanding shares of Common Stock is held by or for the benefit of two
families, which have been significant stockholders of the Company for over 30
years. Approximately 15% of the outstanding shares of Common Stock is held by
the Company's Employee Stock Ownership Plan (the "ESOP"). Immediately after
giving effect to the Offering, the two principal stockholder families, which are
the Selling Stockholders in the Offering, will beneficially own, in the
aggregate, approximately 33% of the outstanding Common Stock and the ESOP will
own approximately 15% of the outstanding Common Stock. There can be no assurance
that the consummation of the Offering will result in greater trading volume in
the Common Stock. See "Price Range of Common Stock and Dividend Policy" and
"Selling Stockholders." One hundred-eighty days after the date of this
Prospectus, certain contractual restrictions agreed to by the stockholder
families (see "Underwriting") will expire, and 2,698,167 shares of Common Stock
held by such stockholders (representing approximately 33% of the total shares of
Common Stock outstanding subsequent to the Offering) will be eligible for sale
in the open market, pursuant to Rule 144 or otherwise. Sales of substantial
amounts of Common Stock, or the perception that such sales could occur, could
adversely affect prevailing market prices for the Common Stock.
    

 
                                       11


<PAGE>   13
 
                                USE OF PROCEEDS
 
   
     The Company will not receive any portion of the net proceeds from the sale
of the shares of Common Stock by the Selling Stockholders.
    
 
                          CAPITAL IMPROVEMENT PROJECTS
 
IDENTIFIED REFINERY ENHANCEMENT PROJECTS
 
   
     As part of its efforts to improve production efficiencies, management
currently intends to enhance the Navajo Refinery by upgrading the FCC and
alkylation units, constructing an isomerization unit and installing a new SHP
unit. These projects are intended to improve the Navajo Refinery's ability to
produce a greater proportion of higher yielding products, principally "premium"
(high octane) gasolines, and to enhance management's flexibility to choose among
different types of crude oils and other raw materials in response to changing
prices of supplies. The Company currently estimates that the cost of these
projects will be approximately $15 million and expects to implement them over an
18-month period with cash flows from operating activities. The Company's results
of operations will be affected by future operating margins and other factors,
some of which will be beyond its control.
    
 
     The modified FCC unit is expected to permit the refining of heavier
feedstocks than are currently processed, which would enhance the Company's
ability to take advantage of price differentials between sweet and sour crude
oils. Similarly, the isomerization unit is expected to provide the Company with
the ability to upgrade additional quantities of lower priced natural gasoline
into finished gasoline. It is anticipated that the SHP unit and the upgraded
alkylation unit will increase the refinery's production capacity for alkylate, a
high octane gasoline blendstock, which also would contribute to the refinery's
improved ability to produce premium unleaded gasolines and to upgrade natural
gasoline into a refined product. Consequently, the Company expects that the
enhancements to the Navajo Refinery will provide management with additional
flexibility in managing the refinery's crude oil and other raw materials
supplies. Further, based on industry studies concerning new environmental
regulations promulgated by the California Air Resources Board and scheduled to
go into effect in California in 1996, it appears that California refiners may
require increased supplies of alkylates to produce the cleaner burning gasolines
called for by the new regulations. In that event, the Navajo Refinery's
increased production of alkylate could be made available for sale to California
refineries.
 
     The Company expects to commence its identified refinery enhancement
projects promptly. However, management intends to bring the new and upgraded
equipment on-line in a manner that will minimize disruption to the Navajo
Refinery's operations. Consequently, management does not expect to make the FCC
modifications until the scheduled fall 1996 maintenance turnaround of the
refinery.
 
OTHER PROJECTS UNDER CONSIDERATION
 
   
     The Company is currently evaluating certain other enhancements and
additions to the Navajo Refinery and the related supply and distribution systems
to better position it to respond to competitive pressures and to meet possible
increases in demand for refined products. Future capital projects that are being
considered include (i) the redistribution of process activities between the
Lovington and Artesia facilities in order to realize potential operating and
transportation cost savings, (ii) other upgrades to improve the efficiency of
the Navajo Refinery, (iii) modifications to increase product pipeline
distribution capacity and (iv) product pipeline reconditioning and construction
to facilitate entry into new markets. To the extent available, cash flows from
operating activities could be used to finance the cost of these projects,
although the Company may require additional funds if a decision were made to
implement most or all of these projects. There can be no assurance that the
Company will have sufficient sources of funds to implement any or all of these
other capital projects.
    
 
                                       12
<PAGE>   14
 
                                 CAPITALIZATION
 
   
     The following table sets forth the unaudited consolidated capitalization of
the Company at April 30, 1995.
    

    
<TABLE>
<CAPTION>
                                                                            (DOLLARS IN THOUSANDS)
                                                                            ----------------------
<S>                                                                         <C>
Current maturities of long-term debt......................................         $  5,608
Long-term debt, less current maturities...................................           68,832
Stockholders' equity:
  Preferred stock, par value $1.00 per share; 1,000,000 shares authorized;
     none issued and outstanding..........................................               --
  Common stock, par value $.01 per share; 20,000,000 shares authorized;
     8,650,282 shares issued and outstanding; 10,150,282 shares issued and
     outstanding, as adjusted.............................................               87
  Additional capital......................................................            6,132
  Retained earnings.......................................................           71,059
                                                                                -----------
                                                                                     77,278
  Common stock held in treasury, at cost; 396,768 shares..................             (569)
  Deferred charge -- amount due from ESOP.................................             (410)
                                                                                -----------
          Total stockholders' equity......................................           76,299
                                                                                -----------
          Total capitalization............................................         $150,739
                                                                            ================
</TABLE>
    
 
                                       13
<PAGE>   15
 
                PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY
 
     The Common Stock is traded on the American Stock Exchange under the symbol
"HOC". The following table sets forth the range of the daily high and low sale
prices per share of Common Stock, as reported on the American Stock Exchange,
and dividends paid per share of Common Stock for the periods indicated:
 
   
<TABLE>
<CAPTION>
                   FISCAL YEARS ENDED JULY 31,                  HIGH      LOW       DIVIDENDS
    ----------------------------------------------------------  ----      ----      ---------
    <S>                                                         <C>       <C>       <C>
    1993
      First Quarter...........................................  $25        $23       $.075
      Second Quarter..........................................   30 7/8     23 7/8    .075
      Third Quarter...........................................   29 3/8     25 7/8    .075
      Fourth Quarter..........................................   30 1/2     26 3/8    .075
    1994
      First Quarter...........................................  30          26 5/8    .075
      Second Quarter..........................................  30          25 3/8    .075
      Third Quarter...........................................   30 1/2     27 1/8    .10
      Fourth Quarter..........................................   33 3/8     28 1/4    .10
    1995
      First Quarter...........................................   28 1/2     23 3/4    .10
      Second Quarter..........................................   26 1/2     24        .10
      Third Quarter...........................................   26 3/4     23        .10
      Fourth Quarter (through June 26, 1995)..................   28 1/2     23 1/8    .10
</TABLE>
    

     As of May 31, 1995, the Company had approximately 2,100 stockholders of
record.
 
     The Company, which currently pays a quarterly dividend of $.10 per share of
Common Stock outstanding, considers the declaration of dividends on a quarterly
basis. On June 9, 1995, the Company's Board of Directors declared a regular
quarterly dividend in the amount of $.10 per share payable on July 7, 1995. The
Company's ability to pay future dividends depends on its future earnings and
capital requirements, and on its financial condition and other factors. The
Company's senior notes (the "Senior Notes") and its revolving credit agreement
(the "Credit Agreement") could limit the Company's ability to pay dividends
under certain circumstances. See Note 6 to the Consolidated Financial Statements
for the year ended July 31, 1994 included elsewhere herein.
 
                                       14

<PAGE>   16
 
                            SELECTED FINANCIAL DATA
 
     The selected financial data presented below for the five years ended July
31, 1994 have been derived from the Company's audited consolidated financial
statements. The selected financial data at and for the nine months ended April
30, 1994 and 1995 have been derived from the unaudited consolidated financial
statements of the Company which, in the opinion of management, contain all
adjustments, consisting only of normal, recurring adjustments, necessary to
present fairly the Company's results of operations and financial position for
such periods and at such dates. The consolidated results of operations for the
nine months ended April 30, 1995 are not necessarily indicative of the results
to be expected for the full year or for future periods. The selected financial
data presented below should be read in conjunction with the Consolidated
Financial Statements of the Company and the related notes thereto included
elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                    NINE MONTHS ENDED
                                        APRIL 30,                                  YEARS ENDED JULY 31,
                                 -----------------------     -----------------------------------------------------------------
                                   1995          1994          1994          1993          1992          1991          1990
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
                                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                              <C>           <C>           <C>           <C>           <C>           <C>           <C>
INCOME STATEMENT DATA:
Revenues.......................  $ 454,733     $ 400,141     $ 552,320     $ 630,621     $ 506,668     $ 489,333     $ 438,882
Costs and expenses:
  Cost of sales................    412,322       337,921       480,916       565,638       474,151       448,356       377,853
  General and administrative...      9,629         9,153        12,369        11,951         9,263         9,200         9,699
  Depreciation, depletion and
    amortization...............     11,735         8,051        10,871        11,344        10,085         6,984         6,515
  Exploration expenses,
    including dry holes........      2,451         2,706         4,441         2,867         2,005         3,834         2,576
  Miscellaneous................        107           158           183           150           148           129           467
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
                                   436,244       357,989       508,780       591,950       495,652       468,503       397,110
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
Income from operations.........     18,489        42,152        43,540        38,671        11,016        20,830        41,772
Other income (expense)
  Interest income..............        732           254           447           169           432           419           517
  Interest expense.............     (6,337)       (6,802)       (8,985)       (9,523)      (10,086)       (4,308)       (5,397)
  Other........................         --            --            --         4,000          (700)        1,475           510
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
                                    (5,605)       (6,548)       (8,538)       (5,354)      (10,354)       (2,414)       (4,370)
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
Income before income taxes and
  cumulative effect of
  accounting change............     12,884        35,604        35,002        33,317           662        18,416        37,402
Income tax provision
  (benefit)....................      5,025        14,335        14,285        13,384        (2,097)        6,682        13,447
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
Income before cumulative effect
  of accounting change.........      7,859        21,269        20,717        19,933         2,759        11,734        23,955
Cumulative effect of accounting
  change.......................      5,703            --            --          (958)           --            --            --
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
Net income.....................  $  13,562     $  21,269     $  20,717     $  18,975     $   2,759     $  11,734     $  23,955
                                 =========     =========     =========     =========     =========     =========     =========
Income per common share:
  Income before cumulative
    effect of accounting
    change.....................  $     .95     $    2.58     $    2.51     $    2.42     $     .33     $    1.42     $    2.90
  Cumulative effect of
    accounting change..........        .69            --            --          (.12)           --            --            --
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
  Net income...................  $    1.64     $    2.58     $    2.51     $    2.30     $     .33     $    1.42     $    2.90
                                 =========     =========     =========     =========     =========     =========     =========
</TABLE>
 
                                       15
<PAGE>   17
 
<TABLE>
<CAPTION>
                                    NINE MONTHS ENDED
                                        APRIL 30,                                  YEARS ENDED JULY 31,
                                 -----------------------     -----------------------------------------------------------------
                                   1995          1994          1994          1993          1992          1991          1990
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
                                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AND OPERATING DATA)
<S>                              <C>           <C>           <C>           <C>           <C>           <C>           <C>
OTHER FINANCIAL DATA:
EBITDA(1)......................  $  30,224     $  50,203     $  54,411     $  54,015     $  20,401     $  29,289     $  48,797
Net cash provided by operating
  activities...................     26,733        27,882        27,684        38,737           961        27,907        33,643
Capital expenditures...........     10,606        18,505        22,521        20,120        22,317        53,899        13,889
Cash dividends per common
  share........................  $     .30     $     .25     $     .35     $     .30     $     .45     $     .48     $     .40
Average number of shares of
  common stock outstanding.....  8,253,514     8,253,514     8,253,514     8,253,514     8,253,514     8,253,514     8,253,514
REFINERY OPERATING DATA:
Refinery production (BPD)(2)...     67,900        63,300(3)     64,300(3)     65,300        55,200        44,800(3)     46,400
Crude charge (BPD)(4)..........     65,139        59,404(3)     60,911(3)     62,115        51,723        43,838(3)     46,071
Refinery utilization
  (BPD)(5).....................      97.3%         88.7%(3)      90.9%(3)      92.7%         88.2%         93.3%(3)      98.0%
Average per barrel:
  Net sales....................  $   23.85     $   22.63     $   22.88     $   25.43     $   24.84     $   29.79     $   25.41
  Raw materials costs(6).......      19.01         16.13         16.99         20.10         20.41         24.61         19.76
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
  Gross margin.................  $    4.84     $    6.50     $    5.89     $    5.33     $    4.43     $    5.18     $    5.65
                                 =========     =========     =========     =========     =========     =========     =========
Product sales (percent of total
  sales volume)(7):
  Gasolines....................      57.4%         54.9%         54.5%         52.0%         49.4%         46.6%         46.6%
  Diesel fuels.................       19.4          20.7          20.1          23.6          21.1          20.1          18.7
  Jet fuels....................       11.3          11.4          11.7          10.4          13.2          18.2          20.5
  Asphalt......................        7.3           8.6           9.4           9.8          10.8           8.9           8.1
  LPG and other................        4.6           4.4           4.3           4.2           5.5           6.2           6.1
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
        Total..................     100.0%        100.0%        100.0%        100.0%        100.0%        100.0%        100.0%
                                 =========     =========     =========     =========     =========     =========     =========
</TABLE>
 
<TABLE>
<CAPTION>
                                        APRIL 30,                                        JULY 31,
                                 -----------------------     -----------------------------------------------------------------
                                   1995          1994          1994          1993          1992          1991          1990
                                 ---------     ---------     ---------     ---------     ---------     ---------     ---------
                                                                    (DOLLARS IN THOUSANDS)
<S>                              <C>           <C>           <C>           <C>           <C>           <C>           <C>
 
BALANCE SHEET DATA:
Working capital................  $  28,374     $  23,568     $  18,236     $  12,145     $   5,031     $  18,658     $  11,608
Total assets...................    290,433       266,390       281,814       249,807       245,462       212,095       149,503
Long-term debt (less current
  maturities)..................     68,832        74,440        68,840        74,448        80,056        80,164        34,136
Stockholders' equity...........     76,299        66,134        64,772        46,478        29,505        29,811        21,371
</TABLE>
 
- ---------------
 
(1) EBITDA is defined as earnings before interest, taxes, depreciation and
    amortization and is presented herein because it is commonly used to evaluate
    a company's ability to service and/or to incur debt or to fund capital
    expenditures. EBITDA should not be considered in isolation or as a
    substitute for operating income, cash flows from operating activities and
    other consolidated income or cash flow data prepared in accordance with
    generally accepted accounting principles or as a measure of the Company's
    profitability or liquidity.
 
(2) Barrels per calendar day of refined products produced from crude oil and
    other raw materials.
 
(3) Refinery production, crude charge and utilization rates were reduced as a
    result of a scheduled four-week turnaround for major maintenance at the
    Navajo Refinery.
 
(4) Barrels per day of crude oil processed.
 
(5) Crude charge divided by crude capacity.
 
(6) Includes cost of refined products purchased for resale.
 
(7) Includes refined products purchased for resale representing 2.5%, 3.7%,
    3.9%, 3.2%, 0.7%, 0.7% and 0.3%, respectively, of the total sales volume for
    the periods shown in the table above.
 
                                       16
<PAGE>   18
 
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS
                     OF OPERATIONS AND FINANCIAL CONDITION
 
OVERVIEW
 
     The Company's operating results depend largely on the spread, or margin,
between prices paid by the market for refined petroleum products and prices paid
by the Company for crude oils and feedstocks. The Company's refining margins and
operating results have fluctuated, and will continue to fluctuate, due to
numerous factors, including changes in operating levels of other refineries in
the Company's marketing areas and in other areas of the United States, changes
in the differentials between sour and sweet crude oil prices on international
and U.S. markets, changes in the level of imported refined products and
variations in levels of demand for its principal products. Although an increase
or decrease in the price of crude oil generally results in a corresponding
increase or decrease in the price of refined products, changes in the prices of
refined products generally lag behind upward and downward changes in crude oil
prices. As a result, a rapid and significant increase in the market price for
crude oil could have an adverse impact on refining margins. The Company's future
results of operations will continue to be affected by these factors. Future
margins, results of operations and earnings per share could also be affected by
other factors beyond the Company's control, such as changes in, or the enactment
of, environmental or other regulations, which could require substantial
expenditures without necessarily increasing capacity or operating efficiency.
 
     The Company's results of operations experience some seasonal fluctuations,
with demand for gasoline and asphalt products historically being stronger from
March through October, which are the key "driving" and road construction months,
than during the rest of the year. In addition, the Company's refineries are
subject to preventive maintenance turnarounds scheduled at two- or three-year
intervals, during which all or a portion of the facilities are shut down. As a
result, the Company's operating results during the periods and full fiscal years
when turnarounds occur typically will be below the Company's results for the
comparable prior year periods. In addition, in part because the Navajo and
Montana Refineries serve markets with different supply and demand relationships,
the refineries' operating results do not always increase or decrease in tandem.
Consequently, there have been periods (such as fiscal 1994 and 1993) when MRC's
results of operations have contributed more to the Company's overall results of
operations than management ordinarily would expect given the relative size of
the Navajo and Montana Refineries.
 
RESULTS OF OPERATIONS
 
  Nine Months ended April 30, 1995 Versus Nine Months ended April 30, 1994
 
     For the nine months ended April 30, 1995, net income was $13.6 million,
which included a $5.7 million contribution in the first quarter from the
cumulative effect of a change in accounting for turnarounds relating to prior
periods, compared to $21.3 million for the same period of fiscal 1994. Effective
August 1, 1994, the Company changed its method of accounting for turnaround
costs. Turnarounds consist of preventive maintenance on major processing units
as well as the shutdown and restart of all units, and generally are scheduled at
two- to three-year intervals. Previously, the Company estimated the costs of the
next scheduled turnaround and ratably accrued the related expenses prior to the
actual turnaround. To provide for a better matching of turnaround costs with
revenues, the Company changed its accounting method for turnaround costs to one
that results in the amortization of costs incurred over the period until the
next scheduled turnaround. The amortization of turnaround costs is recorded in
depreciation, depletion and amortization expense, whereas previously the
expenses accrued prior to the turnaround were recorded in cost of sales as an
operating expense. The increase in the current year in depreciation expense is
primarily the result of this change in accounting. The cumulative effect of this
accounting change was to increase net income in the current year by $5.7
million. Excluding the cumulative effect of the accounting change, the new
method of accounting for turnaround costs increased net income for the first
nine months of fiscal 1995 by $1.0 million to $7.9 million. If the accounting
change for turnaround costs had been retroactively applied, pro forma net income
for the nine months ended April 30, 1994 would have increased by $1.2 million to
$22.4 million and pro forma net income for the full 1994 fiscal year would have
increased by $1.3 million to $22.0 million.
 
                                       17
<PAGE>   19
 
     Excluding the effects of the change in accounting for turnarounds, the
$13.4 million decrease in net income for the first nine months of 1995 compared
to the prior year period is due primarily to a 26% reduction in gross margins
per barrel, offset partially by an 8% increase in volumes sold. Gross margins
for the current year were less than in the comparable prior year period because
crude oil costs per barrel increased 18% over the prior year, while product
prices per barrel increased only 5%. Gross margins per barrel at the Montana
Refinery were 34% below the comparable prior year period because product prices
per barrel increased 1% over the prior year levels while crude oil costs per
barrel increased 27%; gross margins were weakest in the latter part of the
second quarter and the early part of the third quarter of 1995. In addition,
gross margins per barrel at the Navajo Refinery in the third quarter of 1995
were approximately 32% below the comparable prior year period, which was the
primary reason for the $400,000 loss for the third quarter. Revenues for the
nine months ended April 30, 1995 were 14% higher than in the comparable prior
year period due to an 8% increase in sales volumes in the current year period
and 5% higher product prices per barrel in the first nine months of 1995
compared to the 1994 period. The prior year's sales volumes were adversely
affected by the scheduled maintenance turnaround at the Navajo Refinery from
September to November 1993.
 
  1994 Versus 1993
 
     Net income for the year ended July 31, 1994 was $20.7 million compared to
$19.9 million before an accounting change in the 1993 fiscal year. In the 1993
fiscal year, the Company adopted Statement of Financial Accounting Standards No.
109, "Accounting for Income Taxes" ("SFAS 109"), which amended the accounting
for income taxes from the deferral method to the liability method. The
cumulative effect of this change in accounting was to decrease net income by
$1.0 million to $19.0 million for the year ended July 31, 1993. Other than the
cumulative effect of the adjustment, the effect of the change on income for the
year ended July 31, 1993 was not material.
 
     While gross margins per barrel for the 1994 fiscal year as a whole improved
11% over the levels of the prior year, the 1994 year's margins per barrel were
adversely affected by Navajo's refined product margins per barrel in the fourth
quarter of 1994, which decreased 43% from the same period during 1993 because
product prices per barrel fell 9% in the fourth quarter of 1994 while crude oil
costs per barrel rose 3% in the same period. MRC had a third consecutive record
earnings year in fiscal 1994 because its gross margins were positively affected
by favorable prices for crude oil and other feedstocks. Notwithstanding the
Company's higher gross margins, as a whole, for 1994 compared to 1993, net sales
for the 1994 fiscal year decreased 13% from the prior year's levels as the
result of a 10% decrease in product prices per barrel and a 3% decline in sales
volume for the year caused primarily by a scheduled major maintenance turnaround
of the Navajo Refinery. Under the prior accounting method, a charge of $2.9
million was recorded in the fourth quarter of fiscal 1993 to reflect an increase
in the estimate for the costs to be incurred in the turnaround, and an
additional $1.5 million in excess of the revised accrual at July 31, 1993 was
included as an expense with respect to the scheduled turnaround in the 1994
year's second quarter. Increases in other operating expense and in exploration
expenses, including dry holes, further reduced income in 1994.
 
     Pre-tax income in 1993 was improved by $4 million relating to the
settlement of litigation with a common carrier pipeline and was reduced by a $2
million charge relating to an enforcement action brought by the DOJ alleging
that Navajo, beginning in September 1990 and continuing until the present,
violated and continues to violate the RCRA and implementing regulations by
treating, storing and disposing of certain hazardous wastes without required
authorization and without compliance with regulatory requirements. See
"Financial Condition" below.
 
  1993 Versus 1992
 
     Net income for the year ended July 31, 1993 was $19.9 million before a $1.0
million accounting change related to the adoption of SFAS 109 as discussed
above, compared to $2.8 million in the prior year.
 
     Net income for the year ended July 31, 1993 improved substantially over the
prior year due to 20% and 22% increases in gross margins per barrel and sales
volumes, respectively. The increase in sales volume over the prior year resulted
from higher throughputs made possible by the refinery expansion completed in
 
                                       18
<PAGE>   20
 
December 1991 and the alleviation of product pipeline distribution constraints
in October 1992. Gross margins and sales volumes for the 1993 fiscal year also
may have been favorably affected by a temporary suspension of production during
most of the year by a refinery in the Company's principal market area. In
addition, MRC experienced a second consecutive record earnings year in fiscal
1993. Profitability in fiscal 1993 was reduced due to increases in operating
expenses, principally resulting from a charge taken in the fourth quarter of
$2.9 million to increase the estimate for the planned fall 1993 major
maintenance turnaround and increases in general and administrative expense and
depreciation, depletion and amortization expense, primarily attributable to the
refinery expansion. Net income in the fourth quarter of the 1993 fiscal year was
affected by pretax income of $4 million relating to a settlement of litigation
with a common carrier pipeline company and the $2 million pre-tax charge
established in connection with the DOJ litigation.
 
     Net income in the fourth quarter of fiscal 1992 was improved by the
elimination, as a consequence of the Company's acquisition of the remaining
interest in MRC, of a $2.6 million liability for deferred taxes that had been
reflected on the Company's financial statements.
 
FINANCIAL CONDITION
    
     Cash flows from operations during the nine months ended April 30, 1995
exceeded capital expenditures and dividends paid, resulting in a net increase in
cash and cash equivalents of $13.6 million. Cash flows from operations for
fiscal 1994 were slightly less than capital expenditures, debt payments and
dividends paid, resulting in a net decrease in cash and cash equivalents of $3.3
million. Working capital increased during the first nine months of 1995 by $10.1
million to $28.4 million at April 30, 1995. The Company's long-term debt
represented 49.4% of total capitalization at April 30, 1995 compared to 53.5% at
July 31, 1994. At April 30, 1995, the Company had $25 million of borrowing
capacity under the Credit Agreement, which is available for short term working
capital needs. The Company believes that these sources of funds, together with
future cash flows from operations, should provide sufficient resources,
financial strength and flexibility for the Company to satisfy its liquidity
needs, capital requirements (including requirements related to the identified
refinery enhancement projects for the Navajo Refinery) and debt service
obligations and to permit the payment of dividends for the foreseeable future.
     
     Net cash provided by operating activities amounted to $26.7 million in the
first nine months of fiscal 1995, compared to $27.9 million in the same period
of the prior year. The principal reason for the slight decrease in cash provided
from operations was the reduction in income before the accounting change, which
was almost offset by changes in working capital accounts. The change in the
method of accounting for turnaround costs had no effect on cash provided from
operations. Net cash provided by operating activities amounted to $27.7 million
in fiscal 1994, compared to $38.7 million in fiscal 1993 and $1.0 million in
fiscal 1992. The primary reason for the differences in cash provided from
operations during the three years ended July 31, 1994 was differences in
earnings, which were $20.7 million in fiscal 1994, $19.0 million in fiscal 1993
and $2.8 million in fiscal 1992. Additionally, significant amounts of funds were
required in both fiscal 1994 and fiscal 1992 to maintain working capital
accounts compared to the 1993 fiscal year.
 
     Cash flows used for investing activities (consisting solely of capital
expenditures) were $10.6 million in the first nine months of fiscal 1995,
compared to $18.5 million in the same period of the prior year. Cash flows used
for investing activities totalled $65.7 million over the last three full fiscal
years, $22.5 million in 1994, $20.1 million in 1993 and $23.1 million in 1992,
principally for capital expenditures. The expenditures in 1992 were primarily
for the final phases of the expansion of the Navajo Refinery's crude capacity
from 40,000 to 60,000 BPD. This expansion included the installation of a new
continuous catalytic regeneration reformer, the modification of the fluid
catalytic cracker, the expansion of the naphtha desulfurizer and the
installation of a new sulphur plant and alkylation unit. In fiscal 1993 and
1994, most of the funds expended were for refinery projects including diesel
desulfurization units at the Navajo and Montana Refineries in order to meet the
October 1993 requirements for lower sulphur content in diesel fuel. The Navajo
Refinery unit was completed in August 1993 and the Montana Refinery unit was
completed in December 1993.
 
   
     The Company currently plans to use approximately $15 million of its future
operating cash flow to pay for the identified capital improvement projects to
enhance the Navajo Refinery described under "Capital
    
 
                                       19
<PAGE>   21
 
   
Improvement Projects -- Identified Refinery Enhancement Projects." The Company's
results of operations will be affected by future operating margins and other
factors, some of which will be beyond its control. There can be no assurance
that the Company will have sufficient sources of funds to implement any or all
of these projects. Excluding the capital improvement projects described under
"Capital Improvement Projects," the Company has a $15 million capital budget for
fiscal 1995, of which $11 million is for refinery projects with the remaining $4
million for oil and gas exploration. Although there can be no assurances,
management considers the planned maintenance expenditures for 1995 of
approximately $8 million to be indicative of the level of capital spending that
will be necessary to maintain the Company's operations in the future. The
majority of the oil and gas budget will be used to fund the anticipated costs of
completion of production facilities for two offshore properties in which the
Company has an interest. Although the Company's capital expenditures budget
contemplates capitalizable costs associated with compliance with environmental
regulations, the regulations implementing recent amendments to the Clean Air Act
could have a substantial impact on the Company's future capital spending
requirements. Final regulations implementing these amendments have not yet been
promulgated; therefore the costs of complying with these regulations are not yet
determinable by the Company. In addition, the Company is unable to predict the
impact that new environmental rules and regulations or changes in
interpretations of existing laws and regulations might have on its capital
spending needs.
    
 
     Cash flows used for financing activities amounted to $2.5 million in the
first nine months of fiscal 1995, compared to $2.1 million in the same period of
the prior year; substantially all these amounts were for dividends. The next
principal payment of $5.6 million on the Company's Senior Notes is due in June
1995. Cash flows used for financing activities amounted to $8.5 million and
$13.4 million in fiscal 1994 and 1993, respectively, compared to cash flows
provided by financing activities of $6.3 million in fiscal 1992. Financing
activities over the last three years included the renewal of the Company's
Credit Agreement in July 1993, which provides for a total facility of $100
million, the full amount of which may be used to support letters of credit and
$25 million of which may be used for direct borrowings for short-term working
capital needs. The Company had $10.5 million of borrowings outstanding under its
Credit Agreement as of July 31, 1992, the full amount of which was repaid during
fiscal 1993. The Company's Credit Agreement will expire August 1, 1995; however,
the Company expects to renew the Credit Agreement on substantially the same
terms. The Company's first principal payment of $5.6 million on the Senior Notes
was made in June 1994. See Note 6 to the Consolidated Financial Statements for
the year ended July 31, 1994 included elsewhere herein for a summary of the
terms of the Senior Notes and the Credit Agreement, which could restrict the
Company's ability to pay dividends under certain circumstances.
    
     Diamond Shamrock, Inc., an independent refiner and marketer, is building a
420-mile, ten-inch refined products pipeline from its McKee refinery near Dumas,
Texas to El Paso, the Company's largest market. Diamond Shamrock has announced
that it expects to complete that pipeline, which will have an initial capacity
of 25,000 BPD, in October 1995, and that it intends to use its pipeline to
supply fuel to the El Paso, Arizona and northern Mexico markets. The Diamond
Shamrock pipeline could substantially increase the supply of products in the
Company's principal markets. In addition, in June 1995, an investor group
announced that it is negotiating to purchase an existing crude oil pipeline
running from West Texas to a refinery near Houston as part of the investor
group's plan to reverse the line and extend it for use in transporting refined
products from the Gulf Coast to El Paso. At times in the past, the common
carrier pipelines used by the Company to serve the Tucson and Phoenix markets
have been operated at or near their capacity. In addition, the common carrier
pipeline used by the Company to serve the Albuquerque market currently is
operating at or near capacity. As a result, the volume of refined products that
the Company and other shippers have been able to deliver to these markets at
times has been limited. In general, there is no assurance that the Company will
not experience future constraints on its ability to deliver its products through
common carrier pipelines or that any existing constraints will not worsen. In
particular, the flow of additional product into El Paso for shipment to Arizona,
either as a result of the new Diamond Shamrock pipeline or otherwise, could
result in the reoccurrence of such constraints. See "Business -- Navajo Refining
Company -- Markets and Competition."
     
     In July 1993, the DOJ, on behalf of the EPA, filed suit against Navajo
alleging that, beginning in September 1990 and continuing through the present,
Navajo has violated and continues to violate RCRA and
 
                                       20
<PAGE>   22
    
implementing regulations of the EPA by treating, storing and disposing of
certain hazardous wastes without compliance with regulatory requirements. The
Company believes that the parties are in the final stage of negotiating a
resolution of the litigation. If settled as anticipated, the Company would close
the existing evaporation ponds of its wastewater management system at a cost
believed to be substantially less than $1 million. The settlement also
contemplates that the Company would implement one of several alternatives to the
existing wastewater treatment system. Depending upon which approach were
utilized, the Company could incur total costs of approximately $3 million over
the next several years. The costs to implement an alternative wastewater
treatment system would be capitalized and amortized over the future useful life
of the resulting asset in accordance with generally accepted accounting
principles. The settlement with the DOJ also is expected to involve the payment
of a civil penalty of less than $2 million. In fiscal 1993, the Company recorded
a $2 million reserve for the litigation. See "Risk Factors -- Environmental
Regulation."
     
                                       21
<PAGE>   23
 
                                    BUSINESS
OVERVIEW
 
     The Company is an independent refiner of petroleum and petroleum
derivatives and produces high value light products such as gasoline, diesel fuel
and jet fuel for sale primarily in the southwestern United States and northern
Mexico. The Company owns a high-conversion petroleum refinery in Artesia, New
Mexico, which it operates in conjunction with crude, vacuum distillation and
other facilities situated 65 miles away in Lovington, New Mexico. The Navajo
Refinery has a crude capacity of 60,000 BPD and can process a variety of high
sulphur sour crude oils. For the last three fiscal years, sour crude oils have
represented approximately 85% of the crude oils processed by the Navajo
Refinery. The Navajo Refinery's processing capabilities enable management to
vary its crude supply mix to take advantage of changes in raw materials prices
and to respond to fluctuations in the availability of crude oil supplies. The
Navajo Refinery converts approximately 86% of its raw materials throughput into
high value light products. For fiscal 1994, including barrels purchased for
resale, gasoline, diesel fuel and jet fuel represented 56.5%, 19.7% and 11.1%,
respectively, of Navajo's sales volume. For the last three fiscal years,
excluding downtime for scheduled maintenance and turnarounds, the Navajo
Refinery has operated at an average annual crude capacity utilization rate of
approximately 93%.
 
     The Artesia facility is located on a 300-acre site and has fully integrated
crude, FCC, vacuum distillation, alkylation, hydrodesulfurization and reforming
units, and approximately 1.5 million barrels of feedstock and product tank
storage. The Lovington facility is operated as an integrated component of the
Navajo Refinery and refines crude oil into intermediate products, which are
transported, primarily via a Company-owned pipeline, to the Artesia facility for
further processing. Navajo's assets also include a 500-mile crude oil gathering
pipeline system, 30 crude oil and product tank trucks, three refined products
pipelines and product storage at terminals in Tucson, Albuquerque, Artesia and
El Paso in which the Company has 50% or greater interests.
 
     The Company also owns a 7,000 BPD petroleum refinery near Great Falls,
Montana, which can process a range of crude oils and which serves primarily the
State of Montana. For fiscal 1994, including barrels purchased for resale,
gasoline, diesel fuel, asphalt and jet fuels, represented 38.6%, 24.3%, 18.6%
and 15.7% of MRC's sales volume. For the last three fiscal years, excluding
downtime for scheduled maintenance and turnarounds, the Montana Refinery has
operated at an average annual crude capacity utilization rate of approximately
94%.
 
     In addition to its refining operations, the Company also conducts a
small-scale oil and gas exploration and production program.
 
BUSINESS STRENGTHS
 
     Despite fluctuating industry conditions, the Company, which was
incorporated in 1947 and acquired the Navajo Refinery in 1969, has generated
positive net income and cash flow from operations for each of the past 24 years.
The Company had net income and cash from operating activities of $24.0 million
and $33.6 million, respectively, for fiscal 1990, $11.7 million and $27.9
million for fiscal 1991, $2.8 million and $1.0 million for fiscal 1992, $19.0
million and $38.7 million for fiscal 1993, and $20.7 million and $27.7 million
for fiscal 1994. The Company believes that it has certain business strengths
that have contributed to its history of profitable operations. Among those
strengths are the following:
 
     - Geographic location/attractive markets. The Navajo Refinery primarily
      serves the growing southwestern United States market, including El Paso,
      Albuquerque, Phoenix and Tucson, which generally has favorable supply and
      demand characteristics compared to Gulf Coast markets, and the northern
      Mexico market, which is expected to experience demand growth over the next
      several years. According to data compiled by the United States Bureau of
      the Census, from April 1, 1990 to July 1, 1993, the population of the
      Navajo Refinery's principal market area in the U.S. (Arizona, New Mexico
      and El Paso) grew at a compound annual rate of 2.2%, compared to a
      nationwide compound annual growth rate of 1.1% during that period. From
      April 1, 1980 to July 1, 1993, this area grew at a compound annual rate of
      2.5%, compared to a nationwide rate of 1.0%. The Montana Refinery serves
      primarily the
 
                                       22
<PAGE>   24
 
      State of Montana, which also historically has had relatively favorable
      supply and demand characteristics.
 
     - High conversion refinery. The Navajo Refinery converts approximately 86%
      of its raw materials throughput into high value light products from a
      variety of sour crudes and can vary the refined products it produces to
      respond to fluctuations in demand. The Navajo Refinery's processing
      facilities also enable management to vary the refinery's crude supply mix
      to take advantage of changes in raw materials prices and to respond to
      fluctuations in the availability of crude oil supplies. For the last three
      fiscal years, sour crude oils have represented approximately 85% of the
      crude oils processed by the Navajo Refinery.
 
     - Raw material supply. Located on the northwestern shelf of the Permian
      Basin, the Navajo Refinery has direct access to a historically reliable
      crude oil supply, which is transported to the refinery primarily through a
      500-mile, Company-owned crude oil pipeline gathering system and by crude
      oil tank trucks. The Company's crude oil pipelines connect to tankage
      facilities in New Mexico and Texas, and are connected to, or are located
      in proximity to, a number of common carrier crude oil pipelines. The
      Montana Refinery obtains most of its crude oil via a 93-mile,
      Company-owned pipeline which runs from near the Canadian border.
 
     - Distribution logistics. The Company distributes refined products from the
      Navajo Refinery to its principal markets primarily through (i) a
      Company-owned pipeline extending from Artesia to El Paso and (ii) a
      Company-owned pipeline extending from Artesia to Orla, Texas, and from
      there west to El Paso. Products can be shipped by pipeline from El Paso to
      Albuquerque via a products pipeline system owned by Chevron Pipeline
      Company and to Tucson and Phoenix via a products pipeline system owned by
      Santa Fe Pacific Pipeline. The Company also owns a segment of a products
      pipeline running from Orla to Odessa, Texas, which is currently inactive.
      The Company believes that the proximity of the Navajo Refinery to its
      principal markets and the refinery's products distribution network provide
      a transportation cost advantage over Gulf Coast and West Coast refineries
      in supplying its markets.
 
BUSINESS STRATEGY
 
     The Company's strategy has been, and continues to be, to optimize its
refinery operations to increase the proportion of high value products it
produces and to lower operating costs. As part of this strategy, the Company
completed a $63 million expansion of the Navajo Refinery in December 1991,
which, among other things, increased its refining capacity from 40,000 to 60,000
BPD. That expansion consisted principally of the addition of a new continuous
catalytic regeneration unit, the modification of the FCC unit, the expansion of
the naphtha desulfurizer and the installation of new sulphur and alkylation
units. The installation of new equipment and the modification and upgrading of
existing equipment as part of that expansion program increased the proportion of
sour crude oils that the Navajo Refinery can process and increased the
proportion of its throughput that can be converted into higher value products.
 
     The Company continues to evaluate improvements to its operating cost
structure, refineries and crude oil gathering and product distribution systems.
Management believes that certain enhancements and additions to the Navajo
Refinery should better position the Company to respond to competitive pressures
and to meet possible increases in demand for refined products. As part of its
strategy, management intends to spend approximately $15 million over an 18-month
period on identified capital enhancement projects at the Navajo Refinery. Those
projects involve upgrades to the FCC and alkylation units, the construction of
an isomerization unit and the installation of a new SHP unit. Management expects
these projects to increase the Navajo Refinery's total gasoline production and
to improve its ability to produce a greater proportion of "premium" (high
octane) gasoline. In addition, these enhancements and plant additions are
expected to improve management's flexibility to operate using different types of
crude oils and other raw materials and to provide a platform for further
refinery expansion, if appropriate, in the future. In addition, the Company is
evaluating a number of other possible capital improvement projects, including
(i) the redistribution of process activities between the Lovington and Artesia
facilities in order to realize potential operating and transportation cost
savings, (ii) other upgrades to improve the efficiency of the Navajo Refinery,
(iii) modifications to increase
 
                                       23
<PAGE>   25
 
product pipeline distribution capacity and (iv) product pipeline reconditioning
and construction to facilitate entry into new markets. See "Capital Improvement
Projects -- Other Projects Under Consideration."
 
NAVAJO REFINING COMPANY
 
  Facilities
 
     With the completion of a major expansion in December 1991, Navajo's
refining capacity increased from 40,000 to 60,000 BPD. The Navajo Refinery has
the ability to process a variety of sour crude oils and, as a result of the
expansion, has increased the proportion of throughput that can be converted into
high value light products (such as gasoline, diesel fuel and jet fuel). The
expansion has also increased internal high octane capabilities and has augmented
overall operating flexibility.
 
     The following table sets forth certain information concerning the
operations of Navajo during the last five fiscal years and during the nine-month
periods ending April 30, 1994 and 1995:
 
<TABLE>
<CAPTION>
                            NINE MONTHS ENDED
                                APRIL 30,                         YEARS ENDED JULY 31,
                            -----------------      --------------------------------------------------
                             1995       1994        1994        1993      1992      1991        1990
                            ------     ------      ------      ------    ------    ------      ------
<S>                         <C>        <C>         <C>         <C>       <C>       <C>         <C>
Refinery production
  (BPD)(1)................  62,200     56,400(2)   57,400(2)   58,600    48,900    38,800(2)   40,000
Crude charge (BPD)(3).....  59,527     52,531(2)   54,089(2)   55,488    45,363    37,663(2)   39,524
Refinery
  utilization(BPD)(4).....   99.2%      87.6%(2)    90.1%(2)    92.5%     87.8%     94.2%(2)    98.8%
Average per barrel:
  Net sales...............  $23.74     $22.39      $22.63      $25.39    $24.69    $29.89      $25.59
  Raw materials
     costs(5).............   19.10      16.35       17.20       20.26     20.53     24.67       19.83
                            ------     ------      ------      ------    ------    ------      ------
  Gross margin............  $ 4.64     $ 6.04      $ 5.43      $ 5.13    $ 4.16    $ 5.22      $ 5.76
                            ======     ======      ======      ======    ======    ======      ======
</TABLE>
 
- ---------------
 
(1) Barrels per calendar day of refined products produced from crude oil and
     other raw materials.
 
(2) Refinery production, crude charge and utilization rates were reduced as the
     result of a scheduled four-week turnaround for major maintenance.
 
(3) Barrels per day of crude oil processed.
 
(4) Crude charge divided by crude capacity.
 
(5) Includes cost of refined products purchased for resale.
 
     Navajo's Artesia facility has fully integrated crude, FCC, vacuum
distillation, alkylation, hydrodesulfurization and reforming units, and
approximately 1.5 million barrels of feedstock and product tank storage, as well
as other supporting units and office buildings at the site. The Artesia
facilities are operated in conjunction with integrated refining facilities
located in Lovington, New Mexico, approximately 65 miles east of Artesia. The
principal equipment at Lovington consists of a crude unit and an associated
vacuum unit. The Lovington facility processes crude oil into intermediate
products, which are transported to Artesia through a Company-owned eight-inch
pipeline or by tanker truck.
 
                                       24
<PAGE>   26
 
     The following table shows the major units of the Navajo Refinery and their
respective dates of construction or last major modification or upgrade:
 
<TABLE>
<CAPTION>
                                                                     YEAR OF COMPLETION OR
                               UNITS                             MOST RECENT MAJOR MODIFICATION
    -----------------------------------------------------------  ------------------------------
    <S>                                                          <C>
    Artesia Crude Distillation Unit............................               1981
    Artesia Vacuum Distillation Unit...........................               1981
    Lovington Crude Distillation Unit..........................               1991
    Lovington Vacuum Distillation Unit.........................               1991
    Diesel Hydrodesulfurization Unit...........................               1993
    Naptha/Kerosene Hydrodesulfurization Unit..................               1991
    Fluid Catalytic Cracking Unit*.............................               1991
    Alkylation Unit*...........................................               1991
    Catalytic Reformer Unit....................................               1991
</TABLE>
 
- ---------------
* To be upgraded as part of the capital improvements projects described under
  "Capital Improvement Projects -- Identified Refinery Enhancement Projects."
 
     The Company's 500 miles of crude gathering pipelines lead to the Artesia
and Lovington facilities from various points in southeastern New Mexico. The
Company distributes refined products from the Navajo Refinery to its principal
markets primarily through (i) a Company-owned pipeline which extends from
Artesia to El Paso and (ii) a Company owned pipeline extending from Artesia to
Orla, Texas and from there west to El Paso. The Company has product storage at
terminals in Tucson, Albuquerque, Artesia and El Paso in which the Company has
50% or greater interests. The Company also owns a segment of products pipeline
running from Orla to Odessa, Texas, which is currently inactive. The Odessa
pipeline segment could be utilized following certain capital expenditures for
reconditioning.
 
  Markets and Competition
 
     The Navajo Refinery primarily serves the growing southwestern United States
market, including El Paso, Albuquerque, Phoenix and Tucson, and the northern
Mexico market. The Company's products are shipped by pipeline from El Paso to
Albuquerque via a products pipeline system owned by Chevron Pipeline Company and
to Tucson and Phoenix via a products pipeline system owned by Santa Fe Pacific
Pipeline. The map below illustrates the Company's distribution system to its
major markets. Access to the Company's markets by Gulf Coast refiners is limited
primarily by the lack of available products pipelines.


                                    [MAP]

 
                                      25
<PAGE>   27
 
     Growth in the Company's principal markets can be illustrated by the
increasing gasoline consumption in the southwestern United States during the
five years ended December 31, 1993, as shown in the following table:
                  GASOLINE CONSUMPTION IN SOUTHWESTERN STATES
 
<TABLE>
<CAPTION>
                                      1993         1992         1991         1990         1989
                                    ---------    ---------    ---------    ---------    ---------
    <S>                             <C>          <C>          <C>          <C>          <C>
    Barrels per Day:
      Arizona.....................    119,925      116,840      113,433      110,524      113,800
      New Mexico..................     56,866       54,688       53,518       52,387       52,898
      Texas*......................    578,414      564,309      554,748      576,802      569,204
              Total U.S...........  7,606,918    7,471,633    7,322,877    7,453,498    7,480,858
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                          COMPOUND
                                                                                           ANNUAL
                                                                                           GROWTH
                                              1992-93    1991-92    1990-91    1989-90      RATE
                                              -------    -------    -------    -------    --------
    <S>                                       <C>        <C>        <C>        <C>        <C>
    Percentage Annual Change:
      Arizona...............................     2.6%       3.0%        2.6%      (2.9)%     1.3%
      New Mexico............................     4.0        2.2         2.2       (1.0)      1.8
      Texas*................................     2.5        1.7        (3.8)       1.3       0.4
              Total U.S.....................     1.8        2.0        (1.8)      (0.4)      0.4
</TABLE>
 
- ---------------
* Principal market served is El Paso.
 
Source: U.S. Department of Transportation.
 
   
     The petroleum refining business is highly competitive. Among the Company's
competitors are some of the world's largest integrated petroleum companies,
which have their own crude oil supplies, distribution and marketing systems. The
Company competes with independent refiners as well. Competition in particular
geographic markets is affected primarily by the amounts of refined products
produced by refineries located in such markets and by the availability of
refined products and the cost of transportation to such markets from refineries
located outside those markets. Diamond Shamrock, Inc., an independent refiner
and marketer, is building a 420-mile, ten-inch refined products pipeline from
its McKee refinery near Dumas, Texas to El Paso, the Company's largest market.
Diamond Shamrock has announced that it expects to complete that pipeline, which
will have an initial capacity of 25,000 BPD, in October 1995, and that it
intends to use its pipeline to supply fuel to the El Paso, Arizona and northern
Mexico markets. The Diamond Shamrock pipeline could substantially increase the
supply of refined products in the Company's principal markets. In addition,
there is excess pipeline capacity from the West Coast into the Company's Arizona
markets. There can be no assurance that West Coast refiners will not seek to
increase shipments of refined products into the Company's markets or that other
industry participants will not seek to deliver their products to the Company's
markets through existing pipelines, new pipelines or otherwise. In addition, in
June 1995, an investor group announced that it is negotiating to purchase an
existing crude oil pipeline running from West Texas to a refinery near Houston
as part of the investor group's plan to reverse the line and extend it for use
in transporting refined products from the Gulf Coast to El Paso. An increased
supply of products in the Company's markets could adversely affect its sales
volume and the prices it can obtain for its products.
    
 
     At times in the past, the common carrier pipelines used by the Company to
serve the Arizona markets have been operated at or near their capacity and have
been subject to periods of proration. In July 1993, the Company entered into a
settlement agreement regarding that pipeline system. Under the agreement, the
occurrence of certain defined events will require increases in the capacity of
the pipeline. It is anticipated that this settlement lessens, at least in the
foreseeable future, the likelihood of prolonged future constraints on the
movement of the Company's products into Arizona. In addition, the common carrier
pipeline used by the Company to serve the Albuquerque market currently is
operating at or near capacity. As a result, the volume of refined products that
the Company and other shippers have been able to deliver to this market at times
has been limited. In general, no assurances can be given that the Company will
not experience future constraints on its ability to deliver its products through
common carrier pipelines or that any existing constraints will not
 
                                       26
<PAGE>   28
worsen. In particular, the flow of additional product into El Paso for shipment
to Arizona, either as a result of the new Diamond Shamrock pipeline or
otherwise, could result in the reoccurrence of such constraints.
 
  Crude Oil and Feedstock Supplies
 
     The Navajo Refinery is situated near the Permian Basin in an area with
historically abundant crude supplies. The Company purchases crude oil from
producers in nearby southeastern New Mexico and west Texas, from major oil
companies and on the spot market. Crude oil is gathered through the Company's
pipelines and tank trucks and through third party crude oil pipeline systems.
Crude oil acquired in locations distant from the refinery is exchanged for crude
oil that is transportable to the refinery. In 1993, the Company reactivated a
subsidiary, Navajo Crude Oil Marketing Company, to facilitate the purchase of
crude oil from leases in west Texas and New Mexico.
 
  Principal Products and Customers
 
     The Navajo Refinery converts approximately 86% of its raw materials
throughput into high value light products. Set forth below is certain
information regarding the principal products of Navajo during the last five
fiscal years and during the nine-month periods ending April 30, 1994 and 1995:
 
<TABLE>
<CAPTION>
              NINE MONTHS ENDED
                  APRIL 30,                                                 YEARS ENDED JULY 31,
       --------------------------------    --------------------------------------------------------------------------------------
            1995              1994              1994              1993              1992              1991              1990
       --------------    --------------    --------------    --------------    --------------    --------------    --------------
        BPD       %       BPD       %       BPD       %       BPD       %       BPD       %       BPD       %       BPD       %
       ------   -----    ------   -----    ------   -----    ------   -----    ------   -----    ------   -----    ------   -----
<S>    <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>
Product
  sales
  (percent
  of
total
sales
volumes)(1):
  Gasolines... 37,600  59.5% 32,700  56.6% 33,200    56.5%   32,600    53.4%   24,800    50.3%   18,500    47.7%   19,700    48.5%
  Diesel
fuels... 11,800  18.7    11,700    20.2    11,600    19.7    14,500    23.7    10,300    20.9     7,600    19.6     7,400    18.2
  Jet
  fuels...  6,900  10.9   6,100    10.6     6,500    11.1     5,900     9.7     6,200    12.6     7,200    18.5     8,400    20.7
  Asphalt...  4,000   6.3  4,700    8.1     4,900     8.3     5,500     9.0     5,000    10.1     2,900     7.5     2,500     6.2
  LPG
  and
  other...  2,900   4.6   2,600     4.5     2,600     4.4     2,600     4.2     3,000     6.1     2,600     6.7     2,600     6.4
       ------   -----    ------   -----    ------   -----    ------   -----    ------   -----    ------   -----    ------   -----
       63,200   100.0%   57,800   100.0%   58,800   100.0%   61,100   100.0%   49,300   100.0%   38,800   100.0%   40,600   100.0%
       ======   =====    ======   =====    ======   =====    ======   =====    ======   =====    ======   =====    ======   =====
</TABLE>
 
- ---------------
 
(1) Includes refined products purchased for resale representing 1.9%, 3.8%,
    4.0%, 3.2%, 0.4%, 0.5% and 0.2%, respectively, of total sales volume for the
    periods shown in the table above.
 
     Light products are shipped by product pipelines or are made available at
distant points by exchanges with others. Light products are also available to
customers through truck loading facilities at the refineries and at terminals.
The demand for the Company's gasoline and asphalt products has historically been
stronger from March through October, which are the peak "driving" and road
construction months, than during the rest of the year.
 
     The Company's principal customers for gasoline include other refiners,
convenience store chains, independent marketers, an affiliate of PEMEX (the
government-owned energy company of Mexico) and retailers. Navajo's gasoline is
marketed in the southwestern United States, including the metropolitan areas of
El Paso, Phoenix, Albuquerque, and Tucson, and in portions of northern Mexico.
Diesel fuel is sold to other refiners, wholesalers, independent dealers and
railroads. Jet fuel is sold primarily for military use. Military jet fuel is
sold to the Defense Fuel Supply Center (the "DFSC") of the Defense Logistics
Agency under a series of one-year contracts that can vary significantly from
year to year. Navajo sold approximately 7,000 BPD of jet fuel to the DFSC in its
1994 fiscal year and has a contract to supply 8,100 BPD to the DFSC for the year
ending September 30, 1995. Asphalt is sold to contractors and government
authorities for highway construction and maintenance. Carbon black oil is sold
for further processing, and LPGs are sold to petrochemical plants and are used
as fuel in refinery operations.
 
     Approximately 12% of the Company's revenues for the first nine months of
fiscal 1995 and 12% of revenues for fiscal 1994 resulted from the sale of
military jet fuel to the United States government. Although there can be no
assurance that the Company will be awarded such contracts in the future, the
Company has had a supply contract with the United States government for each of
the last 26 years. Approximately 7% of the Company's revenues for the first nine
months of fiscal 1995 and 11% of revenues for fiscal 1994 resulted
 
                                       27

<PAGE>   29
 
from the sale of gasoline to an affiliate of PEMEX. Those sales were made under
a contract that expires in mid-1997. The loss of the Company's supply contract
with the United States government or with PEMEX could have a material adverse
effect on the Company's results of operations.
 
CAPITAL IMPROVEMENT PROJECTS
 
  Identified Refinery Enhancement Projects
 
   
     As part of its efforts to improve operating efficiencies, management
currently intends to enhance the Navajo Refinery by upgrading the alkylation and
FCC units, constructing an isomerization unit and installing a new SHP unit.
These projects are intended to improve the Navajo Refinery's ability to produce
a greater proportion of higher yielding products, principally "premium" (high
octane) gasolines, and to enhance management's flexibility to choose among
different types of crude oils and other raw materials in response to changing
prices of supplies. The Company currently estimates that the cost of these
projects will be approximately $15 million and expects to implement them over an
18-month period with cash flows from operating activity. The Company's results
of operations will be affected by future operating margins and other factors,
some of which will be beyond its control.
    
 
     The modified FCC unit is expected to permit the refining of heavier
feedstocks than are currently processed, which would enhance the Company's
ability to take advantage of price differentials between sweet and sour crude
oils. Similarly, the isomerization unit is expected to provide the Company with
the ability to upgrade additional quantities of lower priced natural gasoline
into finished gasoline. It is anticipated that the SHP unit and the upgraded
alkylation unit will increase the refinery's production capacity for alkylate, a
high octane gasoline blendstock, which also would contribute to the refinery's
improved ability to produce premium unleaded gasolines and to upgrade natural
gasoline into a refined product. Consequently, the Company expects that the
enhancements to the Navajo Refinery will provide management with additional
flexibility in managing the refinery's crude oil and other raw materials
supplies. Further, based on industry studies concerning new environmental
regulations promulgated by the California Air Resources Board and scheduled to
go into effect in California in 1996, it appears that California refiners may
require increased supplies of alkylates to produce the cleaner burning gasolines
called for by the new regulations. In that event, the Navajo Refinery's
increased production of alkylate could be made available for sale to California
refineries.
 
     The Company expects to commence its identified refinery enhancement
projects promptly. However, management intends to bring the new and upgraded
equipment on-line in a manner that will minimize disruption to the Navajo
Refinery's operations. Consequently, management does not expect to make the FCC
modifications until the scheduled fall 1996 maintenance turnaround of the
refinery.
 
  Other Capital Projects
 
   
     The Company is currently evaluating certain other enhancements and
additions to the Navajo Refinery and the related supply and distribution systems
to better position it to respond to competitive pressures and to meet possible
increases in demand for refined products. Future capital projects that are being
considered include (i) the redistribution of process activities between the
Lovington and Artesia facilities in order to realize potential operating and
transportation cost savings, (ii) other upgrades to improve the efficiency of
the Navajo Refinery, (iii) modifications to increase product pipeline
distribution capacity and (iv) product pipeline reconditioning and construction
to facilitate entry into new markets. To the extent available, cash flows from
operating activities could be used to finance the cost of these projects,
although the Company may require additional funds if a decision were made to
implement most or all of these projects. There can be no assurance that the
Company will have sufficient sources of funds to implement any or all of these
other capital projects.
    
 
MONTANA REFINING COMPANY
 
     MRC owns a 7,000 BPD petroleum refinery near Great Falls, Montana, which
can process a range of crude oils and which serves primarily the State of
Montana. For the last three fiscal years, excluding downtime
 
                                       28
<PAGE>   30
 
for scheduled maintenance and turnarounds, the Montana Refinery has operated at
an average annual crude capacity utilization rate of approximately 94%.
 
     The following table sets forth certain information regarding the principal
products of MRC during the last five years and during the nine-month periods
ending April 30, 1994 and 1995:
 
<TABLE>
<CAPTION>
                    NINE MONTHS ENDED
                        APRIL 30,                                             YEARS ENDED JULY 31,
              ------------------------------    ---------------------------------------------------------------------------------
                  1995             1994             1994             1993             1992             1991             1990
              -------------    -------------    -------------    -------------    -------------    -------------    -------------
               BPD      %       BPD      %       BPD      %       BPD      %       BPD      %       BPD      %       BPD      %
              -----   -----    -----   -----    -----   -----    -----   -----    -----   -----    -----   -----    -----   -----
<S>           <C>     <C>      <C>     <C>      <C>     <C>      <C>     <C>      <C>     <C>      <C>     <C>      <C>     <C>
Product
  sales
  (percent
  of
  total
  sales
volumes)(1):
Gasolines...  2,300    36.5%   2,700    40.3%   2,700    38.6%   2,700    39.1%   2,800    42.4%   2,400    40.0%   2,400    36.4%
  Diesel
    fuels...  1,700    27.0    1,700    25.4    1,700    24.3    1,600    23.2    1,500    22.7    1,400    23.4    1,400    21.2
  Jet
    fuels...    900    14.3    1,200    17.9    1,100    15.7    1,200    17.4    1,100    16.7      900    15.0    1,200    18.2
  Asphalt...  1,100    17.4      900    13.4    1,300    18.6    1,200    17.4    1,100    16.7    1,100    18.3    1,300    19.7
  LPG and
    other...    300     4.8      200     3.0      200     2.8      200     2.9      100     1.5      200     3.3      300     4.5
              -----   -----    -----   -----    -----   -----    -----   -----    -----   -----    -----   -----    -----   -----
       Total  6,300   100.0%   6,700   100.0%   7,000   100.0%   6,900   100.0%   6,600   100.0%   6,000   100.0%   6,600   100.0%
              =====   =====    =====   =====    =====   =====    =====   =====    =====   =====    =====   =====    =====   =====
</TABLE>
 
- ---------------
 
(1) Includes refined products purchased for resale representing 9.0%, 3.1%,
     3.4%, 3.2%, 2.6%, 2.1% and 1.1%, respectively, of total sales volume for
     the periods shown in the table above.
 
     The Montana Refinery obtains its supply of crude oils primarily from
suppliers in Canada via a 93-mile, Company-owned pipeline, which runs from near
the Canadian border. The Montana Refinery's principal markets include Great
Falls, Helena, Bozeman and Billings, Montana. MRC competes principally with
three other Montana refineries.
 
JET FUEL TERMINAL
 
     The Company owns and operates a 120,000 barrel capacity jet fuel terminal
near Mountain Home, Idaho, which serves as a terminalling facility for jet fuel
sold by unaffiliated producers to the Mountain Home United States Air Force
Base.
 
NAVAJO WESTERN ASPHALT COMPANY
 
     Navajo Western Asphalt Company, a wholly-owned subsidiary of the Company,
operates an asphalt marketing facility near Phoenix. The Company has recently
completed construction of asphalt processing and storage facilities that should
allow it to expand this operation. In addition to serving as a marketing outlet
for asphalt produced by Navajo at the Lovington facility, Navajo Western markets
asphalt for third parties.
 
EXPLORATION AND PRODUCTION
 
     The Company contracts with two independent oil and gas consulting groups
that identify oil and gas exploration and production projects for the Company.
The scope of this activity is presently modest relative to the Company's
refining operations. For fiscal 1995, the Company has budgeted approximately $4
million for capital expenditures related to oil and gas exploration activities.
The majority of that budget will be used to fund the anticipated costs to
complete production facilities at two offshore properties in which the Company
has an interest.
 
EMPLOYEES AND LABOR RELATIONS
 
     As of April 30, 1995, the Company had approximately 540 employees, of whom
451 were employed by the Navajo Refinery and 73 were employed at the Montana
Refinery. Of its employees, 216 are covered by collective bargaining agreements
("covered employees"). Contracts relating to the covered employees at all
facilities were negotiated during 1993 and will expire in 1996. The Company
considers its employee relations to be good.
 
                                       29
<PAGE>   31
 
REGULATION
 
     Refinery operations are subject to federal, state and local laws regulating
the discharge of matter into the environment or otherwise relating to the
protection of the environment. Over the years, there have been and continue to
be ongoing communications, including notices of violations, and discussions
about environmental matters, between the Company and federal and state
authorities, some of which have resulted in changes in operating procedures and
certain capital expenditures by the Company. Compliance with applicable
environmental laws and regulations will continue to have an impact on the
Company's operations and capital requirements. For example, the final form of
the regulations implementing recent amendments to the Clean Air Act could have a
substantial impact on the future capital spending requirements of the Company
and the refining industry as a whole.
 
     The EPA has promulgated regulations which substantially reduced the
allowable sulfur content of diesel fuel for sales starting in October 1993. In
fiscal 1994, the Company completed projects which allow Navajo and MRC to meet
this new standard.
 
     Effective January 1, 1995, certain cities in the country were required to
use only reformulated gasoline ("RFG"), a cleaner burning fuel. While none of
the Company's principal markets presently require RFG, this requirement could be
implemented over time. Further, other requirements of the Clean Air Act could
cause the Company to be required to expend substantial amounts for compliance at
its refineries. Expenditures in connection with Clean Air Act at the Montana
Refinery could be proportionally larger than similar expenditures anticipated
for the Navajo Refinery. However, the specifics of these requirements and their
attendant costs are not presently determinable.
 
     The Company is and has been the subject of various state, federal and
private proceedings relating to environmental regulations, conditions and
inquiries. The most significant of these is the enforcement action which has
been brought by the DOJ, on behalf of the EPA, and which is discussed in
"Management's Discussion and Analysis of Results of Operations and Financial
Condition -- Financial Condition" and in Note 12 to the Consolidated Financial
Statements for the year ended July 31, 1994 included elsewhere herein. In
addition to the expenditures that will likely be incurred in connection with a
resolution of this matter, current or future environmental regulations likely
will require additional remediation or other expenditures at the Navajo and
Montana Refineries. The extent of any such expenditures cannot be presently
determined.
 
     The Company's operations are also subject to various laws and regulations
relating to occupational health and safety. The Company maintains safety,
training and maintenance programs as part of its ongoing efforts to ensure
compliance with applicable laws and regulations. Moreover, while recently
enacted comprehensive health and safety legislation has required, and will
continue to require, substantial expenditures and modifications of procedures,
the Company believes it is taking the appropriate steps to ensure compliance.
 
     Notwithstanding the Company's efforts, following an eight-month series of
inspections at MRC, the Occupational Safety and Health Administration recently
issued numerous citations alleging a variety of matters of noncompliance. MRC
has contested all citations and it cannot presently determine the extent of any
fines and related costs for which it will ultimately be responsible. The parties
have recently been engaged in substantive settlement discussions; however, no
assurance can be given that a settlement will ultimately be reached.
 
INSURANCE
 
     The Company's operations (including its limited exploration and production
activities) are subject to normal business hazards, including fire, explosion
and weather-related perils. The Company maintains various insurance coverages,
including business interruption insurance, subject to certain deductibles. The
Company is not fully insured against those risks that are not fully insurable or
for which coverage is unavailable or premium costs are prohibitive.
 
LEGAL PROCEEDINGS
 
     In July 1993, the DOJ, acting on behalf of the EPA, filed a complaint in
the United States District Court for the District of New Mexico alleging that
Navajo, beginning in September 1990 and continuing until the present, had
violated and continues to violate RCRA and implementing regulations of the EPA
by treating,
 
                                       30
<PAGE>   32
 
storing and disposing of certain hazardous wastes without necessary
authorization and without compliance with regulatory requirements. The complaint
seeks a court order directing Navajo to comply with these regulatory standards
and civil penalties for the alleged non-compliance. The Company believes that
the parties are in the final stages of negotiations that should resolve the
litigation. Based on these negotiations, the Company would close the existing
evaporation ponds of its wastewater management system and implement an
alternative waste water treatment system. Any settlement with DOJ and EPA also
is expected to involve payment of a civil penalty. See "Risk
Factors -- Environmental Regulation," "Management's Discussion and Analysis of
Results of Operations and Financial Condition" and the Notes to the Consolidated
Financial Statements included elsewhere herein.
 
     The Company is a party to various other litigation and proceedings which it
believes, based on advice of counsel, will not have a material adverse impact on
its financial condition or results of operations.
 
                            MANAGEMENT AND DIRECTORS
 
EXECUTIVE OFFICERS
 
     The following table identifies the executive officers of the Company:
 
   
<TABLE>
<CAPTION>
                                                                                    EXECUTIVE
                NAME              AGE                   POSITION                  OFFICER SINCE
    ----------------------------  ---   ----------------------------------------  -------------
    <S>                           <C>   <C>                                       <C>
    Lamar Norsworthy............  48    Chairman of the Board, President and           1971
                                        Chief Executive Officer
    Jack P. Reid................  58    Executive Vice President, Refining and         1976
                                        Director
    William J. Gray.............  54    Senior Vice President, Marketing and           1976
                                        Supply
    Matthew P. Clifton..........  43    Senior Vice President                          1988
    David G. Blair..............  37    Vice President, Marketing Asphalt and          1994
                                        LPG
    Christopher L. Cella........  38    Vice President, General Counsel and            1990
                                        Secretary
    Karl N. Knapp...............  37    Vice President                                 1994
    John A. Knorr...............  44    Vice President, Crude Oil Supply and           1988
                                        Trading
    Virgil R. Langford..........  50    Vice President, Refining                       1989
    Mike Mirbagheri.............  56    Vice President, International Crude Oil        1982
                                        and Refined Products
    Henry A. Teichholz..........  52    Vice President, Treasurer and Controller       1984
    Gregory A. White............  37    Vice President, Marketing Light Oils           1994
</TABLE>
    
 
     In addition to the persons listed above, Kathryn Walker, age 44, was
appointed Controller of Navajo Refining Company in August 1993; prior thereto
she served from November 1985 as Assistant Controller of Navajo.
 
     All officers of the Company are elected annually to serve until their
successors have been elected. Mr. Cella joined the Company in 1990, having
previously been associated with the law firm of Gibson, Dunn & Crutcher since
1982. Mr. Clifton previously served as Vice President, Economics, Engineering
and Legal Affairs from 1988 to 1991. Mr. Knorr serves as the General Manager of
MRC. Mr. Langford became Navajo's refinery manager in January 1989 and had held
a similar position with MRC since 1985. Messrs. Blair, Knapp and White were
elected to their respective positions in September 1994. Mr. Blair has served as
Marketing Manager of Asphalt and LPG of Navajo since 1989 and previously held
various
 
                                       31
<PAGE>   33
 
marketing and supply positions. Mr. Knapp joined the Company in 1992 and served
as Director of Corporate Development from 1992 to 1994. Mr. Knapp was Director
of Corporate Planning for Northwest Airlines from 1991 to 1992, and prior to
that was associated with the management consulting firm of Monitor Company from
1987 to 1991. Mr. White has served as Marketing Manager of Light Oils of Navajo
since 1989 and previously held various marketing and supply positions.
 
DIRECTORS
 
     The following table identifies the directors of the Company:
 
<TABLE>
<CAPTION>
                                  NAME                            AGE      DIRECTOR SINCE
        --------------------------------------------------------  ---      --------------
        <S>                                                       <C>      <C>
        W. John Glancy..........................................  53            1975
        Marcus R. Hickerson.....................................  68            1960
        A.J. Losee..............................................  70            1978
        Thomas K. Matthews, II..................................  69            1978
        Robert G. McKenzie......................................  56            1992
        Lamar Norsworthy........................................  48            1967
        E.I. Parsons............................................  66            1976
        Jack P. Reid............................................  58            1977
</TABLE>
 
     W. John Glancy has been a partner in Weil, Gotshal & Manges since April
1995 and previously practiced in the Law Offices of W. John Glancy from January
1991. From 1988 to 1990, Mr. Glancy was a partner in the law firm of Hughes &
Luce.
 
     Marcus R. Hickerson has been a consultant to Centex Development Company
since 1987.
 
     A. J. Losee is a shareholder in the Artesia, New Mexico law firm of Losee,
Carson, Haas & Carroll, P.A., and has practiced law for more than 40 years.
 
     Thomas K. Matthews, II, is a financial consultant.
 
     Robert G. McKenzie has been Executive Vice President and Chief Operating
Officer of Brown Brothers Harriman Trust Company of Texas since January 1990.
Previously, he was Executive Vice President of NCNB Texas National Bank and of
First Republic Bank Dallas N.A. and Senior Vice President of RepublicBank
Dallas, N.A.
 
     Lamar Norsworthy is Chairman of the Board, Chief Executive Officer and
President of the Company.
 
     E. I. Parsons until his retirement in January 1992 was Vice Chairman of the
Board of the Company.
 
     Jack P. Reid is Executive Vice President, Refining, of the Company.
 
                                       32
<PAGE>   34
 
                              SELLING STOCKHOLDERS
 
     The following table sets forth the names of the Selling Stockholders, the
aggregate number of shares of Common Stock identified by the Selling
Stockholders as being beneficially owned by them as of May 15, 1995, and the
aggregate number of shares of Common Stock being sold by each of them in the
Offering.
 
   
<TABLE>
<CAPTION>
                                                                                 NUMBER OF
                                                 NUMBER OF       NUMBER OF       SHARES OF        PERCENT OF COMMON
                                                 SHARES OF       SHARES OF      COMMON STOCK      STOCK OUTSTANDING
                                                COMMON STOCK    COMMON STOCK    TO BE OWNED     ---------------------
             NAME AND ADDRESS OF                OWNED BEFORE     TO BE SOLD        AFTER         BEFORE       AFTER
               BENEFICIAL OWNER                   OFFERING      IN OFFERING       OFFERING      OFFERING     OFFERING
- ----------------------------------------------  ------------    ------------    ------------    --------     --------
<S>                                             <C>             <C>             <C>             <C>          <C>
Brown Brothers Harriman Trust Company of
  Texas, as trustee of trusts in the names of
  Betty Regard, Margaret Simmons, Suzanne
  Bartolucci, Lamar Norsworthy and Nona
  Barrett.....................................   2,208,844         697,708       1,511,136        26.8%        18.3%
David Norsworthy(1)...........................     250,752          98,000         152,752         3.0          1.9
Lamar Norsworthy(2)(3)........................     428,581         102,146         326,435         5.2          4.0
Nona Barrett(4)...............................     430,278         102,146         328,132         5.2          4.0
</TABLE>
    
 
- ---------------
 
   
(1) Does not include 93,854 shares held by a trust of which this Selling
     Shareholder is a beneficiary. In addition, does not include 285,858 shares
     beneficially owned by three trusts of which the Selling Shareholder is a
     co-trustee; the Selling Shareholder disclaims that he is a beneficial owner
     except as to 1,430 of these shares.
    
 
   
(2) Does not include 93,854 shares held by a trust of which this Selling
     Shareholder is a beneficiary, which shares are being sold in the Offering
     by Brown Brothers Harriman Trust Company of Texas as trustee of such trust.
     In addition, does not include 285,858 shares beneficially owned by three
     trusts of which the Selling Shareholder is a co-trustee; the Selling
     Shareholder disclaims that he is a beneficial owner except as to 1,430 of
     these shares.
    
 
   
(3) Lamar Norsworthy is Chairman of the Board, President, Chief Executive
     Officer and a director of the Company.
    
 
   
(4) Does not include 93,854 shares held by a trust of which this Selling
     Shareholder is a beneficiary, which shares are being sold in the Offering
     by Brown Brothers Harriman Trust Company of Texas as trustee of such trust.
     In addition, does not include 285,858 shares beneficially owned by three
     trusts of which the Selling Shareholder, David Norsworthy and Lamar
     Norsworthy are beneficiaries and of which David Norsworthy, Lamar
     Norsworthy and Brown Brothers Harriman Trust Company of Texas are
     co-trustees.
    
 
                                       33
<PAGE>   35
 
                          DESCRIPTION OF COMMON STOCK
 
     The following description of the Common Stock is qualified in its entirety
by reference to the portions of the Company's Restated Certificate of
Incorporation and Revised By-laws, which have been filed as exhibits to the
Registration Statement of which this Prospectus is a part.
 
     The Company is authorized to issue 20,000,000 shares of Common Stock, par
value of $0.01 per share. Except as expressly required by law or provided in the
Restated Certificate of Incorporation of the Company or the Revised By-laws of
the Company, each holder of Common Stock shall be entitled to one vote, in
person or by proxy, for each share of Common Stock recorded in the stock records
of the Company in such stockholder's name. No holder of the Common Stock shall
be entitled as of right to subscribe for, purchase or receive any part of any
new or additional shares of stock of any class, whether now or hereafter
authorized, or of bonds, debentures or other evidences of indebtedness
convertible into or exchangeable for stock, but all such new or additional
shares of stock of any class, or bonds, debentures or other evidences of
indebtedness convertible into or exchangeable for stock, may be issued and
disposed of by the Board of Directors on such terms and for such consideration,
so far as may be permitted by law, and to such person or persons as the Board of
Directors in its absolute discretion may deem advisable. The holders of the
Common Stock have such rights to receive dividends and to receive distributions
upon a dissolution or liquidation of the Company as are provided for under the
General Corporation Law of Delaware. In addition to the Common Stock, the
Company is authorized to issue up to 1,000,000 shares of preferred stock, par
value $1.00 per share (the "Preferred Stock"), having such designations as may
be fixed by the Board of Directors of the Company. The rights of the holders of
the Common Stock are subject to the terms of any Preferred Stock issued, and in
the event of a liquidation or dissolution of the Company, would be subordinate
to distributions made with respect to the liquidation preferences of holders of
Preferred Stock, if any shares of Preferred Stock were then outstanding.
 
                                  UNDERWRITING
 
   
     Subject to the terms and conditions set forth in the Purchase Agreement
(the "Purchase Agreement") among the Company, the Selling Stockholders and each
of the underwriters named below (the "Underwriters"), the Selling Stockholders
have agreed to sell to each of the Underwriters, and each of the Underwriters,
for whom Merrill Lynch, Pierce, Fenner & Smith Incorporated and CS First Boston
Corporation are acting as representatives (the "Representatives"), has severally
agreed to purchase from the Selling Stockholders the number of shares of Common
Stock set forth below opposite their respective names. The Underwriters are
committed to purchase all of such shares if any are purchased. Under certain
circumstances, the commitments of nondefaulting Underwriters may be increased as
set forth in the Purchase Agreement.
    

    
<TABLE>
<CAPTION>
                                                                                NUMBER OF
                                          UNDERWRITERS                           SHARES
    --------------------------------------------------------------------------- ---------
    <S>                                                                         <C>
    Merrill Lynch, Pierce, Fenner & Smith
                 Incorporated..................................................
    CS First Boston Corporation................................................
 
                                                                                ---------
                 Total......................................................... 1,000,000
                                                                                 ========
</TABLE>
    
 
     The Representatives have advised the Company and the Selling Stockholders
that the Underwriters propose to offer the shares of Common Stock to the public
initially at the public offering price set forth on the cover page of this
Prospectus, and to certain dealers at such price less a concession not in excess
of $          per share. The Underwriters may allow, and such dealers may
re-allow, a discount not in excess of $
 
                                       34
<PAGE>   36
 
per share on sales to certain other dealers. After the public offering, the
public offering price, concession and discount may be changed.
 
   
     The Selling Stockholders have granted the Underwriters an option,
exercisable by the Representatives, to purchase up to 150,000 additional shares
of Common Stock at the initial public offering price, less the underwriting
discount. Such option, which expires 30 days after the date of this Prospectus,
may be exercised solely to cover over-allotments. To the extent that the
Representatives exercise such options, each of the Underwriters will be
obligated, subject to certain conditions, to purchase approximately the same
percentage of the option shares that the number of shares of Common Stock to be
purchased initially by that Underwriter bears to the total number of shares to
be purchased initially by the Underwriters.
    
 
     The Company and the Selling Stockholders have agreed to indemnify the
Underwriters against certain liabilities, including liabilities under the
Securities Act, or to contribute to payments the Underwriters may be required to
make in respect thereof.
 
   
     Each of the Company, the Selling Stockholders and certain trusts for the
benefit of the Selling Stockholders has agreed that it will not, without the
prior written consent of the Representatives, directly or indirectly, sell,
offer to sell, grant any option for the sale of or otherwise dispose of, any
shares of Common Stock or any security convertible into or exchangeable or
exercisable for any such shares of Common Stock for a period of 180 days from
the date of this Prospectus.
    
 
                                 LEGAL MATTERS
 
   
     Certain legal matters with respect to the Common Stock offered hereby will
be passed upon for the Selling Stockholders by Weil, Gotshal & Manges (a
partnership including professional corporations), Dallas, Texas. Certain legal
matters in connection with the sale of the Common Stock offered hereby will be
passed upon for the Underwriters by Baker & Botts L.L.P., Dallas, Texas. W. John
Glancy, a director of the Company, is a partner in Weil, Gotshal & Manges and
beneficially owns 200 shares of Common Stock. Baker & Botts, L.L.P. from time to
time provides legal services to the Company.
    
 
                                    EXPERTS
 
     The consolidated financial statements of Holly Corporation at July 31, 1994
and 1993, and for each of the three years in the period ended July 31, 1994,
appearing in this Prospectus and Registration Statement have been audited by
Ernst & Young LLP, independent auditors, as set forth in their report thereon
appearing elsewhere herein and in the Registration Statement, and are included
herein in reliance upon such report given upon the authority of such firm as
experts in accounting and auditing.
 
                                       35
<PAGE>   37
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        -----
<S>                                                                                     <C>
Annual Financial Statements
  Report of Independent Auditors......................................................    F-2
  Consolidated Balance Sheet at July 31, 1994 and 1993................................    F-3
  Consolidated Statement of Income for the years ended July 31, 1994, 1993 and 1992...    F-4
  Consolidated Statement of Cash Flows for the years ended July 31, 1994, 1993 and
     1992.............................................................................    F-5
  Consolidated Statement of Stockholders' Equity for the years ended
     July 31, 1994, 1993 and 1992.....................................................    F-6
  Notes to Consolidated Financial Statements..........................................    F-7
Interim Financial Statements
  Condensed Consolidated Balance Sheet -- April 30, 1995 (Unaudited)..................   F-17
  Condensed Consolidated Statement of Income (Unaudited) for the nine months ended
     April 30, 1995 and 1994..........................................................   F-18
  Condensed Consolidated Statement of Cash Flows (Unaudited) for the nine months ended
     April 30, 1995 and 1994..........................................................   F-19
  Notes to Condensed Consolidated Financial Statements................................   F-20
</TABLE>
 
                                       F-1
<PAGE>   38
 
                          REPORT OF ERNST & YOUNG LLP
                              INDEPENDENT AUDITORS
 
The Board of Directors
and Stockholders of Holly Corporation
 
     We have audited the accompanying consolidated balance sheet of Holly
Corporation (the "Company") at July 31, 1994 and 1993, and the related
consolidated statements of income, cash flows and stockholders' equity for each
of the three years in the period ended July 31, 1994. 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 consolidated financial statements referred to above
present fairly, in all material respects, the consolidated financial position of
Holly Corporation at July 31, 1994 and 1993, and the consolidated results of its
operations and its cash flows for each of the three years in the period ended
July 31, 1994, in conformity with generally accepted accounting principles.
 
                                          ERNST & YOUNG LLP
 
Dallas, Texas
September 20, 1994
 
                                       F-2
<PAGE>   39
 
                               HOLLY CORPORATION
 
                           CONSOLIDATED BALANCE SHEET
 
<TABLE>
<CAPTION>
                                                                               JULY 31,
                                                                         ---------------------
                                                                           1994         1993
                                                                         --------     --------
                                                                           ($ IN THOUSANDS,
                                                                       EXCEPT PER SHARE AMOUNTS)
<S>                                                                      <C>          <C>
ASSETS
Current assets
  Cash and cash equivalents (Note 6)...................................  $  3,297     $  6,631
  Accounts receivable (Notes 3 and 6)..................................    94,280       76,867
  Inventories (Notes 4 and 6)..........................................    43,995       37,972
  Income taxes receivable..............................................       697           --
  Prepayments and other................................................     9,340        7,082
                                                                         --------     --------
     Total current assets..............................................   151,609      128,552
Properties, plants and equipment, net (Note 5).........................   128,962      118,821
Other assets...........................................................     1,243        2,434
                                                                         --------     --------
                                                                         $281,814     $249,807
                                                                         ========     ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Accounts payable.....................................................  $112,084     $ 86,787
  Accrued liabilities..................................................    14,945       16,648
  Income taxes payable.................................................       736        7,364
  Current maturities of long-term debt (Note 6)........................     5,608        5,608
                                                                         --------     --------
     Total current liabilities.........................................   133,373      116,407
Deferred income taxes (Note 7).........................................    14,829       12,474
Long-term debt, less current maturities (Note 6).......................    68,840       74,448
Contingencies (Notes 10 and 12)
Stockholders' equity (Notes 6, 8 and 9)
  Preferred stock, $1.00 par value -- 1,000,000 shares authorized; none
     issued............................................................        --           --
  Common stock, $.01 par value -- 20,000,000 shares authorized;
     8,650,282 shares issued...........................................        87           87
  Additional capital...................................................     6,132        6,132
  Retained earnings....................................................    59,942       42,058
                                                                         --------     --------
                                                                           66,161       48,277
  Common stock held in treasury, at cost -- 396,768 shares.............      (569)        (569)
  Deferred charge -- amount due from ESOP..............................      (820)      (1,230)
                                                                         --------     --------
          Total stockholders' equity...................................    64,772       46,478
                                                                         --------     --------
                                                                         $281,814     $249,807
                                                                         ========     ========
</TABLE>
 
See accompanying notes.
 
                                       F-3
<PAGE>   40
 
                               HOLLY CORPORATION
 
                        CONSOLIDATED STATEMENT OF INCOME
 
<TABLE>
<CAPTION>
                                                                    YEARS ENDED JULY 31,
                                                             ----------------------------------
                                                               1994         1993         1992
                                                             --------     --------     --------
                                                        ($ IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                                          <C>          <C>          <C>
REVENUES
  Net sales................................................  $550,903     $629,884     $506,185
  Miscellaneous............................................     1,417          737          483
                                                             --------     --------     --------
                                                              552,320      630,621      506,668
COSTS AND EXPENSES
  Cost of sales............................................   480,916      565,638      474,151
  General and administrative...............................    12,369       11,951        9,263
  Depreciation, depletion and amortization.................    10,871       11,344       10,085
  Exploration expenses, including dry holes................     4,441        2,867        2,005
  Miscellaneous............................................       183          150          148
                                                             --------     --------     --------
                                                              508,780      591,950      495,652
                                                             --------     --------     --------
Income from operations.....................................    43,540       38,671       11,016
OTHER INCOME (EXPENSE)
  Interest income..........................................       447          169          432
  Interest expense (Note 6)................................    (8,985)      (9,523)     (10,086)
  Other (Note 11)..........................................        --        4,000         (700)
                                                             --------     --------     --------
                                                               (8,538)      (5,354)     (10,354)
                                                             --------     --------     --------
Income before income taxes and cumulative effect of change
  in accounting for income taxes...........................    35,002       33,317          662
Income tax provision (benefit) (Notes 2, 7 and 10)
  Current..................................................    11,785       12,647         (966)
  Deferred.................................................     2,500          737       (1,131)
                                                             --------     --------     --------
                                                               14,285       13,384       (2,097)
                                                             --------     --------     --------
Income before cumulative effect of change in
  accounting principle.....................................    20,717       19,933        2,759
Cumulative effect to August 1, 1992 of change in
  accounting for income taxes (Note 2).....................        --         (958)          --
                                                             --------     --------     --------
Net income.................................................  $ 20,717     $ 18,975     $  2,759
                                                             ========     ========     ========
Income per common share
  Income before cumulative effect of change in
     accounting principle..................................  $   2.51     $   2.42     $    .33
  Cumulative effect to August 1, 1992 of change in
     accounting for income taxes...........................        --         (.12)          --
                                                             --------     --------     --------
  Net income...............................................  $   2.51     $   2.30     $    .33
                                                             ========     ========     ========
Cash dividends paid per share..............................  $    .35     $    .30     $    .45
                                                             ========     ========     ========
Average number of shares of common stock outstanding
  (in thousands)...........................................     8,254        8,254        8,254
                                                             ========     ========     ========
</TABLE>
 
See accompanying notes.
 
                                       F-4
<PAGE>   41
 
                               HOLLY CORPORATION
 
                      CONSOLIDATED STATEMENT OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                    YEARS ENDED JULY 31,
                                                             ----------------------------------
                                                               1994         1993         1992
                                                             --------     --------     --------
                                                                      ($ IN THOUSANDS)
<S>                                                          <C>          <C>          <C>
CASH FLOWS FROM OPERATING ACTIVITIES
  Net income...............................................  $ 20,717     $ 18,975     $  2,759
  Adjustments to reconcile net income to net cash
     provided by operating activities
     Depreciation, depletion and amortization..............    10,871       11,344       10,085
     Deferred income taxes.................................     2,500          737       (1,131)
     Dry hole costs and leasehold impairment...............     1,509        1,175          369
     Cumulative effect to August 1, 1992 of change in
       accounting for income taxes.........................        --          958           --
     Changes in operating assets and liabilities
       (Increase) decrease in accounts receivable..........   (17,413)      12,222      (27,388)
       Increase in inventories.............................    (6,023)      (2,365)      (5,984)
       (Increase) decrease in income taxes receivable......      (697)       2,115       (1,876)
       Increase in prepayments and other...................    (2,403)        (197)      (1,581)
       (Increase) decrease in accounts payable.............    25,297      (19,964)      26,005
       (Increase) decrease in accrued liabilities..........    (1,703)       6,419          858
       (Increase) decrease in income taxes payable.........    (6,572)       7,427       (1,970)
     Other, net............................................     1,601         (109)         815
                                                             --------     --------     --------
          Net cash provided by operating activities........    27,684       38,737          961
CASH FLOWS FROM FINANCING ACTIVITIES
     Increase (decrease) in notes payable..................        --      (10,500)      10,500
     Reduction of long-term debt...........................    (5,608)        (108)        (474)
     Issuance costs of debt................................        --         (291)          --
     Cash dividends........................................    (2,889)      (2,476)      (3,714)
                                                             --------     --------     --------
          Net cash provided by (used for) financing
            activities.....................................    (8,497)     (13,375)       6,312
CASH FLOWS FROM INVESTING ACTIVITIES
     Additions to properties, plants and equipment.........   (22,521)     (20,120)     (22,317)
     Additional cost of partnership........................        --           --         (739)
                                                             --------     --------     --------
          Net cash used for investing activities...........   (22,521)     (20,120)     (23,056)
                                                             --------     --------     --------
CASH AND CASH EQUIVALENTS
     (Increase) decrease for the year......................    (3,334)       5,242      (15,783)
     Beginning of year.....................................     6,631        1,389       17,172
                                                             --------     --------     --------
     End of year...........................................  $  3,297     $  6,631     $  1,389
                                                             ========     ========     ========
</TABLE>
 
See accompanying notes.
 
                                       F-5
<PAGE>   42
 
                               HOLLY CORPORATION
 
                 CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                                                                           AMOUNT
                                                                             DUE         TOTAL
                              COMMON   ADDITIONAL   RETAINED   TREASURY     FROM      STOCKHOLDERS'
                              STOCK     CAPITAL     EARNINGS    STOCK       ESOP         EQUITY
                              ------   ----------   --------   --------   ---------   ------------
                                                        ($ IN THOUSANDS)
<S>                           <C>      <C>          <C>        <C>        <C>         <C>
BALANCE AT JULY 31, 1991....   $ 87      $6,132     $26,212     $ (569)    $(2,051)     $ 29,811
Net income..................     --          --       2,759         --          --         2,759
Dividends paid..............     --          --      (3,714)        --          --        (3,714)
Reduction in amount due from
  ESOP......................     --          --          --         --         410           410
Tax benefit of dividends
  paid to ESOP..............     --          --         239         --          --           239
                              -----    --------     -------    -------    --------    ----------
BALANCE AT JULY 31, 1992....     87       6,132      25,496       (569)     (1,641)       29,505
Net income..................     --          --      18,975         --          --        18,975
Dividends paid..............     --          --      (2,476)        --          --        (2,476)
Reduction in amount due from
  ESOP......................     --          --          --         --         411           411
Tax benefit of dividends
  paid to ESOP on
  unallocated shares........     --          --          63         --          --            63
                              -----    --------     -------    -------    --------    ----------
BALANCE AT JULY 31, 1993....     87       6,132      42,058       (569)     (1,230)       46,478
Net income..................     --          --      20,717         --          --        20,717
Dividends paid..............     --          --      (2,889)        --          --        (2,889)
Reduction in amount due from
  ESOP......................     --          --          --         --         410           410
Tax benefit of dividends
  paid to ESOP on
  unallocated shares........     --          --          56         --          --            56
                              -----    --------     -------    -------    --------    ----------
BALANCE AT JULY 31, 1994....   $ 87      $6,132     $59,942     $ (569)    $  (820)     $ 64,772
                              =====    ========     =======    =======    ========    ==========
</TABLE>
 
See accompanying notes.
 
                                       F-6
<PAGE>   43
 
                               HOLLY CORPORATION
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                          JULY 31, 1994, 1993 AND 1992
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
PRINCIPLES OF CONSOLIDATION
 
     The Company is principally engaged in the refining of petroleum products.
Although the Company is also engaged in certain oil and gas exploration and
production activities, such activities do not represent a significant segment of
the Company's assets or operations.
 
     The consolidated financial statements include the accounts of the Company,
its subsidiaries and Montana Refining Company, a Partnership (MRC).
 
CASH EQUIVALENTS
 
     For purposes of the statement of cash flows, the Company considers all
highly liquid investments with a maturity of three months or less at the time of
purchase to be cash equivalents.
 
INVENTORIES
 
     Inventories are stated at the lower of cost, using the last-in, first-out
(LIFO) method for crude oil and refined products and the average cost method for
materials and supplies, or market.
 
REVENUE RECOGNITION
 
     Sales and related cost of sales are recognized when products are shipped to
customers and title passes. Sales are reported exclusive of excise taxes.
 
DEPRECIATION
 
     Depreciation is provided by the straight-line method over the estimated
useful lives of the assets, primarily 10 to 30 years for refining and pipeline
facilities and 3 to 10 years for corporate and other assets.
 
OIL AND GAS EXPLORATION AND DEVELOPMENT
 
     The Company accounts for the acquisition, exploration, development and
production costs of its oil and gas activities using the successful efforts
method of accounting. Lease acquisition costs are capitalized; undeveloped
leases are written down when determined to be impaired and written off upon
expiration or surrender. Geological and geophysical costs and delay rentals are
expensed as incurred. Exploratory well costs are initially capitalized, but if
the effort is unsuccessful, the costs are charged against earnings. Development
costs, whether or not successful, are capitalized. Productive properties are
stated at the lower of amortized cost or estimated realizable value of
underlying proved oil and gas reserves. Depreciation, depletion and amortization
of such properties is computed by the unit-of-production method.
 
EARNINGS PER SHARE
 
     Earnings per share amounts are based upon the weighted average number of
common shares outstanding during each period.
 
FUTURES CONTRACTS
 
     The Company enters into futures contracts to hedge a portion of the price
risk associated with crude oil and refined products. Gains or losses on
contracts are recognized when the related inventory is sold or the hedged
transaction is consummated.
 
                                       F-7
<PAGE>   44
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
2. ACCOUNTING CHANGE
 
     Effective August 1, 1992, the Company adopted Statement of Financial
Accounting Standards (SFAS) No. 109, "Accounting for Income Taxes", which amends
the accounting for income taxes from the deferral method to the liability
method. Under the liability method, deferred taxes are stated at the income tax
rates currently in effect or scheduled to be implemented rather than at the tax
rate in effect when the taxes were provided. The cumulative effect of this
accounting change through the 1992 fiscal year was a $958,000 increase in the
Company's deferred tax liability at August 1, 1992. This additional income tax
expense was reflected as a reduction of $958,000 in net income in the first
quarter of the 1993 fiscal year or $.12 per share. Excluding the provision for
the cumulative effect upon adoption of the new standard, the effect of the
change on net income was not material.
 
3. ACCOUNTS RECEIVABLE
 
<TABLE>
<CAPTION>
                                                                        1994        1993
                                                                       -------     -------
                                                                        ($ IN THOUSANDS)
    <S>                                                                <C>         <C>
    Product..........................................................  $45,259     $40,412
    Crude oil resales................................................   49,021      36,455
                                                                       -------     -------
                                                                       $94,280     $76,867
                                                                       =======     =======
</TABLE>
 
     Crude oil resales accounts receivable principally represent the sell side
of reciprocal crude oil buy/sell exchange arrangements involved in supplying
crude oil to the refineries, with an approximate like amount reflected in
accounts payable. The net differential of these crude oil buy/sell exchanges is
reflected in cost of sales. The exchange differentials result principally from
crude oil type and location differences.
 
     Credit losses are provided for in the financial statements and consistently
have been minimal.
 
4. INVENTORIES
 
<TABLE>
<CAPTION>
                                                                        1994        1993
                                                                       -------     -------
                                                                        ($ IN THOUSANDS)
    <S>                                                                <C>         <C>
    Crude oil and refined products...................................  $37,949     $32,625
    Materials and supplies...........................................    6,046       5,347
                                                                       -------     -------
                                                                       $43,995     $37,972
                                                                       =======     =======
</TABLE>
 
     The excess of current costs over the LIFO value of inventory was
$12,228,000 and $5,990,000 at July 31, 1994 and 1993, respectively.
 
5. PROPERTIES, PLANTS AND EQUIPMENT
 
<TABLE>
<CAPTION>
                                                                       1994         1993
                                                                     --------     --------
                                                                       ($ IN THOUSANDS)
    <S>                                                              <C>          <C>
    Properties, plants and equipment, at cost
      Refining and pipeline facilities.............................  $224,540     $207,935
      Oil and gas exploration and development......................    10,607        6,651
      Corporate and other..........................................     1,038        1,017
                                                                     --------     --------
                                                                      236,185      215,603
    Accumulated depreciation, depletion and amortization...........   107,223       96,782
                                                                     --------     --------
                                                                     $128,962     $118,821
                                                                     ========     ========
</TABLE>
 
                                       F-8
<PAGE>   45
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
     Refining and pipeline facilities at July 31, 1994 and 1993 include
$4,452,000 and $12,002,000, respectively, of construction in progress which was
not being depreciated at those dates, pending completion of the construction
projects.
 
6. DEBT
 
<TABLE>
<CAPTION>
                                                                        1994        1993
                                                                       -------     -------
                                                                        ($ IN THOUSANDS)
    <S>                                                                <C>         <C>
    Senior Notes.....................................................  $74,400     $80,000
    Other............................................................       48          56
                                                                       -------     -------
                                                                        74,448      80,056
    Less current maturities of long-term debt........................    5,608       5,608
                                                                       -------     -------
                                                                       $68,840     $74,448
                                                                       =======     =======
</TABLE>
 
SENIOR NOTES
 
     In June 1991, the Company sold $80 million of Senior Notes to a group of
insurance companies. The Senior Notes were issued in two Series and are
unsecured. The Series A Notes are in the principal amount of $28 million, have a
7-year life, require equal annual principal payments of $5,600,000 beginning
June 15, 1994 and bear interest at 9.72%. The Series B Notes are in the
principal amount of $52 million, have a 10-year life, require equal annual
principal payments of $8,667,000 beginning June 15, 1996 and bear interest at
10.16%. The note agreement imposes certain restrictive covenants, including
limitations on liens, additional indebtedness, sale of assets, investments,
business combinations and dividends, which limitations collectively are less
restrictive than the terms of the bank Credit Agreement.
 
CREDIT AGREEMENT
 
     In July 1993, the Company and certain of its subsidiaries entered into a
new two-year bank Credit Agreement (Credit Agreement), which provides a $100
million facility for letters of credit or for direct borrowings of up to $25
million, with such borrowings being subject to an annual 20-day cleanup period.
Interest on borrowings is based upon, at the Company's option, (i) the agent
bank's prime rate plus  1/2% per annum; (ii) various Eurodollar related rates;
and (iii) various certificate of deposit related rates. A fee of 1% per annum is
payable quarterly on the outstanding balance of all letters of credit, and a
commitment fee of 3/8 of 1% per annum is payable on the unused portion of the
facility. The borrowing base for the facility consists of cash, cash
equivalents, accounts receivable and inventory, all of which secure the
facility. The Credit Agreement imposes certain restrictions, including: (i) a
prohibition of other indebtedness in excess of $3 million with exceptions for,
among other things, indebtedness under the Company's Senior Notes and certain
nonrecourse debt; (ii) maintenance of certain levels of net worth, working
capital and interest coverage; (iii) limitations on investments and dividends;
and (iv) a prohibition of incursions on controlling ownership, material changes
in senior management and business combinations with unaffiliated entities.
 
     At July 31, 1994, the Company had outstanding letters of credit totalling
$51,376,000 and no borrowings. The unused commitment under the Credit Agreement
at July 31, 1994 was $48,624,000, of which up to $25,000,000 may be used for
additional direct borrowings.
 
                                       F-9
<PAGE>   46
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
     The average and maximum amounts outstanding and the effective average
interest rate for borrowings under the Company's current and prior credit
agreements were as follows:
 
<TABLE>
<CAPTION>
                                                              1994        1993        1992
                                                             -------    --------    --------
                                                                    ($ IN THOUSANDS)
    <S>                                                      <C>        <C>         <C>
    Average amount outstanding.............................  $    39    $  3,565    $  7,558
    Maximum balance........................................  $ 1,900    $ 22,330    $ 23,100
    Effective average interest rate........................     6.6%        6.6%        7.7%
</TABLE>
 
     The Senior Notes and Credit Agreement restrict investments and
distributions, including dividends, to an amount in the aggregate not to exceed
75% of cumulative consolidated net income (as defined). Under the most
restrictive of these covenants, at July 31, 1994 approximately $20.7 million was
available for the payment of dividends.
 
     Maturities of long-term debt for the next five fiscal years are as follows:
1995 -- $5,608,000; 1996 -- $14,275,000; 1997 -- $14,275,000;
1998 -- $14,275,000 and 1999 -- $8,675,000.
 
     The Company made interest payments of $8,744,000 in 1994, $9,058,000 in
1993 and $9,361,000 in 1992.
 
     Based on the borrowing rates that the Company believes would be available
for replacement loans with similar terms and maturities of the debt of the
Company now outstanding, the fair value of long-term debt including current
maturities would be $79.3 million at July 31, 1994.
 
7. INCOME TAXES
 
     Effective August 1, 1992, the Company adopted SFAS No. 109 to account for
income taxes (see Note 2).
 
     The statutory federal income tax rate applied to pre-tax book income
reconciles to income tax expense as follows:
 
<TABLE>
<CAPTION>
                                                             1994        1993        1992
                                                            -------     -------     -------
                                                                   ($ IN THOUSANDS)
    <S>                                                     <C>         <C>         <C>
    Tax computed at statutory rate........................  $12,251     $11,521(1)  $   225
    State income taxes, net of federal tax benefit........    1,888       1,744          35
    Adjustment of deferred tax provision relating to MRC
      (see Note 10).......................................       --          --      (2,579)
    Other.................................................      146         119         222
                                                            -------     -------     -------
                                                            $14,285     $13,384     $(2,097)
                                                            =======     =======     =======
</TABLE>
 
(1) Blended rate, as federal income tax rate changed effective January 1, 1993.
 
     Additionally, tax benefit of $56,000, $63,000 and $239,000 for dividends
paid in fiscal 1994, 1993 and 1992, respectively, to the Company's Employee
Stock Ownership Plan was directly credited to retained earnings.
 
     Operations of the corporation that was the sole limited partner of MRC
prior to the acquisition of such corporation by the Company (See Note 10)
resulted in unused net operating loss carryforwards of approximately $7,000,000,
which are expected to be available to the Company to a limited extent each year
through 2006 based on the income of such corporation. As of July 31, 1994,
approximately $6,000,000 of these net operating loss carryforwards remain
available to offset future income. For financial reporting purposes, any benefit
of these net operating loss carryforwards is being offset against any contingent
future payments relating to the acquisition of such corporation.
 
                                      F-10
<PAGE>   47
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
     Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amount used for income tax purposes.
 
     The Company's deferred income tax assets and liabilities as of July 31,
1994 and 1993 are as follows:
 
<TABLE>
<CAPTION>
                                                                              1994
                                                               -----------------------------------
                                                               ASSETS     LIABILITIES      TOTAL
                                                               ------     -----------     --------
                                                                        ($ IN THOUSANDS)
<S>                                                            <C>        <C>             <C>
Deferred taxes
  Nondeductible employee benefits............................  $1,376     $        --     $  1,376
  Provision for future maintenance...........................   1,353              --        1,353
  Prepayments and other......................................   1,339          (1,747)        (408)
                                                               ------     -----------     --------
Total current................................................   4,068          (1,747)       2,321
  Properties, plants and equipment (primarily tax in excess
     of book depreciation)...................................      --         (16,038)     (16,038)
  Intangible drilling costs..................................      --            (704)        (704)
  Nondeductible oil and gas costs............................   1,813              --        1,813
  Other......................................................     152             (52)         100
                                                               ------     -----------     --------
Total noncurrent.............................................   1,965         (16,794)     (14,829)
                                                               ------     -----------     --------
                                                                6,033         (18,541)     (12,508)
Valuation allowance..........................................      --              --           --
                                                               ------     -----------     --------
Total........................................................  $6,033     $   (18,541)    $(12,508)
                                                               ======     ===========     ========
</TABLE>
 
<TABLE>
<CAPTION>
                                                                              1993
                                                               -----------------------------------
                                                               ASSETS     LIABILITIES      TOTAL
                                                               ------     -----------     --------
                                                                        ($ IN THOUSANDS)
<S>                                                            <C>        <C>             <C>
Deferred taxes
  Nondeductible employee benefits............................  $1,107     $        --     $  1,107
  Provision for future maintenance...........................   2,477              --        2,477
  Prepayments and other......................................     521          (1,639)      (1,118)
                                                               ------     -----------     --------
Total current................................................   4,105          (1,639)       2,466
  Properties, plants and equipment (primarily tax in excess
     of book depreciation)...................................      --         (13,423)     (13,423)
  Intangible drilling costs..................................      --            (375)        (375)
  Nondeductible oil and gas costs............................   1,173              --        1,173
  Other......................................................     151              --          151
                                                               ------     -----------     --------
Total noncurrent.............................................   1,324         (13,798)     (12,474)
                                                               ------     -----------     --------
                                                                5,429         (15,437)     (10,008)
Valuation allowance..........................................      --              --           --
                                                               ------     -----------     --------
Total........................................................  $5,429     $   (15,437)    $(10,008)
                                                               ======     ===========     ========
</TABLE>
 
                                      F-11
<PAGE>   48
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
     The deferred income tax benefits for the 1992 fiscal year (prior to the
adoption of SFAS No. 109) are as follows:
 
<TABLE>
<CAPTION>
                                                                                  1992
                                                                            ----------------
                                                                            ($ IN THOUSANDS)
    <S>                                                                     <C>
    Excess tax (book) depreciation........................................      $  1,361
    Provision for future maintenance......................................          (423)
    Adjustment of prior years' deferred tax provision relating to
      MRC (see Note 10)...................................................        (1,483)
    Other.................................................................          (586)
                                                                            ------------
                                                                                $ (1,131)
                                                                            ============
</TABLE>
 
     The Company made income tax payments of $18,893,000 in 1994, $5,138,000 in
1993 and $2,503,000 in 1992.
 
     The Company's federal income tax returns have been examined by the Internal
Revenue Service through 1990.
 
8. STOCKHOLDERS' EQUITY
 
STOCK OPTIONS
 
     At July 1, 1994 and 1993, no stock options were outstanding and 751,500
shares of common stock were reserved for issuance under the Company's stock
option plan.
 
9. EMPLOYEE BENEFIT PLANS
 
PENSION PLANS
 
     The Company has non-contributory defined benefit retirement plans that
cover substantially all employees. The Company's policy is to make contributions
annually of not less than the minimum funding requirements of the Employee
Retirement Income Security Act of 1974. Benefits are based on the employee's
years of service and compensation.
 
     Pension expense includes the following components:
 
<TABLE>
<CAPTION>
                                                             1994        1993        1992
                                                            -------     -------     -------
                                                                   ($ IN THOUSANDS)
    <S>                                                     <C>         <C>         <C>
    Service cost -- benefits earned during the year.......  $ 1,014     $ 1,124     $   908
    Interest cost on projected benefit obligations........    1,603       1,711       1,557
    Actual return on plan assets..........................     (841)     (1,802)     (2,110)
    Net amortization and deferral.........................   (1,252)       (379)         35
                                                            -------     -------     -------
    Pension expense.......................................  $   524     $   654     $   390
                                                            =======     =======     =======
</TABLE>
 
                                      F-12
<PAGE>   49
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
     The following table sets forth the funded status of the plans and amounts
recognized in the consolidated balance sheet:
 
<TABLE>
<CAPTION>
                                                                        1994        1993
                                                                       -------     -------
                                                                        ($ IN THOUSANDS)
    <S>                                                                <C>         <C>
    Plan assets at fair value........................................  $23,256     $23,478
    Actuarial present value of projected benefit obligations:
      Accumulated benefit obligations:
         Vested......................................................   17,733      17,034
         Unvested....................................................      222         303
      Provision for future salary increases..........................    6,171       6,289
                                                                       -------     -------
    Projected benefit obligations....................................   24,126      23,626
                                                                       -------     -------
    Plan assets less than projected benefit obligations..............     (870)       (148)
    Unrecognized net loss............................................      248         227
    Unrecognized prior service cost..................................      108         144
    Unrecognized transition net asset................................   (1,435)     (1,648)
                                                                       -------     -------
    Accrued pension liability recognized in the consolidated balance
      sheet..........................................................  $(1,949)    $(1,425)
                                                                       =======     =======
</TABLE>
 
     The principal actuarial assumptions were:
 
<TABLE>
<CAPTION>
                                                                    1994     1993     1992
                                                                    ----     ----     ----
    <S>                                                             <C>      <C>      <C>
    Discount rate.................................................  7.5%     7.5%     7.5%
    Rate of future compensation increases.........................    5%       5%       6%
    Expected long-term rate of return on assets...................  8.5%     8.5%       9%
</TABLE>
 
     Pension costs are determined using the assumptions as of the beginning of
the year. The funded status is determined using the assumptions as of the end of
the year.
 
     Approximately 52% of plan assets is invested in equity securities and 48%
is invested in fixed income securities and other instruments at July 31, 1994.
 
EMPLOYEE STOCK OWNERSHIP PLAN
 
     In December 1985, the Company established an Employee Stock Ownership Plan
(ESOP). The ESOP is non-contributory and includes substantially all employees of
the Company and its subsidiaries who meet certain length of service requirements
and are not covered by a collective bargaining agreement.
 
     In 1985, the ESOP borrowed from the Company the $4,102,000 needed to
purchase 1,500,000 shares of the Company's common stock. The loan is repayable
in ten annual installments of $410,000 (subject to certain adjustments)
commencing August 1, 1986 and bears interest at 12% per annum. The Company is
obligated to make annual contributions sufficient to enable the ESOP to repay
the loan with interest. The unearned compensation of $4,102,000 was recorded as
a reduction of stockholders' equity and is being reduced as payments are made.
Interest income earned on the note due from the ESOP is offset against an equal
amount contributed to the ESOP by the Company.
 
10. MONTANA REFINING COMPANY, A PARTNERSHIP
 
     The Company acquired on July 31, 1992, the corporation that was the limited
partner in MRC in connection with a settlement of litigation. The acquisition
involved among other items contingent future payments of up to $189,000 per year
over the period 1993 through 2005.
 
                                      F-13
<PAGE>   50
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
     As a consequence of the acquisition of the limited partner in MRC, certain
deferred taxes have been eliminated, resulting in a decrease for fiscal 1992 of
$2,579,000 in the provision for income taxes, of which $1,483,000 relates to
income taxes provided in prior years.
 
11. OTHER INCOME (EXPENSE)
 
     The amounts in other income (expense) relate principally to settlements.
The 1993 fiscal year included income of $4,000,000 relating to a settlement with
a common carrier pipeline concerning product pipeline distribution constraints.
The 1992 fiscal year included a charge of $700,000 relating to a settlement of a
lawsuit with the limited partner of MRC (see Note 10).
 
12. CONTINGENCIES
 
     In July 1993, the United States Department of Justice, acting on behalf of
the United States Environmental Protection Agency (EPA), filed a complaint in
the United States District Court for the District of New Mexico alleging that
the Company's subsidiary, Navajo Refining Company, beginning in September 1990
and continuing until the present, had violated and continues to violate the
Resource Conservation and Recovery Act (RCRA) and implementing regulations of
the EPA by treating, storing and disposing of certain hazardous wastes without
compliance with regulatory requirements. The complaint seeks a court order
directing Navajo to comply with these regulatory standards and civil penalties
for the alleged non-compliance.
 
     Navajo has answered the complaint, denying all the allegations of legal
liability and asserting affirmative defenses. Only limited discovery has been
conducted. The Company and Navajo have been contesting the Government's case as
necessary and appropriate, while contemporaneously exploring the prospects for
negotiated settlement.
 
     In this regard, a tentative resolution of a substantial portion of the
litigation has been reached. Under this approach, the Company would close the
existing evaporation ponds of its wastewater management system, at an
approximate cost of $1 to $2 million, to be expended over a several year period.
A reserve of $2 million was recorded in fiscal 1993, principally to provide for
the cost of closing existing ponds. In such event, the Company would implement
one of several alternatives to the existing wastewater treatment system.
Depending upon which approach is utilized, the Company could incur capitalizable
costs of an additional $5 to $10 million over the next several years.
 
     Assuming the Company consummates the settlement discussed above, the
remaining aspect of the litigation would be the civil penalty which the
Government seeks. While the amount of any such civil penalty cannot presently be
ascertained, based upon the advice of counsel, it is not believed that any such
penalty would have a materially adverse impact on the Company's financial
position.
 
     The Company is a party to various other litigation and proceedings which it
believes, based on advice of counsel, will not have a materially adverse impact
on its financial condition of operations.
 
13. SIGNIFICANT CUSTOMERS
 
     Virtually all revenues were domestic revenues (including domestic sales for
export to Mexico). Approximately $67,000,000 (12%) of the Company's revenues for
fiscal 1994, $65,000,000 (10%) of revenues for fiscal 1993 and $67,000,000 (13%)
for fiscal 1992 were from the sale of military jet fuel to the United States
Government. Approximately $58,000,000 (11%) of the Company's revenues for fiscal
1994 were from the sale of gasoline to an affiliate of PEMEX (the
government-owned energy company of Mexico). In addition to the United States
Government and PEMEX, another refiner, which is a purchaser of gasoline and
diesel for resale to retail customers, accounted for approximately $75,000,000
(12%) of the Company's
 
                                      F-14
<PAGE>   51
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
revenues in fiscal 1993 and $96,000,000 (19%) in fiscal 1992. While a loss of,
or reduction in amounts purchased by, major purchasers that resell to retail
customers could have an adverse effect on the Company, the Company believes that
the impact of such a loss on the Company's results of operations should be
limited because the Company's sales volume with respect to products whose
end-users are retail customers is more dependent on the general retail demand in
the Company's primary markets than on sales to any specific customer.
 
14. QUARTERLY INFORMATION (UNAUDITED)
 
FINANCIAL DATA
 
<TABLE>
<CAPTION>
                                               FIRST      SECOND     THIRD      FOURTH
                                              QUARTER    QUARTER    QUARTER    QUARTER       YEAR
                                              --------   --------   --------   --------    --------
                                                   ($ IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                           <C>        <C>        <C>        <C>         <C>
1994
  Revenues                                    $135,518   $120,689   $143,934   $152,179    $552,320
  Operating margin (net sales less cost of
     sales).................................  $ 22,570   $ 15,790   $ 23,420   $  8,207    $ 69,987
  Income (loss) before income taxes.........  $ 13,835   $  7,134   $ 14,635   $   (602)   $ 35,002
  Net income (loss).........................  $  8,273   $  4,266   $  8,730   $   (552)   $ 20,717
  Income (loss) per common share............  $   1.00   $    .52   $   1.06   $   (.07)   $   2.51
  Dividends per share.......................  $   .075   $   .075   $    .10   $    .10    $    .35
  Average number of shares of common stock
     outstanding (in thousands).............     8,254      8,254      8,254      8,254       8,254
 
1993
  Revenues..................................  $151,910   $149,871   $161,695   $167,145    $630,621
  Operating margin (net sales less cost of
     sales).................................  $ 12,296   $ 11,683   $ 16,783   $ 23,484    $ 64,246
  Income before income taxes and cumulative
     effect of change in accounting for
     income taxes...........................  $  4,209   $  2,830   $  7,729   $ 18,549    $ 33,317
  Income before cumulative effect of change
     in accounting principle................  $  2,556   $  2,052   $  4,693   $ 10,632    $ 19,933
  Cumulative effect to August 1, 1992 of
     change in accounting for income
     taxes..................................      (958)        --         --         --        (958)
                                              --------   --------   --------   --------    --------
     Net income.............................  $  1,598   $  2,052   $  4,693   $ 10,632(1) $ 18,975
                                              ========   ========   ========   ========    ========
 
  Income per common share
     Income before cumulative effect of
       change in accounting principle.......  $    .31   $    .25   $    .57   $   1.29    $   2.42
     Cumulative effect to August 1, 1992 of
       change in accounting for income
       taxes................................      (.12)        --         --         --        (.12)
                                              --------   --------   --------   --------    --------
     Net income.............................  $    .19   $    .25   $    .57   $   1.29    $   2.30
                                              ========   ========   ========   ========    ========
  Dividends per share.......................  $   .075   $   .075   $   .075   $   .075    $    .30
  Average number of shares of common stock
     outstanding (in thousands).............     8,254      8,254      8,254      8,254       8,254
</TABLE>
 
(1) Includes pre-tax income of $4 million relating to a settlement and a pre-tax
    reserve of $2 million relating to EPA litigation (see Notes 11 and 12).
 
                                      F-15
<PAGE>   52
 
                               HOLLY CORPORATION
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                          JULY 31, 1994, 1993 AND 1992
 
   OPERATING DATA
 
<TABLE>
<CAPTION>
                                            FIRST      SECOND       THIRD      FOURTH
                                           QUARTER     QUARTER     QUARTER     QUARTER      YEAR
                                           -------     -------     -------     -------     -------
                                                              (BARRELS PER DAY)
<S>                                        <C>         <C>         <C>         <C>         <C>
1994
  Sales of refined products..............   58,500      62,300      73,100      69,600      65,800
  Refinery production....................   54,100      66,000      69,900      67,500      64,300
1993
  Sales of refined products..............   63,400      66,100      70,700      70,900      67,800
  Refinery production....................   60,600      69,000      66,500      65,200      65,300
</TABLE>
 
                                      F-16
<PAGE>   53
 
                               HOLLY CORPORATION
 
                      CONDENSED CONSOLIDATED BALANCE SHEET
                   ($ IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                    UNAUDITED
                                                                                    APRIL 30,
                                                                                       1995
                                                                                    ----------
<S>                                                                                 <C>
ASSETS
Current assets
  Cash and cash equivalents.......................................................   $  16,940
  Accounts receivable: Trade......................................................      39,742
                         Crude oil................................................      46,386
                                                                                    ----------
                                                                                        86,128
  Inventories: Crude oil and refined products.....................................      33,631
               Materials and supplies.............................................       6,349
                                                                                    ----------
                                                                                        39,980
  Income taxes receivable.........................................................       3,822
  Prepayments and other...........................................................       9,435
                                                                                    ----------
          Total current assets....................................................     156,305
Properties, plants and equipment, at cost.........................................     245,713
Less accumulated depreciation, depletion and amortization.........................     115,778
                                                                                    ----------
                                                                                       129,935
Other assets......................................................................       4,193
                                                                                    ----------
                                                                                     $ 290,433
                                                                                    ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Accounts payable................................................................   $ 106,935
  Accrued liabilities.............................................................      14,763
  Income taxes payable............................................................         625
  Current maturities of long-term debt............................................       5,608
                                                                                    ----------
          Total current liabilities...............................................     127,931
Deferred income taxes.............................................................      17,371
Long-term debt, less current maturities...........................................      68,832
Contingencies
Stockholders' equity
  Preferred stock, $1.00 par value -- 1,000,000 shares authorized;
     none issued..................................................................          --
  Common stock, $.01 par value -- 20,000,000 shares authorized;
     8,650,282 shares issued......................................................          87
  Additional capital..............................................................       6,132
  Retained earnings...............................................................      71,059
                                                                                    ----------
                                                                                        77,278
  Common stock held in treasury, at cost -- 396,768 shares........................        (569)
  Deferred charge -- amount due from ESOP.........................................        (410)
                                                                                    ----------
          Total stockholders' equity..............................................      76,299
                                                                                    ----------
                                                                                     $ 290,433
                                                                                    ==========
</TABLE>
 
See accompanying notes to Condensed Consolidated Financial Statements.
 
                                      F-17
<PAGE>   54
 
                               HOLLY CORPORATION
 
                   CONDENSED CONSOLIDATED STATEMENT OF INCOME
 
<TABLE>
<CAPTION>
                                                                               UNAUDITED
                                                                           NINE MONTHS ENDED
                                                                               APRIL 30,
                                                                         ---------------------
                                                                           1995         1994
                                                                         --------     --------
                                                                            ($ IN THOUSANDS
                                                                           EXCEPT PER SHARE
                                                                               AMOUNTS)
<S>                                                                      <C>          <C>
Revenues:
  Net sales............................................................  $453,786     $399,701
  Miscellaneous........................................................       947          440
                                                                         --------     --------
                                                                          454,733      400,141
Costs and expenses:
  Cost of sales........................................................   412,322      337,921
  General and administrative...........................................     9,629        9,153
  Depreciation, depletion and amortization.............................    11,735        8,051
  Exploration expenses, including dry holes............................     2,451        2,706
  Miscellaneous........................................................       107          158
                                                                         --------     --------
                                                                          436,244      357,989
                                                                         --------     --------
Income from operations.................................................    18,489       42,152
Other:
  Interest income......................................................       732          254
  Interest expense.....................................................    (6,337)      (6,802)
                                                                         --------     --------
                                                                           (5,605)      (6,548)
                                                                         --------     --------
Income before income taxes and cumulative effect of
  change in accounting for turnarounds.................................    12,884       35,604
Income tax provision:
  Current..............................................................     3,586       12,416
  Deferred.............................................................     1,439        1,919
                                                                         --------     --------
                                                                            5,025       14,335
                                                                         --------     --------
Income before cumulative effect of change in accounting method.........     7,859       21,269
Cumulative effect to August 1, 1994 of change in accounting for
  turnarounds,
  net of taxes.........................................................     5,703           --
                                                                         --------     --------
Net income.............................................................  $ 13,562     $ 21,269
                                                                         ========     ========
Income per common share:
  Income before cumulative effect of change in accounting method.......  $    .95     $   2.58
  Cumulative effect to August 1, 1994 of change in accounting for
     turnarounds, net of taxes.........................................       .69           --
                                                                         --------     --------
  Net income...........................................................  $   1.64     $   2.58
                                                                         ========     ========
Cash dividends paid per share..........................................  $     30     $    .25
Average number of shares of common stock outstanding (in thousands)....     8,254        8,254
</TABLE>
 
See accompanying notes to Condensed Consolidated Financial Statements.
 
                                      F-18
<PAGE>   55
 
                               HOLLY CORPORATION
 
                 CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                               UNAUDITED
                                                                           NINE MONTHS ENDED
                                                                               APRIL 30,
                                                                         ---------------------
                                                                           1995         1994
                                                                         --------     --------
                                                                           ($ IN THOUSANDS)
<S>                                                                      <C>          <C>
Cash flows from operating activities:
  Net income...........................................................  $ 13,562     $ 21,269
  Adjustments to reconcile net income to net cash provided by
     operating activities:
       Depreciation, depletion and amortization........................    11,735        8,051
       Deferred income taxes...........................................     1,439        1,919
       Dry hole costs and leasehold impairment.........................       652        1,037
       Cumulative effect to August 1, 1994 of change in accounting
          for turnarounds..............................................    (5,703)          --
       Changes in other assets and liabilities:
          (Increase) decrease in accounts receivable...................     8,152       (1,282)
          Decrease in inventories......................................     4,015          869
          Increase in income taxes receivable..........................    (3,094)          --
          (Increase) decrease in prepayments and other.................     1,458         (614)
          Increase (decrease) in accounts payable......................    (5,149)          21
          Increase (decrease) in accrued liabilities...................     2,473       (1,566)
          Decrease in income taxes payable.............................      (111)      (2,452)
       Other, net......................................................    (2,696)         630
                                                                         --------     --------
     Net cash provided by operating activities.........................    26,733       27,882
Cash flows from financing activities:
  Reduction in long-term debt..........................................        (8)          (8)
  Cash dividends.......................................................    (2,476)      (2,063)
                                                                         --------     --------
     Net cash used for financing activities............................    (2,484)      (2,071)
Cash flows from investing activities:
  Additions to properties, plants and equipment........................   (10,606)     (18,505)
                                                                         --------     --------
     Net cash used for investing activities............................   (10,606)     (18,505)
                                                                         --------     --------
Cash and cash equivalents:
  Increase for the period..............................................    13,643        7,306
  Beginning of year....................................................     3,297        6,631
                                                                         --------     --------
  End of period........................................................  $ 16,940     $ 13,937
                                                                         ========     ========
Supplemental disclosure of cash flow information:
  Cash paid during period for:
     Interest..........................................................  $  4,249     $  4,569
     Income taxes......................................................  $  6,744     $ 14,752
</TABLE>
 
See accompanying notes to Condensed Consolidated Financial Statements.
 
                                      F-19
<PAGE>   56
 
                               HOLLY CORPORATION
 
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE A -- PRESENTATION OF FINANCIAL STATEMENTS
 
     In the opinion of the Company, the accompanying consolidated financial
statements, which have not been audited by independent accountants (except for
the consolidated balance sheet as of July 31, 1994), reflect all adjustments
(consisting only of normal recurring adjustments, except for the accounting
change as described in Note B below) necessary to present fairly the Company's
consolidated financial position as of April 30, 1995, the consolidated results
of operations for the nine months ended April 30, 1995 and 1994, and
consolidated cash flows for the nine months ended April 30, 1995 and 1994.
 
     Certain notes and other information have been condensed or omitted.
Therefore, these financial statements should be read in conjunction with the
consolidated financial statements and related notes included in the Company's
Annual Report on Form 10-K for the fiscal year ended July 31, 1994.
 
     References herein to the "Company" are for convenience of presentation and
may include obligations, commitments or contingencies that pertain solely to one
or more affiliates of the Company. Results of operations for the first nine
months of fiscal 1995 are not necessarily indicative of the results to be
expected for the full year.
 
NOTE B -- ACCOUNTING CHANGE
 
     Effective August 1, 1994, the Company changed its method of accounting for
turnaround costs. Turnarounds consist of preventive maintenance on major
processing units as well as the shutdown and restart of all units, and generally
are scheduled at two to three year intervals. Previously, the Company estimated
the costs of the next scheduled turnaround and ratably accrued the related
expenses prior to the actual turnaround. To provide for a better matching of
turnaround costs with revenues, the Company changed its accounting method for
turnaround costs to one that results in the amortization of costs incurred over
the period until the next scheduled turnaround. The cumulative effect of this
accounting change through the 1994 fiscal year was an increase in net income in
the current year of $5,703,000, or $.69 per common share. Excluding the
cumulative effect, the change increased net income for the nine months ended
April 30, 1995 by $950,000 or $.12 per common share. If the accounting change
for turnaround costs had been retroactively applied, pro forma net income for
the nine months ended April 30, 1994 would have increased by $1,162,000 or $.14
per share over what was originally reported and net income for the full 1994
fiscal year would have increased by $1,266,000 or $.15 per share to pro forma
net income amounts for the 1994 fiscal year of $21,983,000 or $2.66 per share.
 
NOTE C -- CONTINGENCIES
 
     In July 1993, the DOJ filed suit against Navajo alleging that, beginning in
September 1990 and continuing through the present, Navajo has violated and
continues to violate RCRA and implementing regulations of the EPA by treating,
storing and disposing of certain hazardous wastes without compliance with
regulatory requirements. The Company believes that the parties are in the final
stage of negotiating a resolution of the litigation. If settled as anticipated,
the Company would close the existing evaporation ponds of its wastewater
management system at a cost believed to be substantially less than $1 million.
The settlement also contemplates that the Company would implement one of several
alternatives to the existing wastewater treatment system. Depending upon which
approach is utilized, the Company could incur total costs of approximately $3
million over the next several years. The costs to implement an alternative
wastewater treatment system would be capitalized and amortized over the future
useful life of the resulting asset in accordance with generally accepted
accounting principles. The settlement with the DOJ also is expected to involve
the payment of a civil penalty of less than $2 million. In fiscal 1993, the
Company recorded a $2 million reserve for the litigation.
 
                                      F-20
<PAGE>   57
 
                               HOLLY CORPORATION
 
       NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- CONTINUED
 
NOTE D -- SUBSEQUENT EVENT
 
     The Company filed a Form S-3 Registration Statement on May 17, 1995
relating to the sale of up to 2,500,000 shares of common stock (before an
over-allotment option of up to 375,000 shares granted to the underwriters for
such offering by certain selling stockholders (the "Selling Stockholders")). Of
those shares, 1,500,000 shares will be sold by the Company and 1,000,000 shares
(plus up to 375,000 shares subject to the over-allotment option) will be sold by
the Selling Stockholders. The Company will not receive any portion of the
proceeds from the sale of shares of common stock by the Selling Stockholders.
 
     The Company will use $15 million of the net offering proceeds to pay for
certain capital improvements to enhance its Navajo Refinery, located in New
Mexico. It will use the balance of the net offering proceeds, together with
internally generated funds, for other capital improvement projects currently
being evaluated and/or for general corporate purposes.
 
                                      F-21
<PAGE>   58
 
- ------------------------------------------------------
- ------------------------------------------------------
 
  NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS NOT CONTAINED IN, OR INCORPORATED BY
REFERENCE IN, THIS PROSPECTUS, IN CONNECTION WITH THE OFFERING COVERED BY THIS
PROSPECTUS. IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE
RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY, THE SELLING STOCKHOLDERS
OR THE UNDERWRITERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A
SOLICITATION OF AN OFFER TO BUY, THE COMMON STOCK IN ANY JURISDICTION WHERE, OR
TO ANY PERSON TO WHOM, IT IS UNLAWFUL TO MAKE SUCH OFFER OR SOLICITATION.
NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL, UNDER
ANY CIRCUMSTANCES, CREATE AN IMPLICATION THAT THERE HAS NOT BEEN ANY CHANGE IN
THE FACTS SET FORTH IN THIS PROSPECTUS OR INCORPORATED BY REFERENCE HEREIN OR IN
THE AFFAIRS OF THE COMPANY SINCE THE DATE HEREOF.
 
                            ------------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
Available Information.................    3
Incorporation of Certain Documents by
  Reference...........................    3
Prospectus Summary....................    4
Risk Factors..........................    9
Use of Proceeds.......................   12
Capital Improvement Projects..........   12
Capitalization........................   13
Price Range of Common Stock and
  Dividend Policy.....................   14
Selected Financial Data...............   15
Management's Discussion and Analysis
  of Results of Operations and
  Financial Condition.................   17
Business..............................   22
Management and Directors..............   31
Selling Stockholders..................   33
Description of Common Stock...........   34
Underwriting..........................   34
Legal Matters.........................   35
Experts...............................   35
Index to Consolidated Financial
  Statements..........................  F-1
</TABLE>
     
- ------------------------------------------------------
- ------------------------------------------------------
 
- ------------------------------------------------------
- ------------------------------------------------------
   
                                1,000,000 SHARES
    
 
                                  [HOLLY LOGO]


                                  COMMON STOCK
                          ---------------------------
 
                                   PROSPECTUS
                          ---------------------------
 
                              MERRILL LYNCH & CO.
 
                                CS FIRST BOSTON
                                      , 1995
- ------------------------------------------------------
- ------------------------------------------------------
<PAGE>   59
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
   
     The following table sets forth the expenses to be paid by the Registrant in
connection with this Registration Statement. All such fees are estimates, other
than the fees payable to the SEC and the NASD.
    
 
   
<TABLE>
    <S>                                                                         <C>
    SEC Registration Fee......................................................  $  28,254
    NASD Filing Fee...........................................................      8,694
    Accounting Fees and Expenses..............................................     30,000
    Legal Fees and Expenses...................................................    100,000
    Blue Sky Fees and Expenses (including legal fees).........................      7,500
    Printing Expenses.........................................................    150,000
    Miscellaneous.............................................................      7,500
                                                                                ---------
              Total...........................................................  $ 331,948
                                                                                =========
</TABLE>
    
 
   
Substantially all the expenses of the Selling Stockholders (other than
underwriting discounts) will be borne by the Company.
    
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     The law of the State of Delaware authorizes corporations to limit the
personal liability of directors to corporations and their stockholders for
monetary damages for certain breaches of a director's fiduciary duties. The
Registrant's Restated Certificate of Incorporation provides that a director will
not be personally liable for monetary damages for the breach of his or her
fiduciary duties as a director, except for liability imposed by the General
Corporation Law of the State of Delaware or imposed by other law for (i) a
breach of the director's duty of loyalty to the Registrant or its stockholders,
(ii) acts or omissions not in good faith or which involve intentional misconduct
or a knowing violation of law, or (iii) a transaction from which the director
derived an improper personal benefit.
 
     The Bylaws of the Registrant provide that the Registrant shall indemnify
any person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding (other than an
action by or in the right of the Registrant) by reason of the fact that he or
she is or was a director, officer, employee or agent of the Registrant or is or
was serving at the request of the Company as a director, officer, employee or
agent of another entity or is or was the spouse or former spouse of any person
serving in such a capacity, to the fullest extent permitted by the General
Corporation Law of the State of Delaware provided such person gives the
Registrant appropriate notice and permits the Registrant, at its option, to
participate in or to direct in good faith any defense of such person. Pursuant
to the provisions of Section 145 of the General Corporation Law of the State of
Delaware, the Registrant has the power under specified circumstances to
indemnify such persons against expenses, judgments, fines and amounts paid in
settlement actually and reasonably incurred in connection with such action, suit
or proceeding.
 
     The power to indemnify generally applies only if such person acted in good
faith and in a manner he or she reasonably believed to be in the best interest,
or not opposed to the best interest, of the Registrant and, with respect to any
criminal action or proceeding, had no reasonable cause to believe his conduct
was unlawful. In actions brought by or in the right of the Registrant, however,
the power to indemnify applies only to expenses reasonably incurred in
connection with the defense and settlement of an action or suit and not to the
satisfaction of a judgment or settlement of the claim itself, and with the
further limitation that in such actions no indemnification shall be made in the
event of any adjudication of liability for the Corporation unless the court, in
its discretion, believes that in light of all the circumstances indemnification
should apply. The General Corporation Law of the State of Delaware further
specifically provides that the indemnification authorized thereby shall not be
deemed exclusive of any other rights to which any such officer or director may
be entitled under any bylaws, agreements, vote of stockholders or disinterested
directors, or otherwise.
 
                                      II-1
<PAGE>   60
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933, as amended (the "Securities Act") may be permitted to directors,
officers and controlling persons of the Registrant pursuant to the provisions
referred to above in this Item 15, or otherwise, the Registrant has been advised
that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act and
is therefore unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer, or controlling person of the Registrant
in the successful defense of any action, suit, or proceeding) is asserted by
such director, officer, or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question of whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed by
the final adjudication of such issue.
 
ITEM 16. EXHIBITS.
 
     The following is a list of all exhibits filed as a part of this
Registration Statement.

    
<TABLE>
<CAPTION>
       EXHIBIT
       NUMBER                                DESCRIPTION OF EXHIBITS
- ---------------------------------------------------------------------------------------------
<S>                  <C>
           1.1       -- Form of Purchase Agreement, dated as of           , among the
                        Registrant, the Selling Stockholders and Merrill Lynch, Pierce,
                        Fenner & Smith Incorporated and CS First Boston Corporation, as
                        representatives of the Underwriters.+
           4.1       -- Restated Certificate of Incorporation of the Registrant.*
           4.2       -- Revised Bylaws of the Registrant.*
           5         -- Opinion of Weil, Gotshal & Manges.*
          23.1       -- Consent of Weil, Gotshal & Manges (included in Exhibit 5).*
          23.2       -- Consent of Ernst & Young LLP.+
          24         -- Power of Attorney (included on page II-4 of this Registration
                        Statement).
</TABLE>
    
 
   
+ Filed herewith.
    

    
* Previously filed.
    
 
ITEM 17. UNDERTAKINGS.
 
     The undersigned Registrant hereby undertakes the following:
 
     (a)(1) For purposes of determining any liability under the Securities Act
of 1933, the information omitted from the form of prospectus filed as part of
this Registration Statement in reliance upon Rule 430A and contained in the form
of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or
497(h) under the Securities Act shall be deemed to be part of the Registration
Statement as of the time it was declared effective.
 
     (2) For the purpose of determining any liability under the Securities Act
of 1933, each post-effective amendment that contains a form of prospectus shall
be deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
 
     (b) For purposes of determining any liability under the Securities Act of
1933, each filing of the Registrant's annual report pursuant to Section 13(a) or
15(d) of the Securities Exchange Act of 1934 that is incorporated by reference
in this Registration Statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
     (c) See Item 15.
 
                                      II-2
<PAGE>   61
 
                               POWER OF ATTORNEY
 
     Each person whose signature to this Registration Statement appears below
hereby appoints Lamar Norsworthy, Henry A. Teichholz, Christopher L. Cella and
Karl N. Knapp, and each of them, any one of whom may act without the joinder of
the other, as his attorney-in-fact to sign on his behalf individually and in the
capacity stated below and to file all amendments and post-effective amendments
to this Registration Statement, which amendments may make such changes in and
additions to this Registration Statement as such attorney-in-fact may deem
necessary or appropriate.
 
                                   SIGNATURES

    
     Pursuant to the requirements of the Securities Act, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Amendment No. 2 to
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Dallas, State of Texas, on June 27, 1995.
    

 
                                            HOLLY CORPORATION
 
                                            By:   /s/  HENRY A. TEICHHOLZ
                                                      Henry A. Teichholz
                                                Vice President, Treasurer and
                                                           Controller
 
     Pursuant to the requirements of the Securities Act, this Amendment No. 2 to
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

    
<TABLE>
<CAPTION>
              SIGNATURE                                 TITLE                         DATE
- -------------------------------------  ----------------------------------------  --------------
<S>                                    <C>                                       <C>
                 *                     Chairman of the Board, President and      June 27, 1995
         Lamar Norsworthy              Chief Executive Officer (Principal
                                       Executive Officer)
 
                 *                     Executive Vice President -- Refining      June 27, 1995
          Jack P. Reid                 and Director

   /s/  HENRY A. TEICHHOLZ             Vice President, Treasurer and Controller  June 27, 1995
        Henry A. Teichholz             (Principal Financial and Accounting
                                       Officer)
 
                 *                     Director                                  June 27, 1995
         W. John Glancy
 
                 *                     Director                                  June 27, 1995
      Marcus R. Hickerson
 
                 *                     Director                                  June 27, 1995
           A. J. Losee
 
                 *                     Director                                  June 27, 1995
       Robert G. McKenzie
 
                 *                     Director                                  June 27, 1995
      Thomas W. Matthews, II
 
                 *                     Director                                  June 27, 1995
          E. I. Parsons
 
*By: /s/ HENRY A. TEICHHOLZ
     Henry A. Teichholz
     Attorney-in-Fact
</TABLE>
    
 
                                      II-3
<PAGE>   62
 
                               INDEX TO EXHIBITS

    
<TABLE>
<CAPTION>
                                                                                   SEQUENTIALLY
  EXHIBIT                                                                           NUMBERED
    NO.                            DESCRIPTION OF EXHIBITS                            PAGE
- ----------------------------------------------------------------------------------------------
<S>        <C>                                                                     <C>
    1.1    -- Form of Purchase Agreement, dated as of           , among the
              Registrant, the Selling Stockholders and Merrill Lynch, Pierce,
              Fenner & Smith Incorporated and CS First Boston Corporation, as
              representatives of the Underwriters.+
    4.1    -- Restated Certificate of Incorporation of the Registrant.*
    4.2    -- Revised Bylaws of the Registrant.*
    5      -- Opinion of Weil, Gotshal & Manges.*
   23.1    -- Consent of Weil, Gotshal & Manges (included in Exhibit 5).*
   23.2    -- Consent of Ernst & Young LLP.+
   24      -- Power of Attorney (included on page II-4 of this Registration
              Statement).
</TABLE>
    

    
+ Filed herewith.
    

    
* Previously filed.
    


<PAGE>   1




                                                          DRAFT OF JUNE 27, 1995


                                1,000,000 Shares
                               HOLLY CORPORATION
                            (a Delaware corporation)
                                  Common Stock
                           (Par Value $.01 Per Share)

                               PURCHASE AGREEMENT


                                                           _______________, 1995

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith Incorporated
CS FIRST BOSTON CORPORATION
  as Representatives of the several Underwriters
c/o MERRILL LYNCH & CO.
   Merrill Lynch, Pierce, Fenner & Smith Incorporated
   North Tower
   World Financial Center
   250 Vesey Street
   New York, New York 10281

Dear Sirs:

                 Each of the shareholders of Holly Corporation, a Delaware
corporation (the "Company"), named in Schedule B hereto (the "Selling
Shareholders"), confirm their agreements with you, and each of the other
underwriters named in Schedule A hereto (collectively, the "Underwriters,"
which term shall also include any underwriter substituted as hereinafter
provided in Section 10), for whom Merrill Lynch & Co., Merrill Lynch, Pierce,
Fenner & Smith Incorporated ("Merrill Lynch") and CS First Boston Corporation
("CS First Boston") are acting as representatives (in such capacity, Merrill
Lynch and CS First Boston shall hereinafter be referred to collectively as the
"Representatives"), with respect to (i) the sale by the Selling Shareholders,
acting severally and not jointly, and the purchase by the Underwriters, acting
severally and not jointly, of the respective numbers of shares of Common Stock,
par value $.01 per share, of the Company ("Common Stock") set forth in said
Schedule A, and (ii) the grant by the Selling Shareholders to the Underwriters,
acting severally and not jointly, of the option described in Section 2(b)
hereof to purchase all or any part of the Underwriters' pro rata portion of up
to an additional 150,000 shares of Common Stock to cover over- allotments, in
each case except as may otherwise be provided in the Pricing Agreement (as
hereinafter defined).  The 1,000,000 shares of Common Stock to be purchased by
the
<PAGE>   2
Underwriters (the "Initial Securities") and all or any part of the 150,000
shares of Common Stock subject to the option described in Section 2(b) hereof
(the "Option Securities") are hereinafter collectively referred to as the
"Securities."

                 Prior to the purchase and public offering of the Securities by
the several Underwriters, the Company, the Selling Shareholders and the
Representatives, acting on behalf of the several Underwriters, shall enter into
an agreement substantially in the form of Exhibit A hereto (the "Pricing
Agreement").  The Pricing Agreement may take the form of an exchange of any
standard form of written telecommunications among the Company, the Selling
Shareholders and the Representatives and shall specify such applicable
information as indicated in Exhibit A hereto.  The offering of the Securities
will be governed by this Agreement, as supplemented by the Pricing Agreement.
From and after the date of the execution and delivery of the Pricing Agreement,
this Agreement shall be deemed to incorporate the Pricing Agreement.

                 The Company has filed with the Securities and Exchange
Commission (the "Commission") a registration statement on Form S-3 (Commission
File No. 33-59411), which includes a related preliminary prospectus, to effect
the registration of the Securities under the Securities Act of 1933, as amended
(the "1933 Act"), has filed such amendments thereto, if any, and such amended
preliminary prospectuses as may have been required to the date hereof, and will
file such additional amendments thereto and such  prospectus supplements as may
hereafter be required.  Such registration statement (as amended, if applicable)
and the prospectus constituting a part thereof (including in each case all
documents, if any, incorporated by reference therein and the information, if
any, deemed to be part thereof pursuant to Rule 430A(b) or Rule 434 of the
rules and regulations of the Commission under the 1933 Act (the "1933 Act
Regulations")), as from time to time amended or supplemented pursuant to the
1933 Act or otherwise, are hereinafter referred to as the "Registration
Statement."  The prospectus in the form included in the Registration Statement
is hereinafter referred to as the "Prospectus," except that if any revised or
supplemented Prospectus shall be provided to the Underwriters by the Company
for use in connection with the offering of the Securities which differs from
the Prospectus on file at the Commission at the time the Registration Statement
becomes effective (whether or not such revised Prospectus is required to be
filed by the Company pursuant to Rule 424(b) of the 1933 Act Regulations), the
term "Prospectus"  shall refer to such revised Prospectus from and after the
time it is first provided to the Underwriters for such use.  If the Company
elects to rely on Rule 434 of the 1933 Act Regulations, all references to the
"Prospectus" shall be deemed to include, without limitation, the form of
prospectus and the term sheet, taken together, provided to the Underwriters by
the Company in accordance with Rule 434 of the 1933 Act Regulations (the "Rule
434 Prospectus").  If the Company files a registration statement to register a
portion of the Securities and relies on Rule 462(b) for such registration
statement to become effective upon filing with the Commission (the "Rule 462
Registration Statement"), then any reference to the "Registration Statement"
shall be deemed to refer to both the registration statement referred to above
(Commission File No. 33-59411) and the Rule 462 Registration Statement, in each
case as amended from time to time.






                                     -2-
<PAGE>   3
                 The Company and the Selling Shareholders understand that the
Underwriters propose to make a public offering of the Securities as soon as the
Representatives deem advisable after the Registration Statement becomes
effective and the Pricing Agreement has been executed and delivered.

                 SECTION 1. Representations and Warranties.  (a) The Company
represents and warrants to each Underwriter as of the date hereof and as of the
date of the Pricing Agreement (such latter date being hereinafter referred to
as the "Representation Date") as follows:

                          (i)     At the time the Registration Statement
          becomes effective and at the Representation Date, the Registration
          Statement will comply in all material respects with the requirements
          of the 1933 Act and the 1933 Act Regulations and will not contain an
          untrue statement of a material fact or omit to state a material fact
          required to be stated therein or necessary to make the statements
          therein not misleading.  The Prospectus, at the Representation Date
          (unless the term "Prospectus" refers to a Prospectus which has been
          provided to the Underwriters by the Company for use in connection
          with the offering of the Securities which differs from the Prospectus
          on file at the Commission at the time the Registration Statement
          becomes effective, in which case at the time such Prospectus is first
          provided to the Underwriters for such use) and at Closing Time (as
          hereinafter defined), will not include an untrue statement of a
          material fact or omit to state a material fact necessary in order to
          make the statements therein, in the light of the circumstances under
          which they were made, not misleading; provided, however, that the
          representations and warranties in this subsection shall not apply to
          statements in or omissions from the Registration Statement or
          Prospectus made in reliance upon and in conformity with information
          furnished to the Company in writing by any Underwriter through
          Merrill Lynch expressly for use in the Registration Statement or
          Prospectus.

                          (ii)    The documents incorporated or deemed to be
         incorporated by reference in the Prospectus, at the time they were or
         hereafter are filed with the Commission, complied and will comply in
         all material respects with the requirements of the Securities Exchange
         Act of 1934, as amended (the "1934 Act"), and the rules and
         regulations of the Commission under the 1934 Act (the "1934 Act
         Regulations"), and, when read together with the other information in
         the Prospectus, at the time the Registration Statement and any
         amendments thereto become effective and at Closing Time, will not
         contain an untrue statement of a material fact or omit to state a
         material fact required to be stated therein or necessary to make the
         statements therein, in the light of the circumstances under which they
         were made, not misleading.





                                      -3-
<PAGE>   4
                          (iii)   Ernst & Young LLP, the accountants who
         certified the consolidated financial statements and supporting
         schedules included in or incorporated by reference into the
         Registration Statement and the Prospectus are independent public
         accountants with respect to the Company and its Subsidiaries (as
         hereinafter defined) as required by the 1933 Act and the 1933 Act
         Regulations.

                          (iv)    The consolidated financial statements,
         including the notes thereto, included in or incorporated by reference
         into the Registration Statement and the Prospectus present fairly the
         consolidated financial position of the Company and its Subsidiaries as
         at the dates indicated and the consolidated results of their
         operations for the periods specified; except as otherwise stated
         therein, such financial statements have been prepared in conformity
         with generally accepted accounting principles applied on a consistent
         basis; and the supporting schedules included in or incorporated by
         reference into the Registration Statement present fairly the
         information required to be stated therein.

                          (v)     Since the respective dates as of which
         information is given in the Registration Statement and the Prospectus,
         except as otherwise stated therein, (A) there has been no material
         adverse change in the condition, financial or otherwise, or in the
         results of operations, business or business prospects of the Company
         and its Subsidiaries considered as one enterprise, whether or not
         arising in the ordinary course of business, (B) there have been no
         transactions entered into by the Company or any of its Subsidiaries,
         other than those in the ordinary course of business, which are
         material with respect to the Company and its Subsidiaries considered
         as one enterprise, and (C) except for regular quarterly dividends
         declared, paid or made by the Company, there has been no dividend or
         distribution of any kind declared, paid or made by the Company on any
         class of its capital stock.

                          (vi)    The Company has been duly incorporated and is
         validly existing as a corporation in good standing under the laws of
         the State of Delaware and has all necessary corporate power and
         authority to own, lease and operate its properties and to conduct its
         business as described in the Prospectus; and the Company is duly
         qualified as a foreign corporation to transact business and is in good
         standing in each jurisdiction in which such qualification is required,
         whether by reason of the ownership or leasing of property or the
         conduct of business, except where the failure to so qualify could not
         reasonably be expected to result in a material adverse effect on the
         condition, financial or otherwise, or the results of operations or
         business of the Company and its Subsidiaries considered as one
         enterprise.





                                      -4-
<PAGE>   5
                          (vii)   Each subsidiary of the Company named in
         Schedule C hereto (each, a "Subsidiary" and collectively, the
         "Subsidiaries") which is a corporation has been duly incorporated and
         is validly existing as a corporation in good standing under the laws
         of the jurisdiction of its incorporation, has all necessary corporate
         power and authority to own, lease and operate its properties and to
         conduct its business as described in the Prospectus and is duly
         qualified as a foreign corporation to transact business and is in good
         standing in each jurisdiction in which such qualification is required,
         whether by reason of the ownership or leasing of property or the
         conduct of business, except where the failure to so qualify could not
         reasonably be expected to result in a material adverse effect on the
         condition, financial or otherwise, or the results of operations or
         business of the Company and its Subsidiaries considered as one
         enterprise; all of the issued and outstanding capital stock of each
         Subsidiary which is a corporation has been duly authorized and validly
         issued, is fully paid and non-assessable and is owned by the Company,
         directly or indirectly, free and clear of any security interest,
         mortgage, pledge, lien, encumbrance, claim or equity.

                          (viii)  Montana Refining Company ("MRC") is a general
         partnership duly formed pursuant to its partnership agreement and the
         laws of the State of Montana, and has all necessary partnership power
         and authority to own, lease and operate its properties and conduct its
         business as described in the Prospectus and is duly qualified or
         registered as a foreign partnership in each jurisdiction in which such
         qualification or registration is required, whether by reason of the
         ownership or leasing of property or the conduct of business, except
         where the failure to so qualify or register could not reasonably be
         expected to result in  a material adverse effect on the condition,
         financial or otherwise, or the results of operations or business of
         the Company and its Subsidiaries considered as one enterprise;  all
         the outstanding partnership interests in MRC have been duly authorized
         and validly issued, are fully paid and non-assessable and are owned by
         the Company, directly or indirectly, free and clear of any security
         interest, mortgage, pledge, lien, encumbrance, claim or equity.

                          (ix)    The authorized, issued and outstanding
         capital stock of the Company is as set forth in the Prospectus under
         the caption "Capitalization;" the shares of issued and outstanding
         Common Stock, including the Securities to be purchased by the
         Underwriters from the Selling Shareholders, have been duly authorized
         and validly issued, and are fully paid and non-assessable; none of the
         shares of issued and outstanding Common Stock has been issued in
         violation of any preemptive, subscription or other similar (including
         contractual) rights; neither the offering nor sale of the Securities
         hereunder is subject to any preemptive,





                                      -5-
<PAGE>   6
         subscription or other similar (including contractual) rights; and the
         Common Stock conforms to all statements relating thereto contained in
         the Prospectus.

                          (x)     This Agreement has been duly authorized,
         executed and delivered by the Company and, at the Representation Date,
         the Pricing Agreement will be duly authorized, executed and delivered
         by the Company; this Agreement constitutes a valid and binding
         obligation of the Company, enforceable against the Company in
         accordance with its terms, and, at the Representation Date, the
         Pricing Agreement will constitute a valid and binding obligation of
         the Company, enforceable against the Company in accordance with its
         terms (except to the extent that (A) the enforceability hereof may be
         subject to applicable bankruptcy, insolvency, fraudulent conveyance,
         fraudulent transfer, reorganization, moratorium, liquidation,
         conservatorship or other laws affecting creditors' rights generally,
         (B) equitable principles may limit the availability of equitable
         remedies in case of a breach hereof (regardless of whether such
         remedies are sought in a proceeding at law or in equity) and (C) the
         rights to indemnity and contribution granted hereunder may be limited
         by applicable federal or state securities laws or the public policy
         underlying such laws).

                          (xi)    Neither the Company nor any of its
         Subsidiaries which is a corporation is in violation of its charter or
         bylaws, nor is MRC in violation of its agreement of partnership, and
         neither the Company nor any of its Subsidiaries is in default in the
         performance or observance of any material obligation, agreement,
         covenant or condition contained in any contract, indenture, mortgage,
         loan agreement, note, lease or other instrument to which the Company
         or any of its Subsidiaries is a party or by which it or any of them
         may be bound, or to which any of the property or assets of the Company
         or any of its Subsidiaries is subject, which violation or default
         could reasonably be expected to result in a material adverse effect on
         the condition, financial or otherwise, or on the results of operations
         or business of the Company and its Subsidiaries considered as one
         enterprise; and the execution, delivery and performance of this
         Agreement and the Pricing Agreement and the  consummation of the
         transactions contemplated herein and therein have been duly authorized
         by all necessary corporate action and will not conflict with or
         constitute a breach of, or default under, or result in the creation or
         imposition of any lien, charge or encumbrance upon any property or
         assets of the Company or any of its Subsidiaries pursuant to, any
         contract, indenture, mortgage, loan agreement, note, lease or other
         instrument to which the Company or any of its Subsidiaries is a party
         or by which it or any of them may be bound, or to which any of the
         property or assets of the Company or any of its Subsidiaries is
         subject, nor will such action result in any violation of the
         provisions of the charter or bylaws of the Company or any of its





                                      -6-
<PAGE>   7
         Subsidiaries which is a corporation, or the agreement of partnership
         of MRC, or of any applicable law, administrative regulation or
         administrative or court decree.

                          (xii)   No labor dispute with the employees of the
         Company or any of its Subsidiaries exists or, to the knowledge of the
         Company, is imminent, which could reasonably be expected to result in
         any material adverse change in the condition, financial or otherwise,
         or in the results of operations or business of the Company and its
         Subsidiaries considered as one enterprise.

                          (xiii)  Other than as disclosed in the Registration
         Statement and the Prospectus, there is no action, suit or proceeding
         before or by any court or governmental agency or body, domestic or
         foreign, now pending, or, to the knowledge of the Company, threatened
         against or affecting the Company or any of its Subsidiaries, which (A)
         is required to be disclosed in the Registration Statement and the
         Prospectus that is not disclosed therein, (B) could reasonably be
         expected to result in any material adverse change in the condition,
         financial or otherwise, or in the results of operations or business of
         the Company and its Subsidiaries considered as one enterprise, or
         which could reasonably be expected to materially and adversely affect
         the properties or assets thereof, or (C) might materially and
         adversely affect the consummation of the transactions contemplated by
         this Agreement; all pending legal or governmental proceedings to which
         the Company or any Subsidiary is a party or of which any of their
         respective properties or assets is the subject which are not described
         in the Registration Statement, including ordinary routine litigation
         incidental to their businesses, are, considered in the aggregate, not
         material to the financial condition, results of operations or business
         prospects of the Company and its Subsidiaries considered as one
         enterprise.

                          (xiv)   There are no contracts or documents of the
         Company or any of its Subsidiaries which are required to be filed as
         exhibits to or incorporated by reference into the Registration
         Statement by the 1933 Act, the 1933 Act Regulations, the 1934 Act or
         the 1934 Act Regulations which have not been so filed or incorporated
         by reference.

                          (xv)    The Company and its Subsidiaries have good
         title to all properties and assets described in the Prospectus as
         owned by them and valid and enforceable leases for all of the
         properties and assets, real or personal, described in the Prospectus
         as leased by them, in each case free and clear of any security
         interests, mortgages, pledges, liens, encumbrances or charges of any
         kind, other than those which (A) are described in the Prospectus or
         (B) could not reasonably be expected to have a material adverse effect
         on the condition, financial or otherwise, or on the





                                      -7-
<PAGE>   8
         results of operations or business of the Company and its Subsidiaries
         considered as one enterprise.

                          (xvi)   No authorization, approval or consent of, or
         registration or filing with, any court or governmental authority or
         agency is necessary in connection with the sale of the Securities
         hereunder, except such as may be required under the 1933 Act or the
         1933 Act Regulations or state securities laws.

                          (xvii)  The Company and each of its Subsidiaries
         carry insurance in such amounts and covering such risks as is
         reasonably necessary for the conduct of their respective businesses
         and is customary for companies engaged in similar businesses.

                          (xviii) Each contract, agreement or arrangement to
         which the Company or any of its Subsidiaries is a party or by which
         any of them is bound, or to which any of the property or assets of the
         Company or any of its Subsidiaries is subject, which is material to
         the condition, financial or otherwise, or the results of operations or
         business of the Company and its Subsidiaries considered as one
         enterprise, has been duly and validly authorized, executed and
         delivered by the Company or such Subsidiary, as applicable, and
         neither the Company nor any of its Subsidiaries is in breach or
         default of any obligation, agreement, covenant or condition contained
         in any such contract, agreement or arrangement; none of such
         contracts, agreements or arrangements has been assigned by the Company
         or any of its Subsidiaries, and the Company knows of no present
         condition or fact which would prevent compliance by the Company or any
         of its Subsidiaries or any other party thereto with the terms of any
         such contract, agreement or arrangement in all material respects;
         neither the Company nor any of its Subsidiaries has any present
         intention to exercise any rights that it may have to cancel any such
         contract, agreement or arrangement or otherwise to terminate its
         rights and obligations thereunder, and none of them has any knowledge
         that any other party to any such contract, agreement or arrangement
         has any intention not to render full performance in all material
         respects as contemplated by the terms thereof.

                          (xix)   Except as disclosed in the Prospectus,
         neither the Company nor any of its Subsidiaries is in violation of any
         law, ordinance, governmental rule or regulation or court decree to
         which the Company or any of its Subsidiaries or any of their
         respective properties or assets is subject, except where such
         violation could not reasonably be expected to have a material adverse
         effect on the condition, financial or otherwise, the results of
         operations or business of the Company and its Subsidiaries considered
         as one enterprise; without limiting the generality of the foregoing,
         neither the Company nor any of its Subsidiaries has violated any
         foreign,





                                      -8-
<PAGE>   9
         federal, state or local law or regulation relating to the protection
         of human health and safety, the environment or hazardous or toxic
         substances or wastes, pollutants or contaminants ("Environmental
         Laws") or the terms of any licenses, permits, consents, orders,
         certificates or authorizations required of them under applicable
         Environmental Laws, nor any federal or state law relating to
         discrimination in the hiring, promotion or pay of employees nor any
         applicable federal or state wages and hours laws, nor any applicable
         federal or state wages and hours laws, nor any provisions of the
         Employee Retirement Income Security Act, as amended ("ERISA"), or the
         rules and regulations promulgated thereunder, except in each case (A)
         as disclosed in the Prospectus or (B) where such violation could not
         reasonably  be expected to have a material adverse effect on the
         condition, financial or otherwise, or the results of operations or
         business of the Company and its Subsidiaries considered as one
         enterprise.

                          (xx)    The Company has conducted reviews of the
         effect of Environmental Laws on the business of the Company and its
         Subsidiaries, in the course of which it has identified and evaluated
         associated costs and liabilities (including, but not limited to
         capital and operating expenditures required for clean-up, closure of
         properties or compliance with any Environmental Laws or any permit,
         license or approval, any constraints on operating activities and any
         potential liabilities to third parties); on the basis of such review,
         the Company has reasonably concluded that, except as otherwise
         described in the Prospectus, such associated costs and liabilities
         could not reasonably be expected to have a material adverse effect on
         the condition, financial or otherwise, the results of operations or
         business of the Company and its Subsidiaries considered as one
         enterprise.

                          (xxi)   The Company and its Subsidiaries possess such
         material licenses, permits, consents, orders, certificates or
         authorizations issued by the appropriate state, federal or foreign
         regulatory agencies or bodies necessary to conduct the business now
         operated by them, and neither the Company nor any of its Subsidiaries
         has received any notice of proceedings relating to the revocation or
         modification of any such licenses, permits, consents, orders,
         certificates or authorizations which, singly or in the aggregate, if
         the subject of an unfavorable decision, ruling or finding, could
         reasonably be expected to materially and adversely affect the
         condition, financial or otherwise, the results of operations or
         business of the Company and its Subsidiaries considered as one
         enterprise.

                 (b)      Each of the Selling Shareholders severally represents
and warrants to each Underwriter as of the date hereof and as of the
Representation Date as follows:





                                      -9-
<PAGE>   10
                          (i)     To the extent that any statements or
         omissions in the Registration Statement or any amendment or supplement
         thereto are made in reliance upon and in conformity with information
         furnished in writing to the Company by such Selling Shareholder
         expressly for use therein, the Registration Statement, at the time the
         Registration Statement becomes effective and at the Representation
         Date, will comply in all material respects with the requirements of
         the 1933 Act and the 1933 Act Regulations and will not contain un
         untrue statement of a material fact or omit to state a material fact
         required to be stated therein or necessary to make the statements
         therein not misleading.  To the extent that any statements or
         omissions in the Prospectus or any amendment or supplement thereto are
         made in reliance upon and in conformity with information furnished in
         writing to the Company by such Selling Shareholder expressly for use
         therein, the Prospectus, at the time the Representation Date (unless
         the term "Prospectus" refers to a Prospectus which has been provided
         to the Underwriters by the Company for use in connection with the
         offering of the Securities which differs from the Prospectus on file
         at the Commission at the time the Registration Statement becomes
         effective, in which case at the time such Prospectus is first provided
         to the Underwriters for such use) and at Closing Time, will comply in
         all material respects with the requirements of the 1933 Act and the
         1933 Act Regulations and will not contain un untrue statement of a
         material fact or omit to state a material fact required to be stated
         therein or necessary to make the statements therein, in the light of
         the circumstances under which they were made, not misleading.

                          (ii)    Such Selling Shareholder has and will have at
         Closing Time good and marketable title to the Securities to be sold by
         such Selling Shareholder hereunder, free and clear of any pledge,
         lien, security interest, encumbrance, claim or restriction on transfer
         or other defect in title; such Selling Shareholder has full right,
         power and authority to sell, transfer and deliver the Securities to be
         sold by such Selling Shareholder hereunder and upon delivery of and
         payment for the Securities as herein contemplated, the Underwriters
         will acquire good and marketable title to such Securities, free and
         clear of any pledge, lien, security interest, encumbrance, claim or
         restriction on transfer or other defect in title.

                          (iii)   Such Selling Shareholder has duly executed
         and delivered in the form heretofore furnished to the Underwriters a
         Power of Attorney with Lamar Norsworthy, Henry Teichholz, Karl Knapp
         and Christopher Cella, or any of them, as attorney-in-fact (the
         "Attorney-in-Fact"), and a Custody Agreement with the Company, as
         custodian (the "Custodian"); the Attorney-in-Fact is authorized to
         execute and deliver this Agreement on behalf of such Selling
         Shareholder, to determine the purchase price to be paid by the
         Underwriters to such Selling Shareholder, as provided in Section 2(a)
         hereof, to authorize the delivery of the





                                      -10-
<PAGE>   11
         Securities to be sold by such Selling Shareholder hereunder, to accept
         payment therefor, and otherwise to act on behalf of such Selling
         Shareholder in connection with this Agreement.

                          (iv)    This Agreement, the Power of Attorney and the
         Custody Agreement have been duly authorized, executed and delivered by
         such Selling Shareholder and, at the Representation Date, the Pricing
         Agreement will be duly authorized, executed and delivered by such
         Selling Shareholder; this Agreement constitutes a valid and binding
         obligation of such Selling Shareholder, enforceable against such
         Selling Shareholder in accordance with its terms, and, at the
         Representation Date, the Pricing Agreement will constitute a valid and
         binding obligation of such Selling Shareholder, enforceable against
         such Selling Shareholder in accordance with its terms (except to the
         extent that (A) the enforceability  hereof or thereof may be subject
         to applicable bankruptcy, insolvency, fraudulent conveyance,
         fraudulent transfer, reorganization, moratorium, liquidation,
         conservatorship or other laws affecting creditors' rights generally,
         (B) equitable principles may limit the availability of equitable
         remedies in case of a breach hereof or thereof (regardless of whether
         such remedies are sought in a proceeding at law or in equity) and (C)
         the rights to indemnity and contribution granted hereunder may be
         limited by applicable federal or state securities laws or the public
         policy underlying such laws).

                 (c)      Any certificate signed by an officer of the Company
and delivered to the Representatives or to counsel for the Underwriters shall
be deemed a representation and warranty by the Company to each Underwriter as
to the matters covered thereby; and any certificate signed by or on behalf of
any Selling Shareholder and delivered to the Representatives or to counsel for
the Underwriters shall be deemed a representation and warranty by the Selling
Shareholder to each Underwriter as to the matters covered thereby.

                 SECTION 2. Sale and Delivery to Underwriters; Closing.  (a) On
the basis of the representations and warranties herein contained and subject to
the terms and conditions herein set forth, each of the Selling Shareholders,
severally and not jointly, agrees to sell to each Underwriter, severally and
not jointly, at the price per share set forth in the Pricing Agreement, the
number of Initial Securities set forth in Schedule B opposite such Selling
Shareholder's name; and each Underwriter, severally and not jointly, agrees to
purchase from each of the Selling Shareholders, at the price per share set
forth in the Pricing Agreement, the number of Initial Securities set forth in
Schedule A opposite the name of such Underwriter (except as otherwise provided
in the Pricing Agreement), plus any additional number of Initial Securities
which such Underwriter may become obligated to purchase pursuant to the
provisions of Section 10 hereof.





                                      -11-
<PAGE>   12
                          (i)     If the Company has elected not to rely upon
         Rule 430A under the 1933 Act Regulations, the initial public offering
         price and the purchase price per share to be paid by the several
         Underwriters for the Securities have each been determined and set
         forth in the Pricing Agreement, dated the date hereof, and an
         amendment to the Registration Statement and the Prospectus will be
         filed before the Registration Statement becomes effective.

                          (ii)    If the Company has elected to rely upon Rule
         430A under the 1933 Act Regulations, the purchase price per share to
         be paid by the several Underwriters for the Securities shall be an
         amount equal to the initial public offering price, less an amount per
         share to be determined by agreement among the Representatives, the
         Selling Shareholders and the Company.  The initial public offering
         price per share of the Securities shall be a fixed price to be
         determined by agreement among the Representatives, the Company and the
         Selling Shareholders.  The initial public offering price per share of
         the Securities shall not be higher than the last reported sale price
         (regular way) or the last reported asked price, whichever is higher,
         of the Common Stock on the American Stock Exchange immediately prior
         to determination of the initial public offering price.  The initial
         public offering price and the purchase price, when so determined,
         shall be set forth in the Pricing Agreement.  In the event that such
         prices have not been agreed upon and the Pricing Agreement has not
         been executed and delivered by all parties thereto by the close of
         business on the fourteenth business day following the date of this
         Agreement, this Agreement shall terminate forthwith, without liability
         of any party to any other party, except that Sections 4(b), 4(c), 6
         and 7 shall remain in effect.

                 (b)      In addition, on the basis of the representations and
warranties herein contained and subject to the terms and conditions herein set
forth, each of the Selling Shareholders hereby grants an option to the
Underwriters, severally and not jointly, to purchase the number of Option
Securities set forth in Schedule B opposite such Selling Shareholder's name, up
to an aggregate of an additional 150,000 shares of Common Stock, at the price
per share set forth in the Pricing Agreement, less an amount per share equal to
any dividends declared by the Company and payable on the Initial Securities but
not payable on the Option Securities.  The option hereby granted will expire 30
days after (i) the date the Registration Statement becomes effective, if the
Company has elected not to rely on Rule 430A under the 1933 Act Regulations, or
(ii) the Representation Date, if the Company has elected to rely on Rule 430A
under the 1933 Act Regulations, and may be exercised in whole or in part from
time to time only for the purpose of covering over- allotments which may be
made in connection with the offering and distribution of the Initial Securities
upon notice by the Representatives to the Company and the Selling Shareholders
setting forth the number of Option Securities as to which the several
Underwriters are then exercising the option and the time and date of payment
and delivery for such Option Securities.  Any such time and date of payment (a
"Date of Delivery") shall be determined by the Representatives, but shall not
be later than seven





                                      -12-
<PAGE>   13

full business days after the exercise of said option, nor in any event prior to
the Closing Time, nor less than three business days after receipt by the Company
and the Selling Shareholders of notice in writing of the exercise of the option
granted hereby, unless otherwise agreed by the Representatives, the Company and
the Selling Shareholders.  If the option is exercised as to all or any portion
of the Option Securities, each of the Underwriters, acting severally and not
jointly, will purchase that proportion of the total number of Option Securities
then being purchased which the number of Initial Securities set forth in
Schedule A opposite the name of such Underwriter bears to the total number of
Initial Securities (except as otherwise provided in the Pricing Agreement),
subject in each case to adjustments as the Representatives in their discretion
shall make to eliminate any sales or purchases of fractional shares.  Each of
the Selling Shareholders will sell shares purchased pursuant to the
over-allotment option in the same proportion as the number of shares of Option
Securities to be sold by such Selling Shareholder bears to the total number of
shares of Option Securities sold by the Selling Shareholders pursuant to this
Agreement.  For purposes of this Agreement, the term "business day"  means a day
on which the American Stock Exchange is open for trading.

                 (c)      Payment of the purchase price for, and delivery of
certificates evidencing, the Initial Securities shall be made at the offices of
Weil, Gotshal & Manges, Dallas, Texas, or at such other place as shall be
agreed upon by the Representatives, the Company and the Selling Shareholders,
at 10:00 a.m., Dallas, Texas time on the third (fourth, if the Initial
Securities are priced after 4:30 p.m. New York time) business day (unless
postponed in accordance with the provisions of Section 10) following the date
the Registration Statement becomes effective (or, if the Company has elected to
rely upon Rule 430A, the third (fourth, if the Initial Securities are priced
after 4:30 p.m.  New York time) business day after execution of the Pricing
Agreement), or such other time not later than ten business days after such date
as shall be agreed upon by the Representatives, the Company and the Selling
Shareholders (such time and date of payment and delivery being herein called
the "Closing Time").

                 In addition, in the event that any or all of the Option
Securities are purchased by the Underwriters, payment of the purchase price
for, and delivery of certificates evidencing, such Option Securities shall be
made at the above-mentioned offices of Weil, Gotshal & Manges, or at such other
place as shall be agreed upon by the Representatives, the Company and the
Selling Shareholders on each Date of Delivery as specified in the notice from
the Representatives to the Company and the Selling Shareholders.  Payments
shall be made to the Selling Shareholders by certified or official bank check
or checks drawn in New York Clearing House funds or similar next day funds
payable to the order of each Selling Shareholder against delivery to the
Representatives of the Securities to be purchased by them.  Certificates for
the Initial Securities and the Option Securities, if any, shall be in such
denominations and registered in such names as the Representatives may request
in writing at least one business day before the Closing Time or the relevant
Date of Delivery, as the case may be.  It is understood that each Underwriter
has authorized the Representatives, for its account, to accept delivery of,
receipt for, and make payment of the purchase price for, the Initial Securities
and





                                      -13-
<PAGE>   14
the Option Securities, if any, which it has agreed to purchase.  The
Representatives, individually and not as representatives of the Underwriters,
may (but shall not be obligated to) make payment of the purchase price for the
Initial Securities or the Option Securities, if any, to be purchased by any
Underwriter whose check has not been received by the Closing Time or the
relevant Date of Delivery, as the case may be, but such payment shall not
relieve such Underwriter from its obligations hereunder.  The certificates for
the Initial Securities and the Option Securities, if any, will be made
available for examination and packaging by the Representatives no later than
3:00 p.m. on the last business day prior to the Closing Time or the relevant
Date of Delivery, as the case may be.

                 SECTION 3. Covenants of the Company.  The Company covenants
with each of the Underwriters as follows.

                 (a)      The Company will notify the Representatives
immediately, and confirm the notice in writing, (i) of the effectiveness of the
Registration Statement and any post-effective amendment thereto, (ii) of the
receipt of any comments thereon from the staff of the Commission, (iii) of any
request by the Commission for any amendment to the Registration Statement or
any amendment or supplement to the Prospectus or for additional information and
(iv) of the issuance by the Commission of any stop order suspending the
effectiveness of the Registration Statement or the initiation of any
proceedings for that purpose.  The Company will use its reasonable efforts to
prevent the issuance of any stop order and, if any stop order is issued, to
obtain the lifting thereof at the earliest practicable  moment.  If the Company
elects to rely on Rule 434 of the 1933 Act Regulations, the Company will
prepare a "term sheet" or an "abbreviated term sheet," as applicable, that
complies with the requirements of Rule 434.  If the Company elects not to rely
on Rule 434, the Company will provide the Underwriters with copies of the form
of Prospectus, in such numbers as the Underwriters may reasonably request, and
file or transmit for filing with the Commission such Prospectus in accordance
with Rule 424(b) of the 1933 Act by the close of business in New York City on
the business day immediately succeeding the date of the Pricing Agreement.  If
the Company elects to rely on Rule 434, the Company will provide the
Underwriters with copies of the form of the Rule 434 Prospectus, in such
numbers as the Underwriters may reasonably request, and file or transmit for
filing with the Commission the form of Prospectus complying with Rule 434(c)(2)
of the 1933 Act in accordance with Rule 424(b) of the 1933 Act, by the close of
business in New York City on the business day immediately succeeding the date
of the Pricing Agreement.

                 (b)      The Company will give the Representatives notice of
its intention to file or prepare any amendment to the Registration Statement
(including any post-effective amendment) or any amendment or supplement to the
Prospectus (including any revised prospectus which the Company proposes for use
by the Underwriters in connection with the offering of the Securities which
differs from the prospectus on file at the Commission at the time Registration
Statement becomes effective, whether or not such revised prospectus is required
to be filed pursuant to Rule 424(b) of the 1933 Act Regulations, and any term
sheet prepared in reliance on Rule 434 of the 1933





                                      -14-
<PAGE>   15
Act Regulations), will furnish the Representatives with copies of any such
amendment or supplement a reasonable amount of time prior to such proposed
filing or use, as the case may be, and will not file any such amendment or
supplement or use any such prospectus to which the Representatives reasonably
shall object.

                 (c)      The Company has delivered or will deliver to the
Representatives as many signed copies of the Registration Statement as
originally filed and of each amendment thereto (including exhibits filed
therewith or incorporated by reference therein) and has delivered or will
deliver to the Representatives as many conformed copies of the Registration
Statement as originally filed and of each amendment thereto (without exhibits)
as the  Representatives reasonably may request for delivery to each of the
Underwriters.

                 (d)      The Company will furnish to each Underwriter, from
 time to time during the period when the Prospectus is required to be delivered
 under the 1933 Act, such number of copies of the Prospectus (as amended or
 supplemented) as such Underwriter may reasonably request for the purposes
 contemplated by the 1933 Act or the 1993 Act Regulations.

                 (e)      During the period of time the Prospectus is required
to be delivered under the 1933 Act or the 1933 Act Regulations, if any event
shall occur as a result of which it is necessary, in the reasonable judgment of
the Representatives, to amend or supplement the Prospectus in order to make the
Prospectus not misleading in the light of the circumstances existing at the
time it is delivered to a purchaser, the Company will forthwith amend or
supplement the Prospectus (in form and substance reasonably satisfactory to the
Underwriters) so that as so amended or supplemented, the Prospectus will not
include an untrue statement of a material fact or omit to state a material fact
necessary in order to make the statements therein, in the light of the
circumstances existing at the time it is delivered to a purchaser, not
misleading, and the Company will furnish to the Underwriters a reasonable
number of copies of such amendment or supplement.

                 (f)      The Company will endeavor, in cooperation with the
Underwriters, to qualify the Securities for offering and sale under the
applicable securities laws of such states and other jurisdictions of the United
States as the Representatives may designate; provided, however, that the
Company shall not be obligated to qualify as a foreign corporation in any
jurisdiction in which it is not so qualified or to execute a general consent to
service of process in any such jurisdiction.  In each jurisdiction in which the
Securities have been so qualified the Company will file such statements and
reports as may be required by the laws of such jurisdiction to continue such
qualification in effect for so long as may be required in connection with the
distribution of the Securities.

                 (g)      The Company will make generally available to its
security holders as soon as practicable, but not later than 90 days after the
close of the period covered thereby, an earnings statement (in form complying
with the provisions of Rule 158 of the 1933 Act Regulations) covering





                                      -15-
<PAGE>   16
a twelve month period beginning not later than the first day of the Company's
fiscal quarter next following the "effective date" (as defined in said Rule
158) of the Registration Statement.

                 (h)      The Company will use the net proceeds received by it
from the sale of the Securities in the manner specified in the Prospectus under
"Use of Proceeds."

                 (i)      If, at the time that the Registration Statement
becomes effective, any information shall have been omitted therefrom in
reliance upon Rule 430A of the 1933 Act Regulations, then immediately following
the execution of the Pricing Agreement, the Company will prepare, and file or
transmit for filing with the Commission in accordance with such Rule 430A and
Rule 424(b) of the 1933 Act Regulations, copies of an amended Prospectus, or,
if required by such Rule 430A, a post-effective amendment to the Registration
Statement (including an amended Prospectus), containing all information so
omitted.

                 (j)      The Company, during the period when the Prospectus is
required to be delivered under the 1933 Act, will file all documents required
to be filed with the Commission pursuant to Section 13, 14, or 15 of the 1934
Act within the time periods required by the 1934 Act and the 1934 Act
Regulations.

                 (k)      The Company will use its reasonable best efforts to
effect the listing of the Securities on the American Stock Exchange.

                 SECTION 4. Certain Covenants of the Company and the Selling
Shareholders.  The Company and each Selling Shareholder covenants with each of
the  Underwriters as follows:

                 (a)      During a period of 180 days from the date of the
Pricing Agreement, neither the Company nor such Selling Shareholder, as the
case may be, will not without Merrill Lynch's  prior written consent, directly
or indirectly, sell, offer to sell, grant any option for the sale of or
otherwise dispose of, any Common Stock or any security convertible into or
exchangeable or exercisable for Common Stock.

                 (b)      The Company and the Selling Shareholders, in such
proportions (aggregating 100%) as they may agree upon among themselves, will
pay all expenses incident to the performance of the obligations of the Company
and the Selling Shareholders under this Agreement, including (i) the
preparation and filing of the Registration Statement as originally filed and of
each amendment thereto, (ii) the printing of this Agreement and the Pricing
Agreement, (iii) the preparation, issuance and delivery of the certificates
evidencing the Securities to the Underwriters, (iv) the fees and disbursements
of the Company's counsel and accountants and of the Selling Shareholders'
counsel, (v) the qualification of the Securities under securities laws in
accordance with the provisions of Section 3(f) hereof, including filing fees
and the fees and the disbursements of counsel for the Underwriters in
connection therewith and in connection with the preparation of the Blue Sky
Survey





                                      -16-
<PAGE>   17
(in the case of such legal fees, up to a maximum of $10,000), (vi) the printing
and delivery to the Underwriters of copies of the Registration Statement as
originally filed and of each amendment thereto, of the preliminary prospectus
dated, subject to completion, June 7, 1995, and of the Prospectus and any
amendments or supplements thereto, including any term sheet or abbreviated term
sheet, as applicable, delivered by the Company pursuant to Rule 434 of the 1933
Act Regulations, (vii) the printing and delivery to the Underwriters of copies
of the Blue Sky Survey, (viii) the filing fees incurred in connection with any
filings required to be made by the Underwriters with the National Association
of Securities Dealers, Inc., (ix) the fees and expenses incurred in connection
with the listing of the Securities on the American Stock Exchange, and (x) the
fees and expenses of the transfer agent and registrar for the Securities.

                 (c)      If this Agreement is terminated by the
Representatives in accordance with the provisions of Section 5, Section 9(a)(i)
or Section 11 hereof, the Company shall reimburse the Underwriters for all of
their out-of- pocket expenses, including the reasonable fees and disbursements
of counsel for the Underwriters.

                 The provisions of subsections (b) and (c) of this Section
shall not affect any agreement which the Company and the Selling Shareholders
may make for the allocation or sharing of such expenses and costs.

                 (d)      Prior to the time at which the distribution of the
Securities is completed, neither the Company nor the Selling Shareholders
shall, directly or indirectly, (i) take any action designed to cause or result
in, or that constitutes or might reasonably be expected to constitute,
stabilization or manipulation of the price of any security of the Company to
facilitate the sale or resale of the Securities or (ii) bid for, purchase or
pay anyone any compensation for soliciting purchases of, the Securities.

                 (e)      Each Selling Shareholder agrees to deliver to the
Representatives prior to or at Closing Time a properly completed and executed
United States Treasury Department Form W-9 (or other applicable form or
statement specified by Treasury Department regulations in lieu thereof).

                 SECTION 5. Conditions to Obligations of the Underwriters.  The
obligations of the several  Underwriters hereunder are subject to the accuracy
of the representations and warranties of the Company and the Selling
Shareholders herein contained at the date hereof and at Closing Time, to the
performance by the Company and Selling Shareholders of their obligations
hereunder required to be performed prior to or at Closing Time, and to the
following further conditions:

                 (a)      The Registration Statement shall have become
effective not later than 5:30 p.m.  on the date hereof, or with the consent of
Merrill Lynch, at a later time and date, not later, however, than 5:30 p.m. on
the first business day following the date hereof, or at such later time and
date as may be approved by a majority in interest of the Underwriters; and at
Closing Time and any





                                      -17-
<PAGE>   18
Date of Delivery, as the case may be, no stop order suspending the
effectiveness of the Registration Statement shall have been issued under the
1933 Act or proceedings therefor initiated or threatened by the Commission.  If
the Company has elected to rely upon Rule 430A of the 1933 Act Regulations, a
Prospectus that sets forth the price of the Securities and any price-related
information previously omitted from the effective Registration Statement
pursuant to such Rule 430A shall have been transmitted to the Commission for
filing pursuant to Rule 424(b) of the 1933 Act Regulations within the
prescribed time period, and prior to Closing Time the Company shall have
provided evidence satisfactory to the Representatives of such timely filing, or
a post-effective amendment providing such information shall have been promptly
filed and declared effective in accordance with the requirements of Rule 430A of
the 1933 Act Regulations.

                 (b)      At Closing Time, the  Representative shall have
received:

                          (1)     The opinion, dated as of Closing Time, of
         Weil, Gotshal & Manges, counsel for the Company and the Selling
         Shareholders, in form and substance reasonably satisfactory to the
         Representatives, to the effect that:

                                  (i)      The Company is validly existing as a
                 corporation in good standing under the laws of the State of
                 Delaware.

                                  (ii)     The Company has all necessary
                 corporate power and authority to own, lease and operate its
                 properties and to conduct its business as described in the
                 Prospectus.

                                  (iii)    As of April 30, 1995, the
                 authorized, issued and outstanding capital stock of the
                 Company is as set forth in the Prospectus under the caption
                 "Capitalization," and the shares of issued and outstanding
                 Common Stock, including the Securities to be purchased by the
                 Underwriters from the Selling Shareholders, have been duly
                 authorized and validly issued and are fully paid and
                 non-assessable.

                                  (iv)     The Company has all necessary
                 corporate power and authority to enter into and perform its
                 obligations under this Agreement, and this Agreement has been
                 duly authorized, executed and delivered by the Company.

                                  (v)      Based solely upon telephonic
                 confirmation from the Staff of the Commission, the
                 Registration Statement is effective under the 1933 Act and, to
                 the knowledge of such counsel, no stop order suspending the
                 effectiveness of the Registration Statement has been issued
                 under the 1933 Act, or proceedings therefor initiated or
                 overtly threatened by the Commission.





                                      -18-
<PAGE>   19
                                  (vi)     At the time the Registration
                 Statement became effective and at the Representation Date, the
                 Registration Statement (other than the consolidated financial
                 statements and supporting schedules and the other financial,
                 statistical and accounting data included or incorporated by
                 reference therein, as to which no opinion need be rendered)
                 complied as to form in all material respects with the
                 requirements of the 1933 Act and the 1933 Act Regulations.  As
                 of its date, any Rule 434 Prospectus complied as to form in
                 all material respects with the requirements of Rule 434.

                                  (vii)    The Common Stock conforms in all
                 material respects to the description thereof contained in or
                 incorporated by reference into the Prospectus.

                                  (viii)   No authorization, approval, consent
                 or order of any court or governmental authority or agency is
                 required in connection with the sale of the Securities to the
                 Underwriters, except such as may be required under the 1993
                 Act, the 1933 Act Regulations or state securities laws.

                                  (ix)     The execution and delivery of this
                 Agreement, the consummation of the transactions contemplated
                 hereby and the compliance by the Company with the provisions
                 hereof will not conflict with, constitute a default under or
                 violate (A) any of the terms, conditions or provisions of the
                 certificate of incorporation or bylaws of the Company, (B) any
                 of the terms, conditions or provisions of any material
                 document, agreement or other instrument to which the Company
                 or any of its Subsidiaries is a party or by which it is bound
                 of which such counsel is aware, (C) any federal, Delaware
                 corporate, Texas or New York law or regulation (other than
                 state securities or blue sky laws, as to which such counsel
                 need express no opinion), or (D) any judgment, writ,
                 injunction, decree, order or ruling of any court or
                 governmental authority binding on the Company or any of its
                 Subsidiaries of which such counsel is aware.

                                  (x)      To the knowledge of such counsel,
                 the Company is not in violation of its charter or bylaws.

                                  (xi)     This Agreement, the  Pricing
                 Agreement, the Power of Attorney and the Custody Agreement
                 have been duly authorized, executed and delivered by each of
                 the Selling Shareholders.

                                  (xii)    When the Securities are delivered to
                 the Underwriters against payment therefor in accordance with
                 the terms of the Purchase Agreement, the Underwriters will
                 acquire good and marketable title to the Securities purchased
                 from the Selling Shareholders, free and clear of any and all
                 liens, pledges,





                                      -19-
<PAGE>   20
                 encumbrances, charges, agreements or claims of any kind
                 whatsoever, assuming the Underwriters acquire such Securities
                 without notice of any adverse claim as such term is used in
                 Section 8-302 of the Uniform Commercial Code as in effect in
                 the State of New York.

                                  (xiii)   The Selling Shareholders have all
                 necessary power and authority to enter into and perform their
                 respective obligations under this Agreement and the Pricing
                 Agreement.

                          (2)     The opinion, dated as of Closing Time, of
         Christopher L. Cella, General Counsel of the Company, in form and
         substance reasonably satisfactory to the Representatives, to the
         effect that:

                                  (i)      The Company has been duly
                 incorporated under the laws of the State of Delaware.

                                  (ii)     To the knowledge of such counsel,
                 the Company is duly qualified as a foreign corporation to
                 transact business and is in good standing in each jurisdiction
                 in which such qualification is required, except where the
                 failure to be so qualified would not have a material adverse
                 effect on the condition, financial or otherwise, or the
                 results of operations or business affairs of the Company and
                 its Subsidiaries considered as one enterprise.

                                  (iii)    Each Subsidiary of the Company that
                 is a corporation has been duly incorporated and is validly
                 existing as a corporation in good standing under the laws of
                 the jurisdiction of its incorporation, has all necessary
                 corporate power and authority to own, lease and operate its
                 properties and to conduct its business as described in the
                 Prospectus and, to the knowledge of such counsel, is duly
                 qualified as a foreign corporation to transact business and is
                 in good standing in each jurisdiction in which such
                 qualification is required, except where the failure to be so
                 qualified would not have a material adverse effect on the
                 condition, financial or otherwise, or the results of
                 operations or business affairs of the Company and its
                 Subsidiaries considered as one enterprise; all of the issued
                 and outstanding capital stock of each Subsidiary that is a
                 corporation has been duly authorized and validly issued, is
                 fully paid and non-assessable and is owned by the Company,
                 directly or through Subsidiaries, free and clear of any
                 security interest, mortgage, pledge, lien, encumbrance, claim
                 or equity.

                                  (iv)     MRC is a general partnership duly
                 formed pursuant to the laws of the State of Montana.  MRC has
                 all necessary partnership power and authority to conduct its
                 business as described in the Prospectus and, to the knowledge
                 of such





                                      -20-
<PAGE>   21
                 counsel, is duly qualified or registered to transact business
                 and is in good standing in each jurisdiction in which such
                 qualification or registration is required, except where the
                 failure to be so qualified would not have a material adverse
                 effect on the condition, financial or otherwise, or the
                 results of operations or business affairs of the Company and
                 its Subsidiaries considered as one enterprise; all of the
                 partnership interests in MRC are owned by the Company,
                 directly or through Subsidiaries, free and clear of any
                 security interest, mortgage, pledge, lien, encumbrance, claim
                 or equity.

                                  (v)      To the knowledge of such counsel,
                 there are no legal or governmental proceedings pending or
                 threatened which are required to be disclosed in the
                 Registration Statement, other than those disclosed therein,
                 and all pending legal or governmental proceedings to which the
                 Company or any Subsidiary is a party or to which any of their
                 property is subject which are not described in the
                 Registration Statement, including ordinary routine litigation
                 incidental to their businesses, are, considered in the
                 aggregate, not material.

                                  (vi)     The information set forth in the
                 Prospectus under the captions "Business -- Regulation,"
                 "Business -- Legal Proceedings"  and "Description of Common
                 Stock," to the extent that they constitute matters of law,
                 summaries of legal matters, documents or proceedings, or legal
                 conclusions, have been reviewed by him and are correct in all
                 material respects.

                                  (vii)    To the knowledge of such counsel,
                 each of the Selling Shareholders has good and marketable title
                 to the Securities to be sold by such Selling Shareholder
                 hereunder, free and clear of any claim, lien, security
                 interest, encumbrance, restriction on transfer or other defect
                 in title, and full power, right and authority to sell such
                 Securities.

                                  (viii)   To the knowledge of such counsel, no
                 default exists in the due performance or observance of any
                 material obligation, agreement, covenant or condition
                 contained in any contract, indenture, mortgage, loan
                 agreement, note, lease or other instrument described, referred
                 to or filed or incorporated by reference in the Registration
                 Statement.

                                  (ix)     Each document filed pursuant to the
                 1934 Act (other than the consolidated financial statements and
                 schedules included therein, as to which no opinion need be
                 rendered), and incorporated or deemed to be incorporated by
                 reference in the Prospectus complied when so filed as to form
                 in all material respects with the 1934 Act and the 1934 Act
                 Regulations.





                                      -21-
<PAGE>   22
                                  (x)      To the knowledge of such counsel,
                 there are no persons with registration or other similar
                 rights, exercisable as a result of the offering or sale of the
                 Securities hereunder, to have any securities registered
                 pursuant to the Registration Statement or otherwise registered
                 by the Company under the 1933 Act; and to the knowledge of
                 such counsel, there are no persons with any other registration
                 or other similar rights to have any securities registered by
                 the Company or any Subsidiary under the 1933 Act.

                                  (xi)     To the knowledge of such counsel,
                 there are no contracts, indentures, mortgages, loan
                 agreements, notes, leases or other instruments required to be
                 described or referred to in the Registration Statement or to
                 be filed as exhibits thereto other than those described or
                 referred to therein or filed or incorporated by reference as
                 exhibits thereto; and the descriptions thereof or references
                 thereto are correct.

                          (3)     The opinion, dated as of Closing Time, of
         Baker & Botts, L.L.P., counsel for the Underwriters, with respect to
         the matters set forth in clauses (i), (iv), (v), (vi), and (vii) of
         subsection (b)(1) of this Section.

                          (4)     In giving their opinions required by
         subsections (b)(1), (b)(2) and (b)(3), respectively, of this Section,
         Weil, Gotshal & Manges, Mr. Cella and Baker & Botts, L.L.P.  shall
         each additionally state that nothing has come to their attention that
         would lead them to believe that the Registration Statement (except for
         the consolidated financial statements and schedules (including the
         notes thereto and the auditors report thereon) and other financial and
         statistical data included or incorporated by reference therein, as to
         which such counsel need not comment), at the time it became effective
         or at the
          Representation Date, contained an untrue statement of a material fact
         or omitted to state a material fact required to be stated therein or
         necessary to make the statements therein not misleading or that the
         Prospectus (except for the consolidated financial statements and
         schedules (including the notes thereto and the auditors report
         thereon) and other financial, accounting and statistical data included
         or incorporated by reference therein, as to which such counsel need
         not comment), at the Representation Date (unless the term "Prospectus"
         refers to a Prospectus which has been provided to the Underwriters by
         the Company for use in connection with the offering of the Securities
         which differs from the prospectus on file at the Commission at the
          Representation Date, in which case at the time it is first provided
         to the Underwriters for such use) or at Closing Time, included or
         includes an untrue statement of a material fact or omitted or omits to
         state a material fact necessary in order to make the statements
         therein, in the light of the circumstances under which they were made,
         not misleading.





                                      -22-
<PAGE>   23
                 (c)      At Closing Time there shall not have been, since the
date hereof or since the respective dates as of which information is given in
the Registration Statement and the Prospectus, any material adverse change in
the condition, financial or otherwise, or in the results of operations,
business affairs or business prospects of the Company and its Subsidiaries
considered as one enterprise, whether or not arising in the ordinary course of
business, and the  Representatives shall have received a certificate of the
President or a Vice President of the Company and of the chief financial or
chief accounting officer of the Company, dated as of Closing Time, to the
effect that (i) there has been no such material adverse change, (ii) the
representations and warranties of the Company contained in Section 1(a) are
true and correct with the same force and effect as though expressly made at and
as of Closing Time, (iii) the Company has complied with all agreements and
satisfied all conditions on its part to be performed or satisfied at or prior
to Closing Time, and (iv) no stop order suspending the effectiveness of the
Registration Statement has been issued and no proceedings for that purpose have
been initiated or, to the Company's knowledge, threatened by the Commission.
As used in this Section 5(c), the term "Prospectus" shall mean the Prospectus
in the form first used to confirm sales of the Securities.

                 (d)      At Closing Time the Representatives shall have
received a certificate of the Attorney-in-Fact for each of the Selling
Shareholders, dated as of Closing Time, to the effect that (i) the
representations and warranties of each Selling Shareholder contained in Section
1(b) are true and correct with the same force and effect as though expressly
made at and as of Closing Time and (ii) each Selling Shareholder has complied
with all agreements and satisfied all conditions on its part to be performed or
satisfied at or prior to Closing Time.

                 (e)      At the time of the execution of this Agreement, the
Representatives shall have received from Ernst & Young LLP a letter dated such
date, in form and substance satisfactory to the Representatives, to the effect
that (i) they are independent public accountants with respect to the Company
and its subsidiaries within the meaning of the 1933 Act and the 1933 Act
Regulations; (ii) it is their opinion that the consolidated financial
statements and supporting schedules included in or incorporated by reference
into the Registration Statement and covered by their opinions therein comply as
to form in all material respects with the applicable accounting requirements of
the 1933 Act and the 1933 Act Regulations; (iii) based upon limited procedures
set forth in detail in such letter, nothing has come to their attention which
causes them to believe that (A) the unaudited consolidated financial statements
and supporting schedules of the Company and its subsidiaries included in or
incorporated by reference into the Registration Statement do not comply as to
form in all material respects with the applicable accounting requirements of
the 1933 Act and the 1933 Act Regulations or are not presented in conformity
with generally accepted accounting principles applied on a basis substantially
consistent with that of the audited consolidated financial statements included
in or incorporated by reference into the Registration Statement, (B) the
unaudited amounts of revenues, net income and net income per common share set
forth under "Selected Financial Data" in the Prospectus were not determined on
a basis substantially consistent with that used in determining the
corresponding amounts in the audited consolidated financial statements included





                                      -23-
<PAGE>   24
in or incorporated by reference into the Registration Statement, or (C) at a
specified date not more than three days prior to the date of this Agreement,
there has been any change in the capital stock of the Company or any increase
in the consolidated long term debt of the Company and its subsidiaries or any
decrease in consolidated net current assets or stockholders' equity of the
Company and its subsidiaries as compared with the amounts shown in the April
30, 1995 balance sheet included in the Registration Statement, or that during
the period from April 30, 1995 to a specified date not more than three days
prior to the date of this Agreement, there were any decreases, as compared with
the corresponding period in the preceding year, in consolidated revenues,
income from operations, net income or net income per common share of the
Company and its subsidiaries, except in all instances for changes, increases or
decreases which the Registration Statement and the Prospectus disclose have
occurred or may occur; and (iv) in addition to the examination referred to in
their opinions and the limited procedures referred to in clause (iii) above,
they have carried out certain specified procedures, not constituting an audit,
with respect to certain amounts, percentages and financial information which are
included in the Registration Statement and Prospectus and which are specified by
the Representatives, and have found such amounts, percentages and financial
information to be in agreement with the relevant accounting, financial and other
records of the Company and its subsidiaries identified in such letter.
                         
                 (f)      At Closing Time the  Representatives shall have
received from Ernst & Young LLP a letter, dated as of Closing Time, to the
effect that they reaffirm the statements made in the letter furnished pursuant
to subsection (e) of this Section, except that the "specified date"  referred
to shall be a date not more than three days prior to Closing Time and, if the
Company has elected to rely on Rule 430A of the 1933 Act Regulations, to the
further effect that they have carried out procedures as specified in clause
(iv) of subsection (e) of this Section with respect to certain amounts,
percentages and financial information specified by the  Representatives and
deemed to be a part of the Registration Statement pursuant to Rule 430(A)(b)
and have found such amounts, percentages and financial information to be in
agreement with the records specified in such clause (iv).

                 (g)      At the time of the execution of this Agreement, the
 Company shall have furnished to the Representatives "lock-up"  letters, in
 form and substance reasonably satisfactory to the  Representatives, signed by
 each of the Selling Shareholders and certain trusts for the benefit of the
 Selling Stockholders, pursuant to which each such person shall agree not to
 sell, offer to sell, grant an option for the sale of, or otherwise dispose of,
 directly or indirectly, any shares of Common Stock or any securities
 convertible into or exchangeable or exercisable for Common Stock for a period
 of 180 days from the Representation Date without the prior written consent of
 the Representatives.

                 (h)      At Closing Time and at each Date of Delivery, if any,
counsel for the Underwriters shall have been furnished with such documents and
opinions as they reasonably may require for the purpose of enabling them to
pass upon the issuance and sale of the Securities as





                                      -24-
<PAGE>   25
herein contemplated and related proceedings, or in order to evidence the
accuracy of any of the representations or warranties, or the fulfillment of any
of the conditions, herein contained; and all actions, proceedings, instruments,
opinions and documents required in connection with the issuance and sale of the
Securities as herein contemplated shall be reasonably satisfactory in form and
substance to the Representatives.

                 (i)      In the event that the Underwriters exercise their
option provided in Section 2(b) hereof to purchase all or any portion of the
Option Securities, and the Date of Delivery specified by the  Underwriters for
any such purchase is a date other than Closing Time, the obligation of the
Underwriters to purchase all or any such portion of the Option Securities shall
be subject, in addition to the foregoing conditions, to the accuracy of the
representations and warranties of the Company and the Selling Shareholders
contained herein and the statements in any certificates furnished by the
Company and the Selling Shareholders hereunder at each Date of Delivery, to the
performance by the Company and the Selling Shareholders of their obligations
hereunder required to be performed prior to or at each Date of Delivery, and to
the receipt by the  Underwriters of the following:

                          (1)     A certificate, dated such Date of Delivery,
         of the President or a Vice President of the Company and of the chief
         financial or chief accounting officer of the Company confirming that
         the certificate delivered at the Closing Time pursuant to Section 5(c)
         hereof remains true and correct as of such Date of Delivery.

                          (2)     A certificate, dated such Date of Delivery,
         of the Attorney-in- Fact for the Selling Shareholders confirming that
         the certificate delivered at Closing Time pursuant to Section 5(d)
         hereof remains true and correct as of such Date of Delivery.

                          (3)     The opinion of Weil, Gotshal & Manges,
         counsel for the Company and the Selling Shareholders, in form and
         substance reasonably satisfactory to the Representatives, dated such
         Date of Delivery, relating to the Option Securities to be purchased on
         such Date of Delivery and otherwise to the same effect as the opinion
         required by Sections 5(b)(1) and 5(b)(4) hereof.

                          (4)     The opinion of Christopher L. Cella, General
         Counsel of the Company, in form and substance reasonably satisfactory
         to the Representatives, dated such Date of Delivery, relating to the
         Option Securities to be purchased on such Date of Delivery and
         otherwise to the same effect as the opinion required by Sections
         5(b)(2) and 5(b)(4) hereof.

                          (5)     The opinion of Baker & Botts, L.L.P., counsel
         for the Underwriters, dated such Date of Delivery, relating to the
         Option Securities to be





                                      -25-
<PAGE>   26
         purchased on such Date of Delivery and otherwise to the same effect as
         the opinion required by Sections 5(b)(3) and 5(b)(4) hereof.

                          (6)     A letter from Ernst & Young LLP, in form and
         substance reasonably satisfactory to the  Representatives, dated such
         Date of Delivery, substantially the same in form and substance as the
         letter furnished to the  Representatives pursuant to Section 5(f)
         hereof, except that the "specified date"  in the letter furnished
         pursuant to this Section 5(i)(6) shall be a date not more than three
         days prior to such Date of Delivery.

                 If any condition specified in this Section shall not have been
fulfilled when and as required to be fulfilled, this Agreement may be
terminated by the  Representatives by notice to the Company and the Selling
Shareholders at any time at or prior to Closing Time or (insofar as the
provisions hereof relate to the Option Securities) any Date of Delivery, and
such termination shall be without liability of any party to any other party.
Notwithstanding the foregoing, the provisions of Sections 4(b), 4(c), 6 and 7
hereof shall remain in effect following any such termination.

                 SECTION 6. Indemnification.

                 (a)      The Company agrees to indemnify and hold harmless
each  Underwriter and each person, if any, who controls any  Underwriter within
the meaning of Section 15 of the 1933 Act as follows:

                          (i)     against any and all loss, liability, claim,
         damage and expense whatsoever, as incurred, arising out of any untrue
         statement or alleged untrue statement of a material fact contained in
         the Registration Statement (or any amendment thereto), including the
         information deemed to be part of the Registration Statement pursuant
         to Rule 430A(b) or Rule 434 of the 1933 Act Regulations, if
         applicable, or the omission or alleged omission therefrom of a
         material fact required to be stated therein or necessary to make the
         statements therein not misleading, or arising out of any untrue
         statement or alleged untrue statement of a material fact contained in
         any preliminary prospectus or the Prospectus (or any amendment or
         supplement thereto) or the omission or alleged omission therefrom of a
         material fact necessary in order to make the statements therein, in
         the light of the circumstances under which they were made, not
         misleading;

                          (ii)    against any and all loss, liability, claim,
         damage and expense whatsoever, as incurred, to the extent of the
         aggregate amount paid in settlement of any litigation, or any
         investigation or proceeding by any governmental agency or body,
         commenced or threatened, or of any claim whatsoever based upon any
         such untrue statement or omission, or any such alleged untrue
         statement or omission, if such settlement is effected with the written
         consent of the Company; and





                                      -26-
<PAGE>   27
                          (iii)   against any and all expense whatsoever, as
         incurred (including, subject to Section 6(d) hereof, the fees and
         disbursements of counsel chosen by Merrill Lynch), reasonably incurred
         in investigating, preparing or defending against any litigation, or
         any investigation or proceeding by any governmental agency or body,
         commenced or threatened, or any claim whatsoever based upon any such
         untrue statement or omission, to the extent that any such expense is
         not paid under (i) or (ii) above;

provided, however, that this indemnity agreement shall not apply to any loss,
liability, claim, damage or expense to the extent arising out of any untrue
statement or omission or alleged untrue statement or omission made in reliance
upon and in conformity with written information furnished to the Company by any
Underwriter through Merrill Lynch expressly for use in the Registration
Statement (or any amendment thereto) or any preliminary prospectus or the
Prospectus (or any amendment or supplement thereto); provided, further, that
the foregoing indemnity agreement with respect to any preliminary prospectus
shall not inure to the benefit of any Underwriter (or controlling person
thereof) if a copy of the Prospectus (as then amended or supplemented if the
Company shall have furnished any such amendments or supplements thereto) was
not sent or given by or on behalf of such Underwriter to a person if required
by law at or prior to the written confirmation of the sale of such Securities
to such person and if the Prospectus (as so amended or supplemented) or any
document incorporated or deemed to be incorporated by reference in such
Prospectus would have corrected the defect giving rise to such loss, liability,
claim, damage or expense.

                 (b)      Each Selling Shareholder agrees, severally and not
jointly, to indemnify and hold harmless each Underwriter and each person, if
any, who controls any  Underwriter within the meaning of Section 15 of the 1933
Act, against any and all loss, liability, claim, damage and expense whatsoever,
as incurred, insofar as and to the extent that such loss, liability, claim,
damage or expense arises out of any untrue statement or omission or alleged
untrue statement or omission made in reliance upon and conformity with written
information furnished to the Company by or on behalf of such Selling Shareholder
expressly for use in the Registration Statement (or any amendment thereto) or
any preliminary prospectus or the  Prospectus (or any amendment or supplement
thereto); provided, however, that each Selling Shareholder's aggregate liability
under this Section shall be limited to an amount equal to the net proceeds
(after deducting the Underwriters' discount but before deducting expenses)
received by such Selling Shareholder from the sale of Securities pursuant to
this Agreement.

                 (c)      Each Underwriter severally agrees to indemnify and
hold harmless the Company, its directors, each of its officers who signs the
Registration Statement and each person, if any, who controls the Company within
the meaning of Section 15 of the 1933 Act, and each Selling Shareholder, and
each person, if any, who controls such Selling Shareholder within the meaning
of Section 15 of the 1933 Act, against any and all loss, liability, claim,
damage and expense described in the indemnity contained in subsection (a) of
this Section, as incurred, but only with respect to untrue statements or
omissions, or alleged untrue statements or omissions, made in the





                                      -27-
<PAGE>   28
Registration Statement (or any amendment thereto) or any preliminary prospectus
or the Prospectus (or any amendment or supplement thereto) in reliance upon and
in conformity with written information furnished to the Company by such
Underwriter through Merrill Lynch expressly for use in the Registration
Statement (or any amendment thereto) or such preliminary prospectus or the
Prospectus (or any amendment or supplement thereto).

                 (d)      Each indemnified party shall give notice as promptly
as reasonably practicable to each indemnifying party of any action commenced
against it in respect of which indemnity may be sought hereunder, but failure
to so notify an indemnifying party shall not relieve such indemnifying party
from any liability which it may have otherwise than on account of this
indemnity agreement.  If it so elects within a reasonable time after receipt of
such notice, an indemnifying party, jointly with any other indemnifying parties
receiving such notice, may assume the defense of such action with counsel
chosen by it and approved (which approval may not be withheld unreasonably) by
the indemnified parties defendant in such action, unless such indemnified party
or parties reasonably determine that there may be legal defenses available to
it or them which are different from or in addition to those available to such
indemnifying party or parties, in which case such indemnifying party or parties
shall not be entitled to assume such defense.  If an indemnifying party assumes
the defense of such action, the indemnifying parties shall not be liable for
any fees and expenses of counsel for the indemnified parties incurred
thereafter in connection with such action, unless the employment of such
counsel shall have been authorized in writing by one of the indemnifying
parties in connection with the defense of such action.  In no event shall the
indemnifying or indemnified parties be liable for fees and expenses of more
than one counsel (in addition to any local counsel) separate from their own
counsel for all indemnified parties in connection with any one action or
separate but similar or related actions in the same jurisdiction arising out of
the same general allegations or circumstances.  No indemnifying or indemnified
party shall, without the prior written consent (which consent may not be
withheld unreasonably) of the other party, effect any settlement of any pending
or threatened action in respect of which indemnity could have been sought
hereunder.

                 SECTION 7. Contribution.  In order to provide for just and
equitable contribution in circumstances in which the indemnity agreement
provided for in Section 6 is for any reason held to be unenforceable by the
indemnified parties although applicable in accordance with its terms, the
Company, the Selling Shareholders and the  Underwriters shall contribute to the
aggregate losses, liabilities, claims, damages and expenses of the nature
contemplated by said indemnity agreement incurred by the Company and the
Selling Shareholders and one or more of the Underwriters, as incurred, in such
proportions that the Underwriters are responsible for that portion represented
by the percentage that the underwriting discount appearing on the cover page of
the Prospectus bears to the initial public offering price appearing thereon and
the Company and the Selling Shareholders, in the proportions that they have
agreed to, are responsible for the balance; provided, however, that no person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the 1933 Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent





                                      -28-
<PAGE>   29
misrepresentation.  For purposes of this Section, each person, if any, who
controls an Underwriter within the meaning of Section 15 of the 1933 Act shall
have the same rights to contribution as such Underwriter, and each director of
the Company, each officer of the Company who signed the Registration Statement,
and each person, if any, who controls the Company and each person, if any, who
controls a Selling Shareholder within the meaning of Section 15 of the 1933 Act
shall have the same rights to contribution as the Company or the Selling
Shareholders, the case may be.

                 SECTION 8. Representations, Warranties and Agreements to
Survive Delivery.  All representations, warranties and agreements contained in
this Agreement and the  Pricing Agreement, or contained in certificates of
officers of the Company or the Selling Shareholders submitted pursuant hereto,
shall remain operative and in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter or controlling person, or
by or on behalf of the Company or the Selling Shareholders, and shall survive
delivery of the  Securities to the  Underwriters.

                 SECTION 9. Termination of Agreement.

                 (a)      The  Representatives may terminate this Agreement, by
notice to the Company and the Selling Shareholders, at any time at or prior to
Closing Time (i) if there has been, since the date of this Agreement or since
the respective dates as of which information is given in the Prospectus, any
material adverse change in the condition, financial or otherwise, or in the
results of operations, business affairs or business prospects of the Company
and its Subsidiaries considered as one enterprise, whether or not arising in
the ordinary course of business, or (ii) if there has occurred any outbreak of
hostilities or escalation thereof or other calamity or crisis, the effect of
which on the financial markets of the United States is such as to make it, in
the reasonable judgment of the Representatives, impracticable to market the
Securities or to enforce contracts for the sale of the Securities, or (iii) if
trading in the Common Stock has been suspended by the Commission, or if trading
generally on either the American Stock Exchange or the New York Stock Exchange
has been suspended, or minimum or maximum prices for trading have been fixed,
or maximum ranges for prices for securities have been required, by either of
said exchanges or by order of the Commission or any other governmental
authority, or if a banking moratorium has been declared by either Federal, New
York or Texas authorities.  As used in this Section 9(a), the term "Prospectus"
means the Prospectus in the form first used to confirm sales of the Securities.

                 (b)      If this Agreement is terminated pursuant to this
Section, such termination shall be without liability of any party to any other
party.  Notwithstanding the foregoing, the provisions of Sections 4(b), 4(c), 6
and 7 shall remain in effect.

                 SECTION 10. Default by One or More of the Underwriters.  If
one or more of the  Underwriters shall fail at Closing Time to purchase and pay
for any of the Initial  Securities which it or they are obligated to purchase
under this Agreement and the  Pricing Agreement (the "Defaulted Securities"),
the Representatives shall have the right, within 24 hours thereafter, to make





                                      -29-
<PAGE>   30
arrangements for one or more of the non-defaulting Underwriters, or any other
underwriters, to purchase all, but not less than all, of the Defaulted
Securities in such amounts as may be agreed upon and upon the terms herein set
forth; if, however, the  Representatives shall not have completed such
arrangements within such 24-hour period, then:

                 (a)      if the number of Defaulted Securities does not equal
or exceed 10% of the number of Initial Securities, the non-defaulting
Underwriters shall be obligated to purchase the full amount thereof in the
proportions that their respective underwriting obligations hereunder bear to
the underwriting obligations of all non-defaulting
 Underwriters, or

                 (b)      if the number of Defaulted Securities equals or
 exceeds 10% of the number of Initial Securities, this Agreement shall
 terminate without liability on the part of any non-defaulting  Underwriters.

                 No action taken pursuant to this Section shall relieve any
defaulting  Underwriter from liability in respect of its default.

                 In the event of any such default which does not result in a
 termination of this Agreement, either the Representatives, the Company or the
 Selling Shareholders shall have the right to postpone Closing Time for a
 period not
exceeding seven days in order to effect any required changes in the
Registration Statement or Prospectus or in any other documents or arrangements.

                 SECTION 11. Default by One or More of the Selling Shareholders
or the Company.  If one or more of the Selling Shareholders shall fail at
Closing Time to sell and deliver the number of Initial  Securities which such
Selling Shareholder or Selling Shareholders are obligated to sell hereunder,
then the  Underwriters may, at their option, by notice from the
Representatives to the Company and the non-defaulting Selling Shareholders,
either (a) terminate this Agreement without any liability on the part of any
non-defaulting party or (b) elect to purchase the Initial  Securities which the
non-defaulting Selling Shareholders have agreed to sell hereunder.

                 In the event of a default by any Selling Shareholder as
 referred to in this Section, each of the Representatives, the Company and the
 non-defaulting Selling Shareholders shall have the right to postpone Closing
 Time for a period not exceeding seven days in order to effect any required
 changes in the Registration Statement or Prospectus or in any other documents
 or arrangements.

                 If the Company shall fail at Closing Time to sell and deliver
the number of  Securities which it is obligated to sell hereunder, then this
Agreement shall terminate without any liability on the part of any
non-defaulting party.

                 No action taken pursuant to this Section shall relieve the
Company or any Selling Shareholder or Selling Shareholders so defaulting from
liability, if any, in respect of such default.





                                      -30-
<PAGE>   31
                 SECTION 12. Notices.  All notices and other communications
hereunder shall be in writing and shall be deemed to have been duly given if
mailed or transmitted by any standard form of telecommunication.  Notices to
the Underwriters shall be directed to the  Representatives in care of Merrill
Lynch at World Financial Center, North Tower, 250 Vesey Street, New York, New
York, 10281, to the attention of Mr. Wood Steinberg; notices to the Company
shall be directed to it at 100 Crescent Court, Suite 1600, Dallas, Texas 75201,
to the attention of Mr.  Christopher L.  Cella; and notices to the Selling
Shareholders shall be directed to them in care of the Attorney-in-Fact at 100
Crescent Court, Suite 1600, Dallas, Texas 75201, to the attention of Mr. Lamar
Norsworthy.

                 SECTION 13. Parties.  This Agreement and the  Pricing
Agreement shall each inure to the benefit of and be binding upon the
Underwriters, the Company and the Selling Shareholders and their respective
successors, heirs and legal representatives.  Nothing expressed or mentioned in
this Agreement or the Pricing Agreement is intended or shall be construed to
give any person, firm or corporation, other than the Underwriters, the Company
and the Selling Shareholders and their respective successors, heirs and legal
representatives, and the controlling persons and officers and directors
referred to in Sections 6 and 7 and their heirs and legal representatives, any
legal or equitable right, remedy or claim under or in respect of this Agreement
or the Pricing Agreement or any provision herein or therein contained.  This
Agreement and the Pricing Agreement and all conditions and provisions hereof
and thereof are intended to be for the sole and exclusive benefit of the
Underwriters, the Company and the Selling Shareholders and their respective
successors, heirs and legal representatives and said controlling persons and
officers and directors and their heirs and legal representatives, and for the
benefit of no other person, firm or corporation.  No purchaser of Securities
from any Underwriter shall be deemed to be a successor by reason merely of such
purchase.

                 SECTION 14. Governing Law and Time.  This Agreement and the
Pricing Agreement shall be governed by and construed in accordance with the
laws of the State of New York applicable to agreements made and to be performed
in said State.  Except as otherwise provided herein, specified times of day
refer to New York City time.





                                      -31-
<PAGE>   32
                 If the foregoing is in accordance with your understanding of
our agreement, please sign and return to the Company a counterpart hereof,
whereupon this instrument, along with all counterparts, will become a binding
agreement among the Underwriters, the Company and the Selling Shareholders in
accordance with its terms.

                                   Very truly yours,
                                   
                                   HOLLY CORPORATION
                                   
                                   
                                   
                                   By:_________________________________________
                                      Name:____________________________________
                                      Title:___________________________________
                                   
                                   SELLING SHAREHOLDERS:
                                   
                                   ____________________________________________
                                   
                                   ____________________________________________
                                   
                                   ____________________________________________
                                   
                                   ____________________________________________
                                   
                                   By:_________________________________________
                                      as Attorney-in-Fact, acting on behalf of
                                      each of the Selling Shareholders named in
                                      Schedule B hereto.
                                   




                                      -32-
<PAGE>   33
CONFIRMED AND ACCEPTED
as of the date first above written:

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
     Incorporated
CS FIRST BOSTON CORPORATION

By:   Merrill Lynch, Pierce, Fenner & Smith
      Incorporated

      By:__________________________________
         Name:_____________________________
         Title:____________________________


For themselves and as  Representatives of
the several other Underwriters named in
Schedule A hereto.





                                      -33-
<PAGE>   34
                                   SCHEDULE A


<TABLE>
<CAPTION>
                                                                                         Number of
         Name of Underwriter                                                         Initial Securities
         -------------------                                                         ------------------
<S>                                                                                       <C>
Merrill Lynch, Pierce, Fenner & Smith
                 Incorporated . . . . . . . . . . . . . .
CS First Boston Corporation . . . . . . . . . . . . . . .




                                                                                                                          
                                                                                          ---------


                 Total  . . . . . . . . . . . . . . . . .                                 1,000,000
                                                                                          =========
</TABLE>





                                      -34-
<PAGE>   35
                                   SCHEDULE B



<TABLE>
<CAPTION>
                                                                Number of               Number of
 Selling Shareholders                                       Initial Securities      Option Securities
 --------------------                                       ------------------      -----------------
 <S>                                                              <C>                         <C>
 David Norsworthy  . . . . . . . . . . . . . . . . . .               98,000                    14,700

 Lamar Norsworthy  . . . . . . . . . . . . . . . . . .              102,146                    29,400

 Brown Brothers Harriman Trust Company of
          Texas, Trustee of the Clarence Lamar
          Norsworthy, III Trust under Will of Clarence
          L. Norsworthy, Jr. . . . . . . . . . . . . .               93,854                         0

 Nona Norsworthy Barrett . . . . . . . . . . . . . . .              102,146                    29,400

 Brown Brothers Harriman Trust Company of
          Texas, Trustee of the Nona Lucy Norsworthy
          Trust under Will of Clarence L. Norsworthy,
          Jr.  . . . . . . . . . . . . . . . . . . . .               93,854                         0

 Betty Simmons Poehler-Gohlke Trust  . . . . . . . . .               63,026                         0

 Betty Simmons Fagan Trust . . . . . . . . . . . . . .               77,238                         0

 Betty Simmons East Texas Trust  . . . . . . . . . . .               29,736                    25,500

 Margaret Simmons Poehler-Gohlke Trust . . . . . . . .               63,026                         0

 Margaret Simmons Fagan Trust  . . . . . . . . . . . .               77,238                         0

 Margaret Simmons East Texas Trust . . . . . . . . . .               29,736                    25,500

 Suzanne Simmons Poehler-Gohlke Trust  . . . . . . . .               63,026                         0

 Suzanne Simmons Fagan Trust . . . . . . . . . . . . .               77,238                         0

 Suzanne Simmons East Texas Trust  . . . . . . . . . .               29,736                    25,500
                                                                  ---------                   -------
                                                                  1,000,000                   150,000
                                                                  =========                   =======
</TABLE>





                                      -35-
<PAGE>   36

                                   SCHEDULE C

<TABLE>
<CAPTION>
                                                            State of Incorporation
         Name                                                   or Organization     
         ----                                               ------------------------
<S>                                                                 <C>
Navajo Corp.                                                        Delaware
Navajo Holdings, Inc.                                               New Mexico
Holly Petroleum, Inc.                                               Delaware
Black Eagle, Inc.                                                   Delaware
Navajo Crude Oil Marketing Company                                  Texas
Navajo Crude Oil Purchasing Inc.                                    New Mexico
Navajo Refining Company                                             Delaware
Navajo Northern, Inc.                                               Nevada
Lorefco, Inc.                                                       Delaware
Navajo Western Asphalt Company                                      New Mexico
Navajo Pipeline Co.                                                 Delaware
Lea Refining Company                                                Delaware
Montana Refining Company, a partnership                             Montana
</TABLE>





                                      -36-
<PAGE>   37
                                                                       EXHIBIT A

                                1,000,000 Shares

                               HOLLY CORPORATION

                            (a Delaware corporation)

                                  Common Stock

                           (Par Value $.01 Per Share)

                                PRICING AGREEMENT


MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith Incorporated
CS FIRST BOSTON CORPORATION
 as  Representatives of the several Underwriters named
 in the within-mentioned Purchase Agreement
 c/o MERRILL LYNCH & CO.
         Merrill Lynch, Pierce, Fenner &
          Smith Incorporated
         North Tower
         World Financial Center
         250 Vesey Street
         New York, New York 10281

Dear Sirs:

                 Reference is made to the Purchase Agreement, dated
_________________, 1995 (the "Purchase Agreement"), with respect to the sale by
the Selling Shareholders and the purchase by the several Underwriters named in
Schedule A thereto, acting severally and not jointly, of an aggregate of
1,000,000 shares (the "Initial Securities") of Common Stock, par value $.01 per
share ("Common Stock"), of Holly Corporation (the "Company"), and the grant by
the Selling Shareholders to the Underwriters, acting severally and not jointly,
of the option to purchase all or any part of the Underwriters' pro rata portion
of up to an aggregate of 150,000 additional shares of Common Stock, to cover
over-allotments.  Capitalized terms used herein and not otherwise defined shall
have the respective meanings assigned to them in the Purchase Agreement.





                                      A-1
<PAGE>   38
                 Pursuant to Section 2(a) of the Purchase Agreement, the
Company and the Selling Shareholders named in Schedule B to the Purchase
Agreement agree with each Underwriter as follows:

         (a)     The initial public offering price per share for the Securities
shall be $__________.

         (b)     The purchase price per share for the Securities to be paid by
the several  Underwriters shall be $__________, being an amount equal to the
initial public offering price set forth above less $__________ per share;
provided that the purchase price per share for any Option Securities purchased
upon exercise of the over-allotment option described in Section 2(b) of the
Purchase Agreement shall be reduced by an amount per share equal to any
dividends declared by the Company and payable on the Initial Securities but
not payable on the Option Securities.





                                      A-2
<PAGE>   39
                 If the foregoing is in accordance with your understanding of
our agreement, please sign and return to the Company a counterpart hereof,
whereupon this instrument, along with all counterparts, will become a binding
agreement among the Underwriters, the Company and the Selling Shareholders in
accordance with its terms.

                                    Very truly yours,
                                    
                                    HOLLY CORPORATION
                                    
                                    
                                    
                                    By:________________________________________
                                    
                                    Name:______________________________________
                                    
                                    Title:_____________________________________
                                    
                                    
                                    SELLING SHAREHOLDERS:
                                    
                                    ___________________________________________
                                    
                                    ___________________________________________
                                    
                                    ___________________________________________
                                    
                                    ___________________________________________
                                    
                                    By:________________________________________
                                       as Attorney-in-Fact, acting
                                       on behalf of each of the
                                       Selling Shareholders.





                                      A-3
<PAGE>   40
CONFIRMED AND ACCEPTED
as of the date first above written:

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
 Incorporated
CS FIRST BOSTON CORPORATION

By:   Merrill Lynch, Pierce, Fenner & Smith
      Incorporated

By:________________________________________
Name:______________________________________
Title:_____________________________________


For themselves and as  Representatives
of the several other Underwriters.





                                      A-4

<PAGE>   1
 
                                                                    EXHIBIT 23.2
 
               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
     We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-3) and the related Prospectus of Holly
Corporation for the registration of 2,875,000 shares of its common stock and to
the inclusion therein of our report dated September 20, 1994, with respect to
the consolidated financial statements of Holly Corporation included in its
Annual Report (Form 10-K) for the year ended July 31, 1994, filed with the
Securities and Exchange Commission.
 
                                            ERNST & YOUNG LLP
 
Dallas, Texas
   
June 27, 1995
    


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