VALERO NATURAL GAS PARTNERS L P
PRE13E3/A, 1994-01-11
CRUDE PETROLEUM & NATURAL GAS
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<PAGE>   1

                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549
                        Rule 13e-3 Transaction Statement
       (Pursuant to Section 13(e) of the Securities Exchange Act of 1934)
                               [Amendment No. 1]


                       Valero Natural Gas Partners, L.P.
                                (Name of Issuer)

        Valero Natural Gas Partners, L.P. and Valero Natural Gas Company
                      (Name of Person(s) Filing Statement)

                   Common Units of Limited Partner Interests
                         (Title of Class of Securities)

                                  918906 20 7
                     (CUSIP Number of Class of Securities)

                             Rand C. Schmidt, Esq.
                              Corporate Secretary
                             530 McCullough Avenue
                           San Antonio, Texas  78215
                                 (210) 246-2000
 (Name, Address and Telephone Number of Person Authorized to Receive Notices and
            Communications on Behalf of Person(s) Filing Statement)

    This statement is filed in connection with (check the appropriate box):

         a.      /X/      The filing of solicitation materials or an
information statement subject to Regulation 14A, Regulation 14C or Rule
13e-3(c) under the Securities Exchange Act of 1934.

         b.      / /      The filing of a registration statement under the
Securities Act of 1933.

         c.      / /      A tender offer.

         d.      / /      None of the above.

Check the following box if the soliciting materials or information statement
referred to in checking box (a) are preliminary copies: /X/
<PAGE>   2
                           Calculation of Filing Fee


Not applicable.  The filing fee was paid with the filing of the original
Schedule 13E-3 on December 30, 1993.





                                       ii
<PAGE>   3
                                  INTRODUCTION

         This Schedule 13E-3 relates to the solicitation of proxies of the
holders of the common units of limited partner interests ("Common Units") in
Valero Natural Gas Partners, L.P. ("VNGP") by VNGP and Valero Natural Gas
Company, the general partner of VNGP and a wholly owned subsidiary of Valero
Energy Corporation ("VEC"), in connection with a proposed merger of VNGP with a
limited partnership that is wholly owned by subsidiaries of VEC.  The Schedule
13E-3 was filed on December 30, 1993.  This Amendment No. 1 to Schedule 13E-3
is filed to amend Item 17 of the Schedule 13E-3.





                                      iii
<PAGE>   4

                                 SCHEDULE 13E-3


<TABLE>
<S>         <C>
Item 17.    Material to Be Filed as Exhibits.
            ---------------------------------

(a)         Not applicable.

(b-1)+      Opinion of Financial Advisor to the Special Committee dated as of
            December 20, 1993, appears as Annex B to the Proxy Statement and is
            incorporated herein by reference.

(b-2)*      Report of Financial Advisor to the Special Committee dated as of
            December 10, 1993.

(b-3)*      Report of the Financial Advisor to Valero Energy Corporation dated
            October 1993.

(c)+        Agreement of Merger dated December 20, 1993, among Valero Natural
            Gas Partners, L.P., Valero Merger Partnership, L.P., Valero Natural
            Gas Company and Valero Energy Corporation appears as Annex A to the
            Proxy Statement and is incorporated herein by reference.

(d)+        Exhibit 17(d) hereto--Letter to Unitholders, Notice of Special
            Meeting, form of Proxy and preliminary Proxy Statement.

(e)         Not applicable.

(f)         Not applicable.

</TABLE>       
- ------------------
+Previously filed.
*Filed herewith.





                                       1
<PAGE>   5
                                   SIGNATURE


         After due inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

<TABLE>
<S>                                          <C>
                                             VALERO NATURAL GAS COMPANY
Date: January 11, 1994


                                             By:  /s/ Don M. Heep
                                                -----------------------------------
                                             Name:    Don M. Heep
                                                 ----------------------------------
                                             Title:   Vice President Finance
                                                  ---------------------------------

                                             VALERO NATURAL GAS PARTNERS, L.P.
Date: January 11 , 1994
                                             By:  VALERO NATURAL GAS COMPANY,
                                                     GENERAL PARTNER


                                             By:  /s/ Don M. Heep 
                                               ------------------------------------
                                             Name:    Don M. Heep
                                                 ----------------------------------
                                             Title:   Vice President Finance
                                                  ---------------------------------

</TABLE>





                                       2

<PAGE>   1
                                                                   Exhibit (b-2)

CONFIDENTIAL
- --------------------------------------------------------------------------------


                                                      VALERO NATURAL GAS COMPANY

                                     SPECIAL COMMITTEE OF THE BOARD OF DIRECTORS





                                                               December 10, 1993


- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.

<PAGE>   2
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                               Table of Contents
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                             Tab
                                                                             ---
<S>                                                                          <C>
        Executive Summary                                                     A
        Dillon Read Valuation Effort                                          B
        Valuation Methodology                                                 C
        Valuation Overview                                                    D
        -    Pre-Tax Discounted Cash Flow Analysis
        -    Comparable Company Trading Analysis
        -    Analysis of Comparable Company Acquisitions
        -    Analysis of Historical Premiums of Non-Control Position Buyouts

Appendices
        Pre-Tax Discounted Cash Flow Analysis                                 1
        Comparable Company Trading Analysis                                   2
        Selected Comparable Company Acquisitions                              3
        Historical Premiums of Non-Control Position Buyouts                   4
        Weighted Average Cost of Capital Analysis                             5
        G&A and O&M Savings Analysis                                          6
        Comparison of Current and Historical VLP Projections                  7
        VLP Operating Statistics                                              8
        Stock Price Performance of Peer Group                                 9
        Historical Product Price Performance                                  10
        Summary Financial Impact on VLO                                       11
</TABLE>
- --------------------------------------------------------------------------------
Valero Natural Gas Company


<PAGE>   3
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------



                               EXECUTIVE SUMMARY


- --------------------------------------------------------------------------------
Valero Natural Gas Company
<PAGE>   4
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                               Executive Summary
- --------------------------------------------------------------------------------


     -    The following presentation reviews the factual information as 
          presented to the Special Committee on December 3, 1993 and is 
          followed by Dillon Read's valuation analysis.

     -    On October 14, 1993, Valero Energy Corporation ("VLO") announced
          its intent to acquire Valero Natural Gas Partners, LP ("VLP") by 
          merger for $11.00 per unit.  This proposed offer represented a 
          premium of approximately 24% over the undisturbed market closing
          price one-month prior to the announcement date of $8.875.

     -    On October 14, 1993, VLP units closed at $11.00 per unit.

     -    On October 16, 1993, VLO obtained board approval for the transaction 
          and presented its proposal to the Board of Valero Natural Gas Company
          on October 17.

     -    On November 9, 1993, Dillon Read met with and was subsequently hired 
          by the Special Committee representing the public unit holders of VLP.

     -    Following this appointment, Dillon Read began an extensive review 
          and analysis of VLP.

- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   A.1
<PAGE>   5
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                               Executive Summary
- --------------------------------------------------------------------------------

     -    On December 2, 1993, Dillon Read had a preliminary meeting with its 
          own fairness committee to review its progress and methodologies to
          date, which was followed on December 3, 1993 with its presentation to
          the Special Committee of VLP.
          
     -    On December 9, 1993, Dillon Read met again with its fairness 
          committee.

     -    This presentation is intended to discuss Dillon Read's efforts to 
          date in evaluating VLP, including its methodologies, and the 
          valuation discussion is intended to prepare the Special Committee for
          its meeting with VLO on December 11, 1993.
                               

- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   A.2
<PAGE>   6
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                               Executive Summary
- --------------------------------------------------------------------------------


     -    Fundamental assumptions implicit in our valuation of VLP include the 
          following:
        
          -    The VLP plan dated November 10, 1993 is the basis for our
               analysis.

          -    As represented by VLO, incremental compression expenditures
               above the VLP plan are not feasible (i.e., system capacity is
               at maximum throughput).

     -    Potential litigation liabilities are excluded from the analyses as 
          presented herein.

- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   A.3

<PAGE>   7
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------


                           DILLON READ VALUATION EFFORT


- --------------------------------------------------------------------------------
Valero Natural Gas Company
<PAGE>   8


Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                          Dillon Read Valuation Effort
- --------------------------------------------------------------------------------

    -    The following Dillon Read personnel are involved in the VLP evaluation:

         Name                                Position
         ----                                --------
         James W. Hunt                       Managing Director

         Mark J. Salisbury                   Senior Vice President

         Jason D. Sweet                      Senior Vice President

         Jeffrey W. Miller                   Associate

         Jeffrey J. Singer                   Financial Analyst

    -    Wachtell, Lipton and Vinson & Elkins are conducting the legal review

    -    The Dillon Read and Wachtell, Lipton teams have interviewed the 
         following VLO and VLP representatives:

         Management
         ----------

         Name                                Position
         ----                                --------
         William E. Greehey                  Chairman of the Board and 
                                             Chief Executive Officer

         Edward C. Benninger, Jr.            President:  Valero Natural Gas and
                                             Natural Gas Liquids Companies

         Stan L. McLelland                   Executive Vice President and 
                                             General Counsel

         Don M. Heep                         Vice President - Finance

         Rand C. Schmidt                     Corporate Secretary

         William H. Zesch                    Assistant Controller


- ------------------------------------------------------------------------------- 
Valero Natural Gas Company                                                  B.1
                   
                   
<PAGE>   9
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                   Dillon Read Valuation Effort  (Continued)
- --------------------------------------------------------------------------------

    -    Interview list (continued):
         Valero Natural Gas Company
         --------------------------
         Name                             Position
         ----                             --------
         Terrence E. Ciliske              Senior Vice President
                                          Natural Gas Supply, Marketing and 
                                          Transportation

         Peter A. Fasullo                 Senior Vice President Planning and 
                                          Development

         Mark Stavinoha                   Controller - Natural Gas/Natural Gas 
                                          Liquids Division

    -    Dillon Read's efforts focused on industry conditions, VLP's 
         competitive position, and a thorough understanding of the VLP plan and
         business opportunities

         -   Identify operational constraints

         -   Identify implicit assumptions within the VLP plan

    -    The following documents and material were reviewed

         -   Review of publicly available information on VLP including proxies,
             annual reports, forms 10K and 10Q and other SEC filings, news
             stories and trading data

         -   Review of internally generated VLP operational and financial
             plans

         -   Review of outstanding litigation, including take or pay exposure
                                                                      
- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   B.2
<PAGE>   10


Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                      Dillon Read Valuation Effort  (Continued)
- --------------------------------------------------------------------------------

    -    On December 7, 1993 the Dillon Read team and Wachtell, Lipton held a 
         conference call with Salomon Brothers to discuss its own assumptions 
         implicit in its analysis 

    -    The Salomon Brothers team consisted of the following:

         Name                               Position
         ----                               -------- 

         David J. Prend                     Director

         C. Scott Baxter                    Vice President

         Laurie Cowen                       Vice President

         Roy W. Jageman                     Associate

         D. Richard Dowdle                  Analyst

    -    The most sign-perceived differences between Dillon Read's and Salomon 
         Brothers' analyses include the following:

         -    Calculation of net debt

         -    Discounted cash flow analysis methodology

              -    Terminal multiples

              -    Cash flow perpetuity analysis

         -    Adjustments to reported twelve month VLP data

         -    Selection of most relevant comparables
- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   B.3
<PAGE>   11
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------


                           VALUATION METHODOLOGY


- --------------------------------------------------------------------------------
Valero Natural Gas Company
<PAGE>   12
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                             Valuation Methodology
- --------------------------------------------------------------------------------

    -    Comparison of VLP to selected publicly-traded Gas Gathering, 
         Transportation and Marketing ("GTM") Companies.  The industry group 
         includes:

         -    American Oil & Gas Corporation

         -    Aquila Gas Pipeline Corporation 

         -    Associated Natural Gas Corporation

         -    Tejas Gas Corporation 

         -    Tejas Power Corporation 

         -    Trident NGL Holdings, Inc.

         -    USX - Delhi Group included by Salomon

         -    Western Gas Resources, Inc.

    -    This industry group was narrowed to the following more comparable 
         group: 

         -    Aquila Gas Pipeline Corporation included by Salomon

         -    Associated Natural Gas Corporation excluded by Salomon

         -    Trident NGL Holdings, Inc. included by Salomon 
  
         -    Western Gas Resources, Inc. excluded by Salomon


    -    Pre-tax discounted cash flow analysis of VLP 

    -    An analysis of market premiums paid for non-control stockholder 
         positions 

    -    Review of acquisitions within the sector

- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   C.1

<PAGE>   13
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------


                                VALUATION OVERVIEW


- --------------------------------------------------------------------------------
Valero Natural Gas Company
<PAGE>   14
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                              Valuation Overview
- --------------------------------------------------------------------------------
                         Pre-Tax Discounted Cash Flow

Base Case
- ---------
<TABLE>
<CAPTION>
                                            Discount Rate
        Assumed Terminal       -------------------------------------
        EDITDA Multiple        10.0%   10.5%   11.0%   11.5%   12.0%
        ----------------       -----   -----   -----   -----   -----
            <S>                <C>     <C>     <C>     <C>     <C>
            7.5x               $11.47  $10.56  $ 9.68  $ 8.82  $ 7.98
            8.0x                13.14   12.19   11.27   10.37    9.49
            8.5x                14.81   13.82   12.86   11.92   11.01
            9.0x                16.48   15.45   14.45   13.47   12.52
</TABLE>
Annual O&M and G&A Savings $5mm and Downward NGL Price Adjustments
- ------------------------------------------------------------------
<TABLE>
<CAPTION>
                                            Discount Rate
        Assumed Terminal       -------------------------------------
        EBITDA Multiple        10.0%   10.5%   11.0%   11.5%   12.0%
        ----------------       -----   -----   -----   -----   -----
            <S>                <C>     <C>     <C>     <C>     <C>
            7.5x               $11.59  $10.65  $ 9.74  $ 8.86  $ 8.00
            8.0x                13.33   12.36   11.41   10.48    9.58
            8.5x                15.08   14.06   13.07   12.10   11.16
            9.0x                16.83   15.77   14.73   13.73   12.75
</TABLE>
- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   D.1

<PAGE>   15
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                       Valuation Overview
- --------------------------------------------------------------------------------

Annual O&M and G&A Savings $10mm and Base Case NGL Price Forecast
- -----------------------------------------------------------------
<TABLE>
<CAPTION>
                                          Discount Rate
                                -------------------------------------
        Assumed Terminal        10.0%   10.5%   11.0%   11.5%   12.0%
        EBITDA Multiple         -----   -----   -----   -----   -----
        ---------------        
             <S>               <C>     <C>     <C>     <C>     <C>
             7.5x              $16.34  $15.34  $14.37  $13.42  $12.50
             8.0x               18.16   17.12   16.11   15.12   14.16
             8.5x               19.99   18.90   17.84   16.81   15.81
             9.0x               21.81   20.68   19.58   18.51   17.46

</TABLE>
- --------------------------------------------------------------------------------
Valero Natural Gas Company                                                   D.2
<PAGE>   16
Dillon, Read & Co. Inc.                                       December 10, 1993
- -------------------------------------------------------------------------------
                             Valuation Overview                             
- -------------------------------------------------------------------------------

Annualized Adjustments to Reported LTM 9/30/93 Financials    
- ---------------------------------------------------------          
<TABLE>
<CAPTION>
                                                 ($MM)
<S>                                              <C>      <C>   
     -   Favorable prior year adjustments        $8.5    (non-cash adjustment)

     -   System gain and sales margin             7.5    (cash adjustment)  

     -    Unrecoverable affiliate gathering &     
           transportation costs                    4.4    (cash adjustment)     
                                                 -----          
                                                 $20.4        
                                                 =====    
</TABLE>

<TABLE>
<CAPTION>
                                      EBITDA      CFFO(a)      Net Income(a)
                                      ------      -------      -------------
     <S>                              <C>           <C>             <C>     
     As Reported (LTM 9/30/93)        $115.9        $46.1           $12.2   
                                        (7.5)        (7.5)           (7.5)    
                                        (4.4)        (4.4)           (4.4)    
                                        ---           ---            (8.5)    
                                        ---           7.1 (b)         7.1 (b) 
                                      ------        -----           ----- 
     Adjusted (LTM 9/30/93)           $104.0        $41.4           ($1.1) 
                                      ======        =====           =====      
</TABLE>
- -------------
(a)     Assumes a 35% tax rate and deferred tax component is zero.
(b)     Tax shield of 35% associated with downward adjustments.
- -------------------------------------------------------------------------------
Valero Natural Gas Company                                                  D.3

<PAGE>   17
Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------
                             Valuation Overview
- --------------------------------------------------------------------------------

                             Trading Company Analysis
                                 Peer Group (a)
                               (Tax Rate = 35%)
<TABLE>
<CAPTION>
                                              Indicated Value per Unit
                                       ---------------------------------------------
Multiple Parameter                         Actual                      Adjusted
- ------------------                     -----------------           -----------------
                                       Mean       Median           Mean       Median
                                       ----       ------           ----       ------
<S>                                   <C>         <C>             <C>         <C>
Net Income to Common  (b)
      LTM  (9/30/93)                  $10.04      $10.30            NM          NM
      1993  (c)                        12.98       12.98          $12.98      $12.98
      1994  (c)                        12.45       12.45           12.45       12.45

Cash Flow From Operations  (b)
      LTM  (9/30/93)                  $16.15      $16.52          $14.48      $14.82
      1994E                            13.38       13.38           13.38       13.38

LTM Operating Cash Flow (EDITDA)      $17.60      $13.98          $12.41      $ 9.16
       (9/30/93)
</TABLE>
- --------------
(a)     Peer group includes AQP, NGA, NGL, and WGR.
(b)     Assumes a 35% tax rate and deferred tax component is zero.
(c)     Based on IBES estimates.
- -----------------------------------------------------------------------------   
Valero Natural Gas Company                                                D.4

<PAGE>   18
Dillon, Read & Co. Inc.                                  December 10, 1993
- --------------------------------------------------------------------------
                            VALUATION OVERVIEW
- --------------------------------------------------------------------------  

                         Trading Company Analysis
                            Industry Group(a)
                             (Tax Rate = 35%)

<TABLE>
<CAPTION>
                                          Indicated Value per Unit
                                     ------------------------------------
Multiple Parameter                        Actual             Adjusted
- ------------------                   ----------------    ----------------
                                      Mean     Median     Mean     Median
                                     ------    ------    ------    ------
<S>                                  <C>       <C>       <C>       <C>
Net Income to Common (b)
  LTM (9/30/93)                      $13.92    $13.80      NM        NM
  1993 (c)                            15.98     14.68    $15.98    $14.68
  1994 (c)                            13.45     12.45     13.45     12.45

Cash Flow From Operations (b)
  LTM (9/30/93)                      $17.87    $20.18    $16.02    $18.10
  1994E                               13.30     14.29     13.30     14.29

LTM Operating Cash Flow (EDITDA)     $16.71    $19.74    $11.61    $14.33
  (9/30/93)
</TABLE>
- ---------------
(a) Industry group includes AOG, AQP, NGA, TEJ, TPC, NGL, DGP and WGR.
(b) Assumes a 35% tax rate and deferred tax component is zero.
(c) Based on IBES estimates.
- --------------------------------------------------------------------------
Valero Natural Gas Company                                             D.5


<PAGE>   19
Dillon, Read & Co. Inc.                                  December 10, 1993
- --------------------------------------------------------------------------
                           VALUATION OVERVIEW
- --------------------------------------------------------------------------

                        Trading Company Analysis     
                              Peer Group(a)
                             (Tax Rate = 0%)

<TABLE>
<CAPTION>
                                           Indicated Value per Unit
                                      ------------------------------------
Multiple Parameter                         Actual             Adjusted
- ------------------                    ----------------    ----------------
                                       Mean     Median     Mean     Median
                                      ------    ------    ------    ------
<S>                                   <C>       <C>       <C>       <C>
Net Income to Common (b)
  LTM (9/30/93)                       $15.45    $15.84      NM        NM
  1993 (c)                             19.97     19.97    $19.97    $19.97
  1994 (c)                             19.15     19.15     19.15     19.15

Cash Flow From Operations (b)
  LTM (9/30/93)                       $18.44    $18.87    $14.28    $14.61
  1994E                                13.19     13.19     13.19     13.19

LTM Operating Cash Flow (EDITDA)      $17.60    $13.98    $12.41    $ 9.16
  (9/30/93)
</TABLE>
- ---------------
(a) Peer group includes AQP, NGA, NGL, and WGR.
(b) Assumes a 0% tax rate.
(c) Based on IBES estimates.
- --------------------------------------------------------------------------
Valero Natural Gas Company                                             D.6


<PAGE>   20
Dillon, Read & Co. Inc.                                  December 10, 1993
- --------------------------------------------------------------------------
                           VALUATION OVERVIEW
- --------------------------------------------------------------------------
                        Trading Company Analysis 
                           Industry Group(a)
                            (Tax Rate = 0%)

<TABLE>
<CAPTION>
                                           Indicated Value per Unit
                                      ------------------------------------
Multiple Parameter                         Actual             Adjusted
- ------------------                    ----------------    ----------------
                                       Mean     Median     Mean     Median
                                      ------    ------    ------    ------
<S>                                   <C>       <C>       <C>       <C>
Net Income to Common (b)
  LTM (9/30/93)                       $21.42    $21.23      NM        NM
  1993 (c)                             24.58     22.58    $24.58    $22.58
  1994 (c)                             20.69     19.55     20.69     19.15

Cash Flow From Operations (b)
  LTM (9/30/93)                       $20.41    $23.05    $15.80    $17.85
  1994E                                13.12     14.08     13.12     14.08

LTM Operating Cash Flow (EDITDA)      $16.71    $19.74    $11.61    $14.33
  (9/30/93)
</TABLE>
- ---------------
(a) Industry group includes AOG, AQP, NGA, TEJ, TPC, NGL, DGP and WGR.
(b) Assumes a 0% tax rate.
(c) Based on IBES estimates.  
- --------------------------------------------------------------------------
Valero Natural Gas Company                                             D.7


<PAGE>   21
Dillion, Read & Co. Inc.                                   December 10, 1993
- ----------------------------------------------------------------------------
                                 VALUATION OVERVIEW
- ----------------------------------------------------------------------------

Comparable Company Acquisitions
- -------------------------------

- -  An analysis of comparable company acquisitions yields a range of EBITDA 
   multiples from 3.5x - 11.2x(a)

                                                Implied Value
                        EBITDA Multiple            Per Unit
                        ---------------         -------------
            Mean             6.8x                   $8.43
            Median           6.9x                   $9.04


Historical Premiums Paid In Non-Control Position Buyouts
- --------------------------------------------------------

- -  An analysis of 137 buyouts of non-control positions yields a wide range of
   premiums paid over market prices. However 72% of the transactions fall
   within a range of 0 to 70% (b)

                                                 Implied Value
                           Premium                  Per Unit
                           -------               -------------       
            Mean            35.2%                    $12.00
            Median          33.0%                    $11.80

- ---------------
(a)  See Appendix 3 for a tabulation of comparable company acquisitions.
(b)  Based on the premium to market one-month prior to the announcement date.
     The closing price of VLP was $8 7/8/unit on 9/14/93. Statistical data
     implicit in the analysis is based on the buyouts of 137 non-control
     positions since 1/1/86.

- ----------------------------------------------------------------------------
Valero Natural Gas Company                                               D.8

<PAGE>   22
Dillon, Read & Co. Inc.                                   December 10, 1993
- ---------------------------------------------------------------------------

                 PRE-TAX DISCOUNTED CASH FLOW ANALYSIS   

- ---------------------------------------------------------------------------
Valero Natural Gas Company


[Confidential Treatment Has Been Requested]  








<PAGE>   23
DILLON, READ & CO. INC                                        DECEMBER 10, 1993
- --------------------------------------------------------------------------------




                      COMPARABLE COMPANY TRADING ANALYSIS







- --------------------------------------------------------------------------------
VALERO NATURAL GAS COMPANY
<PAGE>   24
- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                                12/08/93
                       VALERO NATURAL GAS PARTNERS, L.P.
         IMPLIED VALUATION RANGES BASED ON PEER GROUP TRADING MULTIPLES
- --------------------------------------------------------------------------------

Implied Valuation of Total Partners' Capital
- --------------------------------------------
<TABLE>                                         
<CAPTION>                                                                           Implied Market    Implied Equity
                                                Comparable Company Trading          Capitalization     Market Value
                                                        Multiples (b)                 For VLP (c)       For VLP (c)
                                 Adj. VLP     -------------------------------       --------------    --------------           
      Valuation Criteria         Results(a)   Mean    Median     High    Low        Mean    Median    Mean    Median
      ------------------         ----------  -----    ------     ----    ---       -----    ------   -----    ------
<S>                              <C>         <C>      <C>        <C>      <C>      <C>      <C>       <C>      <C>
LTM Net Income to Common         $ (1.7)     15.9x    16.4x      19.9x    11.0x    $627.6   $627.6       NA       NA
LTM Cash Flow From Operations      41.4       6.7x     6.8x       8.4x     4.6x     903.5    909.9    275.9    282.3
1994E Cash Flow From Operations    39.3       6.5x     6.5x       6.9x     6.1x     882.6    882.6    255.0    255.0

1993E Net Income                   13.6      18.2x    18.2x      18.8x    17.5x     874.9    874.9    247.3    247.3
1994E Net Income                   16.1      14.7x    14.7x      15.1x    14.4x     864.8    864.8    237.2    237.2

LTM Operating Cash
  Flow / EBITDA                   104.0       8.3x     7.7x      11.3x      6.5x    863.9    802.2    236.4    174.6
</TABLE>


Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
- ------------------------------------------------------------------------------
 By Public Values
 ----------------

<TABLE>
<CAPTION>
                                     Total Value of Public Units                         Value Per Public Unit
                                  -----------------------------------             ---------------------------------
    Valuation Criteria             Mean      Median     High    Low                Mean     Median    High      Low
    ------------------            ------    -------   -----    ----               -----     ------    ----      ---
<S>                               <C>       <C>      <C>       <C>                <C>       <C>       <C>      <C>
LTM Net Income to Common             NA        NA       NA         NA                NA        NA       NA        NA
LTM Cash Flow From Operations     140.6     143.9    177.2      97.55             14.48     14.82    18.24     10.04     
1994E Cash Flow From 
  Operations                      130.0     130.0    138.8     121.2              13.38     13.38    14.29     12.48

1993E Net Income                  126.1     126.1    130.7     121.4              12.98     12.98    13.46     12.50
1994E Net Income                  120.9     120.9    123.6     118.2              12.45     12.45    12.73     12.17
 LTM Operating Cash
   Flow/EBITDA                    120.5      89.0    279.7      24.2              12.41      9.16    28.80      2.49
</TABLE>

 ----------------

(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are for
    period ended September 30, 1993. Results are tax affected at 0.0% to make
    comparative analysis relevant. Taxes are assumed to be current (i.e., 
    Deferred = 0) Projected net income figures, also tax affected, represent 
    the median earnings estimates made by Wall Street research analysts (as 
    reported by I.B.E.S. as of 11/18/93). LTM based financials adjusted to 
    reflect non-recurring items.
(b) Comparable companies used in analysis include Aquila Gas Pipeline,
    Associated Natural Gas, Trident NGL, and Western Gas Resources. Market
    Resources. Market values are as of 12/07/93.
(c) Net debt = $627.6 million.

<PAGE>   25

- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                                 12/08/93

                           Valero Natural Gas Partners, L.P.
               Implied Valuation Ranges Based on Industry Trading Multiples
- --------------------------------------------------------------------------------

Implied Valuation of Total Partners' Capital
- --------------------------------------------
<TABLE>
<CAPTION>
                                                                           Implied Market   Implied Equity 
                                                  Comparable Company       Capitalization    Market Value
                                                 Trading Multiples(b)        For VLP(c)       For VLP(c)
                                             ----------------------------  ---------------  --------------
                                 Adj. VLP
      Valuation Criteria        Results(a)   Mean   Median   High    Low    Mean   Median   Mean    Median
      ------------------        ----------   ----   ------   ----   -----   ----   ------   ----    ------
<S>                               <C>        <C>     <C>     <C>    <C>    <C>     <C>      <C>     <C>
LTM Net Income to Common          ($1.1)     21.8x   21.6x   36.7x  10.7x  $627.6  $627.6      NA      NA
LTM Cash Flow From Operations      41.4       7.4x    8.3x    9.7x   4.6x   932.9   972.5   305.3   344.9
1994E Cash Flow From Operations    39.3       6.4x    6.9x    8.3x   3.6x   881.1   899.8   253.5   272.2

1993E Net Income                   13.6      22.3x   20.5x   32.9x  12.3x   932.0   907.2   304.4   279.6
1994E Net Income                   16.1      15.9x   14.7x   21.9x   9.9x   883.8   864.8   256.3   237.2

LTM Operating Cash Flow/EBITDA    104.0       8.2x    8.7x   11.3x   4.5x   848.9   900.6   221.3   273.1
</TABLE>


Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
- ------------------------------------------------------------------------------
By Public Units
- ---------------

<TABLE>
<CAPTION>                                
                                   Total Value of Public Units                  Value Per Public Unit
                                  ------------------------------             -----------------------------
      Valuation Criteria          Mean     Median   High     Low             Mean   Median   High     Low
      ------------------          ----     ------   ----     ----            ----   ------   -----    ----
<S>                               <C>       <C>     <C>      <C>             <C>     <C>     <C>     <C>
LTM Net Income to Common             NA        NA      NA      NA               NA      NA      NA      NA
LTM Cash Flow From Operations     155.6     175.8   204.5    97.5            16.02   18.10   21.06   10.04
1994E Cash Flow From Operations   129.2     138.8   167.0    72.5            13.30   14.29   17.19    7.47

1993E Net Income                  155.1     142.5   228.6    85.6            15.98   14.68   23.54    8.81
1994E Net Income                  130.6     120.9   180.1    80.9            13.45   12.45   18.54    8.33

LTM Operating Cash Flow/EBITDA    112.8     139.2   279.7   (79.3)           11.61   14.33   28.80   (8.16)
</TABLE>

- ----------------------
(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are for
    period ended September 30, 1993.
    Results are tax affected at 35% to make comparative analysis relevant. 
    Taxes are assumed to be current (i.e. Deferred = 0).
    Projected net income figures, also tax affected, represent the median 
    earnings estimates made by Wall Street research analysts (as reported by 
    I.B.E.S. as of 11/18/93). LTM based financials adjusted to reflect non-
    recurring items.
(b) Comparable companies used in analysis include American Oil & Gas, Aquila 
    Gas Pipeline, Associated Natural Gas, Tejas Natural Gas, Tejas Power Corp.,
    Trident NGL, USX - Delhi Group, and Western Gas Resources. Market values 
    are as of 12/07/93.
(c) Net debt = $627.6 million.
<PAGE>   26



- ------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                               12/09/93

                       VALERO NATURAL GAS PARTNERS, L.P.
        IMPLIED VALUATION RANGES BASED ON PEER GROUP TRADING MULTIPLES
- ------------------------------------------------------------------------------

IMPLIED VALUATION OF TOTAL PARTNERS' CAPITAL
- --------------------------------------------
<TABLE>
<CAPTION>                                                                             
                                                                                           Implied Market        Implied Equity
                                                                                           Capitalization         Market Value
                                               Comparable Company Trading Multiples(b)       For VLP(c)            For VLP(c)
                                    Act. VLP   ---------------------------------------    -----------------     -----------------
       Valuation Criteria          Results(a)   Mean      Median      High        Low      Mean      Median      Mean      Median
       ------------------          ----------  ------     ------     ------      -----    ------     ------     ------     ------
<S>                                 <C>         <C>       <C>         <C>        <C>      <C>        <C>        <C>        <C>
LTM Net Income to Common            $ 12.2      15.7x     16.1x       19.9x      10.7x    $818.9     $823.8     $191.3     $196.2
LTM Cash Flow From Operations         46.1       6.7x      6.8x        8.4x       4.6x     935.2      942.4      307.6      314.8
1994E Cash Flow From Operations       39.3       6.5x      6.5x        6.9x       6.1x     882.6      882.6      255.0      255.0
                                                                                                           
1993E Net Income                      13.6      18.2x     18.2x       18.8x      17.5x     874.9      874.9      247.3      247.3
1994E Net Income                      16.1      14.7x     14.7x       15.1x      14.4x     864.8      864.8      237.2      237.2
                                                                                                           
LTM Operating Cash Flow/EBITDA       115.9       8.3x      7.7x       11.3x       6.5x     962.8      894.0      335.3      266.4
</TABLE>                                                                        
                                                                              
                                                                    
IMPLIED VALUE OF PUBLIC UNITS ASSUMING 51.0% OF PARTNERS' VALUE IS REPRESENTED
- ------------------------------------------------------------------------------
BY PUBLIC UNITS
- ---------------
 
<TABLE>
<CAPTION>
                                                                                                                        
                                          Total Value of Public Units                            Value Per Public Unit        
                                    --------------------------------------                ---------------------------------------
       Valuation Criteria            Mean     Median     High        Low                   Mean     Median       High       Low  
       ------------------           ------    ------    ------      ------                ------    -------     ------     ------
 <S>                                 <C>       <C>       <C>         <C>                   <C>        <C>        <C>        <C>   
LTM Net Income to Commmon           $ 97.5    $100.0    $123.8      $ 66.2                $10.04     $10.30     $12.75     $ 6.82
LTM Cash Flow From Operations        156.8     160.5     197.6       108.7                 16.15      16.52      20.24      11.20
1994E Cash Flow From Operations      130.0     130.0     138.8       121.2                 13.38      13.38      14.29      12.48
                                                                                                                     
1993E Net Income                     126.1     126.1     130.7       121.4                 12.98      12.98      13.46      12.50
1994E Net Income                     120.9     120.9     123.6       118.2                 12.45      12.45      12.73      12.17
                                                                                                                     
LTM Operating Cash Flow/EBITDA       170.9     135.8     348.4        63.6                 17.60       1.98      35.87       6.55

</TABLE>                                                                       
                                                                           
- -----------------------
(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are for
    period ended September 30, 1993. Results are tax affected at a 35% current
    rate, (deferred component not included), to make analysis relevant.
    Projected net income figures, also tax affected, represent the median
    earnings estimates made by Wall Street research analysts (as reported by
    I.B.E.S. as of 11/18/93).
(b) Comparable companies used in analysis include Aquila Gas Pipeline,
    Associated Natural Gas, Trident NGL, and Western Gas Resources. Market
    values as of 12/07/93.
(c) Net debt = $627.6 million.


<PAGE>   27

- -----------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                              12/09/93

                       Valero Natural Gas Partners, L.P.
          Implied Valuation Ranges Based on Industry Trading Multiples
- -----------------------------------------------------------------------------

  Implied Valuation of Total Partners' Capital
  --------------------------------------------
<TABLE>
<CAPTION>
                                                                         Implied Market       Implied Equity
                                           Comparable Company            Capitalization        Market Value
                                           Trading Multiples(b)            For VLP(c)           For VLP(c)
                          Adj. VLP   ----------------------------------  ---------------     ----------------
   Valuation Criteria    Results(a)  Mean     Median    High      Low     Mean    Median      Mean     Median
   ------------------    ----------  ----     ------    ----     ------  -----   -------     ------    ------
  <S>                       <C>       <C>      <C>      <C>      <C>     <C>     <C>         <C>       <C>
  LTM Net Income to 
    Common                 $ 12.2     21.8x    21.6x    36.7x    10.7x   $892.8  $  890.5    $265.2    $262.9
  LTM Cash Flow From 
    Operations               46.1      7.4x     8.3x     9.7x     4.6x    968.0   1,012.1     340.4     384.6
  1994E Cash Flow From 
    Operations               39.3      6.4x     6.9x     8.3x     3.6x    881.1     899.8     253.5     272.2

  1993E Net Income           13.6     22.3x    20.5x    32.9x    12.3x    932.0     907.2     304.4     279.6
  1994E Net Income           16.1     15.9x    14.7x    21.9x     9.9x    883.8     864.2     256.3     237.2

  LTM Operating Cash Flow/ 
    EBITDA                  115.9      8.2x     8.7x    11.3x     4.5x    946.0   1,003.7     318.4     376.1
</TABLE>

 

 Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
  By Public Units

<TABLE>
<CAPTION>
                             Total Value of Public Units                       Value Per Public Unit
                           --------------------------------              ----------------------------------
   Valuation Criteria      Mean     Median    High      Low               Mean     Median     High      Low
   ------------------      ----    ------    ----     -----              ----     ------     ----     -----
  <S>                      <C>      <C>      <C>      <C>                <C>       <C>       <C>       <C>
  LTM Net Income to 
    Common                 $135.2   $134.0   $227.7   $ 66.2             $13.92    $13.80    $23.44    $ 6.82
  LTM Cash Flow From 
    Operations              173.5    196.0    228.0    108.7              17.87     20.18     23.48     11.20
  1994E Cash Flow From 
    Operations              129.2    138.8    167.0     72.5              13.30     14.29     17.19      7.47

  1993E Net Income          155.2    142.5    228.6     85.6              15.98     14.68     23.54      8.81
  1994E Net Income          130.6    120.9    180.1     80.9              13.45     12.45     18.54      8.33

  LTM Operating Cash Flow/ 
    EBITDA                  162.3    191.7    348.4    (51.7)             16.71     19.74     35.87     (5.33)
</TABLE>




- ---------------        
(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are for 
    period ended September 30, 1993.  Results are tax affected at 35% current 
    rate, (deferred component not included),  to make comparative analysis 
    relevant. Projected net income figures, also tax affected, represent the 
    median earnings estimates made by Wall Street research analysts (as 
    reported by I.B.E.S. as of 11/18/93).
                                       
(b) Comparable companies used in analysis include American Oil & Gas, Aquila 
    Gas Pipeline, Associated Natural Gas, Tejas Natural Gas, Tejas Power 
    Corp., Trident NGL, USX -- Delhi Group, and Western Gas Resources.  
    Market values are as of 12/07/93.           

(c) Net debt = $627.6 million.

<PAGE>   28



- -----------------------------------------------------------------------
Dillon, Read & Co. Inc.                                        12/09/93

                    Valero Natural Gas Partners, L.P.
      Implied Valuation Ranges Based on Peer Group Trading Multiples
- -----------------------------------------------------------------------

Implied Valuation of Total Partners' Capital
- --------------------------------------------
<TABLE>
<CAPTION>

                                                                             Implied Market       Implied Equity
                                              Comparable Company             Capitalization        Market Value
                                             Trading Multiples(b)              For VLP(c)           For VLP(c)
                              Adj. VLP   -------------------------------    ----------------     ----------------
      Valuation Criteria     Results(a)  Mean    Median    High     Low     Mean      Median     Mean      Median
      ------------------     ----------  ----    ------    ----     ---     ----      ------     ----      ------
  <S>                         <C>       <C>      <C>      <C>      <C>     <C>        <C>        <C>       <C>
  LTM Net Income to Common    ($1.7)    15.7x    16.1x    19.9x    10.7x   $  627.6   $  627.6       NA       NA
  LTM Cash Flow From
   Operations                  40.8      6.7x     6.8x     8.4x     4.6x      899.6      905.9    272.0    278.4
  1994E Cash Flow From
    Operations                 38.7      6.5x     6.5x     6.9x     6.1x      879.0      879.0    251.4    251.4

  1993E Net Income             21.0     18.2x    18.2x    18.8x    17.5x    1,008.1    1,008.1    380.5    380.5
  1994E Net Income             24.8     14.7x    14.7x    15.1x    14.4x      992.5      992.5    364.9    364.9

  LTM Operating Cash
    Flow / EBITDA             104.0      8.3x     7.7x    11.3x     6.5x      863.9      802.2    236.4    174.6

</TABLE>


Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
- ------------------------------------------------------------------------------
By Public Units
- ---------------

<TABLE>
<CAPTION>
                                Total Value of Public Units                         Value Per Public Unit
                             --------------------------------                ---------------------------------
     Valuation Criteria       Mean    Median    High      Low                Mean     Median     High      Low
     ------------------       ----    ------    ----      ---                ----     ------     ----      ---
  <S>                         <C>      <C>      <C>       <C>                <C>       <C>       <C>       <C>
  LTM Net Income to Common      NA       NA       NA       NA                  NA        NA        NA        NA
  LTM Cash Flow From                                                  
    Operations                137.7    141.9    174.7      96.1              14.28     14.61     17.99      9.90
  1994E Cash Flow From                                                    
    Operations                128.1    128.1    136.8     119.5              13.19     13.19     14.08     12.30

  1993E Net Income            194.0    194.0    201.1     186.8              19.97     19.97     20.71     19.23
  1994E Net Income            186.0    186.0    190.2     181.9              19.15     19.15     19.58     18.73
                                                         
  LTM Operating Cash
    Flow / EBITDA             120.5     89.0    279.7      24.2              12.41      9.16     28.80      2.49

</TABLE>

- -------------- -------------------------------------------------------
(a)  Latest twelve months results for Valero Natural Gas Partners, L.P.
     are for period ended September 30, 1993.
     LTM and projected figures are not tax affected.
     LTM based financials adjusted to reflect non-recurring items.
(b)  Comparable companies used in analysis include Aquila Gas Pipeline, 
     Associated Natural Gas, Trident NGL, and Western Gas Resources. 
     Market values are as of 12/07/93.
(c)  Net debt = $627.6 million.


<PAGE>   29

- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                                 12/09/93

                           Valero Natural Gas Partners, L.P.
               Implied Valuation Ranges Based on Industry Trading Multiples
- --------------------------------------------------------------------------------

Implied Valuation of Total Partners' Capital
- --------------------------------------------
<TABLE>
<CAPTION>
                                                                           Implied Market    Implied Equity 
                                                  Comparable Company       Capitalization     Market Value
                                                 Trading Multiples(b)        For VLP(c)        For VLP(c)
                                             ----------------------------  ---------------   --------------
                                 Adj. VLP
    Valuation Criteria          Results(a)   Mean   Median   High    Low   Mean    Median    Mean    Median
    ------------------          ----------   ----   ------   ----   -----  ----    ------    ----    ------
<S>                               <C>        <C>     <C>     <C>    <C>   <C>      <C>       <C>     <C>
LTM Net Income to Common          ($1.7)     21.8x   21.6x   36.7x  10.7x  $627.6   $627.6      NA      NA
LTM Cash Flow From Operations      40.8       7.4x    8.3x    9.7x   4.6x   928.6    967.6   301.0   340.0
1994E Cash Flow From Operations    38.7       6.4x    6.9x    8.3x   3.6x   877.5    895.9   249.9   268.3

1993E Net Income                   21.0      22.3x   20.5x   32.9x  12.3x 1,095.9  1,057.7   468.3   430.2
1994E Net Income                   24.8      15.9x   14.7x   21.9x   9.9x 1,021.8    992.5   394.3   364.9

LTM Operating Cash Flow/EBITDA    104.0       8.2x    8.7x   11.3x   4.5x   848.9    900.6   221.3   273.1
</TABLE>





Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
By Public Units
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>                                
                                    Total Value of Public Units                  Value Per Public Unit
                                  -------------------------------            -----------------------------
    Valuation Criteria            Mean     Median   High     Low             Mean   Median   High     Low
    ------------------            -----    ------   -----   -----            -----  ------   -----   -----
<S>                               <C>       <C>     <C>     <C>              <C>     <C>     <C>     <C>
LTM Net Income to Common             NA        NA      NA      NA               NA      NA      NA      NA
LTM Cash Flow From Operations     153.4     173.3   201.6    96.1            15.80   17.85   20.76    9.90
1994E Cash Flow From Operations   127.4     136.8   164.6    71.5            13.12   14.08   16.95    7.36

1993E Net Income                  238.7     219.3   351.7   131.6            24.58   22.58   36.21   13.55
1994E Net Income                  201.0     186.0   277.1   124.5            20.69   19.15   28.53   12.81

LTM Operating Cash Flow/EBITDA    112.8     139.2   279.7   (79.3)           11.61   14.33   28.80   (8.16)
</TABLE>



- ---------------
(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are for
    period ended September 30, 1993.
    LTM and projected figures are not tax affected.
    LTM based financials adjusted to reflect non-recurring items.
(b) Comparable companies used in analysis include American Oil & Gas, Aquila Gas
    Pipeline, Associated Natural Gas, Tejas Natural Gas, Tejas Power Corp., 
    Trident NGL, USX, Delhi Group, and Western Gas Resources. Market values 
    are as of 12/07/93.
(c) Net debt = $627.6 million.
<PAGE>   30


- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                                 12/09/93

                           Valero Natural Gas Partners, L.P.
            Implied Valuation Ranges Based on Peer Group Trading Multiples
- --------------------------------------------------------------------------------

Implied Valuation of Total Partners' Capital
- --------------------------------------------
<TABLE>
<CAPTION>
                                                                           Implied Market   Implied Equity 
                                                  Comparable Company       Capitalization    Market Value
                                                 Trading Multiples(b)        For VLP(c)       For VLP(c)
                                             ----------------------------  ---------------  --------------
                                 Adj. VLP
   Valuation Criteria           Results(a)   Mean   Median   High    Low    Mean   Median   Mean    Median
   ------------------           ----------   -----  ------   ----   -----  -----   ------   ----    ------
<S>                               <C>       <C>     <C>     <C>    <C>    <C>      <C>      <C>     <C>
LTM Net Income to Common          $18.7     15.7x   16.1x   19.9x  10.7x  $ 921.9    929.4  $294.4  $301.9
LTM Cash Flow From Operations      52.7      6.7x    6.8x    8.4x   4.6x    978.9    987.1   351.4   359.6 
1994E Cash Flow From Operations    38.7      6.5x    6.5x    6.9x   6.1x    879.0    879.0   251.4   251.4
                                                                                   
1993E Net Income                   21.0     18.2x   18.2x   18.8x  17.5x  1,008.1  1,008.1   380.5   380.5
1994E Net Income                   24.8     14.7x   14.7x   15.1x  14.4x    992.5    992.5   364.9   364.9

LTM Operating Cash Flow/EBITDA    115.9      8.3x    7.7x   11.3x   6.5x    962.8    894.0   335.3   266.4

</TABLE>


Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
By Public Units
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>                                
                                   Total Value of Public Units                  Value Per Public Unit
                                 -------------------------------            ------------------------------
   Valuation Criteria             Mean    Median    High     Low             Mean   Median   High     Low
   ------------------            -----   -------    ----     ---            -----   ------   ----     ---
<S>                              <C>      <C>     <C>     <C>              <C>      <C>     <C>     <C>
LTM Net Income to Common         $150.6   $153.9  $190.5  $101.9           $15.45   $15.84  $19.62  $10.49
LTM Cash Flow From Operations     179.1    183.3   225.7   124.2            18.44    18.87   23.23   12.79
1994E Cash Flow From Operations   128.1    128.1   136.8   119.5            13.19    13.19   14.08   12.30

1993E Net Income                  194.0    194.0   201.1   186.8            19.97    19.97   20.71   19.23 
1994E Net Income                  186.0    186.0   190.2   181.9            19.15    19.15   19.58   18.73   
                                                                         
LTM Operating Cash Flow/EBITDA    170.9    135.8   348.4    63.6            17.60    13.98   35.87    6.55
</TABLE>

- ---------------
(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are 
    for period ended September 30, 1993.
    LTM and projected figures are not tax affected
(b) Comparable companies used in analysis include Aquila Gas Pipeline, 
    Associated Natural Gas, Trident NGL, and Western Gas Resources. Market
    values are as of 12/07/93. 
(c) Net debt = $627.6 million.

<PAGE>   31

- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                                12/09/93 

                       Valero Natural Gas Partners, L.P.
          Implied Valuation Ranges Based on Industry Trading Multiples
- --------------------------------------------------------------------------------

Implied Valuation of Total Partners' Capital
- --------------------------------------------
<TABLE>
<CAPTION>
                                                                             Implied Market     Implied Equity 
                                                  Comparable Company         Capitalization      Market Value
                                                 Trading Multiples(b)          For VLP(c)         For VLP(c)
                                             ----------------------------  ------------------  ---------------
                                 Adj. VLP
    Valuation Criteria          Results(a)   Mean   Median   High    Low     Mean     Median    Mean    Median
    ------------------          ----------   -----  ------   ----   -----  --------  --------  ------   ------
<S>                              <C>         <C>     <C>     <C>    <C>    <C>       <C>       <C>      <C>
LTM Net Income to Common         $ 18.7      21.8x   21.6x   36.7x  10.7x  $1,035.6  $1.032.0  $408.0   $404.4
LTM Cash Flow From Operations      52.7       7.4x    8.3x    9.7x   4.6x   1,016.4   1,066.8   388.8    439.2
1994E Cash Flow From Operations    38.7       6.4x    6.9x    8.3x   3.6x     877.5     895.9   249.9    268.3
                                                                                   
1993E Net Income                   21.0      22.3x   20.5x   32.9x  12.3x   1,095.9   1,057.7   468.3    430.2
1994E Net Income                   24.8      15.9x   14.7x   21.9x   9.9x   1,021.8     992.5   394.3    364.9
                                                                                   
LTM Operating Cash Flow/EBITDA    115.9       8.2x    8.7x   11.3x   4.5x     946.0   1,003.7   318.4    376.1
</TABLE>                                                                      
                                                                              




Implied Value of Public Units Assuming 51.0% of Partners' Value is Represented
By Public Units
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>                                
                                      Total Value of Public Units                  Value Per Public Unit
                                 -------------------------------------       ---------------------------------
    Valuation Criteria            Mean     Median      High      Low          Mean     Median   High     Low
    ------------------           ------    ------     ------    ------       -----     ------  ------   ------
<S>                              <C>       <C>        <C>       <C>          <C>       <C>     <C>      <C>
LTM Net Income to Common         $208.0    $206.2     $350.3    $101.9       $21.42    $21.23  $36.07   $10.49
LTM Cash Flow From Operations     198.2     223.9      260.5     124.2        20.41     23.05   26.82    12.79
1994E Cash Flow From Operations   127.4     136.8      164.6      71.5        13.12     14.08   16.95     7.36 
                                                                                            
1993E Net Income                  238.7     219.3      351.7     131.6        24.58     22.58   36.21    13.55
1994E Net Income                  201.0     186.0      277.1     124.5        20.69     19.15   28.53    12.81
                                                                                            
LTM Operating Cash Flow/EBITDA    162.3     191.7      348.4     (51.7)       16.71     19.74   35.87    (5.33)
</TABLE>                                                                      
                                                                             
- ---------------------
(a) Latest twelve months results for Valero Natural Gas Partners, L.P. are for
    period ended September 30, 1993.
    LTM and projected figures are not tax affected.
(b) Comparable companies used in analysis include American Oil & Gas, Aquila Gas
    Pipeline, Associated Natural Gas, Tejas Natural Gas, Tejas Power Corp.,
    Trident NGL, USX - Delhi Group, and Western Gas Resources. Market values
    are as of 12/07/93.
(c) Net debt = $627.6 million.
<PAGE>   32
DILLON, READ & CO. INC.                                                 12/09/93
  
  SUMMARY VALUATION ANALYSIS OF SELECTED NATURAL GAS GATHERING AND PROCESSING
                                   COMPANIES
                                                                          PAGE 1

<TABLE>
<CAPTION>
                                    Valero            American       Aquila Gas       Associated                      
                                Natural Gas (m)    Oil & Gas (g)    Pipeline (l)    Natural Gas (b)  Tejas Gas (i)  Tejas Power (g)
                                ---------------    -------------    ------------    ---------------  -------------   --------------
<S>                               <C>                <C>             <C>              <C>              <C>            <C>
MARKET DATA:                               
                                           
  Ticker Symbol                      VLP               AOG             AQP               NGA             TEJ             TPC     
  Stock Exchange                     NYSE              NYSE            NYSE              NYSE            NYSE            ASE     
                                                                                                                                 
  Latest Annual Financial                                                                                                        
    Results                        12/31/92          12/31/92        12/31/92          12/31/92        12/31/92       12/31/92   
  Latest Quarterly Financial                                                                                                     
    Results                        09/30/93          09/30/93        09/30/93          09/30/93        09/30/93       09/30/93   
                                                                                                                                 
  Common Stock Price as of                                                                                                       
    12/08/93                       $11.000            $9.750         $11.250           $31.000         $49.750         $9.875    
  Common Shares Outstanding           19.1              25.7            29.4              13.3            10.7           14.0    
                                                                                                                                 
    52-Week High Price             $11.375           $14.500         $16.375           $41.000         $61.000        $10.875    
    52-Week Low Price                7.375             9.500          10.625            25.500          21.500          6.875    
        Current Price As %  
          of 52-Week High             96.7%             67.2%           68.7%             75.6%           81.6%          90.8%   
  
   Total Equity Market Value        $209.6            $250.9          $330.8            $412.5          $530.8         $138.5    
   Net Market Capitalization (a)     837.2             329.0           443.0             584.0           977.6          145.5    
                                                                                                           
FINANCIAL PERFORMANCE DATA:                                                                                                      
                                                                                                         
  LTM Total Operating Revenues    $1,335.1            $531.2          $260.9          $1,313.3          $987.5         $245.2    
  LTM Operating Cash Flow                                                                                
     / EBITDA (b)                    104.0              38.9            65.2              65.0            96.0           16.7    
  LTM Operating Income                                                                                   
    / EBIT (c)                        63.6              22.1            49.6              43.8            66.5            7.6    
  LTM Net Income to Common (d)        (1.7)              9.3            24.5              19.5            22.8            4.1    
  LTM Cash Flow From                                                                                     
    Operations (c)                    41.4              29.8            59.5              47.7            58.4           14.3    
                                                                                                         
  Earnings Per Share                                                                                                             
    Latest Twelve Months            ($0.06)            $0.36           $1.02             $1.61           $2.14          $0.27    
    1993E EPS  (f)                   $0.72             $0.45             NA              $1.60           $1.65          $0.30    
    1994E EPS  (f)                    0.85              0.80             NA               2.00            2.30           0.45    
                                                                                                               

  Cash Flow Per Share  
    Projection         
    1993E CFPS (o)                   $2.68               NA              NA              $3.70           $4.25          $1.15    
    1994E CFPS (o)                    2.06               NA              NA               4.35            6.00           1.35    
                                                                                          
  Indicated Annual Dividend                                                                                                      
    Per Share                        $0.50             $0.00           $0.05             $0.12           $0.00          $0.00    
                                                                                                             
                                                                                                                                 
BALANCE SHEET DATA:                                                                                                              
  Cash and Equivalents               $20.6             $13.9           $18.8             $20.5           $10.7          $15.9    
  Net Property, Plant &                                                                                                          
    Equipment                        741.5             274.7           296.4             385.8           586.2           72.2    
  S-T Debt (Includes                                                                                                             
    Current I Debt)                   37.9              21.9             0.0               4.0             0.0            4.8    
  Long-Term Debt                     610.3              74.6           131.0             188.0           369.2           18.0    
  Total Preferred Stock                0.0               0.0             0.0               0.0             0.5            1.2    
  Book Value of Common                                                                                                           
    Equity                           164.7             189.7           138.3             201.1           245.1           60.4    
  Net Book Capitalization            792.2             272.3           250.5             372.6           603.8           67.3    
  Total Debt                         648.1              96.5           131.0             192.0           369.2           22.8    
                                                                                                    
</TABLE>                                   
<TABLE>
<CAPTION>                                                                                            Corporate Analysis (p)
                                       Trident NGL            USX -           Western Gas      -----------------------------------
                                      Holding, Inc. (m)    Delhi Group        Resources (k)     Mean     Median     High      Low
                                      -----------------    -----------        -------------    ------    ------    ------     ----
<S>                                      <C>                <C>                <C>             <C>       <C>       <C>        <C>
MARKET DATA:                               
                                           
  Ticker Symbol                             NGL                DGP                 WGR                                          
  Stock Exchange                            NYSE               NYSE                NYSE                                         
                                                                                                                                
  Latest Annual Financial                                                                                                         
    Results                              12/31/92           12/31/92            12/31/92        
  Latest Quarterly Financial                                                                                                      
    Results                              06/30/93           09/30/93            09/30/93        
                                                                                                                                  
  Common Stock Price as of                                                                                                        
    12/08/93                             $10.875            $16.875             $30.125                                           
  Common Shares Outstanding                 27.7               14.0                25.6                                           
                                                                                                                                  
                                                                                                                                  
  52-Week High Price                     $13.125            $24.750             $45.125                                           
  52-Week Low Price                       10.750             15.250              23.500                                           
      Current Price As %                                                                         
        of 52-Week High                     82.9%              68.2%               66.8%         75.2%     72.2%      90.8%    66.8%
                                                                                                                                  
  Total Equity Market Value               $301.7             $236.3              $772.3        $371.7    $316.2     $722.3    138.5
  Net Market Capitalization (a)            674.7              337.6             1,334.1         603.2     513.5    1,334.1    145.5
                                                                                                                                  
FINANCIAL PERFORMANCE DATA:                                                                                                       
                                                                                                                                  
  LTM Total Operating Revenues            $611.0             $528.2              $816.2                                          
  LTM Operating Cash Flow                                                                                                         
     / EBITDA (b)                          103.9               75.5               118.2                                          
  LTM Operating Income                                                                                                            
    / EBIT (c)                              71.0               37.1                72.6                                          
  LTM Net Income to Common (d)              22.3               10.4                38.8                                          
  LTM Cash Flow From                                                                                                              
    Operations (c)                          65.2               49.2                93.8                                          
                                                                                                                                  
  Earnings Per Share                                                                                                              
    Latest Twelve Months                   $0.80              $0.74               $1.52                                          
    1993E EPS  (f)                           NA               $1.40               $1.73                                          
    1994E EPS  (f)                           NA                1.75                2.10                                          
                                                                                                                                  
  Cash Flow Per Share                                                                                                             
    Projection                                                                                                                     
    1993E CFPS (o)                           NA               $3.88               $4.00                                           
    1994E CFPS (o)                           NA               $4.76                5.00                                         
                                                                                                 
                                                                                                                                  
  Indicated Annual Dividend                                                                                                       
    Per Share                              $0.05              $0.20               $0.20                    
                                                                                                 
BALANCE SHEET DATA:                                                                                                               
                                                                                                                                  
  Cash and Equivalents                     $11.8               $2.2                $9.7                                          
  Net Property, Plant &                                                                          
    Equipment                                0.0              508.9               755.3                                
  S-T Debt (Includes                                                                             
    Current I Debt)                         10.0                0.6                 0.0                                
  Long-Term Debt                           374.9              100.4               493.0                                
  Total Preferred Stock                      0.0                2.5                 0.2                                
  Book Value of Common                                                                           
    Equity                                 229.3              201.7               305.5                                
  Net Book Capitalization                  602.4              303.0               789.0                                
  Total Debt                               384.9              101.0               493.0         
</TABLE>                                                            
<PAGE>   33
- --------------------------------------------------------------------------------

DILLON, READ & CO. INC.                                                10/09/93

         SUMMARY VALUATION ANALYSIS OF SELECTED NATURAL GAS GATHERING
                           AND PROCESSING COMPANIES

                                                                          Page 2
- --------------------------------------------------------------------------------


<TABLE> 
<CAPTION> 
                                           Valero        American    Aquila Gas     Associated                
                                        Natural Gas(m)   Oil & Gas   Pipeline(l)   Natural Gas(b)   Tejas Gas(l)   Tejas Power(g) 
                                       ---------------  -----------  -----------   --------------   ------------   --------------
<S>                                       <C>             <C>          <C>            <C>             <C>             <C>     
VALUATION INFORMATION: 

  Equity Market Value to: 
                          
    LTM Net Income to Common                 NA x          27.4 x       11.0 x         19.2 x          23.2 x           36.7 x    
    LTM Cash Flow From Operations           5.1 x           8.4 x        5.6 x          8.6 x           9.1 x            9.7 x  
    Book Value of Common Equity            1.27 x          1.32 x       2.39 x         2.05 x          2.17 x           2.29 x 

    1993E Net Income  (f)                  15.4 x          21.7 x         NA x         19.4 x          30.2 x           32.9 x 
    1994E Net Income  (f)                  13.0 x          12.2 x         NA x         15.5 x          21.6 x           21.9 x 

    1993E Cash Flow Per Share (o)           4.1 x            NA x         NA x          8.4 x          11.7 x            8.6 x 
    1994E Cash Flow Per Share (o)           5.3 x            NA x         NA x          7.1 x           8.3 x            7.3 x 

  Net Market Capitalization to:
                               
    LTM Operating Revenues                  0.6 x           0.6 x        1.7 x          0.4 x           1.0 x            0.6 x     
    LTM Operating Cash Flow / EBITDA        8.1 x           8.5 x        6.8 x          9.0 x          10.2 x            8.7 x 
    LTM Operating Income / EBIT            13.2 x          14.9 x        8.9 x         13.3 x          14.7 x           19.1 x 

  Indicated Dividend Yield                 4.5%            0.0%         0.4%           0.4%            0.0%             0.0%   

OTHER INFORMATION:

  Net Debt / Net Book Capitalization      79.2%           30.3%        44.8%          46.0%           59.4%            10.3% 
  Net Debt / Net Market Capitalization    75.0%           25.1%        25.3%          29.4%           36.7%             4.8%     

  Payout Ratio (Using LTM EPS)              NM             0.0%         4.9%           7.4%            0.0%             0.0%      

  EBITDA / Interest Expense                1.54 x          4.43 x       6.26 x         5.18 x          3.70 x          10.72 x
  Cash Flow From Ops. / Net Debt           6.5%           36.1%        53.0%          27.8%           16.3%           206.0%     
  Cash Flow From Ops. / Interest Exp.      0.61 x          3.40 x       5.71 x         3.80 x          2.25 x           9.16 x 

  Net Working Capital / Total Sales       -3.2%            2.9%         3.4%           0.7%           -0.2%             0.2%      
  Capital Expenditures / Total Sales       2.5%            6.9%        18.5%           5.7%            1.8%             6.1% 

  % G&A/Total Sales                        3.0%            3.5%         4.1%           1.1%            2.0%             3.6% 
  % O&M/Total Sales                        5.7%            4.2%         5.3%           2.4%            3.6%             1.8% 
  % (G&A and O&M)/Total Sales              8.7%            7.7%         9.4%           3.5%            5.6%             5.4%  
                                            
  % G&A/Gross Margin                      16.5%           22.5%        12.0%          13.3%           13.0%            27.7%     
  % O&M/Gross Margin                      31.9%           26.9%        15.3%          28.4%           23.6%            14.2%    
  % (G&A and O&M)/Gross Margin            48.4%           49.4%        27.3%          41.7%           36.6%            41.9%  
</TABLE>                                   

           
<TABLE>  
<CAPTION> 
                                                                                                  Comparative Analysis (p)
                                          Trident NGL          USX -        Western Gas    -------------------------------------
                                        Holding, Inc.(m)   Delhi Group(j)   Resources(k)    Mean      Median     High      Low     
                                        ----------------   --------------   ------------   ------    --------    ------    ------  
<S>                                          <C>              <C>             <C>          <C>        <C>        <C>       <C>      
VALUATION INFORMATION:                                                                                                              
                                                                                                                                    
  Equity Market Value to:                                                                                                           
                                                                                                                                    
    LTM Net Income to Common                  13.5 x            22.7 x         19.9 x       21.7 x     21.3 x      36.7 x     11.0 x
    LTM Cash Flow From Operations              4.6 x             4.8 x          8.2 x        7.4 x      8.3 x       9.7 x      4.6 x
    Book Value of Common Equity               1.32 x            1.17 x         2.53 x       1.91 x     2.11 x      2.53 x     1.17 x
                                                                                                                                    
    1993E Net Income  (f)                       NA x            12.1 x         17.4 x       22.3 x     20.5 x      32.9 x     12.1 x
    1994E Net Income  (f)                       NA x             9.6 x         14.3 x       15.9 x     14.9 x      21.9 x      9.6 x
                                                                                                                                    
    1993E Cash Flow Per Share (o)               NA x             4.4 x          7.5 x        8.1 x      8.4 x      11.7 x      4.4 x
    1994E Cash Flow Per Share (o)               NA x             3.5 x          6.0 x        6.5 x      7.1 x       8.3 x      3.5 x
                                                                                                                                    
  Net Market Capitalization to:                                                                                                     
                                                                                                                                    
    LTM Operating Revenues                     1.1 x             0.6 x          1.6 x        1.0 x      0.8 x       1.7 x      0.4 x
    LTM Operating Cash Flow / EBITDA           6.5 x             4.5 x         11.3 x        8.2 x      8.6 x      11.3 x      4.5 x
    LTM Operating Income / EBIT                9.5 x             9.1 x         18.4 x       13.5 x     14.0 x      19.1 x      8.9 x
                                                                                                                                    
  Indicated Dividend Yield                    0.5%              1.2%           0.7%         0.4%       0.4%        1.2%       0.0%  
                                                                                                                                    
OTHER INFORMATION:                                                                                                                  
                                                                                                                                    
  Net Debt / Net Book Capitalization         61.9%             32.6%          61.3%        43.3%      45.4%       61.9%     10.3%   
  Net Debt / Net Market Capitalization       55.3%             29.3%          36.2%        30.3%      29.3%       55.3%      4.8%   
                                                                                                                                    
  Payout Ratio (Using LTM EPS)                6.2%             26.9%          13.2%         7.3%       5.6%       26.9%      0.0%   
                                                                                                                                    
  EBITDA / Interest Expense                   2.65 x            7.33 x         8.39 x       6.08 x     5.72 x     10.72 x    2.65 x 
  Cash Flow From Ops. / Net Debt             17.5%             49.8%          19.4%        53.2%      32.0%      206.0%     16.3%   
  Cash Flow From Ops. / Interest Exp.         1.66 x            4.78 x         6.66 x       4.68 x     4.29 x      9.16 x    1.66 x 
                                                                                                                                    
  Net Working Capital / Total Sales           1.7%            -11.9%          -0.4%        -0.5%       0.4%        3.4%    -11.9%   
  Capital Expenditures / Total Sales          7.9%              6.5%          10.3%         8.0%       6.7%       18.5%      1.8%   
                                                                                                                                    
  % G&A/Total Sales                           2.7%              5.6%           3.0%         3.2%       3.3%        5.6%      1.1%   
  % O&M/Total Sales                             NA                NA           7.4%         4.1%       3.9%        7.4%      1.8%   
  % (G&Aand O&M)/Total Sales                    NA                NA          10.4%         7.0%       6.7%       10.4%      3.5%   
                                                                                                                                    
  % G&A/Gross Margin                         13.6%             26.4%          12.0%        17.6%      13.4%       27.7%     12.0%   
  % O&M/Gross Margin                            NA                NA          29.3%        23.0%      25.3%       29.3%     14.2%   
  % (G&Aand O&M)/Gross Margin                   NA                NA          41.4%        39.7%      41.6%       49.4%     27.3%   
</TABLE>
<PAGE>   34
DILLON, READ & CO. INC.                                                 12/09/93

  SUMMARY VALUATION ANALYSIS OF SELECTED NATURAL GAS GATHERING AND PROCESSING
                                   COMPANIES
                                                                          PAGE 3

<TABLE>
<CAPTION>
                                       VALERO        AMERICAN    AQUILA GAS        ASSOCIATED                                 
                                   NATURAL GAS(M)  OIL & GAS(G)  PIPELINE(L)     NATURAL GAS(H)  TEJAS GAS(I)   TEJAS POWER(G) 
                                   -------------   ------------  -----------     --------------  ------------   --------------
<S>                                  <C>           <C>            <C>            <C>              <C>             <C>          
OPERATING INFORMATION : (r)                                                                                                   
                                                                                                                              
  Areas of Operations                  Texas         West &       S TX, W TX,      TX, OK, CO,    S. TX, E. TX,     TX  & LA  
                                                   South Texas        OK           LA, KS, AL      LA, WV, OK     Gulf Coast  

  Miles of Pipeline                    7,200             5,935         2,152            5,817            5,200            NA  
  Number of Gas Plants                    10                 9             4     12(+4 fract.)     8(+2 treat.)

  Average Daily Throughput (Bcf/d)     1.933             0.859         0.313            0.929            3.157         0.560  
  Average Daily Capacity (Bcf/d)          NA             2.000         0.643               NA               NA         0.750  
  Daily NGL Production (mgal/d)      2,409.8                NA          33.0 (s)        869.0 (t)        223.0            NA  
  Daily NGL Sales (mgal/d)           3,943.9             394.0            NA               NA               NA            NA  

  Breakdown of Throughput                                                                                                     
    Sales                               40.6%             65.0%         64.0%              NA             35.0%         42.0% 
    Transmission                        59.4%             35.0%         36.0%              NA             65.0%         58.0% 
    Other                                0.0%              0.0%          0.0%              NA              0.0%          0.0% 

  Revenue Breakdown By %                                                                                                      
    Sales                               57.0%             84.0%         67.0%              NA               NA          86.0% 
    Transmission                         4.5%              2.0%          0.0%              NA               NA          11.7% 
    NGL Processing                      38.5%             13.0%         33.0%              NA               NA           0.0% 

  Breakdown of Gross Profits                                                                                                  
    Sales                               36.0%               NA            NA               NA               NA            NA  
    Transmission                         0.0%               NA            NA               NA               NA            NA  
    NGL Processing                      64.0%               NA            NA             32.5%(u)           NA            NA  
</TABLE>

<TABLE>
<CAPTION>
                                          TRIDENT NGL          USX -      WESTERN GAS  
                                       HOLDING, INC.(N)   DELHI GROUP(J)  RESOURCES(K) 
                                       ----------------   --------------  ------------ 
<S>                                     <C>                <C>                 <C>     
OPERATING INFORMATION : (r)                          
                                                     
  Areas of Operations                        TX, LA, 
                                             OK, KS 

  Miles of Pipeline                            8,000               8,379         NA       
  Number of Gas Plants                  32(+3 fract.)      21(11 partial)                 

  Average Daily Throughput (Bcf/d)                NA               0.856         NA       
  Average Daily Capacity (Bcf/d)                  NA                  NA         NA       
  Daily NGL Production (mgal/d)              2,511.0                  NA         NA       
  Daily NGL Sales (mgal/d)                   3,684.0               714.2         NA       

  Breakdown of Throughput                                                                 
    Sales                                       62.0%               63.8%        NA       
    Transmission                                38.0%               33.0%        NA       
    Other                                        0.0%                3.2%        NA       

  Revenue Breakdown By %                                                                  
    Sales                                       49.0%               81.4%      55.0%      
    Transmission                                 3.0%                3.2%       3.0%      
    NGL Processing                              48.0%               15.4%      42.0%      

  Breakdown of Gross Profits                                                              
    Sales                                       16.0%               70.2%        NA       
    Transmission                                 2.0%               10.8%        NA       
    NGL Processing                              82.0%               19.0%        NA       
</TABLE>

<TABLE>
<CAPTION>
                                                            COMPARATIVE ANALYSIS (P)                                    
                                       ----------------------------------------------------------------
                                              MEAN            MEDIAN          HIGH            LOW                              
                                       ----------------   --------------  ------------   --------------  
<S>                                        <C>                 <C>           <C>              <C>          
OPERATING INFORMATION : (r)                                                            
                                                                                       
  Areas of Operations                                                                  
                                                                                       
  Miles of Pipeline                          5,914             5,876           8,379          2,152 
  Number of Gas Plants                                                                              
                                                                                       
  Average Daily Throughput (Bcf/d)           1.112             0.858           3.157          0.313 
  Average Daily Capacity (Bcf/d)             1.131             0.697           2.000          0.643 
  Daily NGL Production (mgal/d)              909.0             546.0         2,511.0           33.0 
  Daily NGL Sales (mgal/d)                 1,597.4             714.2         3,684.0          394.0 
                                                                                       
  Breakdown of Throughput                                                                           
    Sales                                     55.3%             62.9%           65.0%          35.0%
    Transmission                              44.2%             37.0%           65.0%          33.0%
    Other                                      0.5%              0.0%            3.2%           0.0%
                                                                                       
  Revenue Breakdown By %                                                                            
    Sales                                     70.4%             67.0%           86.0%          49.0%
    Transmission                               3.8%              3.0%           11.7%           0.0%
    NGL Processing                            25.2%             15.4%           48.0%           0.0%
                                                                                       
  Breakdown of Gross Profits                                                                        
    Sales                                     43.1%              0.0%           70.2%          16.0%
    Transmission                               6.4%              0.0%           10.8%           2.0%
    NGL Processing                            44.5%             32.5%           82.0%          19.0%
</TABLE>                                                                       
                                                                         




<PAGE>   35
Dillon, Read & Co. Inc.                                                 12/09/93

  Summary Valuation Analysis of Selected Natural Gas 
         Gathering and Process Companies
                                                                          Page 4

<TABLE>  
<CAPTION>
                                              Valero           American        Aquila Gas     Associated    
                                          Natural Gas (m)    Oil & Gas (g)    Pipeline(l)    Natural Gas(h)    
                                          ---------------    -------------    -----------    ---------------
<S>                                              <C>               <C>           <C>              <C>      
Historical Operating Trends:                                                                 
                                                                                             
  Revenue Growth From Prior Periods                                                          
    FY 1991 vs. FY 1990                             4.8%           -13.7%         489.2%           59.7%  
    FY 1992 vs. FY 1991                             4.6%            13.2%         189.9%           47.2%  
    LTM vs. FY 1992                                11.5%            23.3%          23.5%           41.4%  
    LTM vs. FY 1990                                22.3%            20.4%        2009.1%          232.6%  
                                                                    
  EBITDA Growth From Prior Periods                                  
    FY 1991 vs. FY 1990                            -3.0%            29.8%         826.0%           41.0%  
    FY 1992 vs. FY 1991                           -10.7%            16.0%         172.2%           32.3%  
    LTM vs. FY 1992                               -16.3%           -16.9%          15.6%           23.9%  
    LTM vs. FY 1990                               -27.5%            25.1%        2814.2%          130.9%  
                                                                    
  EBIT Growth From Prior Periods                                    
    FY 1991 vs. FY 1990                            -5.1%            34.7%        1010.9%           30.8%  
    FY 1992 vs. FY 1991                           -10.0%             7.9%         178.6%           38.9%  
    LTM vs. FY 1992                               -29.2%           -31.9%          18.8%           40.5%  
    LTM vs. FY 1990                               -39.5%            -1.0%        3576.4%          155.4%  
                                                                    
  Net Income Growth From Prior Periods                              
    FY 1991 vs. FY 1990                           -27.0%             3.1%         180.0%           38.1%  
    FY 1992 vs. FY 1991                           -32.5%            22.5%          55.9%           15.1%  
    LTM vs. FY 1992                              -104.3%           -37.2%          33.9%           67.5%  
    LTM vs. FY 1990                              -102.1%           -20.7%         484.4%          166.3%  
                                                                    
  CFFO Growth From Prior Periods                                    
    FY 1991 vs. FY 1990                           -14.7%           -14.0%         318.6%           37.7%  
    FY 1992 vs. FY 1991                           -20.7%             8.8%          95.6%           24.1%  
    LTM vs. FY 1992                               -34.2%             5.3%          10.1%           23.6%  
    LTM vs. FY 1990                               -55.1%            -1.5%         801.0%          111.1%  
</TABLE> 

<TABLE>
<CAPTION> 
                                                                            Trident NGL         USX-         Western Gas
                                            Tejas Gas(l)   Tejas Power(g)  Holding, Inc. (n) Delhi Group (l) Resources (k)
                                            ------------   --------------  ----------------- --------------- -------------
<S>                                               <C>              <C>             <C>             <C>           <C> 
Historical Operating Trends:            
                                                                                                     
  Revenue Growth From Prior Periods                                                         
    FY 1991 vs. FY 1990                            79.8%            23.0%            NA             4.4%          40.1%  
    FY 1992 vs. FY 1991                            15.4%            27.5%          85.9%            8.2%          67.5%  
    LTM vs. FY 1992                                88.3%            33.1%           1.6%           15.4%          36.0%  
    LTM vs. FY 1990                               290.5%           108.7%            NA            30.4%         219.3%  
                                                                                    
  EBITDA Growth From Prior Periods                                                         
    FY 1991 vs. FY 1990                            45.1%           -25.8%            NA            10.5%          53.5%  
    FY 1992 vs. FY 1991                             0.6%           100.5%          61.6%            4.4%          48.3%  
    LTM vs. FY 1992                                81.6%             5.5%           4.9%            3.7%          23.9%  
    LTM vs. FY 1990                               164.9%            57.1%            NA            19.7%         182.1%  
                                                                                           
  EBIT Growth From Prior Periods                                                           
    FY 1991 vs. FY 1990                            38.5%           -69.7%            NA            23.5%          42.3%  
    FY 1992 vs. FY 1991                             0.2%           313.6%          47.6%            5.2%          50.4%  
    LTM vs. FY 1992                                95.9%            29.0%           5.7%           13.8%           5.4%  
    LTM vs. FY 1990                               171.9%            61.6%            NA            47.8%         125.7%  
                                                                                           
  Net Income Growth From Prior Periods                                                     
    FY 1991 vs. FY 1990                           -19.3%          -169.5%            NA           -52.6%          19.2%  
    FY 1992 vs. FY 1991                            39.4%          -505.0%          31.1%          158.3%          90.4%  
    LTM vs. FY 1992                                91.7%            32.4%           9.8%          -44.1%          -2.4%  
    LTM vs. FY 1990                               115.7%           272.8%            NA           -31.6%         121.5%  
                                                                                           
  CFFO Growth From Prior Periods                                                           
    FY 1991 vs. FY 1990                            35.1%           -30.7%            NA            10.1%          34.3%  
    FY 1992 vs. FY 1991                             2.7%           147.8%          84.8%            3.6%          47.6%  
    LTM vs. FY 1992                                73.2%             7.6%           0.2%          -14.9%          41.7%  
    LTM vs. FY 1990                               140.2%            84.6%            NA            -3.0%         181.0%  
</TABLE>
                                       
<TABLE>   
<CAPTION>                              
                                                                Comparative Analysis (p)
                                                    -----------------------------------------------
                                                    Mean         Median          High          Low
                                                    ----         -----           ----          ----
<S>                                                <C>           <C>           <C>            <C>
Historical Operating Trends:                                                              
                                                                                          
  Revenue Growth From Prior Periods                                                       
    FY 1991 vs. FY 1990                             97.5%         41.4%         489.2%        -13.7%
    FY 1992 vs. FY 1991                             56.9%         27.5%         189.9%          8.2%
    LTM vs. FY 1992                                 32.8%         23.5%          88.3%          1.6%
    LTM vs. FY 1990                                415.9%        170.7%        2009.1%         20.4%
                                                                                          
  EBITDA Growth From Prior Periods                                                        
    FY 1991 vs. FY 1990                            140.0%         35.4%         826.0%        -25.8%
    FY 1992 vs. FY 1991                             54.5%         32.3%         172.2%          0.6%
    LTM vs. FY 1992                                 17.8%          5.5%          81.6%        -16.9%
    LTM vs. FY 1990                                484.9%         94.0%        2814.2%         19.7%
                                                                                          
  EBIT Growth From Prior Periods                                                          
    FY 1991 vs. FY 1990                            158.7%         32.8%        1010.9%        -69.7%
    FY 1992 vs. FY 1991                             80.3%         38.9%         313.6%          0.2%
    LTM vs. FY 1992                                 22.2%         18.8%          95.9%        -31.9%
    LTM vs. FY 1990                                591.1%        108.5%        3576.4%         -1.0%
                                                                                          
  Net Income Growth From Prior Periods                                                    
    FY 1991 vs. FY 1990                             -0.1%         -8.1%         180.0%       -169.5%
    FY 1992 vs. FY 1991                            -11.5%         31.1%         158.3%       -505.0%
    LTM vs. FY 1992                                 18.9%         32.4%          91.7%        -44.1%
    LTM vs. FY 1990                                158.3%        141.0%         484.4%        -31.6%
                                                                                          
  CFFO Growth From Prior Periods                                                          
    FY 1991 vs. FY 1990                             55.8%         22.6%         318.6%        -30.7%
    FY 1992 vs. FY 1991                             51.9%         24.1%         147.8%          2.7%
    LTM vs. FY 1992                                 18.3%          7.6%          73.2%        -14.9%
    LTM vs. FY 1990                                187.6%         97.9%         801.0%         -3.0%
</TABLE>                                                                       
                                                                        
<PAGE>   36
DILLON, READ & CO. INC.                                                 12/09/93

  SUMMARY VALUATION ANALYSIS OF SELECTED NATURAL GAS GATHERING AND PROCESSING
                                   COMPANIES
                                                                          Page 5





FOOTNOTES TO ANALYSIS:

(a) Defined as equity market value plus long-term and short-term debt, capital
    leases, minority interests and redeemable preferred stock, less cash & cash
    equivalents and long-term investments.
(b) Defined as operating income plus depreciation, depletion and amortization.
(c) Defined as income from operations before other (non-operating) income,
    extraordinary items, interest charges, minority interests and income taxes.
(d) Net income to common shareholders.  Excludes extraordinary items.
(e) Before changes in working capital.
(f) Median EPS estimates as reported in the Institutional Brokers Estimate 
    System report, as of 11/18/93.
(g) Balance sheet is not proforma asset sales/purchased subsequent to 9/30/93.
    Amounts not disclosed in 8K.
(h) Balance sheet is proforma acquisition of four pipeline systems from 
    Endevco, Inc. Purchased with $20.5 MM cash (debt) and 0.264 MM common 
    shares. Transaction closed 11/03/93. Balance sheet is also proforma Dean 
    Pipline acquisition for $22.5 MM cash. Transaction closed 11/8/93.
(i) Proforma the 11/02/93 common stock and 5.25% Convertible Preferred stock
    Offerings. Also Proforma EGSI Acquisition. Financials LTM 6/30/93. Balance
    sheet as of date of final prospectus.
(j) Balance sheet not proforma 10/05/93 acquisition of Tonkawa Gas Processing
    Company (30 MM/D processing capacity)
(k) Proforma acquisitions of Mountain Gas Resources ($164.6 MM) and Black Lake
    Processing and related reserves ($134 MM). Both transactions were effective
    1/01/93, therefore 9/30/93 10Q was proforma. Form 8K was used for 1992 
    "stub" period for LTM data.
(l) Financials based on IPO prospectus dated October 26, 1993. Financials LTM
    June 30, 1993.
(m) Valero Natural Gas Partnership L.P. is tax affected at 35% to make 
    comparative analysis relevant. Taxes are assumed to be current (i.e. 
    Deferred = 0). G&A expense based on VLO provided schedule. 
    VLP units outstanding include effective GP units of 0.5658 million units. 
    VLP G&A and O&M analysis adjusts LTM 9/30/93 O&M expenses by $7.7 MM for
    non-recurring O&M expenses ($4.4 MM early retirement, $2.0 MM unusual bad 
    debt expense & $1.3 MM incremental product transport expenses)
(n) Trident Financial data obtained from proforma prospectus dated November 10,
    1993. LTM financial data is for the period ended 6/30/93.
(o) Cash flow per share estimates obtained from Dillon Read, except USX-Delhi
    which is based on Morgan Stanley report dated 8/16/93. VLP based on
    Company's plan.
(p) Comparative analysis does not include Valero Natural Gas Partners in its
    computations.
(q) Number of common shares outstanding and book equity account adjusted for
    conversion of preferred issue into 4.2 MM additional common shares.
(r) Based on fiscal year 1992 results.
(s) Gross NGLs produced includes third party processing.  Net figures are not
    available.
(t) Total NGLs handled.  Actual net production and sales information are not
    available.
(u) Obtained from NGA investor relations department.





<PAGE>   37
 
Dillon, Read & Co. Inc.                                              12/09/93
        
  Summary Valuation Analysis of Selected Pipeline Master Limited Partnerships

Draft - Subject to Change                                              Page 1
      

<TABLE>                                                                        
<CAPTION>                                                                      
                                      Valero       Buckeye    Enron      Kaneb         Lakehead    Santa Fe     TEPPCO 
                                    Natural Gas   Partners   Liquids   Pipe Line(a)   Pipe Line    Pipeline    Partners
                                    -----------   --------   -------   ------------   ---------    --------    --------
<S>                                   <C>         <C>        <C>        <C>           <C>          <C>         <C>     
MARKET DATA:                                                                                                           
  Ticker Symbol                            VLP         BPL        ENP        KPP           LHP          SFL         TP 
                                                                                                                       
  Fiscal Year End                     12/31/92    12/31/92   12/31/92   12/31/92      12/31/92     12/31/92    12/31/92
  Latest Quarter Reported              9/30/93     9/30/93    9/30/93    9/30/93       9/30/93      9/30/93     9/30/93
                                                                                                                       
  Preferred Unit Price                                                                                                 
    as of 12/08/93                    $ 11.000    $ 38.250   $ 29.625   $ 27.000      $ 32.375     $ 38.500    $ 27.875
  Total Units Outstanding                 18.5        12.0        6.5       16.1          21.8         19.1        14.5
                                                                                                                       
  Public Units As %                                                                                                    
    of Total Captial                      49.9%       98.0%      85.1%      44.2%         80.4%        56.3%       89.6% 
  GP-Held Units / DPIs As                                                                                                
    % of Total Captial                    47.2%        0.0%      12.9%      53.8%         17.6%        41.7%        8.4% 
  General Partners' Interest                                                                                             
    in Partnership                         3.0%        2.0%       2.0%       2.0%          2.0%         2.0%        2.0% 
                                                                                                                       
  52-Week High Price                  $ 11.375    $ 41.625   $ 32.750   $ 28.125      $ 33.250     $ 40.750    $ 29.500
  52-Week Low Price                   $  7.375    $ 28.500   $ 24.875   $ 20.750      $ 23.750     $ 33.250    $ 20.500
    Current Price As %                                                                                                 
      Of 52-Week High                     96.7%       91.9%      90.5%      96.0%         97.4%        94.5%       94.5%
                                                                                                                       
  Total Equity Market Value                                                                                            
    of Partnership(b)                 $  209.6    $  468.4   $  171.3   $  357.1      $  720.3     $  752.2    $  377.6
  Net Market Capitalization(c)           837.2       687.9      270.0      388.2         954.3      1,064.4       697.6
                                                                                                                       
FINANCIAL PERFORMANCE DATA:                                                                                            
  LTM Total Operating Revenues        $1,335.2    $  172.1   $   49.3   $   62.0      $  237.2     $  215.4    $  176.5
  LTM Operating Cash Flow(d)             115.9        72.4       22.8       33.2         108.9        121.2        91.7
  LTM Operating Income(e)                 84.0        61.4       15.9       27.4          80.2        102.3        68.1
  LTM Net Income Before                                                                                                
    GP Interest(f)                        18.8        35.4        8.3       25.1          53.0         41.5        35.6
  LTM Cash Flow From Operations(g)        51.3        45.8       17.8       31.1          92.7         82.0        58.7
                                                                                                                       
  Earnings Per Share                                                                                                   
    Latest Twelve Month EPS           $   0.94    $   2.90   $   1.46   $   2.20      $   2.37     $   4.32    $   2.27
    1993 Estimate (h)                     1.10        3.46       1.55       1.82          2.40         3.45        2.25
    1994 Estimate (h)                     1.30        3.55       1.78         NA          2.45         3.58        2.30
                                                                                                                       
  Indicated Annual Distribution                                                                                        
    Per Unit                          $   0.50    $   2.60   $   2.20   $   2.20      $   2.36     $   2.80    $   2.28
                                                                                                                       
BALANCE SHEET DATA:                                                                                                    
  Cash and Cash Equivalent                20.6        12.4       11.1        5.5          89.7         44.0        44.1
  Net Utility Property,                                                                                                
    Plant and Equipment                  741.5       497.6      228.1      132.2         615.0        621.6       545.9
  Short-Term Debt (Includes                                                                                            
    Current L-T Debt)                     37.9        16.4        1.5        7.0           3.1          0.0         5.0
  Long-Term Debt                         610.3       213.0      138.5       28.5         320.0        355.0       356.5
  Total Preferred Stock                    0.0         0.0        0.0        0.0           0.0          0.0         0.0
  Book Value of Partners Capital         164.7       232.4      130.8      100.1         367.0        262.8       250.8
  Net Book Capitalization(i)             792.2       451.9      229.5      131.1         601.0        574.9       570.7
</TABLE>                                                                 

<TABLE>                                                                    
<CAPTION>                                                           
                                                 Comparable Analysis           
                                                 -------------------           
                                          Mean     Median     High       Low   
                                          ----     ------     ----       ---   
<S>                                      <C>       <C>        <C>        <C>   
MARKET DATA:                                                                   
  Ticker Symbol                                                                
                                                                               
  Fiscal Year End                                                              
  Latest Quarter Reported                                                      
                                                                               
  Preferred Unit Price                                                         
    as of 12/08/93                                                             
  Total Units Outstanding                                                      
                                                                               
  Public Units As %                                                            
    of Total Captial                                                           
  GP-Held Units / DPIs As                                                      
    % of Total Captial                                                         
  General Partners' Interest                                                   
    in Partnership                                                             
                                                                               
  52-Week High Price                                                           
  52-Week Low Price                                                            
    Current Price As %                      94.1%     94.5%       97.4%      90.5%           
      Of 52-Week High                                                          
                                                                               
  Total Equity Market Value              $ 474.5   $ 423.0    $  752.2   $ 171.3             
    of Partnership(b)                      677.0     692.7     1,064.4     270.0            
  Net Market Capitalization(c)                                                 
                                                                               
FINANCIAL PERFORMANCE DATA:                                                    
  LTM Total Operating Revenues                                                 
  LTM Operating Cash Flow(d)                                                   
  LTM Operating Income(e)                                                      
  LTM Net Income Before                                                        
    GP Interest(f)                                                             
  LTM Cash Flow From Operations(g)                                             
                                                                               
  Earnings Per Share                                                           
    Latest Twelve Month EPS                                                    
    1993 Estimate (h)                                                          
    1994 Estimate (h)                                                          
                                                                               
  Indicated Annual Distribution                                                
    Per Unit                                                                   
                                                                               
BALANCE SHEET DATA:                                                            
  Cash and Cash Equivalent                                                     
  Net Utility Property,                                                        
    Plant and Equipment                                                        
  Short-Term Debt (Includes                                                    
    Current LT Debt)                                                           
  Long-Term Debt                                                               
  Total Preferred Stock                                                        
  Book Value of Partners Capital                                               
  Net Book Capitalization(i)                                                   
</TABLE>                                                                       
                                                                               
- --------------------------------
(a) Kaneb's results are not adjusted for its March, 1993 acquisition of Support
    Terminal Services, Inc. due to lack of public disclosure regarding financial
    results.
(b) Equity market value of total partnership units (excluding DPIs / DPUs),
    adjusted for general partner's interest.  Assumes price of company-held
    units equals price of publicly-traded units.
(c) Net market capitalization is defined as the equity market value of partners'
    interests plus total debt, preferred stock and minority interests, less cash
    & equivalents, discontinues operations and L-T investments.
(d) Operating cash flow is defined as earnings before interest, taxes,
    depreciation and amortization (EBITDA).  Excludes extraordinary items.
(e) Operating income is defined as earnings from operations before interest and
    taxes (EBIT).  Excludes extraordinary items.
(f) Net income before allocation of minority and / or general partner interests.
    Also, amount is shown before changes in accounting methods and any
    extraordinary credits or charges.
(g) Cash flow from operations is defined as cash flow from operations before
    changes in working capital (CFFO).
(h) Median earnings estimates of Wall Street research analysts as reported in 
    the Institutional Brokers Estimate System report dated 11/18/93.
(i) Net book capitalization defined as book value of partners capital plus total
    debt, preferred stock and minority interests, less cash & equivalents,
    discontinued operations and L-T investments.

<PAGE>   38
DILLON, READ & CO. INC.                                                 12/09/93

  SUMMARY VALUATION ANALYSIS OF SELECTED PIPELINE MASTER LIMITED PARTNERSHIPS

DRAFT - SUBJECT TO CHANGE                                                PAGE 2 


<TABLE>
<CAPTION>
                                                    Valero        Buckeye    Enron       Kaneb         Lakehead  Santa Fe   TEPPCO  
                                                  Natural Gas    Partners   Liquids   Pipe Line (a)   Pipe Line  Pipeline  Partners 
                                                  -----------    --------   -------   -------------   ---------  --------  --------
<S>                                                 <C>           <C>        <C>       <C>             <C>        <C>       <C>
VALUATION INFORMATION:                            
                                                  
  Equity Market Value of Limited
  Partners' Capital to:                            
                                                 
         LTM Net Income to All Partners             10.8 x        12.9 x     20.1 x      7.8 x         10.9 x     10.2 x    10.4 x
         LTM Cash Flow Flow from Operations          4.0 x        10.0 x      9.4 x      6.3 x          6.2 x      5.2 x     6.3 x
         Book Value of Partner's Capital             1.2 x         2.0 x      1.3 x      2.0 x          1.6 x      1.6 x     1.5 x

         1993E Net Income                           10.0 x        11.1 x     19.1 x     14.8 x         13.5 x     11.2 x    12.4 x
         1994E Net Income                            8.5 x        10.8 x     16.6 x       NA x         13.2 x     10.8 x    12.1 x
                                                                                                                                  
  Net Market                                                                                                                      
  Capitalization to:
                                                                                                                                  
         LTM Total Operations                        0.6 x         4.0 x      5.5 x      6.3 x          4.0 x      4.9 x     4.0 x
         LTM Operating Cash Flow / EBITDA            7.2 x         9.5 x     11.8 x     11.7 x          8.8 x      8.8 x     7.6 x
         LTM Operating Income / EBIT                10.0 x        11.2 x     17.0 x     14.2 x         11.9 x     10.4 x    10.2 x
                                                                                                                                  
  Indicated Dividend Yield                           4.5%          6.8%       7.4%       8.1%           7.3%       7.3%      8.2%   
                                                                                                                                   
OTHER INFORMATION:                                                                                                                
                                                                                                                                  
  Net Debt / Net Book Capitalization (b)            79.2%         48.6%      43.0%      23.6%          38.9%      54.3%     56.1%   
  Net Debt / Net Market Capitalization (b)          75.0%         31.9%      36.5%       8.0%          24.5%      29.3%     45.9%   
                                                                                                                                  
  Payout Ratio (Using LTM EPS)                      53.2%         89.7%     150.8%     100.0%          99.7%      64.9%    100.3%   
                                                                                                                                  
  EBITDA / Interest Expense                          1.7 x        2.76 x     2.37 x    10.58 x         3.59 x     3.27 x    2.47 x  
  Cash Flow From Operations / Net Debt (b)           8.2%         20.9%      18.0%     100.2%          39.6%      26.3%     18.3%   
  Cash Flow From Operations / Interest Expense       0.8 x        1.75 x     1.85 x     9.89 x         3.06 x     2.21 x    1.58 x  
                                                                                                                                  
  Total Capital Expenditures / Net P.P.& E.          4.6%          2.5%       3.3%       4.8%           5.0%       3.9%      3.6%   
  Maintenance Capital Exp. / Net P.P.& E.            4.6%          2.5%       1.2%       4.8%           1.9%       1.1%      1.7%   
  D.D.&A. / Net P.P.&E.                              4.3%          2.2%       3.0%       4.4%           4.7%       3.0%      4.3%   
                                                                                                                                  
  Ownership Profile                                                                                                               
  Publicly-Held Preferred / Common Units            49.9%         98.0%      85.1%      44.2%          80.4%      56.3%     89.6%   
  Company-Held Preferred / Common Units             47.2%          0.0%       0.0%      34.5%          17.6%      41.7%      0.0%   
  Company-Held DPIs/DPUs                             0.0%          0.0%      12.9%      19.3%           0.0%       0.0%      8.4%   
  General Partnership Interests                      3.0%          2.0%       2.0%       2.0%           2.0%       2.0%      2.0%   
                                                                                                                                  
  Partnership Distribution                                                                                                        
  Coverage Ratios                                                                                                                 
  Free Operating Cash Flow Over: (c)                                                                                              
              Total Distributions (d)                8.6 x         1.9 x      1.4 x      0.7 x          1.9 x      2.1 x     2.4 x  
              Preferred Distributions Only           8.9 x         1.9 x      1.6 x      1.7 x          2.3 x      3.7 x     2.7 x  
                                                                                                                                  
  Free Cash Flow From Operations Over: (e)                                                                                        
              Total Distributions (d)                1.8 x         1.0 x      1.0 x      0.7 x          1.5 x      1.4 x     1.5 x  
              Preferred Distributions Only           1.9 x         1.1 x      1.2 x      1.6 x          1.9 x      2.5 x     1.6 x  
                                                                                                                  
</TABLE>
<TABLE>
<CAPTION>
                                                                 Comparable Analysis          
                                                     Mean         Median      High       Low  
                                                     ----         ------      ----       ---
<S>                                                 <C>          <C>         <C>       <C>
VALUATION INFORMATION:                                
                                                      
  Equity Market Value of Limited
  Partners' Capital to:                                 
                                                      
         LTM Net Income to All Partners             12.1 x       10.7 x      20.1 x     7.8 x  
         LTM Cash Flow Flow from Operations          7.2 x        6.3 x      10.0 x     5.2 x  
         Book Value of Partner's Capital             1.6 x        1.6 x       2.0 x     1.3 x  
                                                                                      
         1993E Net Income                           13.7 x       12.9 x      19.1 x    11.1 x  
         1994E Net Income                           12.7 x       12.1 x      16.6 x    10.8 x  
                                                                                      
  Net Market                                                                          
  Capitalization to:                                                                    
                                                                                      
         LTM Total Operations                        4.8 x        4.0 x       6.3 x     4.0 x  
         LTM Operating Cash Flow / EBITDA            9.7 x        9.1 x      11.8 x     7.6 x  
         LTM Operating Income / EBIT                12.5 x       11.5 x      17.0 x    10.2 x  
                                                                                      
  Indicated Dividend Yield                           7.5%         7.4%        8.2%      6.8%   
                                                                                      
OTHER INFORMATION:                                                                    
                                                                                      
  Net Debt / Net Book Capitalization (b)            44.1%        45.8%       56.1%     23.6%   
  Net Debt / Net Market Capitalization (b)          29.4%        30.6%       45.9%      8.0%   
                                                                                      
  Payout Ratio  (Using LTM EPS)                    100.9%        99.9%      150.8%     64.9%   
                                                                                      
  EBITDA / Interest Expense                         4.17 x       3.02 x     10.58 x    2.37 x  
  Cash Flow From Operations / Net Debt (b)          37.2%        23.6%      100.2%     18.0%   
  Cash Flow From Operations / Interest Expense      3.39 x       2.03 x      9.89 x    1.58 x  
                                                                                      
  Total Capital Expenditures / Net P.P.& E.          3.9%         3.7%        5.0%      2.5%   
  Maintenance Capital Exp. / Net P.P.& E.            2.2%         1.8%        4.8%      1.1%   
  D.D.&A. / Net P.P.&E.                              3.6%         3.7%        4.7%      2.2%   
                                                                                      
  Ownership Profile                                                                   
  Publicly-Held Preferred / Common Units            75.6%        82.8%       98.0%     44.2%   
  Company-Held Preferred / Common Units             15.6%         8.8%       41.7%      0.0%   
  Company-Held DPIs/DPUs                             6.8%         4.2%       19.3%      0.0%   
  General Partnership Interests                      2.0%         2.0%        2.0%      2.0%   
                                                                                      
  Partnership Distribution                                                            
  Coverage Ratios                                                                     
  Free Operating Cash Flow Over: (c)                                                  
              Total Distributions (d)                1.7 x        1.9 x       2.4 x     0.7 x  
              Preferred Distributions Only           2.3 x        2.3 x       3.7 x     1.6 x  
                                                                                      
  Free Cash Flow From Operations Over: (e)                                            
              Total Distribution (d)                 1.2 x        1.4 x       1.5 x     0.7 x  
              Preferred Distributions Only           1.6 x        1.6 x       2.5 x     1.1 x  
</TABLE>                 
                                  
- -------------------------
(a) Kaneb's results are not adjusted for its March, 1993 acquisition of Support
    Terminal Services, Inc. due to lack of public disclosure regarding 
    financial results.
(b) Net debt is defined as total debt, plus redeemable preferred stock and
    minority interests, less cash & equivalents, long-term investments and 
    discontinued operations
(c) Free operating cash flow is defined as operating cash flow (EBITDA) less
    maintenance capital expenditures.
(d) Total distributions include distributions to common / deferred units at same
    rate as preferred units, inclusive of the general partner's distribution.
(e) Free cash flow from operations is defined as cash flow from operations 
    (CFFO) less maintenance capital expenditures.
<PAGE>   39
DILLON, READ & CO. INC.                                        DECEMBER 10, 1993
- --------------------------------------------------------------------------------






                   SELECTED COMPARABLE COMPANY ACQUISITIONS








- --------------------------------------------------------------------------------

VALERO NATURAL GAS COMPANY
<PAGE>   40
Dillon, Read & Co. Inc.                                                 12/08/93

                       Valero Natural Gas Partners, L.P.
 Summary of Selected Mergers and Acquisitions in Gas Gathering and Processing
                                   Industry

<TABLE>
<CAPTION>                                                                                                         
                                                                                                               Latest Annual Results
                                                                                                                       ($mm)
                                                                             Value of              Value of    ---------------------
 Date        Acquiror / Target         Description of Transaction             Equity    Net Debt    Assets     Revenues       EBITDA
 ----        -----------------         --------------------------            --------   --------    -------    --------       ------
 <S>        <C>                        <C>                                     <C>        <C>       <C>        <C>            <C>
 10/11/93   Associated Natural Gas     Includes 264 miles of liquids            22.5       0.0       22.5        NA            NA 
              Dean Pipeline Co.          pipeline and 54 miles of supply                        
                                         laterals (21,000 b/d).                                 
                                                                                                
 10/05/93   USX - Delhi Group          Purchase of 30 mmcf/d cryogenic           3.0       0.0        3.0        NA            NA
              Pettus Gas                 plant in Bee County, TX.                                         
                                                                                                                 
                                                                                                                 
  9/27/93   Western Gas Resources      Purchase of gas plant and 68.9%         137.6       0.0      137.6       57.6           NA
              Black Lake Gas Plant       working interest in Black                                                
              (from NERCO)               Lake field.                                                                   
                                                                                                                 
  9/15/93   Tejas Gas Corporation      Substantially all of Exxon's TX         380.0       0.0      380.0      384.2          47.1
              Exxon Corp.                and LA intrastate gathering                            
                                         systems and West Clear Lake                            
                                         storage facility.                                      
                                                                                                                 
  9/15/93   Associated Natural Gas     Purchase of pipeline (547 miles          32.5       0.0       32.5        NA            NA  
              Endevco                    total) and Hattiesburg gas                              
                                         storage facility (300,000 mmbtu                        
                                         capacity).                                             
                                                                                                
  7/29/93   Patrick Petroleum Company  Purchase of ANP's stock for              28.0       0.0       28.0       11.7           5.5
              American National          $3.40 in cash and $2.60 in                             
              Petroleum Co.              stock                                                  
                                                                                                
  6/29/93   Western Gas Resources (a)  Former gathering assets of               77.3      13.8       91.1       98.0          11.0
              Mountain Gas               Presidio Oil                                           
              Resources                                                                         
                                                                                                
  3/17/93   El Paso Natural Gas (b)    Purchased remaining 50% interest         40.0      70.0      110.0       27.3           NA
              Mojave Pipeline            in company from Enron Corp.                                           
                                                                                                                 
                                                                                                                 
  12/1/92   Associated Natural Gas     Includes 15,000 mcf/d gas plant           NA        0.0        NA         NA            NA
              GPM Gas Corp.'s Osage      and approx. 900 miles of                               
              System                     pipeline connected to 300 wells                        
                                         in OK.                                                 
                                                                                                                 
  10/1/92   Associated Natural Gas     Includes 25,000 mcf/d gas plant and       NA        0.0        NA         NA            NA
              GPM Gas Corp.'s            approx. 1,000 miles of pipeline                                                          
              Glenpool System            connected to 525 wells in OK.                                
                                                                                                                 
   5/1/92   Associated Natural Gas     Peavine and West Edmond gas plants       15.9       0.0       15.9        NA            NA
              Finlay Energy, Inc.        and associated gathering systems                       
                                         in OK.                                                                
                                                                                                                 
   4/1/92   Associated Natural Gas     West Gutherie gas plant and associated    NA        0.0        NA         NA            NA
              Triumph Oklahoma LP        gathering system located in OK.                        
                                                                                                                 
   4/1/92   American Oil & Gas Corp.   Includes 1,056 miles of pipeline and     11.0      75.0       86.0       71.7           NA
              Maple Gas Corp.            and 10 gas plants.                                     
                                                                                                                 
 10/31/91   Associated Natural Gas     Includes gas plant and associated        17.7       0.0       17.7        NA            2.3
              Spindle Facility           gathering assets ($ shown is net                       
              (from Apache)              of sale of acquired oil and gas                                               
                                         properties for $16.5 mm)                                                
                                                                                                
  9/18/91   Western Gas Resources (c)  12 gas processing plants and 5,260      135.0       7.7      142.7      249.8          26.9
              Union Texas Petroleum      miles of gas gathering systems                         
                                         in TX, OK & LA.                                                       
                                                                                                                 
  7/26/91   Transok (Central & South-  1,400 miles of pipeline consisting      250.0       0.0      250.0        NA            NA
              west Corp.)                of                                                     
              TEX / CON                                                                                             
                                                                                                                 
  3/22/91   Associated Natural Gas     Purchased company with ops in OK,        43.0      38.0       81.0        NA           10.5
              Mega Natural Gas Corp.      TX, NM and KS.  Owns 1,000 miles of                   
                                         pipe and 166 cf/d of system                            
                                         throughput                                             
                                                                                                                 
     1/91   Western Gas Resources      65 mmcf/d edgewood gas plant in E.       36.0       0.0       36.0        NA            6.3
              Amoco Production Company   Texas. Also a 350 ton/d sulfer                    
                                         recovery unit                                                          
</TABLE>                                

<TABLE>
<CAPTION>                                                                         
                                                                                  Asset Value As Multiple of  
                                                                                  --------------------------  
 Date        Acquiror / Target          Description of Transaction                Revenues            EBITDA      
 ----        -----------------          --------------------------                --------            ------                 
 <S>        <C>                         <C>                                        <C>                 <C>      
 10/11/93   Associated Natural Gas      Includes 264 miles of liquids              NA  x               NA  x    
              Dean Pipeline Co.           pipeline and 54 miles of supply                                     
                                          laterals (21,000 b/d).                                              
                                                                                                              
 10/05/93   USX - Delhi Group           Purchase of 30 mmcf/d cryogenic            NA  x               NA  x    
              Pettus Gas                  plant in Bee County, TX.                                           
                                                                                                              
                                                                                                              
  9/27/93   Western Gas Resources       Purchase of gas plant and 68.9%            2.4 x               NA  x    
              Black Lake Gas Plant        working interest in Black                                           
              (from NERCO)                Lake field.                                                         
                                                                                                              
  9/15/93   Tejas Gas Corporation       Substantially all of Exxon's TX            1.0 x               8.1 x     
              Exxon Corp.                 and LA intrastate gathering                                         
                                          systems and West Clear Lake                                         
                                          storage facility.                                                   
                                                                                                              
  9/15/93   Associated Natural Gas      Purchase of pipeline (547 miles            NA  x               NA  x    
              Endevco                     total) and Hattiesburg gas                                           
                                          storage facility (300,000 mmbtu                                     
                                          capacity).                                                          
                                                                                                              
  7/29/93   Patrick Petroleum Company   Purchase of ANP's stock for                2.4 x               5.1 x     
              American National           $3.40 in cash and $2.60 in                                          
              Petroleum Co.               stock                                                               
                                                                                                              
  6/29/93   Western Gas Resources (a)   Former gathering assets of                 0.9 x               8.3 x    
              Mountain Gas                Presidio Oil                                                        
              Resources                                                                                       
                                                                                                              
  3/17/93   El Paso Natural Gas (b)     Purchased remaining 50% interest           4.0 x               NA  x     
              Mojave Pipeline             in company from Enron Corp.                                         
                                                                                                              
                                                                                                              
  12/1/92   Associated Natural Gas      Includes 15,000 mcf/d gas plant            NA  x               NA  x    
              GPM Gas Corp.'s Osage       and approx. 900 miles of                                          
              System                      pipeline connected to 300 wells                                     
                                          in OK.                                                              
                                                                                                              
  10/1/92   Associated Natural Gas      Includes 25,000 mcf/d gas plant and        NA  x               NA  x    
              GPM Gas Corp.'s             approx. 1,000 miles of pipeline                               
              Glenpool System             connected to 525 wells in OK.                              
                                                                                                              
   5/1/92   Associated Natural Gas      Peavine and West Edmond gas plants         NA  x               NA  x    
              Finlay Energy, Inc.         and associated gathering systems                                    
                                          in OK.                                                              
                                                                                                              
   4/1/92   Associated Natural Gas      West Gutherie gas plant and associated     NA  x               NA  x     
              Triumph Oklahoma LP         gathering system located in OK.                                     
                                                                                                              
   4/1/92   American Oil & Gas Corp.    Includes 1,056 miles of pipeline and       1.2 x               NA  x    
              Maple Gas Corp.             and 10 gas plants.                                                  
                                                                                                              
 10/31/91   Associated Natural Gas      Includes gas plant and associated          NA  x               7.7 x    
              Spindle Facility            gathering assets ($ shown is net                                    
              (from Apache)               of sale of acquired oil and gas                                     
                                          properties for $16.5 mm)                                            
                                                                                                              
  9/18/91   Western Gas Resources (c)   12 gas processing plants and 5,260         0.6 x               5.3 x  
              Union Texas Petroleum       miles of gas gathering systems                                      
                                          in TX, OK & LA.                                                     
                                                                                                              
  7/26/91   Transok (Central & South-   1,400 miles of pipeline consisting         NA  x               NA  x  
              west Corp.)                 of                                                                  
              TEX / CON                                                                                       
                                                                                                              
  3/22/91   Associated Natural Gas      Purchased company with ops in OK,          NA  x               7.7 x  
              Mega Natural Gas Corp.      TX, NM and KS.  Owns 1,000 miles of                                   
                                          pipe and 166 cf/d of system                                         
                                          throughput                                                          
                                                                                                              
     1/91   Western Gas Resources       65 mmcf/d edgewood gas plant in E.         NA  x               5.7 x  
              Amoco Production Company    Texas. Also a 350 ton/d sulfer                       
                                          recovery unit                          
</TABLE>

<PAGE>   41
Dillon, Read & Co. Inc.                                                 12/01/93

                       Valero Natural Gas Partners, L.P.
 Summary of Selected Mergers and Acquisitions in Gas Gathering and Processing
                                   Industry

<TABLE>
<CAPTION>                                                                                                    
                                                                                                             
                                                                                    Value of                   Value of    
   Date      Acquiror / Target             Description of Transaction                Equity       Net Debt      Assets     
   ----      -----------------             --------------------------                ------       --------      ------     
  <S>      <C>                        <C>                                             <C>         <C>            <C>        
  12/4/90  Tejas Gas Corporation      Unit purchases, gathers, transports and         175.0       (15.1)         159.9      
             Acadian Gas Group          markets natural gas along LA & TX gulf                                      
                                        coasts through 400 miles of pipe                                            
                                        (600 mmcf/d)                                                                
                                                                                                                    
  7/26/90  Western Gas Resources      Gathering assets in LA, AR & TX.  Incl.          24.6         0.4           25.0      
             Parker Drilling Company    75% of Giddings system of 475 miles of                                      
                                        pipe (65 mmcf/d).  Also gas treating bus.                               
                                                                                                                     
  5/24/90  UtiliCorp United Inc.      Company owns & operates 6 intrastate gas         65.0        160.0         225.0      
             Clajon Holdings LP         pipelline systems and 2 gas plants in                                       
                                        SE TX.                                                                      
                                                                                                                    
  1/24/89  American Oil & Gas Corp.   Incl. gathering and transmission ops:           120.6        (0.1)         120.5      
             Cabot Corporation          3,500 miles of pipeline in W. TX and                                        
                                        TX panhandle.                                                               
                                                                                                                    
  6/16/88  Tejas Gas Corporation      Gathers & transports gas in TX, OK, CO,         140.0        15.0          155.0      
             (Hamilton Oil)             WV and LA                                                                   
             Gulf Energy Dev. Corp.                                                                                 
             (Penn Cent.)                                                                                           
                                                                                                                    
  8/1/87   Enerfin Partners 1 LP      Includes 5 gas plants and 892 miles of           62.0         0.0           62.0      
             Farmland Industries        pipeline in West Texas and Wyoming.                                  
             (Gas Plant Div.)                                                                                
</TABLE>
<TABLE> 
<CAPTION>
                                                                                  Latest Annual Results          Asset Value As
                                                                                        ($mm)                     Multiple of
                                                                                  ---------------------        ------------------
   Date      Acquiror / Target             Description of Transaction             Revenues       EBITDA        Revenues    EBITDA
   ----      -----------------             --------------------------             --------       ------        --------    ------
  <S>      <C>                        <C>                                         <C>             <C>           <C>        <C>
  12/4/90  Tejas Gas Corporation      Unit purchases, gathers, transports and       NA            21.0          NA  x       7.6 x
             Acadian Gas Group          markets natural gas along LA & TX gulf                                                  
                                        coasts through 400 miles of pipe                                                        
                                        (600 mmcf/d)                                                                            
                                                                                                                                
  7/26/90  Western Gas Resources      Gathering assets in LA, AR & TX.  Incl.       NA             7.1          NA  x       3.5 x 
             Parker Drilling Company    75% of Giddings system of 475 miles of                                                  
                                        pipe (65 mmcf/d).  Also gas treating bus                                                
                                                                                                                                
  5/24/90  UtiliCorp United Inc.      Company owns & operates 6 intrastate gas      NA            32.6          NA  x       6.9 x 
             Clajon Holdings LP         pipelline systems and 2 gas plants in                                                   
                                        SE TX.                                                                                  
                                                                                                                                
  1/24/89  American Oil & Gas Corp.   Incl. gathering and transmission ops:         NA            10.8          NA  x      11.2 x 
             Cabot Corporation          3,500 miles of pipeline in W. TX and                                                    
                                        TX panhandle.                                                                           
                                                                                                                                
  6/16/88  Tejas Gas Corporation      Gathers & transports gas in TX, OK, CO,       NA            22.8          NA  x       6.8 x 
             (Hamilton Oil)             WV and LA                                                                               
             Gulf Energy Dev. Corp.                                                                                             
             (Penn Cent.)                                                                                                       
                                                                                                                                
  8/1/87   Enerfin Partners 1 LP      Includes 5 gas plants and 892 miles of        NA            13.8          NA  x       4.5 x
             Farmland Industries        pipeline in West Texas and Wyoming.                                                     
             (Gas Plant Div.)                                                                                                   
                                                                                                                                
                                                                                  Mean                          1.8 x       6.8 x   
                                                                                  High                          4.0 x      11.2 x   
                                                                                   Low                          0.6 x       3.5 x   
</TABLE>

- --------------------------------------
(a)   Operating results for Mountain Gas cover the period 7/16/92 to 6/30/93.
(b)   Annualized change in results for six month period ending 6/30/93.
(c)   Annualized nine months results.





<PAGE>   42
DILLON, READ & CO. INC                                         DECEMBER 10, 1993
- --------------------------------------------------------------------------------







                      HISTORICAL PREMIUMS OF NON-CONTROL
                               POSITION BUYOUTS








- --------------------------------------------------------------------------------
VALERO NATURAL GAS COMPANY

<PAGE>   43
             SUMMARY OF SELECTED CONTROLLING SHAREHOLDER BUYOUTS
                         COMPLETED/PENDING SINCE 1986

                 (Figures in Millions, Except per Share Data)


<TABLE>
<CAPTION>
                                                                                    PRIOR TO ANNOUNCEMENT               
                                                                                    ---------------------   
                                                                      ACQUIROR'S HOLDINGS        TARGET'S HOLDINGS       
                           TOTAL EQUITY    VALUE OF                 ------------------------    -----------------------   
                               VALUE       TARGET'S      TOTAL         NUMBER       PERCENT        NUMBER      PERCENT    
                              (100%)       HOLDINGS   SHARES OUT    SHARES HELD    OWNERSHIP    SHARES HELD   OWNERSHIP   
                               ($MM)        ($MM)        (MM)          (MM)          (%)           (MM)          (%)      
                           ------------    --------   ----------    -----------    ---------    -----------   ---------   
<S>                          <C>           <C>           <C>           <C>          <C>             <C>         <C>       
SUMMARY                                                                                                                  
STATISTICS    1986-1993                                                                                                 
                 Number         147.0       153.0        --            --           146.0           --          130.0     
                   Mean        $525.0      $150.4        --            --            70.7           --           26.6
                                                                                                      
                   1986                                                                               
                 Number           8.0         9.0        --            --            8.0            --            9.0
                   Mean         $73.3       $20.8        --            --           66.2            --           33.7
                                                                                                      
                   1987                                                                               
                 Number          21.0        22.0        --            --           18.0            --           23.0
                   Mean      $1,193.5      $461.2        --            --           73.7            --           27.0
                                                                                                      
                   1988                                                                               
                 Number          23.0        24.0        --            --           23.0            --           19.0
                   Mean        $293.1      $461.2        --            --           67.9            --           29.1
                                                                                                    
                   1989                          
                 Number          28.0        30.0        --            --           32.0            --           26.0
                   Mean        $547.4      $135.1        --            --           70.1            --           30.5
                                                 
                   1990                          
                 Number          25.0        25.0        --            --           23.0            --           23.0
                   Mean        $238.8       $59.0        --            --           72.6            --           28.0
                                                                                                      
                   1991                                                                               
                 Number          17.0        17.0        --            --           17.0            --           17.0
                   Mean        $915.1      $240.7        --            --           70.0            --           28.6
                                                                                                      
                   1992                                                                               
                 Number          14.0        14.0        --            --           13.0            --            9.0
                   Mean        $366.5       $53.4        --            --           73.6            --           22.5
                                                                                                      
           1993 To Date                                                                               
                 Number          11.0        12.0        --            --           12.0            --            4.0
                   Mean        $254.3       $40.3        --            --           69.8            --           27.7
</TABLE>                                  
          
<TABLE>
<CAPTION>
                                                                                     
                                                                                     
                            ACQUIROR'S                                               
                             OWNERSHIP                    PREMIUM TO MARKET (%)           
                               AFTER         -------------------------------------------------
                            TRANSACTION       ONE MONTH          ONE WEEK           ONE DAY   
                                (%)          BEFORE OFFER      BEFORE OFFER       BEFORE OFFER
                            -----------      ------------      ------------       ------------
<S>                            <C>              <C>              <C>                 <C>
SUMMARY                    
STATISTICS    1986-1993    
                 Number        159.0            137.0            137.0               137.0
                   Mean         89.4             35.2             33.3                30.2
                           
                   1986  
                 Number         10.0              7.0              7.0                 7.0
                   Mean         90.0             39.3             45.0                41.2
                         
                   1987  
                 Number         24.0             21.0             21.0                21.0
                   Mean         83.0             31.3             30.0                30.8
                         
                   1988  
                 Number         23.0             23.0             23.0                23.0
                   Mean         92.5             49.8             42.2                38.1
                         
                   1989  
                 Number         33.0             28.0             28.0                28.0
                   Mean         92.0             38.0             33.6                31.8
                         
                   1990  
                 Number         25.0             21.0             21.0                21.0
                   Mean         92.1             36.3             38.1                29.7
                         
                   1991  
                 Number         18.0             14.0             14.0                14.0
                   Mean         96.9             25.4             27.3                25.0
                         
                   1992  
                 Number         13.0             14.0             14.0                14.0
                   Mean         89.1             18.4             16.3                14.9
                         
           1993 To Date  
                 Number         13.0              9.0              9.0                 9.0
                   Mean         73.0             35.3             33.3                27.9
</TABLE>

Source:  Securities Data Corporation

<PAGE>   44
SUMMARY OF SELECTED CONTROLLING SHAREHOLDER BUYOUTS COMPLETED/PENDING SINCE 1986
                 (Figures in Millions, Except per Share Data)

<TABLE>
<CAPTION>
                                                                                                           Total Equity   Value of  
                                                                                                               Value      Target's 
  Date                                                                                                         (100%)     Holdings 
Announced Acquiror Name                   Target Name                      Consideration                       ($MM)       ($MM)  
- --------- -------------                   -----------                      -------------                   -------------  ---------
<S>       <C>                             <C>                              <C>                                <C>        <C>
05/09/86  WR Grace & Co                   El Torito Restaurants Inc        $20.50 cash/sh com                    $228.1     $62.5  
05/19/86  Konica Corp                     Fotomat (Konishiroku Photo)      $1.70 cash/sh com                      $42.5     $16.7  
05/30/86  Equity-DQSB Inc                 Delta Queen Steamboat Co         $4.3 mil/29.5% remaining interest       -         $4.3  
06/03/86  Investor                        Bayswater Realty & Capital       $11/sh com                              $9.9      $1.6  
06/24/86  Bally Manufacturing Corp        Bally's Park Place Inc                 -                                 -          -    
07/03/86  Laurentian Capital Corp         Founders Financial Corp          0.3575 sh com/sh com and               $15.5     $18.2  
                                                                           14.3 shs com/sh pfd                                     
08/19/86  British Car Auction Group PLC   Sandgate Corp                    $18.75 cash/sh com                     $82.5     $22.5  
10/02/86  Newell Co                       William E Wright Co (Newell Co)  $14.25 cash/sh com, plus an            $31.7     $13.0  
                                                                           additional $0.875 cash/sh com                           
                                                                           paid to shareholders that                               
                                                                           held shares on 10/24/85                                 
11/05/86  PS Group Inc                    Statex Petroleum Inc (PS Group)  $9.00 cash/sh com and                  $26.4     $10.1  
                                                                           $18.50 cash/$2.55                                       
                                                                           cumulative convertible                                  
                                                                           preferred stock, Series A,                              
                                                                           $20.00 par value                                        
11/19/86  General Felt Industries         Knoll International Inc          $12 cash/sh com, plus  options        $149.6     $38.0  
01/12/87  AEGON NV                        Life Investors Inc               $51.61 cash/sh com for                $456.5     $32.9  
                                                                           225,416 shs purchased                                   
                                                                           through tender offer and                                
                                                                           154,168 shs purchased                                   
                                                                           through merger (estimated) and                          
                                                                           $50.75 cash/sh com for                                  
                                                                           242,849 shs purchased from                              
                                                                           Ownership Participation Trust                           
01/20/87  Collins Foods International     Naugles Inc (Collins Foods)      0.2326 sh com/sh com                  $124.0     $10.0  
01/23/87  Fiat Trattori SpA               Hesston Corp (Fiat Trattori)     $4 cash/sh com and $12.50/sh            -         $9.6  
                                                                           convertible pfd                                         
03/03/87  Kebo AB(Investment AB Beijer)   Calmar Inc (Kebo/Beijer Inv AB)  $32 cash/sh com plus $1.14 mil        $161.3     $59.8  
                                                                           cash to cancel outstanding                              
                                                                           options                                                 
03/13/87  E-B Acquisition Co              Elder-Beerman Stores Corp        $33 cash/sh com                       $108.9     $33.0  
03/26/87  BP America(British Petroleum)   Standard Oil Co (British Petro)  $71.50 cash plus 0.2 war/sh        $17,459.6  $7,857.7  
                                                                           com plus $73.50 less exercise                           
                                                                           price/options plus $100                                 
                                                                           cash/sh cumulative pfd stock                            
04/28/87  Life Investors Inc              Life Investors Inc               $51.61 cash/sh com for                $456.5     $23.9  
                                                                           225,416 shs purchased                                   
                                                                           through tender offer and                                
                                                                           $50.75 cash/sh com for                                  
                                                                           242,848 shs purchased from                              
                                                                           Ownership Participation Trust                           
05/13/87  La Cadena Invts,Craig Corp      Stater Brothers Inc              $25.50 cash/sh com                    $106.6      $8.3  
06/22/87  Pearson Inc(Pearson PLC)        Camco Inc                        $29 cash/sh com plus                  $220.0     $77.8  
                                                                           $29 cash minus $14.12                                   
                                                                           exercise price/com stock  options                       
06/30/87  Berry Petroleum Company         Norris Oil Co                          -                                 -          -    
07/15/87  Hongkong & Shanghai Banking     Marine Midland Banks Inc         $83 cash/sh com                     $1,577.0    $752.0  
07/28/87  PI Acquisition Corp             Parisian Inc                     $30.65/sh com                         $496.5    $229.8  
07/29/87  Lexicon Corp                    SCOPE Inc(Lexicon Corp)                                                  -          -    
</TABLE>

<TABLE>
<CAPTION>
                                                                      Prior to Announcement                        
                                                                      ---------------------                        
                                                         Acquiror's Holdings        Target's Holdings    Acquiror's
                                                         -------------------        -----------------     Ownership
                                              Total      Number      Percent      Number       Percent      After    
  Date                                      Shares Out Shares Held  Ownership   Shares Held   Ownership  Transaction 
Announced Acquiror Name                       (MM)        (MM)         (%)         (MM)          (%)         (%)     
- --------- -------------                     ---------- -----------  ---------   -----------   ---------  -----------
<S>       <C>                                 <C>         <C>           <C>         <C>          <C>         <C>     
05/09/86  WR Grace & Co                        11.1         8.1         72.6          3.1        27.5        100.0   
05/19/86  Konica Corp                          25.0        15.2         60.6          9.8        42.0         99.8   
05/30/86  Equity-DQSB Inc                       -           -            -             -         29.5        100.0   
06/03/86  Investor                              0.9         0.8         84.0           -          -           84.0   
06/24/86  Bally Manufacturing Corp              -           -            -             -         16.0         16.0   
07/03/86  Laurentian Capital Corp               5.8         3.0         51.7          2.8        48.5        100.0   
08/19/86  British Car Auction Group PLC         4.4         3.2         72.7          1.2        27.0        100.0   
10/02/86  Newell Co                             2.1         1.2         59.3          0.9        41.0        100.0   
11/05/86  PS Group Inc                          2.9         2.0         68.4          0.9        31.5        100.0   
11/19/86  General Felt Industries              12.5         7.5         60.2          5.0        40.0        100.0   
01/12/87  AEGON NV                              8.9         7.7         87.3          0.6         7.0         94.3   
01/20/87  Collins Foods International          27.2        25.0         91.9          2.2         8.1        100.0   
01/23/87  Fiat Trattori SpA                     -           -            -            2.0        47.5         55.4   
03/03/87  Kebo AB(Investment AB Beijer)         5.0         3.2         63.7          1.8        36.3        100.0   
03/13/87  E-B Acquisition Co                    3.3         -            -            2.3        30.0         69.7   
03/26/87  BP America(British Petroleum)       237.6       130.2         54.8        107.4        45.0        100.0   
04/28/87  Life Investors Inc                    8.9         -            -            0.7         7.6          7.6   
05/13/87  La Cadena Invts,Craig Corp            4.2         3.9         92.2          0.3         7.8        100.0   
06/22/87  Pearson Inc(Pearson PLC)              7.6         4.8         63.1          2.8        37.1         99.9   
06/30/87  Berry Petroleum Company               -           -            -             -         20.0         20.0   
07/15/87  Hongkong & Shanghai Banking          19.0         -            -            9.2        48.0         48.4   
07/28/87  PI Acquisition Corp                  16.2         8.7         53.7          7.5        46.0        100.0   
07/29/87  Lexicon Corp                          -           -            -             -         50.0         50.0   
</TABLE>

<TABLE>
<CAPTION>
                                                                                  
                                                   Premium to Market  (%)       
                                                   ----------------------    
  Date                                      One Month      One Week       One Day 
Announced Acquiror Name                   Before Offer   Before Offer   Before Offer
- --------- -------------                   ------------   ------------   ------------
<S>       <C>                                  <C>            <C>           <C>    
05/09/86  WR Grace & Co                         18.8           19.7           9.3 
05/19/86  Konica Corp                           36.0           70.0          70.0 
05/30/86  Equity-DQSB Inc                                                         
06/03/86  Investor                             131.6          131.6         131.6 
06/24/86  Bally Manufacturing Corp                                                
07/03/86  Laurentian Capital Corp               42.9           42.9          42.9 
08/19/86  British Car Auction Group PLC          4.9            2.8           0.7 
10/02/86  Newell Co                              -              -             -      
11/05/86  PS Group Inc                          16.1           18.0           4.3 
11/19/86  General Felt Industries               24.7           29.7          29.7 
01/12/87  AEGON NV                               5.3            4.3           3.2 
01/20/87  Collins Foods International            -              -             -      
01/23/87  Fiat Trattori SpA                     14.3           28.0          23.1 
03/03/87  Kebo AB(Investment AB Beijer)         54.2           43.8          45.5 
03/13/87  E-B Acquisition Co                    55.3           51.7          46.7 
03/26/87  BP America(British Petroleum)         33.3           14.4          13.3 
04/28/87  Life Investors Inc                     1.2            0.7           0.7 
05/13/87  La Cadena Invts,Craig Corp            45.7           50.0          25.9 
06/22/87  Pearson Inc(Pearson PLC)              19.6           26.8          20.8 
06/30/87  Berry Petroleum Company                -              -             -      
07/15/87  Hongkong & Shanghai Banking           60.0           38.9          38.3 
07/28/87  PI Acquisition Corp                   71.5           72.7          77.7 
07/29/87  Lexicon Corp                           -              -             -      
</TABLE>


Source: Securities Data Corporation
<PAGE>   45
SUMMARY OF SELECTED CONTROLLING SHAREHOLDER BUYOUTS COMPLETED/PENDING SINCE 1986

                  (Figures in Millions, Except per Share Data)

<TABLE>
<CAPTION>
                                                                                                                     Total Equity
                                                                                                                         Value   
  Date                                                                                                                  (100%)   
Announced Acquiror Name                   Target Name                     Consideration                                  ($MM)   
- --------- -------------                   -----------                     -------------                              ------------
<S>       <C>                             <C>                             <C>                                           <C>       
08/17/87  Philips Gloeilampenfabrieken    North American Philips Corp     $56 cash/sh com and                           $1,715.0 
                                                                          $56-$12.97                                             
                                                                          (low exercise price)/option                            
09/09/87  Kinder-Care Inc                 Sylvan Learning Corp            sh com/sh com                                    $82.8 
10/09/87  Sugar Acquisition Corp          US Sugar Corp                   $80 cash/sh com                                 $200.8 
10/29/87  SDA Acquisition Corp            Thompson Medical Co Inc         $22.50 cash/sh com                              $167.5 
11/06/87  Sithe Energies Group            Energy Factors Inc              $8.25 cash/sh com                                $83.3 
11/24/87  Dallhold Investments Pty Ltd    St Joe Gold Corp(Fluor Corp)    $17 cash/sh com                                 $528.7 
12/02/87  Magma Power Co                  Magma Energy Inc(Magma Power)   1 Magma Power sh com/1.9 Magma                   $33.6 
                                                                          Energy sh com                                          
12/10/87  Brentwood Associates IV LP      Ideal School Supply Corp        $12.00 cash/sh com                               $50.4 
12/11/87  Freeport-McMoRan Energy         American Royalty Trust          $42.2 mil cash/4.8 mil units                    $383.2 
12/17/87  AGFA-Gevaert Graphics Inc       Compugraphic(AGFA-Gevaert)      $27/sh com                                      $232.9 
12/21/87  Rogers Communications Inc       Rogers Cablesystems of America  $22.75 cash/sh coma                             $418.1 
01/20/88  Investor                        Chariot Group Inc(Chariot)      $3.125 cash plus $5.60                           $20.8 
                                                                          principal amount of 7%                                 
                                                                          subordinated debenture/sh com                          
02/16/88  Paul Kalmanovitz Testamentry    Falstaff Brewing Corp           $12.00/sh com                                    $56.0 
02/17/88  Minstar Inc                     Genmar Industries Inc(Minstar)  $12.50 cash/sh com and                          $404.1 
                                                                          $920 cash/ $1,000 principal                            
                                                                          amount of Genmar's 7%                                  
                                                                          senior convertible debentures due 2006                 
02/25/88  Cie de Saint-Gobain SA          CertainTeed Corp(Saint-Gobain)  $47.50 cash/sh com; $47.50                      $909.0 
                                                                          minus exercise prices ranging                          
                                                                          from $17 to $34.75/option                              
03/03/88  First Texas Savings Assn        Gemcraft(First TX Svgs Assn)    $1.50 cash/sh com                                 $7.6 
03/16/88  Investor Group                  Arthur D Little Inc             $60 cash/sh com                                 $151.8 
03/17/88  Curtis Squire Inc               Regis Corp(Curtis Squire Inc)   $16.50/sh com                                    $29.7 
03/18/88  Dyson-Kissner-Moran Corp        Kearney National Inc            $19.35/sh com                                   $110.3 
03/18/88  Investor Group                  Meyers Parking System Inc       $28 cash/sh com                                  $75.6 
03/23/88  J&J Snack Foods Corp            ICEE-USA Corp                   $5.50 com/sh com and 1 option                     $9.2 
                                                                          to acquire J&J com/option to                           
                                                                          acquire ICEE-USA com with the                          
                                                                          same terms and conditions                              
04/11/88  SH Holdings Inc                 Gruen Marketing Corp(Jewelcor)  $11.75 cash/sh com +                            $106.4 
                                                                          $2.52 mil cash to cancel                               
                                                                          outstanding options                                    
04/22/88  Investor                        Trans World Airlines Inc        $20 cash plus $30 face value                  $1,525.0 
                                                                          of junior subordinated                                 
                                                                          debentures/sh com not already held by Icahn            
06/10/88  BIA-COR Holdings Inc            Braniff Inc(BIA-COR Holdings)   $7 cash plus one-fifth of a                     $125.1 
                                                                          share in the new Braniff/sh                            
                                                                          com $12.546 mil cash and                               
                                                                          stock/preferred shares                                 
06/22/88  Westminister Investment Corp    BF Saul Real Estate Invt Tr     $28 cash/sh com                                 $164.3 
07/01/88  Diversified Services Group Inc  Nutri/System Inc                108% face amount/12% senior                       -    
                                                                          notes, plus 78% face value/15%                         
                                                                          subordinated discount                                  
                                                                          debentures, plus $15.625                               
                                                                          cash/warrant to purchase common stock                  
07/14/88  Starrett Housing Corp           Levitt Corp                     1 sh com/sh com                                  $23.8 
</TABLE>

<TABLE>
<CAPTION>
                                                                                 Prior to Announcement                            
                                                                                 ---------------------                            
                                                                      Acquiror's Holdings       Target's Holdings      Acquiror's
                                            Value of                  -------------------       -----------------      Ownership  
                                            Target's      Total       Number      Percent      Number       Percent      After  
  Date                                      Holdings    Shares Out  Shares Held  Ownership   Shares Held   Ownership  Transaction 
Announced Acquiror Name                       ($MM)       (MM)         (MM)         (%)         (MM)          (%)         (%)     
- --------- -------------                     --------    ----------  -----------  ---------   -----------   ---------  -----------
<S>       <C>                                 <C>          <C>         <C>          <C>          <C>         <C>         <C> 
08/17/87  Philips Gloeilampenfabrieken        $758.0       30.6        16.8         54.9         13.8        45.0        100.0 
09/09/87  Kinder-Care Inc                      $27.6        7.2         4.8         66.7          2.4        33.3        100.0 
10/09/87  Sugar Acquisition Corp                $8.8        2.5         2.4         95.6          0.1         4.0        100.0 
10/29/87  SDA Acquisition Corp                 $56.3        7.5         5.0         67.1          2.5        33.3        100.0 
11/06/87  Sithe Energies Group                 $34.7       10.1         5.1         50.6          4.2        45.0         92.2 
11/24/87  Dallhold Investments Pty Ltd         $51.0       31.1        28.0         90.0          3.0         9.7         99.7 
12/02/87  Magma Power Co                       $11.1        8.5         5.7         67.1          2.8        33.0        100.0 
12/10/87  Brentwood Associates IV LP           $22.8        4.2         2.3         54.8          -           -           54.8 
12/11/87  Freeport-McMoRan Energy              $42.2       43.6        38.8         89.0          4.8        11.0        100.0 
12/17/87  AGFA-Gevaert Graphics Inc            $37.8        8.6         7.2         83.6          1.4        17.0        100.0 
12/21/87  Rogers Communications Inc             $1.3       18.4        18.3         99.7          0.1         0.3        100.0 
01/20/88  Investor                              $5.6        2.4         1.7         72.8          -           -           72.8 
02/16/88  Paul Kalmanovitz Testamentry         $27.6        4.7         2.4         50.7          2.3        34.0        100.0 
02/17/88  Minstar Inc                          $98.0       32.3        24.2         74.9          4.8        16.5         89.7 
02/25/88  Cie de Saint-Gobain SA              $391.3       19.1        10.9         56.7          -           -           56.7 
03/03/88  First Texas Savings Assn              $3.7        5.1         2.5         49.1          2.4        48.9         96.2 
03/16/88  Investor Group                       $38.5        2.5         1.9         74.6          0.6        25.4        100.0 
03/17/88  Curtis Squire Inc                     $0.9        1.8         1.3         69.4          -           -           69.4 
03/18/88  Dyson-Kissner-Moran Corp             $50.3        5.7         3.1         54.4          2.6        46.0        100.0 
03/18/88  Investor Group                       $15.1        2.7         2.2         80.0          0.5        20.0        100.0 
03/23/88  J&J Snack Foods Corp                  $2.4        1.7         1.1         66.8          0.6        33.2        100.0 
04/11/88  SH Holdings Inc                      $24.8        9.1         6.2         68.4          2.9        31.6        100.0 
04/22/88  Investor                            $355.0       30.5        23.4         76.7          7.1        23.0        100.0 
06/10/88  BIA-COR Holdings Inc                 $45.4       15.6         6.8         43.4          -           -           43.4 
06/22/88  Westminister Investment Corp         $29.2        5.9         4.8         82.2          1.0        17.8        100.0 
07/01/88  Diversified Services Group Inc      $121.0        -           -            -            -           -            -     
07/14/88  Starrett Housing Corp                 $4.8        3.4         2.7         80.0          0.7        20.0        100.0 
</TABLE>

<TABLE>
<CAPTION>
                                                     Premium to Market  (%)        
                                                     ----------------------
  Date                                        One Month      One Week       One Day       
Announced Acquiror Name                      Before Offer   Before Offer  Before Offer     
- --------- -------------                      ------------   ------------  ------------                                     
<S>       <C>                                   <C>            <C>           <C>      
08/17/87  Philips Gloeilampenfabrieken           33.3           30.2          33.3     
09/09/87  Kinder-Care Inc                        -8.0          -11.5          -9.8     
10/09/87  Sugar Acquisition Corp                 22.1           22.1          22.1     
10/29/87  SDA Acquisition Corp                   35.0           60.7         125.0     
11/06/87  Sithe Energies Group                   -1.5           40.4          50.0     
11/24/87  Dallhold Investments Pty Ltd          138.6           54.5          29.5     
12/02/87  Magma Power Co                         -4.2            1.9           9.0     
12/10/87  Brentwood Associates IV LP             33.3           37.1          37.1     
12/11/87  Freeport-McMoRan Energy                13.4           19.2          27.9     
12/17/87  AGFA-Gevaert Graphics Inc              28.6           42.1          27.8     
12/21/87  Rogers Communications Inc               5.8            2.8           0.6     
01/20/88  Investor                              158.5          118.1         111.5     
02/16/88  Paul Kalmanovitz Testamentry           33.3           33.3          33.3     
02/17/88  Minstar Inc                            51.5           37.0          37.0     
02/25/88  Cie de Saint-Gobain SA                 87.2           60.3          50.2     
03/03/88  First Texas Savings Assn               33.3           50.0          50.0     
03/16/88  Investor Group                         76.5           81.8          81.8     
03/17/88  Curtis Squire Inc                      20.0           10.0          11.9     
03/18/88  Dyson-Kissner-Moran Corp               56.4           54.8          50.3     
03/18/88  Investor Group                         64.7           64.7          60.0     
03/23/88  J&J Snack Foods Corp                   29.4           25.7          29.4     
04/11/88  SH Holdings Inc                        14.6           14.6          17.5     
04/22/88  Investor                               86.9           75.4          77.8     
06/10/88  BIA-COR Holdings Inc                   78.2           52.8          56.5     
06/22/88  Westminister Investment Corp           76.4           61.2          27.3     
07/01/88  Diversified Services Group Inc                                               
07/14/88  Starrett Housing Corp                  43.6           33.3          27.3     
</TABLE>


Source: Securities Data Corporation
<PAGE>   46
SUMMARY OF SELECTED CONTROLLING SHAREHOLDER BUYOUTS COMPLETED/PENDING SINCE 1986

                  (Figures in Millions, Except per Share Data)

<TABLE>
<CAPTION>
                                                                                                                      Total Equity 
                                                                                                                         Value     
  Date                                                                                                                   (100%)   
Announced Acquiror Name                   Target Name                     Consideration                                  ($MM)   
- --------- -------------                   -----------                     -------------                               ------------
<S>       <C>                             <C>                             <C>                                           <C>       
07/20/88  Home Owners Fed Svgs,Boston     Knutson Mortgage Corp           $10.1 cash/sh com                               $141.5 
10/05/88  MBS Associates                  MBS Textbook Exchange Inc       $10 cash/sh com                                  $52.0 
10/13/88  Industrial Equity(Pacific)Ltd   Associated Hosts Inc            $11/sh com                                       $49.5 
10/25/88  Chyron Corp                     CMX Corp(Chyron Corp)           1 sh com/4.75 shs com                            $10.5 
11/15/88  Qintex Resorts BV               Princeville Corp(Quintex AU)    $15.50 cash/sh com                              $154.3 
12/05/88  Zayre Corp                      TJX Cos(Zayre Corp)             1.45 shs Zayre com/sh com                     $2,436.0 
12/06/88  Investor                        Sage Energy Co                  $6.50 cash/sh com                                $71.5 
12/14/88  Ingram Industries Inc           Micro D Inc(Ingram Inds)        $14.75 cash/sh com                              $106.5 
01/27/89  United Meridian Corp            Ensource Inc(United Meridian)   $10.50 cash/sh com plus                          $66.3 
                                                                          $31.67 cash/sh cvt pfd                                 
                                                                          convertible into 3 common                              
                                                                          shares, plus assumption of  liabilities                
02/06/89  S & A Acquisition Corp          Seligman & Associates Inc       $6.50 cash/sh com                                $10.1 
02/15/89  ENSERCH Corp                    Enserch Exploration Partners    0.5 sh of Enserch com and $1                  $1,386.3 
                                                                          cash/sh com of Enserch                                 
                                                                          Exploration Partners                                   
02/21/89  Investor Group                  Security American Finl Entps    $9.77 cash/sh com, and                           $41.8 
                                                                          assumption of $880,000 of                              
                                                                          acquisition-related payments                           
                                                                          payable by Security American,                          
                                                                          and $204,080 to cancel stock  options                  
03/08/89  Commonwealth Mortgage Co Inc    Commonwealth Mortgage Co Inc    $8/sh com                                        $47.2 
03/10/89  Collins Foods International     Sizzler Restaurants Intl Inc    1.25 shs com/sh com                             $359.9 
03/15/89  Standard Shares Inc             Pittway Corp                    3 shs of a new issue Class A                    $153.8 
                                                                          stock/sh com                                           
03/21/89  Centel Corp                     Centel Cable Television Co      $45.625 cash/sh com                           $1,144.4 
03/31/89  MAXXAM Inc                      Horizon Corp(MAXXAM Inc)        $2.50/sh com                                     $18.1 
04/18/89  Primerica Corp                  American Capital Management     $11.50 cash or .32 sh com/sh                    $280.5 
05/12/89  Spie Group Inc                  Comstock Group Inc              $2.25 cash/sh com                                $21.4 
05/19/89  Carlson Hospitality Group Inc   TGI Friday's Inc(Carlson Cos)   $14.875/sh com, plus $.238 mil                  $266.5 
                                                                          to cancel all options to                               
                                                                          purchase additional common shares                      
05/24/89  Tele-Communications Inc         WestMarc Communications Inc     $32.25 cash/sh com, $32.25 pfd                  $819.0 
                                                                          sh/sh com for 1000 shares and                          
                                                                          $6.17 mil/sh issuable upon                             
                                                                          exercise of options                                    
06/08/89  Wheelabrator Group Inc          Fisher Scientific Grp(Henley)   $22.25 cash/sh com and $22.25                   $815.0 
                                                                          cash less exercise price of                            
                                                                          $16.13/option to acquire common shares                 
06/09/89  Primerica Corp                  AL Williams Corp(Primerica)     .82 shs com/sh com                            $1,503.0 
06/14/89  MacAndrews & Forbes Holdings    Andrews Group Inc               $7.25 principal amount of                        $66.0 
                                                                          Andrews Group 10% subordinated                         
                                                                          debentures due 1999/sh com                             
06/15/89  Wheelabrator Group Inc          Wheelabrator Group Inc          0.845 shs of the surviving                    $1,227.4 
                                                                          Wheelabrator Technologies                              
                                                                          after a one-for-four reverse                           
                                                                          stock split/sh of the old Wheelabrator                 
06/19/89  Investor Group                  Allied Security Inc             $62 cash/sh com                                  $30.2 
06/20/89  RLI Corp                        American Capacity Group Inc     $18 cash/sh com and $18 cash                     $36.4 
                                                                          less exercise price of $14.40/                         
                                                                          each of the 30,000 shares                              
                                                                                                                                 
</TABLE>

<TABLE>
<CAPTION>
                                                                               Prior to Announcement                    
                                                                               ---------------------                           
                                                                     Acquiror's Holdings       Target's Holdings     Acquiror's   
                                           Value of                  -------------------       -----------------     Ownership 
                                           Target's     Total       Number      Percent      Number       Percent      After      
  Date                                     Holdings   Shares Out  Shares Held  Ownership   Shares Held   Ownership  Transaction   
Announced Acquiror Name                     ($MM)       (MM)         (MM)         (%)         (MM)          (%)         (%)       
- --------- -------------                    --------   ----------  ----------   ---------   -----------  ---------   -----------
<S>       <C>                                <C>         <C>          <C>          <C>          <C>         <C>         <C>     
07/20/88  Home Owners Fed Svgs,Boston         $25.6       14.0        11.5         81.9          2.5        17.0        100.0   
10/05/88  MBS Associates                       $9.6        5.2         4.2         81.6          1.0        18.4        100.0   
10/13/88  Industrial Equity(Pacific)Ltd       $22.0        4.5         2.5         55.6          2.0        44.4        100.0   
10/25/88  Chyron Corp                          $2.1       11.8         9.5         80.5          2.3        19.4        100.0   
11/15/88  Qintex Resorts BV                   $70.0       10.0         5.2         51.9          4.8        48.1        100.0   
12/05/88  Zayre Corp                         $414.0       70.0        58.1         83.0         11.9        17.0        100.0   
12/06/88  Investor                            $22.2       11.0         7.6         69.0          3.4        31.0        100.0   
12/14/88  Ingram Industries Inc               $43.9        7.2         4.3         58.8          3.0        41.2        100.0   
01/27/89  United Meridian Corp                $28.0        6.3         3.8         60.2          -           -           60.2   
02/06/89  S & A Acquisition Corp               $1.2        1.6         1.4         88.1          0.2        15.0        100.0   
02/15/89  ENSERCH Corp                       $162.3      102.5        89.6         87.4         12.0        11.7         99.1   
02/21/89  Investor Group                      $18.3        4.3         2.5         58.7          -           -           58.7   
03/08/89  Commonwealth Mortgage Co Inc         $6.0        5.9         5.2         87.4          -           -           87.4   
03/10/89  Collins Foods International        $122.0       16.3        10.8         66.1          5.5        34.0        100.0   
03/15/89  Standard Shares Inc                 $76.8        4.6         2.3         50.1          2.3        49.0        100.0   
03/21/89  Centel Corp                        $211.9       25.1        20.4         81.3          4.6        18.3         99.7   
03/31/89  MAXXAM Inc                           $6.9        7.2         4.5         61.8          2.8        38.0        100.0   
04/18/89  Primerica Corp                      $48.3       24.4        20.2         82.6          4.2        17.4        100.0   
05/12/89  Spie Group Inc                       $7.7        9.5         6.1         64.2          3.4        35.8        100.0   
05/19/89  Carlson Hospitality Group Inc       $52.7       17.9        14.4         80.2          3.5        19.8        100.0   
05/24/89  Tele-Communications Inc            $185.4       25.4        18.4         72.6          7.0        26.5        100.0   
06/08/89  Wheelabrator Group Inc             $140.0       36.6        29.4         80.2          7.2        19.0        100.0   
06/09/89  Primerica Corp                     $453.9       67.6        47.2         69.8         20.4        29.2        100.0   
06/14/89  MacAndrews & Forbes Holdings        $28.3        9.1         5.2         57.2          3.9        43.0        100.0   
06/15/89  Wheelabrator Group Inc             $490.1       47.6        28.6         60.0         19.1        40.0        100.0   
06/19/89  Investor Group                      $14.4        0.5         0.3         52.3          0.2        46.0        100.0   
06/20/89  RLI Corp                             $7.1        2.0         1.6         79.5          0.4        20.5        100.0   
</TABLE>

<TABLE>
<CAPTION>
                                                   Premium to Market  (%)                
                                                   ----------------------                                      
  Date                                     One Month      One Week       One Day           
Announced Acquiror Name                   Before Offer   Before Offer  Before Offer         
- --------- -------------                   ------------   ------------  ------------
<S>       <C>                                 <C>            <C>           <C> 
07/20/88  Home Owners Fed Svgs,Boston          34.7           17.1          13.8         
10/05/88  MBS Associates                       63.3           56.9           9.6         
10/13/88  Industrial Equity(Pacific)Ltd         1.1            2.3          23.9         
10/25/88  Chyron Corp                          18.7           29.5          18.7         
11/15/88  Qintex Resorts BV                     3.3            6.0           3.3         
12/05/88  Zayre Corp                           47.3           43.5          42.0         
12/06/88  Investor                              4.0            6.1           2.0         
12/14/88  Ingram Industries Inc                57.3           37.2          40.5         
01/27/89  United Meridian Corp                 82.6           78.7          71.4         
02/06/89  S & A Acquisition Corp               33.3           33.3          33.3         
02/15/89  ENSERCH Corp                         40.5           21.6          20.2         
02/21/89  Investor Group                       34.8           22.1          18.4         
03/08/89  Commonwealth Mortgage Co Inc        146.2           82.9          82.9         
03/10/89  Collins Foods International          22.4           19.1          24.1         
03/15/89  Standard Shares Inc                 -66.6          -67.2         -67.0         
03/21/89  Centel Corp                           1.1            0.8           0.1         
03/31/89  MAXXAM Inc                           42.9            5.3          11.1         
04/18/89  Primerica Corp                        7.0           16.5          17.9         
05/12/89  Spie Group Inc                       28.6            5.9          20.0         
05/19/89  Carlson Hospitality Group Inc        14.4           13.3          12.3         
05/24/89  Tele-Communications Inc              33.0           22.9          19.4         
06/08/89  Wheelabrator Group Inc               12.7           14.1          15.6         
06/09/89  Primerica Corp                       44.7           40.1          24.4         
06/14/89  MacAndrews & Forbes Holdings         28.9           23.4           3.6         
06/15/89  Wheelabrator Group Inc              217.2          227.2         227.2         
06/19/89  Investor Group                       24.0           21.6          21.6         
06/20/89  RLI Corp                             71.4           71.4          53.2         
</TABLE>


Source: Securities Data Corporation
<PAGE>   47
SUMMARY OF SELECTED CONTROLLING SHAREHOLDER BUYOUTS COMPLETED/PENDING SINCE 1986

                  (Figures in Millions, Except per Share Data)

<TABLE>
<CAPTION>
                                                                                                                                  
                                                                                                                     Total Equity 
                                                                                                                        Value     
  Date                                                                                                                  (100%)   
Announced Acquiror Name                   Target Name                      Consideration                                ($MM)   
- --------- -------------                   -----------                      -------------                             ------------
<S>       <C>                             <C>                              <C>                                           <C>       
                                                                           reserved for issuance upon                             
                                                                           exercise of outstanding                                
                                                                           warrants                                               
06/23/89  Investor Group                  Connelly Containers Inc          $20/sh com                                       $23.8 
07/31/89  Montedison SpA                  HIMONT Inc(Montedison SpA)       $51 cash/sh com and $51 cash                  $3,332.7 
                                                                           less exercise price/option                             
08/11/89  Merrill Lynch & Co Inc          Fine Homes International LP      $18 cash/sh pfd limited                           -    
                                                                           partnership unit                                       
08/18/89  Raycomm Industries Inc          Mainstream Engineering Co Inc    Series B preferred stock plus warrants/com        -    
09/21/89  Dow Jones & Co Inc              Telerate Inc(Dow Jones & Co)     $21 cash/sh com                               $2,017.7 
09/22/89  Empire of Carolina Inc          Clabir Corp                      0.3 shs com/Ambrit sh com,                        -    
                                                                           and 0.01 shs com/Clabir sh com                         
                                                                           A and sh com B, and 0.2 shs                            
                                                                           com/Clabir sh pfd                                      
10/03/89  Esselte AB                      Esselte Business Systems Inc     $47.64/sh com                                   $980.1 
10/06/89  Investor Group                  M/I Schottenstein Homes Inc      $7.50 cash/sh com                                $44.4 
10/19/89  Canadian Pacific Ltd            Soo Line(Canadian Pacific LTD)   $21.50 cash/sh com                              $204.1 
10/20/89  Lep Group PLC                   Profit Systems Inc(LEP Group)    $11.75 cash/sh com and                           $64.5 
                                                                           $736,000 for options to                                
                                                                           acquire Profit Systems shares                          
11/01/89  Heritage Media Corp             POP Radio Corp(Heritage Media)   $21.10 cash/sh com;                              $75.7 
11/27/89  Investor Group                  Transtector Systems Inc          10-year high-yield debentures/com                 -    
11/28/89  Corporate Data Sciences Inc     Consolidated Packaging Corp      1 sh com/sh com                                   -    
12/18/89  Dundee Cement Co,St Lawrence    Ideal Basic Industries Inc                                                         -    
12/18/89  Holnam(Holderbank)              Ideal Basic Industries Inc       1 sh com/4 shs com                                -    
12/22/89  McKesson Corp                   PCS Inc(McKesson Corp)           $20 cash/sh com                                 $290.7 
01/08/90  Southmark Corp                  MGF Oil Corp(Southmark Corp)     $0.08 cash/sh com                                $28.3 
01/24/90  Imetal SA                       Copperweld Corp(Imetal SA)       $17 cash/sh com                                 $175.9 
02/09/90  Leucadia National Corp          BRAE Corp(Leucadia National)     $6.25 cash/sh com                                $52.0 
02/09/90  WR Grace & Co                   Del Taco Restaurants Inc         $3.25 cash/sh com                                $27.7 
02/16/90  Anderson Mavor Investments Ltd  National Mines Service Co        $8.875/sh com, and                               $43.8 
                                                                           approximately $500,000 to                              
                                                                           cancel options to purchase                             
                                                                           69,840 shares                                          
03/02/90  American Express Co             Shearson Lehman Brothers Hldgs   0.48 shs com/com                              $1,140.5 
03/22/90  Phoenix Advanced Technology     Nutri-Products Inc               4.69 shs com Phoenix/sh com                       $6.4 
05/08/90  ISS-International Service A/S   ISS International Service Sys    $12 cash/sh com                                  $46.0 
05/14/90  Valhi Inc                       Sybra Inc(Valhi Inc)             1.6 shs com/sh com                              $135.9 
05/17/90  Kansas City Southern Inds Inc   DST Systems Inc                  $15.85 cash/sh com                              $301.8 
05/18/90  OCP International Inc           Ketchum & Co                     $2.425 cash/sh com                                $5.8 
05/30/90  Tyco Toys Inc                   Nasta International Inc          $1.25 cash/sh com, sweetened                      $6.4 
                                                                           from $1/sh com                                         
06/29/90  Investor Group                  CR-PL                            $1.40/sh com                                      -    
07/06/90  Renault Vehicules Industriels   Mack Trucks Inc                  $6.25 cash/sh com                               $261.8 
07/12/90  Paramount Communications        TVX Broadcast Group Inc          $9.5/sh com                                     $292.2 
07/19/90  Caesars World Inc               Caesars New Jersey Inc           $22.25 cash plus interest                       $367.2 
                                                                           computed at the Sept 20                                
                                                                           26-week Treasury bill rate of                          
                                                                           7.45% beginning accrual on                             
                                                                           Sept 22/sh com for 2,029,227                           
                                                                           shs; $22.25 cash/sh com for                            
</TABLE>

<TABLE>
<CAPTION>
                                                                              Prior to Announcement                              
                                                                              ---------------------                              
                                                                     Acquiror's Holdings      Target's Holdings       Acquiror's 
                                            Value of                 -------------------      -----------------       Ownership  
                                            Target's     Total       Number      Percent      Number       Percent      After    
  Date                                      Holdings   Shares Out  Shares Held  Ownership   Shares Held   Ownership  Transaction 
Announced Acquiror Name                       ($MM)      (MM)         (MM)         (%)         (MM)          (%)         (%)     
- --------- -------------                     --------   ----------  -----------  ---------   -----------   ---------  ----------- 
<S>       <C>                                  <C>         <C>         <C>           <C>          <C>         <C>         <C>    
06/23/89  Investor Group                        $11.4        1.2         0.6         52.0          0.6        48.0        100.0  
07/31/89  Montedison SpA                       $639.0       65.4        52.5         80.4         12.8        19.6        100.0  
08/11/89  Merrill Lynch & Co Inc               $140.0       29.4        21.6         73.5          -           -           73.5  
08/18/89  Raycomm Industries Inc                  -          1.0         0.8         84.0          -           -           84.0  
09/21/89  Dow Jones & Co Inc                   $681.9       96.1        63.6         66.2         32.5        33.8        100.0  
09/22/89  Empire of Carolina Inc                  -         44.3        28.8         65.0         15.5        40.0        100.0  
10/03/89  Esselte AB                           $217.4       20.6        16.0         77.8          4.6        22.0        100.0  
10/06/89  Investor Group                         $7.5        5.9         4.9         83.0          -           -           83.0  
10/19/89  Canadian Pacific Ltd                  $89.8        9.5         5.3         55.8          4.2        44.2        100.0
10/20/89  Lep Group PLC                         $25.2        5.5         3.2         57.5          -           -           57.5  
11/01/89  Heritage Media Corp                   $39.0        3.6         2.1         57.0          1.5        43.0        100.0  
11/27/89  Investor Group                          -          -           -            -            -           -            -      
11/28/89  Corporate Data Sciences Inc             -          -           -            -            -           -            -      
12/18/89  Dundee Cement Co,St Lawrence            -          -           -            -            -          33.0         33.0  
12/18/89  Holnam(Holderbank)                   $100.6      176.3       118.7         67.3         57.6        32.7        100.0  
12/22/89  McKesson Corp                         $40.7       14.5        12.4         85.3          2.0        14.0         99.3  
01/08/90  Southmark Corp                         $1.7      353.3       332.5         94.1         20.8         5.9        100.0  
01/24/90  Imetal SA                             $78.0       10.4         5.8         55.6          4.6        44.4        100.0  
02/09/90  Leucadia National Corp                $23.0        8.3         4.7         56.0          -           -           56.0  
02/09/90  WR Grace & Co                          $5.1        8.5         -            -            1.6        11.0         18.2  
02/16/90  Anderson Mavor Investments Ltd        $21.6        4.9         2.5         50.5          2.4        49.5        100.0  
03/02/90  American Express Co                  $360.0       88.4        60.5         68.4         27.9        39.0        100.0  
03/22/90  Phoenix Advanced Technology            $2.0        8.8         6.0         69.0          2.7        31.0        100.0  
05/08/90  ISS-International Service A/S         $15.4        3.8         2.6         66.5          1.3        34.0        100.0  
05/14/90  Valhi Inc                              $4.1        5.6         5.4         97.0          0.2         3.0        100.0  
05/17/90  Kansas City Southern Inds Inc         $39.1       19.0        16.6         87.1          2.2        11.5         98.6  
05/18/90  OCP International Inc                  $1.9        2.4         1.6         66.7          0.8        33.3         99.4  
05/30/90  Tyco Toys Inc                          $1.7        5.1         3.8         74.2          1.3        25.8        100.0  
06/29/90  Investor Group                          -          -           -            -            -           -            -      
07/06/90  Renault Vehicules Industriels        $103.7       41.9        25.3         60.4         16.6        40.0        100.0  
07/12/90  Paramount Communications              $61.4       30.8        24.3         79.0          6.5        21.0        100.0  
07/19/90  Caesars World Inc                     $48.4       16.3        14.1         86.6          2.2        13.4        100.0  
                                        
</TABLE>


<TABLE>
<CAPTION>
                                                                Premium to Market  (%)              
                                                                ----------------------              
  Date                                                  One Month      One Week       One Day       
Announced Acquiror Name                               Before Offer   Before Offer  Before Offer     
- --------- -------------                               ------------   ------------  ------------     
<S>       <C>                                              <C>            <C>           <C>         
06/23/89  Investor Group                                     6.7            8.8           9.6       
07/31/89  Montedison SpA                                    30.8           26.3          15.6       
08/11/89  Merrill Lynch & Co Inc                             -              -             -         
08/18/89  Raycomm Industries Inc                                                                    
09/21/89  Dow Jones & Co Inc                                29.2           36.6          38.8       
09/22/89  Empire of Carolina Inc                                                                    
10/03/89  Esselte AB                                        44.9           39.6          27.9       
10/06/89  Investor Group                                    42.9           50.0          46.3       
10/19/89  Canadian Pacific Ltd                              24.6           14.7          22.9       
10/20/89  Lep Group PLC                                     56.7           74.1          80.8       
11/01/89  Heritage Media Corp                               -9.2            4.2          12.5       
11/27/89  Investor Group                                     -              -             -         
11/28/89  Corporate Data Sciences Inc                        -              -             -         
12/18/89  Dundee Cement Co,St Lawrence                       -              -             -         
12/18/89  Holnam(Holderbank)                                 -              -             -         
12/22/89  McKesson Corp                                     17.6           34.5          27.0       
01/08/90  Southmark Corp                                     -              -             -         
01/24/90  Imetal SA                                         33.3           41.7          47.8       
02/09/90  Leucadia National Corp                            38.9           38.9          33.3       
02/09/90  WR Grace & Co                                     73.3           73.3          30.0       
02/16/90  Anderson Mavor Investments Ltd                     9.2           12.7          20.3       
03/02/90  American Express Co                                7.5           18.6          -0.8       
03/22/90  Phoenix Advanced Technology                      -46.9          -49.2         -43.0       
05/08/90  ISS-International Service A/S                     60.0           60.0          54.8       
05/14/90  Valhi Inc                                          -              -             -         
05/17/90  Kansas City Southern Inds Inc                     51.0           40.9          24.3       
05/18/90  OCP International Inc                             21.3           29.3          14.1       
05/30/90  Tyco Toys Inc                                    -16.7           11.1          25.0       
06/29/90  Investor Group                                     -              -             -         
07/06/90  Renault Vehicules Industriels                     22.0           19.0          19.0       
07/12/90  Paramount Communications                          85.4           90.0          26.7       
07/19/90  Caesars World Inc                                 44.5           49.3          40.0       
                                                                                                    
</TABLE>
                                        

Source: Securities Data Corporation
<PAGE>   48
  Summary of Selected Controlling Shareholder Buyouts Completed/Pending Since
                                     1986

                  (Figures in Millions, Except per Share Data)

<TABLE>                                 
<CAPTION>                               
                                        
                                                                                                                                   
                                                                                                                     Total Equity   
                                                                                                                         Value      
  Date                                                                                                                  (100%)      
Announced Acquiror Name                   Target Name                          Consideration                             ($MM)      
- --------- -------------                   ------------                         -------------                         ------------   
<S>       <C>                             <C>                                  <C>                                    <C>           
                                                                               the remaining 146,718 shs                            
07/23/90  Investor Group                  Avery Inc                            $0.43 cash/sh com, up from             $    23.8     
                                                                               an initial offer of $0.35 cash/sh com                
07/24/90  Corkin Co                       Entwistle Co                         $46.40 cash/sh com                           -       
07/31/90  Freeport-McMoRan Inc            Freeport-McMoRan Oil and Gas         .3119461 shs com/sh com                $   249.9     
08/10/90  Diversicare Ltd(Counsel Corp)   Diversicare Corp of America          $2.40 cash/sh com                      $    27.4     
08/16/90  Academy Mergerco Inc            Academy Insurance Group Inc          $1.325 cash/sh com                     $    93.5     
10/02/90  Torch Energy Advisors Inc       Energy Assets Intl Corp              $.5 cash/sh com                        $    14.0     
10/02/90  Phoenix Affiliates Intl Inc     Phoenix American Inc                 $5 cash/sh com                         $    22.7     
10/08/90  Western Gas Resources Inc       Western Gas Processors Ltd           1 sh com/com limited                   $   269.4     
                                                                               partnership unit. The limited                        
                                                                               partnership unit consisted of                        
                                                                               $1.80 Cumulative Participating                       
                                                                               Units and non-preference                             
                                                                               limited partner interests                            
10/23/90  Ogden Corp                      ERC Environmental and Energy         $15.13 cash/sh com                     $    86.5     
11/11/90  US WEST Inc                     US WEST NewVector Group Inc          1.14 shs com/sh com Class A            $ 2,290.5     
12/07/90  Oxford Consolidated Inc         Premier Resources Ltd                1 sh com Oxford                        $     1.7     
                                                                               Consolidated/32 shs com                              
                                                                               Premier Resources                                    
01/03/91  Murphy Oil Corp                 Ocean Drilling & Exploration         .55 shs com/sh com                     $ 1,001.9     
01/04/91  Moore Business Forms(Moore)     KCR Technology Inc                                                                -       
01/25/91  Investor Group                  Medical Management of America        $5.75 cash plus $2.50 10%              $    54.5     
                                                                               secured 2-year promissory                            
                                                                               paid in eight equal quarterly                        
                                                                               installments/sh com                                  
02/05/91  Stoneridge Resources Inc        Major Group Inc                      .04 shs com/sh com; $.5 mil            $     2.0     
                                                                               promissory note/pfd                                  
02/06/91  BHP Hldgs(USA)Inc(Broken Hill)  Hamilton Oil Corp                    $40 cash or $40 Broken Hill            $ 1,085.9     
                                                                               American Depository                                  
                                                                               Receipts/sh com                                      
03/01/91  Air & Water Technologies Corp   Metcalf & Eddy Cos Inc               .875 shs com/sh com                    $   283.3     
05/01/91  Tele-Communications Inc         United Artists Entertainment         1.02 sh com/sh com; plus               $ 2,315.7     
                                                                               $4.75 cash/right; plus                               
                                                                               pfd/pfd; plus $17.17 cash/unit                       
06/13/91  Staveley Industries PLC         Weigh-Tronix(Staveley Indus)         $22 cash/sh com                        $    60.1     
06/28/91  BMG Equities Corp               United Capital Corp                                                               -       
07/12/91  Helm Resources Inc              Interpak Holdings Inc                $.25 cash plus $1.25 principal         $     4.5     
                                                                               amount of 12% debentures, due                        
                                                                               Dec 31, 1996/sh stock                                
07/25/91  Land O' Lakes Inc               Country Lake Foods Inc               $15.30 cash/sh com; $15.30             $    70.1     
                                                                               cash per share minus the                             
                                                                               exercise price/sh com if                             
                                                                               options for 150,000 shs com                          
                                                                               are exercised                                        
07/26/91  Bristol Holdings Inc            Sports-Tech International Inc        1.2 shs com/sh com                     $     2.0     
07/30/91  Pennzoil Co                     Jiffy Lube International Inc         $6 cash/sh com                         $    53.2     
07/30/91  Norfolk and Western Railway Co  Wabash Railroad Co                   $75 cash/sh pfd; $649.92               $   388.8     
                                                                               cash/sh com, based on 10.155                         
                                                                               times Norfolk Southern's                             
                                                                               closing stock price of $64 on                        
                                                                               Nov 12, the merger's effective date                  
</TABLE>                                                               
                                                                         
<TABLE>                                                                        
<CAPTION>                                                                 
                                                                               Prior to Announcement                                
                                                                               ---------------------                                
                                                                    Acquiror's Holdings        Target's Holdings        Acquiror's  
                                           Value of                 -------------------        -----------------        Ownership   
                                           Target's     Total       Number        Percent       Number      Percent       After     
  Date                                     Holdings   Shares Out  Shares Held    Ownership   Shares Held   Ownership   Transaction  
Announced Acquiror Name                     ($MM)        (MM)        (MM)           (%)         (MM)          (%)          (%)      
- --------- -------------                    ---------  ----------  -----------    ---------   -----------   ---------   -----------  
<S>       <C>                              <C>          <C>         <C>            <C>         <C>           <C>          <C>       
07/23/90  Investor Group                   $     4.0     55.4       46.0           83.0         9.4          17.0         100.0     
07/24/90  Corkin Co                              -        -          -              -           -            14.0           -       
07/31/90  Freeport-McMoRan Inc             $    46.2     23.0       18.7           81.5         4.3          18.5         100.0     
08/10/90  Diversicare Ltd(Counsel Corp)    $     1.3     11.4       10.9           95.4         -             -            95.4     
08/16/90  Academy Mergerco Inc             $    46.8     70.6        -              -          35.3          50.0          50.0    
10/02/90  Torch Energy Advisors Inc        $     2.0     28.0       24.0           85.7         -             -            85.7    
10/02/90  Phoenix Affiliates Intl Inc      $     6.3      4.5        3.3           72.4         1.3          27.6         100.0    
10/08/90  Western Gas Resources Inc        $   130.3     21.1       10.9           51.6        10.2          48.0         100.0    
10/23/90  Ogden Corp                       $    33.6      5.7        3.5           61.2         2.2          38.8         100.0    
11/11/90  US WEST Inc                      $   437.5     50.9       41.2           80.9         9.7          19.0         100.0    
12/07/90  Oxford Consolidated Inc          $     0.8     11.1        5.7           51.0         5.4          49.0         100.0    
01/03/91  Murphy Oil Corp                  $   391.8     51.7       31.6           61.1        20.1          39.0         100.0    
01/04/91  Moore Business Forms(Moore)            -        -          -              -           -             -             -      
01/25/91  Investor Group                   $    12.9      6.6        5.0           76.3         1.6          23.7         100.0    
02/05/91  Stoneridge Resources Inc         $     1.5     10.5        5.3           50.7         5.2          49.3         100.0    
02/06/91  BHP Hldgs(USA)Inc(Broken Hill)   $   524.3     27.2       14.0           51.7        13.1          48.3         100.0    
03/01/91  Air & Water Technologies Corp    $    51.0     14.7       12.1           82.0         2.7          18.0         100.0    
05/01/91  Tele-Communications Inc          $ 1,189.0    143.0       76.1           53.2        64.0          46.0          97.9    
06/13/91  Staveley Industries PLC          $    25.3      2.7        1.5           55.8         1.1          40.4          96.2    
06/28/91  BMG Equities Corp                     -         -          -              -           -            35.0         100.0    
07/12/91  Helm Resources Inc               $     0.7      3.0        2.5           84.0         0.5          16.0         100.0    
07/25/91  Land O' Lakes Inc                $    22.6      4.6        3.0           65.5         1.6          34.5         100.0    
07/26/91  Bristol Holdings Inc             $     0.6      1.1        0.8           67.7         0.4          33.3         100.0    
07/30/91  Pennzoil Co                      $     9.2      8.9        7.2           81.0         1.5          17.6          98.3    
07/30/91  Norfolk and Western Railway Co   $     8.5      0.6        0.6           99.8         -             1.0         100.0    
</TABLE>                                                                  
                                                                               
<TABLE>                                                                    
<CAPTION>                                                               
                                                              Premium to Market  (%)                
                                                              ----------------------                
  Date                                                One Month      One Week        One Day        
Announced Acquiror Name                              Before Offer   Before Offer    Before Offer    
- --------- -------------                              ------------   ------------    ------------    
<S>       <C>                                           <C>            <C>             <C>          
07/23/90  Investor Group                                -40.2          -31.2           -23.6        
07/24/90  Corkin Co                                       -              -               -          
07/31/90  Freeport-McMoRan Inc                           47.5           42.7            36.0        
08/10/90  Diversicare Ltd(Counsel Corp)                 102.1          125.9           125.9        
08/16/90  Academy Mergerco Inc                           21.1           24.7            21.1        
10/02/90  Torch Energy Advisors Inc                      77.8           33.3            33.3        
10/02/90  Phoenix Affiliates Intl Inc                    42.9           66.7            53.8        
10/08/90  Western Gas Resources Inc                       -              -               -          
10/23/90  Ogden Corp                                     44.1           44.1            37.5        
11/11/90  US WEST Inc                                    83.8           58.0            47.6        
12/07/90  Oxford Consolidated Inc                         -              -               -          
01/03/91  Murphy Oil Corp                                 9.2           24.1            14.0        
01/04/91  Moore Business Forms(Moore)                     -              -               -          
01/25/91  Investor Group                                 65.0           65.0            65.0        
02/05/91  Stoneridge Resources Inc                       21.6           21.6            10.5        
02/06/91  BHP Hldgs(USA)Inc(Broken Hill)                 31.1           21.2            18.5        
03/01/91  Air & Water Technologies Corp                  24.2           16.7            22.2        
05/01/91  Tele-Communications Inc                        25.7           22.2            19.9        
06/13/91  Staveley Industries PLC                        44.3           41.9            41.9        
06/28/91  BMG Equities Corp                               -              -               -          
07/12/91  Helm Resources Inc                              -              -               -          
07/25/91  Land O' Lakes Inc                              53.0           45.7            39.1        
07/26/91  Bristol Holdings Inc                          -40.0           10.8            10.8        
07/30/91  Pennzoil Co                                    20.0           20.0            20.0        
07/30/91  Norfolk and Western Railway Co                  -              -               -          
</TABLE>                                                                       
                                                                           
Source: Securities Data Corporation

<PAGE>   49
SUMMARY OF SELECTED CONTROLLING SHAREHOLDER BUYOUTS COMPLETED/PENDING SINCE 1986

                  (Figures in Millions, Except per Share Data)

<TABLE>
<CAPTION>
                                                                                                                                 
                                                                                                                     Total Equity
                                                                                                                        Value    
  Date                                                                                                                  (100%)   
Announced Acquiror Name                   Target Name                     Consideration                                 ($MM)    
- --------- -------------                   -----------                     -------------                              ------------
<S>       <C>                             <C>                             <C>                                           <C>       
                                                                                                                                 
08/02/91  EnviroSource Inc                Envirosafe Services Inc         4.25 shs com/sh com                              $44.9 
09/06/91  Penn Traffic Co                 P&C Food Markets Inc            $34 cash or 1.225 shs com;                      $267.1 
                                                                          holders may elect to receive                           
                                                                          stock or cash or some mixture                          
                                                                          subject to proration; $18.8                            
                                                                          mil cash plus 900,000 shs                              
                                                                          com/com plus pfd                                       
09/18/91  Arkla Inc                       Arkla Exploration Co            .95 sh com/sh com                               $514.5 
09/24/91  MCEN Corp                       Magic Circle Energy Corp        $.24 cash/sh com                                  $3.6 
10/16/91  Time Warner                     American Television & Commun    $82.50 of redeemable reset                    $9,405.0 
                                                                          notes redeemable on Aug 15,                            
                                                                          2002/sh com                                            
02/06/92  Charter Co(American Financial)  Spelling Entertainment Inc      1 sh com/sh com                                 $239.3 
02/24/92  Unocal Corp                     Unocal Exploration Corp         .54 sh com/sh com                             $2,937.3 
03/02/92  WR Grace & Co                   Grace Energy Corp               $19 cash/sh com                                 $465.8 
03/20/92  BLV Acquisition Corp            Belvedere Corp                  $6.30 cash/sh com                                $37.4 
05/07/92  Credit Lyonnais Bank Nederland  Pathe Communications Corp       $1.50 cash/sh com                                $89.6 
06/02/92  Investor                        Newport Electronics Inc         $4 cash/sh com                                    $4.6 
06/25/92  Katy Holdings                   Katy Industries Inc             $25.75 cash/sh com                              $232.3 
07/02/92  Preferred Equities Corp         Vacation Spa Resorts Inc        1 Mego Financial sh com/4 shs                     $5.7 
                                                                          com                                                    
07/06/92  Simshares Inc(Simetco Inc)      Simetco Inc                     $1.9493 cash/sh pfd Class A                       $0.4 
07/24/92  Reliance Group Holdings Inc     Frank B Hall & Co               .625 sh com/sh com, for                         $264.5 
                                                                          remaining 13.269 mil shs                               
08/17/92  Leucadia National Corp          PHLCORP Inc                     0.406 sh com/sh com                             $379.3 
08/25/92  Union Planters Corp             Bank of East Tennessee          $13 8%-cumulative convertible                     -    
                                                                          pfd Series E/sh com                                    
10/09/92  Dundee Bancorp International    Avalon Corp(Corona Corp)        $3.75 cash/sh com and pfd                        $47.1 
11/13/92  Rust International Inc          Brand Cos Inc                   Choice of $18.75 cash or 1 sh com/sh            $422.2 
12/17/92  Investor Group                  Ambulatory Medical Care Inc     $5.5 cash/sh com                                  $5.8 
01/04/93  Investor Group                  United Medical Corp             $9.50 cash/sh com                                $24.6 
02/18/93  Sahara Resorts                  Sahara Casino Partners LP       1 new Sahara Gaming sh com/4.6                   $53.7 
                                                                          units plus 1 new Sahara                                
                                                                          Gaming exchangeable redeemable                         
                                                                          sh prd/unit                                            
02/19/93  National Mutual Insurance Co    Celina Financial Corp           $5.80 cash/sh com Class A                         $9.7 
04/14/93  Vertex Industries Inc           Computer Transceiver Sys Inc    $393,240 com plus $1,206,760                      -    
                                                                          debt reduction/42.9% remaining interest                
04/26/93  DWG Corp                        Southeastern Public Service Co  .8 shs com/sh com                               $297.0 
05/24/93  USTrails Inc                    Thousand Trails Inc             $1.55 cash/sh com                                $35.5 
05/25/93  Newport Capital Inc             American Medcare Corp                                                             -    
06/17/93  Apache Corp                     Hadson Energy Resources Corp    Choice of $15 cash or $15 com/sh com            $102.8 
06/23/93  Comcast Corp                    Comcast Cablevision of Phila    $90 cash/sh com                                 $145.4 
07/01/93  Quartex Corp                    CMS/DATA Corp(Quartex Corp)     5.6 shs com in the newly                          -    
                                                                          structured entity/sh com                               
07/27/93  Investor Group                  Forum Group Inc                 $3.62 cash/sh com                                $64.4 
07/30/93  State Mutual Life Assurance Co  Allmerica Property & Casualty                                                     -    
09/20/93  Valley Fashions Corp            West Point-Pepperell Inc        $46 cash/1.476 mil shs com                    $1,357.9 
10/13/93  Medco Containment Services Inc  Medical Marketing Group Inc     $27.25 cash/sh com                              $313.7 
10/19/93  Trigen Energy Corp              United Thermal Corp             $4.50/sh com                                    $392.7 
</TABLE>


<TABLE>
<CAPTION>
                                                                                 Prior to Announcement      
                                                                                 ---------------------
                                                                      Acquiror's Holdings       Target's Holdings      Acquiror's 
                                             Value of                 -------------------       -----------------      Ownership   
                                             Target's     Total       Number      Percent      Number       Percent      After   
  Date                                       Holdings   Shares Out  Shares Held  Ownership   Shares Held   Ownership   Transaction 
Announced Acquiror Name                       ($MM)       (MM)         (MM)         (%)         (MM)          (%)          (%)      
- --------- -------------                      --------   ----------  -----------  ---------   -----------   ---------   -----------
<S>       <C>                                <C>           <C>         <C>           <C>          <C>         <C>         <C>   
08/02/91  EnviroSource Inc                      $16.8        3.8         2.4         62.5          1.4        37.4        100.0 
09/06/91  Penn Traffic Co                       $43.9        7.9         6.6         83.6          1.3        10.0        100.0 
09/18/91  Arkla Inc                             $92.6       33.3        27.3         82.0          6.0        18.0        100.0 
09/24/91  MCEN Corp                              $1.7       14.9         7.7         51.9          -           -           51.9 
10/16/91  Time Warner                        $1,699.5      114.0        93.4         81.9         20.6        18.0        100.0 
02/06/92  Charter Co(American Financial)        $43.0       33.0        27.2         82.3          5.8        18.0        100.0 
02/24/92  Unocal Corp                          $117.5      251.5       241.4         96.0         10.1         4.0        100.0 
03/02/92  WR Grace & Co                         $77.3       24.5        20.5         83.4          4.1        16.6        100.0 
03/20/92  BLV Acquisition Corp                  $16.9        5.9         3.3         54.8          2.7        44.8         99.5 
05/07/92  Credit Lyonnais Bank Nederland         $4.2       59.8        53.4         89.3          2.8         4.8         94.0 
06/02/92  Investor                               $1.3        1.2         0.8         71.5          -           -           71.5 
06/25/92  Katy Holdings                        $111.8        9.0         4.7         51.9          -           -           51.9 
07/02/92  Preferred Equities Corp                $1.2       17.4        13.9         80.0          3.5        20.0        100.0 
07/06/92  Simshares Inc(Simetco Inc)             $0.1        0.2         -            -            -           -            -     
07/24/92  Reliance Group Holdings Inc           $39.4       89.1        75.8         85.1          -           -           85.1 
08/17/92  Leucadia National Corp               $139.9       14.7         9.3         63.1          5.4        36.9        100.0 
08/25/92  Union Planters Corp                     -          -           -            -            -           -            -     
10/09/92  Dundee Bancorp International           $7.8       12.6        10.5         83.5          1.7        13.4         96.8 
11/13/92  Rust International Inc               $185.0       22.5        12.6         55.8          9.9        44.0        100.0 
12/17/92  Investor Group                         $2.3        1.1         0.6         60.0          -           -           60.0 
01/04/93  Investor Group                        $11.8        2.6         1.4         52.0          1.2        48.0        100.0 
02/18/93  Sahara Resorts                        $19.4       19.4        12.4         64.0          -           -           64.0 
02/19/93  National Mutual Insurance Co           $4.4        1.7         -            -            0.6        35.8         35.8 
04/14/93  Vertex Industries Inc                  $0.4        -           -            -            -           -            -     
04/26/93  DWG Corp                              $86.1       11.6         8.2         71.0          -           -           71.0 
05/24/93  USTrails Inc                           $7.1       22.9        18.3         80.0          -           -           80.0 
05/25/93  Newport Capital Inc                     -         35.7        28.7         80.2          7.1        19.8        100.0 
06/17/93  Apache Corp                           $31.9        6.9         4.2         61.8          -           -           61.8 
06/23/93  Comcast Corp                          $11.6        1.6         1.5         92.0          -           -           92.0 
07/01/93  Quartex Corp                            -          6.2         4.1         66.2          -           -           66.2 
07/27/93  Investor Group                        $23.0       17.8        11.5         64.3          1.3         7.3         71.6 
07/30/93  State Mutual Life Assurance Co          -         20.9        12.0         57.4          -           -           57.4 
09/20/93  Valley Fashions Corp                  $64.4       29.5        28.0         95.0          -           -           95.0 
10/13/93  Medco Containment Services Inc       $157.0       12.6         6.8         54.2          -           -           54.2 
10/19/93  Trigen Energy Corp                    $66.8       87.3         -            -            -           -            -     
</TABLE>



<TABLE>
<CAPTION>
                                                      Premium to Market  (%)               
                                                      ----------------------
  Date                                        One Month       One Week       One Day             
Announced Acquiror Name                     Before Offer    Before Offer   Before Offer            
- --------- -------------                     ------------    ------------   ------------                                            
<S>       <C>                                     <C>            <C>           <C>
08/02/91  EnviroSource Inc                         -2.6           11.3          16.9           
09/06/91  Penn Traffic Co                           -              -             -                
09/18/91  Arkla Inc                                30.0           28.6           8.3           
09/24/91  MCEN Corp                               -14.7          -14.7          -4.0           
10/16/91  Time Warner                              88.6           67.5          66.7           
02/06/92  Charter Co(American Financial)           45.0           45.0          52.6           
02/24/92  Unocal Corp                              22.9           18.3          18.3           
03/02/92  WR Grace & Co                             7.8           21.6          24.6           
03/20/92  BLV Acquisition Corp                     40.0           57.5          44.0           
05/07/92  Credit Lyonnais Bank Nederland            -              -             -                
06/02/92  Investor                                 -5.9           -5.9          -5.9           
06/25/92  Katy Holdings                            46.1           51.5          53.7           
07/02/92  Preferred Equities Corp                 -34.0          -34.0         -34.0           
07/06/92  Simshares Inc(Simetco Inc)               41.8           20.0          20.0           
07/24/92  Reliance Group Holdings Inc             -18.1          -25.8         -34.0           
08/17/92  Leucadia National Corp                   28.9           15.2          12.1           
08/25/92  Union Planters Corp                      36.8           20.9          20.9           
10/09/92  Dundee Bancorp International             50.0           42.9          42.9           
11/13/92  Rust International Inc                    4.9           13.6           4.9           
12/17/92  Investor Group                           -8.3          -12.0         -12.0           
01/04/93  Investor Group                           49.0           52.0          49.0           
02/18/93  Sahara Resorts                            5.1           -8.0          -4.0           
02/19/93  National Mutual Insurance Co             36.5           36.5          16.0           
04/14/93  Vertex Industries Inc                     -              -             -                
04/26/93  DWG Corp                                                                             
05/24/93  USTrails Inc                            106.7           65.3          45.9           
05/25/93  Newport Capital Inc                       -              -             -                
06/17/93  Apache Corp                              25.0           27.7          26.3           
06/23/93  Comcast Corp                              9.8            9.8          28.6           
07/01/93  Quartex Corp                              -              -             -                
07/27/93  Investor Group                          106.9          141.3         122.8           
07/30/93  State Mutual Life Assurance Co            -              -             -                
09/20/93  Valley Fashions Corp                     -6.1           -7.1          -7.8           
10/13/93  Medco Containment Services Inc          -15.3          -18.0         -25.9           
10/19/93  Trigen Energy Corp                                                                   
</TABLE>


Source: Securities Data Corporation

<PAGE>   50


Dillon, Read & Co. Inc.                                         December 3, 1993
- --------------------------------------------------------------------------------
                   HISTORICAL PREMIUM ON MINORITY CLOSE-OUTS
                           ONE MONTH BEFORE OFFER*
- --------------------------------------------------------------------------------


                                   {GRAPH}
                                {COPY TO COME}
                                   Premiums
                                  
Mean:  35.2%

Median:  33.0%

Range:  -66.6-217.2%

*  Includes 137 transactions from 1/1/86-11/22/93


- --------------------------------------------------------------------------------
VALERO NATURAL GAS COMPANY

<PAGE>   51


Dillon, Read & Co. Inc.                                         December 3, 1993
- --------------------------------------------------------------------------------
                   HISTORICAL PREMIUM ON MINORITY CLOSE-OUTS
                            ONE WEEK BEFORE OFFER*
- --------------------------------------------------------------------------------


                                   [GRAPH]
                                [COPY TO COME]
                                   Premiums

Mean:  33.3% 

Median:  28.6%

Range:  -672 -227.2%

*  Includes 137 transactions from 1/1/86-11/22/93


- --------------------------------------------------------------------------------
VALERO NATURAL GAS COMPANY

<PAGE>   52
Dillon, Read & Co. Inc.                                         December 3, 1993
- --------------------------------------------------------------------------------
                   HISTORICAL PREMIUMS ON MINORITY CLOSE-OUTS
                            ONE DAY BEFORE OFFER*
- --------------------------------------------------------------------------------


                                   [GRAPH]
                                [COPY TO COME]
                                   Premiums

Mean:  30.2%

Median:  24.4%

Range:  -67.0 - 227.2%

*  Includes 137 transactions from 1/1/86-11/22/93


- --------------------------------------------------------------------------------
VALERO NATURAL GAS COMPANY

<PAGE>   53

Dillon, Read & Co. Inc.                                        December 10, 1993
- --------------------------------------------------------------------------------

                      WEIGHTED AVERAGE COST OF CAPITAL ANALYSIS

- --------------------------------------------------------------------------------
Valero Natural Gas Company

<PAGE>   54

- --------------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                         Page 1  12/09/93
                       Valero Natural Gas Partners, L.P.
                   Weighted Average Cost of Capital Analysis
                                ($ in millions)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                       Market
                            Levered   Cost of   Unlevered   Pretax    Value of     Book      Pretax
                             Beta     Equity      Beta      Cost of    Equity    Value of   W.A.C.C.         
         Company              (a)       (b)        (a)      Debt (c)  12/08/93     Debt       (d)
         -------            -------   -------   ---------   --------  --------   --------   --------
<S>                          <C>       <C>        <C>        <C>        <C>        <C>       <C>
Gas Gathering Companies
- -----------------------
American Oil & Gas           0.80      12.04%     0.58       6.42%      $250.9     $ 96.5    10.48%
Associated Natural Gas       1.00      13.50%     0.73       8.72%      $412.5     $149.0    12.23%
Tejas Gas Corp.              0.65      10.95%     0.36       6.28%      $530.8     $416.5     8.89%
Tejas Power Corp.            0.44       9.41%     0.38       5.82%      $138.5     $ 22.8     8.90%
Western Gas Resources        0.78      11.89%     0.48       4.43%      $772.3     $493.0     8.98%


Mean                         0.73      11.56%     0.51       6.33%      $421.0     $235.6     9.90%
Median                       0.78      11.89%     0.48       6.28%       412.5      149.0     8.98%

Pipeline MLPs
- -------------
Buckeye Partners             0.45       9.49%     0.30      10.92%      $468.4     $229.4     9.96%
Kaneb Pipe Line              0.37       8.90%     0.34      11.94%      $357.1     $ 35.5     9.18%
Lakehead Pipeline            0.39       9.05%     0.27       9.49%      $720.3     $323.1     9.18%
Santa Fe Pacific                                                                            
  Pipeline                   0.65      10.95%     0.44      10.41%      $752.2     $355.0    10.77%
TEPPCO Partners              0.30       8.39%     0.15      10.18%      $377.6     $361.5     9.26%

                                                                      
Mean                         0.43       9.35%     0.30      10.59%      $535.1     $260.9     9.67%
Median                       0.39       9.05%     0.30      10.41%       468.4      323.1     9.26%


Valero Natural Gas 
  Partners, LP               0.78      11.89%     0.19       9.75%      $209.6     $648.2    10.27%

</TABLE>


      Risk Free Rate = 6.20% (Yield on 20-Yr Treasury Bonds as of 11/26/93)
      Market Risk Premium = 7.3% (Average over last 70 years)
      Long-term expected equity risk premium (common stock returns
      versus long-term gov't bond returns), from Ibbotson Associates,
      Inc. (1993 Edition)
(a)   Adjusted Levered Betas obtained from Bloomberg Financial Markets
      System and cover the period from 5/1/91 to 10/13/93. Valero's Beta 
      assumed to be equal to median Levered Beta of gas gathering companies
      (0.78).  Unlevered Beta = (Levered Beta) x (Equity / Total Market 
      Capitalization). Assumed Debt Beta = 0.
(b)   Cost of Equity = Risk Free Rate + [Predicted Beta) x (Market Risk
      Premium]
(c)   Average interest cost over the latest stub period. See Page 2 for
      details. For Valero, figure represents estimated current market 
      rates.
(d)   Pretax W.A.C.C. = (Debt / Total Market Capitalization) x (Pretax
      Cost of Debt) + (Equity / Total Market Capitalization) x (Cost of 
      Equity)

<PAGE>   55

- ---------------------------------------------------------------------------
Dillon, Read & Co. Inc.                                    Page 1  12/09/93

                          Valero Natural Gas Partners, L.P.
                      Weighted Average Cost of Capital Analysis
                                   ($ in millions)


<TABLE>
<CAPTION>
                                                                         Market
                                Levered   Cost of   Unlevered    Pretax    Value of     Book      Pretax
                                  Beta    Equity       Beta      Cost of    Equity    Value of   W.A.C.C.
          Company                  (a)      (b)         (a)       Debt (c)  12/08/93     Debt       (d)
          -------                -------  --------   ---------    --------  --------   --------   --------
<S>                               <C>      <C>        <C>         <C>        <C>        <C>        <C>
Gas Gathering Companies
- -----------------------
American Oil & Gas                 0.80     12.04%     0.58         6.42%     $250.9     $ 96.5     10.48%
Associated Natural Gas             1.00     13.50%     0.73         8.72%     $412.5     $149.0     12.23%
Tejas Gas Corp.                    0.65     10.95%     0.36         6.28%     $530.8     $416.5      8.89%
Tejas Power Corp.                  0.44      9.41%     0.38         5.82%     $138.5     $ 22.8      8.90%
Western Gas Resources              0.78     11.89%     0.48         4.43%     $772.3     $493.0      8.98%


Mean                               0.73     11.56%     0.51         6.33%     $421.0     $235.6      9.90%
Median                             0.78     11.89%     0.48         6.28%      412.5      149.0      8.98%

Pipeline MLPs
- -------------
Buckeye Partners                   0.45      9.49%     0.30        10.92%     $468.4     $229.4      9.96%
Kaneb Pipe Line                    0.37      8.90%     0.34        11.94%     $357.1     $ 35.5      9.18%
Lakehead Pipeline                  0.39      9.05%     0.27         9.49%     $720.3     $323.1      9.18%
Santa Fe Pacific Pipeline          0.65     10.95%     0.44        10.41%     $752.2     $355.0     10.77%
TEPPCO Partners                    0.30      8.39%     0.15        10.18%     $377.6     $361.5      9.26%


Mean                               0.43      9.35%     0.30        10.59%     $535.1     $260.9      9.67%
Median                             0.39      9.05%     0.30        10.41%      468.4      323.1      9.26%


Valero Natural Gas Patners, LP     1.95     20.42%     0.48         9.75%     $209.6     $648.2     12.36%

</TABLE>
      ---------------------------------------------------------------------
      Risk Free Rate = 6.20% (Yield on 20-Yr Treasury Bonds as of 11/26/93)
      Market Risk Premium = 7.3% (Average over last 70 years)
      Long-term expected equity risk premium (common stock returns versus
      long-term gov't bond returns), from Ibbotson Associates, Inc. 
      (1993 Edition)
 (a)  Adjusted Levered Betas obtained from Bloomberg Financial Markets
      System and cover the period from 5/1/91 to 10/13/93. Valero's Beta 
      assumed to be equal to medium Levered Beta of gas gathering companies
      (0.78). Unlevered Beta = (Levered Beta) x (Equity / Total Market 
      Capitalization). Assumed Debt Beta = 0.
 (b)  Cost of Equity = Risk Free Rate + (Predicted Beta) x (Market Risk
      Premium)
 (c)  Average interest cost over the latest stub period. See Page 2 for
      details. For Valero, figure represents estimated current market 
      rates.
 (d)  Pretax W.A.C.C. = (Debt / Total Market Capitalization) x (Pretax
      Cost of Debt) + (Equity / Total Market Capitalization) x (Cost of 
      Equity)

<PAGE>   56

Dillon, Read & Co., Inc.                         December 10, 1993
- ------------------------------------------------------------------


                    G&A AND O&M SAVINGS ANALYSIS


- ------------------------------------------------------------------
Valero Natural Gas Company


<PAGE>   57



Dillon, Read & Co. Inc.                       December 3, 1993
- --------------------------------------------------------------
                 G&A AND O&M SAVINGS ANALYSIS
- --------------------------------------------------------------

*  The Dillon Read team analyzed VLP's expenditures as a 
   percentage of revenue relative to its peer group. This 
   analysis was performed to identify any potential synergetic 
   savings which may/should be implicit in the price paid to 
   the public unitholders of VLP.


<TABLE>
<CAPTION>

                                   (% G&A and O&M)/Gross Margin
                         ------------------------------------------ 
                                        Broad         Stand-Alone
                                   Peer Group (a)    Peer Group (b)
                                   --------------    --------------

   Time Period            VLP      Mean    Median    Mean    Median
   -----------            ---      ----    ------    ----    ------
<S>                      <C>       <C>      <C>      <C>      <C>
1990                     44.1%     43.9%    44.1%    41.2%    43.6%
1991                     43.9%     39.9%    40.9%    41.5%    40.9%
1992                     48.8%     39.1%    41.1%    40.8%    41.1%
Three-Year Average
  (1990-1992)            45.6%     41.0%    41.0%    41.2%    41.0%
LTM (9/30/93)            48.4%(c)  39.7%    41.6%    42.2%    41.7%

</TABLE>

(a)  Broad peer group included AOG, AQP, NGA, TEJ, TPC, NGL, DGP and WGR.
(b)  Stand-alone peer group includes AOG, NGA, TEJ, TPC, NGL and WGR.
(c)  Adjusted for nonrecurring items present in LTM 9/30/93 financials.


- -------------------------------------------------------------------------
Valero Natural Gas Company

<PAGE>   58
           Operational Comparison for Selected Comparable Companies   
     Selected Natural Gas Gathering, Marketing and Distribution Companies
                           (Figures in $ Millions)
<TABLE>
<CAPTION>


                                Valero Natural   American   Aquila Gas   Associated                                    
                                Gas Ptnshp.(a)   Oil & Gas   Pipeline    Natural Gas   Tejas Gas(b)   Tejas Power   
                                --------------   ---------  ----------   -----------   ------------   -----------
<S>                                <C>            <C>          <C>         <C>            <C>           <C>
1990                                                                                               
- ----                                                                                              
 Total Revenues                    $1,091.5       $441.2       $12.4       $394.8         $252.9        $117.5
 Gross Margin                         256.3         59.8         5.2         50.4           52.2          18.7
  General & Administrative             42.6         14.5         1.6          6.5            7.9           4.7
  Operation & Maintenance              70.4         11.5         1.4         15.8            8.1           3.4
                                                                                                     
   % G & A/Revenues                    3.9%         3.3%       13.2%         1.6%           3.1%          4.0%       
   % O & M/Revenues                    6.5%         2.6%       10.9%         4.0%           3.2%          2.9%
   % (G&A & O&M) Revenues             10.4%         5.9%       24.1%         5.6%           6.3%          6.9%
  
   % G & A/Gross Margin               16.6%        24.3%       31.3%        12.9%          15.1%         25.0%
   % O & M/Gross Margin               27.5%        19.3%       25.9%        31.3%          15.5%         18.2%
   % (G&A & O&M) Gross Margin         44.1%        43.6%       57.2%        44.1%          30.6%         43.2%
  
1991
- ----
 Total Revenues                    $1,144.0       $380.7       $72.9       $630.7         $454.5        $144.5
 Gross Margin                         247.7         69.4        28.8         70.0           78.6          16.8
  General & Administrative             34.8         15.4         3.1          9.0           12.9           5.3
  Operation & Maintenance              73.9         10.7         5.0         21.2           13.2           3.5

   % G & A/Revenues                    3.0%         4.0%        4.2%         1.4%           2.8%          3.7%
   % O & M/Revenues                    6.5%         2.8%        6.9%         3.4%           2.9%          2.4%
   % (G&A & O&M) Revenues              9.5%         6.8%       11.1%         4.8%           5.7%          6.1%

   % G & A/Gross Margin               14.0%        22.2%       10.7%        12.9%          16.4%         31.7%
   % O & M/Gross Margin               29.8%        15.4%       17.4%        30.4%          16.7%         21.1%
   % (G&A & O&M)/Gross Margin         43.9%        37.6%       28.1%        43.3%          33.1%         52.8%
                                                                                          
1992
- ----
 Total Revenues                    $1,197.1       $430.9      $211.3       $928.4         $883.2        $184.2
 Gross Margin                         242.5         84.9        78.4         89.5          143.0          29.0
  General & Administrative             37.9         16.7         9.4         11.9           18.0           7.8
  Operation & Maintenance              80.4         18.2        12.6         25.2           36.8           5.4

   % G & A/Revenues                    3.2%         3.9%        4.5%         1.3%           2.0%          4.2%
   % O & M/Revenues                    6.7%         4.2%        5.9%         2.7%           4.2%          2.9%
   % (G&A & O&M)/Revenues              9.9%         8.1%       10.4%         4.0%           6.2%          7.2%
  
   % G & A/Gross Margin               15.6%        19.7%       12.0%        13.2%          12.6%         26.9%
   % O & M/Gross Margin               33.2%        21.4%       16.0%        28.1%          25.7%         18.6%
   % (G&A & O&M)/Gross Margin         48.8%        41.1%       28.1%        41.4%          38.3%         45.5%

Three-Year Average (1990-1992)
- -------------------------------
   % G & A/Revenues                    3.4%         3.7%        7.3%         1.5%           2.7%          4.0%
   % O & M/Revenues                    6.5%         3.2%        7.9%         3.4%           3.4%          2.8%
   % (G&A & O&M)/Revenues              9.9%         7.0%       15.2%         4.8%           6.1%          6.7%

   % G & A/Gross Margin               15.4%        22.1%       18.0%        13.0%          14.7%         27.9%
   % O & M/Gross Margin               30.2%        18.7%       19.8%        29.9%          19.3%         19.3%
   % (G&A & O&M)/Gross Margin         45.6%        40.7%       37.8%        42.9%          34.0%         47.2%



</TABLE>  

<TABLE>
<CAPTION>                                                                            
                                                                                                     Excludes VLP
                                                                                    ----------------------------------------------
                                                                                       Broad Peer Group       Stand-alone Group(e)
                                     Trident NGL          USX -      Western Gas    ------------------------  --------------------
                                   Holding, Inc.(d)   Delhi Group    Resources(c)     Mean         Median       Mean     Median
                                   ---------------    -----------    ------------   ---------      ------     ------     ---------

<S>                                    <C>              <C>            <C>           <C>            <C>        <C>       <C>
1990                                                                                               
- ----                                                                                              
 Total Revenues                        $669.9           $405.2         $255.7       
 Gross Margin                              NA            127.9           76.6        
  General & Administrative               18.1             31.5           13.5        
  Operation & Maintenance                  NA             25.2           20.4        
                                                                                                     
   % G & A/Revenues                      2.7%             7.8%           5.3%         5.1%           3.6%       3.3%      3.2% 
   % O & M/Revenues                        NA             6.2%           8.0%         5.4%           4.0%       4.1%      3.2%
   % (G&A & O&M) Revenues                  NA            14.0%          13.3%        10.9%           6.9%       7.6%      6.3%
  
   % G & A/Gross Margin                    NA            24.6%          17.6%        21.5%          24.3%      10.0%     17.6%
   % O & M/Gross Margin                    NA            19.7%          26.7%        22.4%          19.7%      22.2%     19.3%
   % (G&A & O&M) Gross Margin              NA            44.3%          44.3%        43.9%          44.1%      41.2%     43.6%
  
1991
- ----
 Total Revenues                        $575.3           $423.2         $358.2
 Gross Margin                              NA            139.3          114.5
  General & Administrative               16.3             29.3           14.7
  Operation & Maintenance                  NA             31.0           32.1
                                   
   % G & A/Revenues                      2.8%             6.9%           4.1%         3.8%           3.9%       3.2%      3.3%
   % O & M/Revenues                        NA             7.3%           9.0%         5.0%           3.4%       4.1%      2.9%      
   % (G&A & O&M) Revenues                  NA            14.2%          13.1%         8.8%           6.8%       7.3%      6.1%
                                   
   % G & A/Gross Margin                    NA            21.0%          12.8%        18.3%          16.4%      19.2%     16.4%
   % O & M/Gross Margin                    NA            22.3%          28.1%        21.6%          21.1%      22.3%     21.1%
   % (G&A & O&M)/Gross Margin              NA            43.3%          40.9%        39.9%          40.9%      41.5%     40.9%
                                   
1992                               
- ----                               
 Total Revenues                        $601.6           $457.8         $741.8
 Gross Margin                              NA            137.9          256.4
  General & Administrative               15.6             28.8           23.9
  Operation & Maintenance                  NA             29.1           72.6
                                   
   % G & A/Revenues                      2.6%             6.3%           3.2%         3.5%           3.6%       2.9%      2.9%
   % O & M/Revenues                        NA             6.4%           9.8%         5.2%           4.2%       4.8%      4.2%
   % (G&A & O&M)/Revenues                  NA            12.6%          13.0%         8.8%           8.1%       7.7%      7.2%
                                   
   % G & A/Gross Margin                    NA            20.9%           9.3%        16.4%          13.2%      16.4%     13.2%
   % O & M/Gross Margin                    NA            21.1%          28.3%        24.8%          21.4%      24.4%     25.7%
   % (G&A & O&M)/Gross Margin              NA            42.0%          37.6%        39.1%          41.1%      40.8%     41.1%
                                   
Three-Year Average (1990-1992)     
- -------------------------------    
   % G & A/Revenues                      2.7%             7.0%           4.2%         4.1%           3.9%       3.1%      3.2%
   % O & M/Revenues                        NA             6.6%           8.9%         5.2%           3.4%       4.3%      3.4%
   % (G&A & O&M)/Revenues                  NA            13.6%          13.1%         9.5%           7.0%       7.5%      6.7%
                                   
   % G & A/Gross Margin                    NA            22.2%          13.3%        18.7%          18.0%      18.2%     14.7%
   % O & M/Gross Margin                    NA            21.0%          27.7%        22.2%          22.2%      23.0%     19.3%
   % (G&A & O&M)/Gross Margin              NA            43.2%          41.0%        41.0%          41.0%      41.2%     41.0%
                                                 
</TABLE>  
          


Note: Gross Margin defined as Total Revenues less gas/product purchases
 (a) G&A was provided from a schedule prepared by the Company and reflects the
      percentage (32%) of reported operating expenses which is attributable.
 (b) 1992 - Pro forma EGSI acquisition
 (c) 1992 - Pro forma for Mountain Gas and Black Lake Acquisitions
 (d) 1991 and 1992 - Based on Pro forma financials for the acquisition of the
     NGL business of OXY USA. Gross Margin as defined is not disclosed (i.e.,
     separate line items for O&M and COGS).
 (e) Excludes AQP and DGP from broad peer group.
<PAGE>   59
            Operational Comparison for Selected Comparable Companies

                 Selected Pipeline Master Limited Partnerships

                            (Figures in $ Millions)

<TABLE>
<CAPTION>
                                                               Lake-      Santa 
                      Valero                 Enron   Kaneb     head         Fe                         Excludes VLP
                    Natural Gas  Buckeye     Liq-    Pipe      Pipe        Pipe     TEPPCO     --------------------------------
                    Partnership  Partners   uids(b)  Line      Line        Line   Partners(c)  Mean    Median     High     Low 
                    -----------  --------   -------  -----     -----      -----   -----------  ----    ------     ----     ----
<S>                  <C>         <C>        <C>       <C>      <C>        <C>        <C>       <C>     <C>       <C>       <C>
1990
- ----
 Total Revenues      $1,091.5    $159.3     $47.6     $37.6    $205.7     $192.9     $140.8
 Gross Margin           256.3      85.0      19.8      25.0        NA      129.6       73.0
  General &        
   Administration        42.6      10.9       7.4       2.9        NA       16.6         NA
  Operation &      
   Maintenance           70.4      74.5      27.8      12.6        NA       63.3       67.8

   % G & A/Revenues       3.9%      6.8%     15.6%      7.8%       NA        8.6%        NA     9.7%    8.2%     15.6%      6.8%
   % O & M/Revenues       6.5%     46.8%     58.5%     33.5%       NA       32.8%      48.2%   43.9%   46.8%     58.5%     32.8%
   % (G&A & O&M)/   
    Revenues             10.4%     53.6%     74.0%     41.2%       NA       41.4%      48.2%   51.7%   48.2%     74.0%     41.2%

   % G & A/Gross        
    Margin               16.6%     12.8%     37.4%     11.7%       NA       12.8%        NA    18.7%   12.8%     37.4%     11.7%

1991
- ----             
 Total Revenues      $1,144.0    $151.8     $25.6     $39.4    $199.3     $193.4     $163.3
 Gross Margin           247.7      78.9      16.9      25.1        NA      127.8       82.2
  General &    
   Administration        34.8      10.3       2.8       2.9        NA       18.2         NA
  Operation &       
   Maintenance           73.9      73.0      16.9      14.3        NA       65.7       81.1

   % G & A/Revenues       3.0%      6.8%     11.1%      7.3%       NA        9.4%        NA     8.6%    8.3%     11.1%      6.8%
   % O & M/Revenues       6.5%     48.1%     66.1%     36.4%       NA       33.9%      49.7%   46.8%   48.1%     66.1%     33.9%
   % (G&A & O&M)/   
    Revenues              9.5%     54.9%     77.2%     43.6%       NA       43.3%      49.7%   53.7%   49.7%     77.2%     43.3%
                     
   % G & A/Gross 
    Margin               14.0%     13.1%     16.8%     11.4%       NA       14.2%        NA    13.9%   13.7%     16.8%     11.4%

1992
- ----     
 Total Revenues      $1,197.1    $163.1     $23.4     $42.2    $222.2     $205.0     $166.2
 Gross Margin           242.5      84.0      14.4      27.7        NA      136.7       90.9
  General &                
   Administration        37.9      10.0       2.7       2.8        NA       19.4         NA
  Operation &        
   Maintenance           80.4      79.1       9.0      14.5        NA       68.3       75.3

   % G & A/Revenues       3.2%      6.1%     11.7%      6.5%       NA        9.5%        NA     8.4%    8.0%     11.7%      6.1%
   % O & M/Revenues       6.7%     48.5%     38.4%     34.4%       NA       33.3%      45.3%   40.0%   38.4%     48.5%     33.3%
   % (G&A & O&M)/  
    Revenues              9.9%     54.6%     50.1%     40.9%       NA       42.8%      45.3%   46.7%   45.3%     54.6%     40.9%
            
   % G & A/Gross            
    Margin               15.6%     11.9%     18.9%      9.9%       NA       14.2%        NA    13.7%   13.0%     18.9%      9.9%
                     
Three-Year Average
- ------------------
 (1990-1992)
 -----------  
   % G & A/Revenues       3.4%      6.6%     12.8%      7.2%       NA        9.2%        NA     8.9%    8.2%     12.8%      6.6%
   % O & M/Revenues       6.5%     47.8%     54.3%     34.7%       NA       33.4%      47.7%   43.6%   47.7%     54.3%     33.4%
   % (G&A & O&M)/    
    Revenues              9.9%     54.4%     67.1%     41.9%       NA       42.5%      47.7%   50.7%   47.7%     67.1%     41.9%
              
   % G & A/Gross           
    Margin               15.4%     12.6%     24.4%     11.0%       NA       13.7%        NA    15.4%   13.2%     24.4%     11.0%
</TABLE>


Note: Gross Margin defined as Total Revenues less O&M Expenses

  (a) G&A was provided from a schedule prepared by the Company and reflects the
      percentage (32%) of reported operating expenses which is attributable.
  (b) 1991 and 1992 figures are for 5 months only. 1990 data based on corporate
      form financials (Partnership is not available).
  (c) 1990 figures for the period beginning March 7, 1990, (Inception date)
  (d) G&A figures are not itemized, only aggregate operating expenses.
<PAGE>   60

Dillon, Read & Co. Inc.                    December 3, 1993
- -----------------------------------------------------------


          COMPARISON OF CURRENT AND HISTORICAL VLP
                        PROJECTIONS


        (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED)



<PAGE>   61

Dillon, Read & Co. Inc.                                     December 10, 1993
- -----------------------------------------------------------------------------


                             VLP OPERATING STATISTICS

                   (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED)
- -----------------------------------------------------------------------------



<PAGE>   62

Dillon, Read & Co. Inc.                                       December 10, 1993
- -------------------------------------------------------------------------------

                        STOCK PRICE PERFORMANCE OF PEER GROUP

- -------------------------------------------------------------------------------
Valero Natural Gas Company

<PAGE>   63
                      VALERO NATURAL GAS PARTNERS, L.P.
                           STOCK PRICES PERFORMANCE
                     For the Period: 10/23/92 - 12/08/93

<TABLE>
<CAPTION>
                  VLP            S&P 400         Peers*        Industry**        MLPs***
                --------        --------        --------       ----------       --------
<S>             <C>             <C>             <C>             <C>             <C>     
10/23/92        1               1               1               1               1
11/10/92        0.936709        1.023996        1.059192        1.04856         0.969542
11/26/92        0.911392        1.026213        0.931244        0.94548         0.934043
12/14/92        0.860759        1.052426        0.985861        0.984951        0.943515
12/30/92        0.822785        1.073748        0.959993        0.958114        0.923006
01/15/93        0.873418        1.054969        0.942104        0.946829        0.944563
02/02/93        0.873418        1.052491        0.90133         0.91536         0.982783
02/18/93        0.848101        1.072966        0.984862        0.996892        0.993642
03/08/93        0.860759        1.059207        1.078251        1.093568        1.028676
03/24/93        0.873418        1.084703        1.130838        1.148871        1.032327
04/09/93        0.848101        1.080203        1.246076        1.259517        1.03453
04/27/93        0.810127        1.060968        1.217648        1.270559        1.071762
05/13/93        0.860759        1.062141        1.188398        1.27754         1.017296
05/31/93        0.810127        1.08868         1.201912        1.309643        1.00997
06/16/93        0.822785        1.081377        1.283488        1.395191        1.016276
07/02/93        0.835443        1.058751        1.264418        1.428642        1.023958
07/20/93        0.835443        1.063054        1.300116        1.477261        1.038015
08/05/93        0.835443        1.060576        1.26581         1.411721        1.033891
08/23/93        0.911392        1.056599        1.308966        1.500397        1.053279
09/08/93        0.936709        1.091158        1.47332         1.707904        1.075232
09/24/93        0.898734        1.084181        1.414353        1.671953        1.081458
10/12/93        0.936709        1.084116        1.536779        1.760843        1.100873
10/28/93        1.101266        1.108829        1.462285        1.69714         1.142811
11/15/93        1.101266        1.101461        1.175143        1.463409        1.101997
12/01/93        1.101266        1.112415        0.914725        1.242504        1.109423
</TABLE>


  *  Companies included are AQP, NGA, NGL, and WGR.
 **  Companies included are AOG, AQP, NGA, TEJ, TPC, NGL, DGP, and WGR.
***  MLPs included are BPL, ENP, KPP, LHP, SFL, and TPP.

<PAGE>   64
                      VALERO NATURAL GAS PARTNERS, L.P.
                           STOCK PRICE PERFORMANCE
                     For the Period: 10/12/90 - 12/08/93

<TABLE>
<CAPTION>
                   VLP           S&P 400         Peers *       Industry **      MLPs ***
                   ---           -------         -------       -----------      --------
<S>             <C>             <C>             <C>             <C>             <C>
10/12/90        1               1               1               1               1
11/28/90        0.969466        1.060628        1.033436        0.98739         1.069781
01/14/91        0.877863        1.042937        0.892214        0.851806        1.050462
02/28/91        0.908397        1.237443        0.979673        0.97413         1.184152
04/16/91        0.916031        1.308205        1.146117        1.053174        1.191095
05/31/91        0.664122        1.322695        1.119215        1.056128        1.20906
07/17/91        0.70229         1.293448        1.072506        0.985771        1.181802
09/02/91        0.725191        1.338608        1.249605        1.113483        1.243743
10/17/91        0.732824        1.320384        1.299455        1.162923        1.358097
12/03/91        0.671756        1.277358        1.285463        1.147021        1.283528
01/17/92        0.633588        1.417104        1.296832        1.159647        1.252117
03/04/92        0.59542         1.385901        1.06284         1.024348        1.245208
04/20/92        0.564885        1.386968        1.029366        0.975812        1.263904
06/04/92        0.519084        1.392657        1.268932        1.201403        1.309685
07/21/92        0.48855         1.381456        1.341882        1.247678        1.365571
09/04/92        0.534351        1.396746        1.594871        1.452554        1.397206
10/21/92        0.572519        1.385812        1.699551        1.491976        1.436755
12/07/92        0.519084        1.453285        1.610238        1.438518        1.364123
01/21/93        0.503817        1.432572        1.492016        1.342056        1.402197
03/09/93        0.519084        1.487066        1.888595        1.687994        1.496106
04/23/93        0.496183        1.419415        1.873314        1.726266        1.531586
06/09/93        0.480916        1.465019        2.068359        2.020038        1.472424
07/26/93        0.503817        1.449018        2.077981        2.057571        1.508866
09/09/93        0.564885        1.465464        2.411254        2.467116        1.561498
10/25/93        0.656489        1.509912        1.935552        2.177457        1.641056
</TABLE>


  *  Companies included are AQP, NGA, NGL, and WGR.
 **  Companies included are AOG, AQP, NGA, TEJ, TPC, NGL, DGP, and WGR.
***  MLPs included are BPL, ENP, KPP, LHP, SFL, and TPP.

<PAGE>   65
                      VALERO NATURAL GAS PARTNERS, L.P.
                            STOCK PRICE PERFORMANCE
                      For the Period: 9/30/88 - 12/08/93

<TABLE>
<CAPTION>
                  VLP           S&P 400          Peers *       Industry **      MLPs ***
                  ---           -------          -------       -----------      --------
<S>             <C>             <C>             <C>             <C>             <C>
09/30/88        1               1               1               1               1
12/16/88        0.890511        1.022561        1.0875          0.970093        0.986552
03/03/89        1.080292        1.079214        0.9625          1.116814        1.101541
05/19/89        1.080292        1.183195        1.3875          1.381779        1.070939
08/04/89        1.080292        1.261406        1.8             1.679114        1.158955
10/20/89        0.970803        1.271633        1.65            1.58475         1.115134
01/05/90        1.021898        1.296902        1.538926        1.701113        1.227915
03/23/90        0.89781         1.25569         1.343305        1.515271        1.100374
06/08/90        0.839416        1.339416        1.51845         1.653577        1.059441
08/24/90        0.963504        1.183195        1.678329        1.84673         1.07633
11/09/90        0.970803        1.177981        1.814385        1.968865        1.02305
01/25/91        0.927007        1.272536        1.455402        1.549658        1.0666
04/12/91        0.868613        1.447508        1.923598        1.928409        1.143876
06/28/91        0.635036        1.41843         1.664228        1.735987        1.174892
09/13/91        0.671533        1.458839        2.06927         2.044154        1.280516
11/29/91        0.635036        1.419533        2.172711        2.142627        1.286218
02/14/92        0.576642        1.575454        2.029547        2.065627        1.229072
05/01/92        0.525547        1.569437        1.925941        1.975822        1.253995
07/17/92        0.467153        1.56673         2.296608        2.332987        1.354395
10/02/92        0.489051        1.542866        2.891619        2.814437        1.42303
12/18/92        0.481752        1.654868        2.728085        2.656323        1.330492
03/05/93        0.49635         1.646947        3.194961        3.133054        1.486856
05/21/93        0.467153        1.656874        3.349397        3.550843        1.4617
08/06/93        0.540146        1.628296        3.567015        3.997985        1.509272
10/22/93        0.627737        1.696681        3.404723        4.139219        1.648601
</TABLE>


  *  Companies included are AQP, NGA, NGL, and WGR.
 **  Companies included are AOG, AQP, NGA, TEJ, TPC, NGL, DGP, and WGR.
***  MLPs included are BPL, ENP, KPP, LHP, SFL, and TPP.

<PAGE>   66
                      VALERO NATURAL GAS PARTNERS, L.P.
                           STOCK PRICE PERFORMANCE
                      For the Period: 3/18/87 - 12/08/93

<TABLE>
<CAPTION>
                  VLP           S&P 400                Industry *       MLPs **
                  ---           -------                ----------       -------
<S>             <C>             <C>                     <C>             <C>
03/18/87        1               1                       1               1
06/25/87        0.978022        1.067797                1.263158        0.945355
10/02/87        1.131868        1.142205                1.438596        1.076503
01/11/88        0.901099        0.852486                0.947368        0.928962
04/19/88        0.862637        0.895511                0.964912        0.961749
07/27/88        0.807692        0.903427                1.122807        0.918033
11/03/88        0.71978         0.958093                1.107738        0.934426
02/10/89        0.774725        1.005029                1.220818        0.98282
05/22/89        0.802198        1.099925                1.687633        0.963032
08/29/89        0.78022         1.195195                1.932749        1.038251
12/06/89        0.675824        1.18821                 2.065725        1.042762
03/15/90        0.686813        1.165953                1.881918        1.010886
06/22/90        0.637363        1.242969                1.910756        0.982835
10/01/90        0.708791        1.104209                2.378487        0.983344
01/08/91        0.642857        1.100112                1.950587        0.952459
04/17/91        0.653846        1.380145                2.37566         1.078573
07/25/91        0.532967        1.352952                2.223315        1.077275
11/01/91        0.56044         1.37521                 2.562297        1.192186
02/10/92        0.43956         1.467685                2.417933        1.119252
05/19/92        0.379121        1.465543                2.349315        1.154066
08/26/92        0.357143        1.448314                3.000706        1.262025
12/03/92        0.373626        1.503073                3.152851        1.230044
03/12/93        0.368132        1.54228                 3.69734         1.349789
06/21/93        0.340659        1.527752                4.485644        1.33075
09/28/93        0.395604        1.546843                5.52025         1.41375
</TABLE>


 *  Companies included are AOG, AQP, NGA, TEJ, TPC, NGL, DGP, and WGR.
**  MLPs included are BPL, ENP, KPP, LHP, SFL, and TPP.

<PAGE>   67
                      VALERO NATURAL GAS PARTNERS, L.P.
                      ANALYSIS OF HISTORICAL P/E RATIOS

<TABLE>
<CAPTION>
          VLP     AOG     NGA     TEJ     TPC     WGR
          ---     ---     ---     ---     ---     ---
                 (price/LTM earnings per share)
<S>       <C>     <C>     <C>     <C>     <C>     <C>
12/90     5.5             21.6    15.8
 3/91     5.5     21.5    24      21.4
 6/91     4       12.9    20.7    21.7
 9/91     5.7     17.8    29.9    22.1            15.4
12/91     4.9     15.3    37.7    17.1            21.1
 3/92     5.5     16.2    30.2    20.8            16.5
 6/92     4.6     15      28.6    21.6    30.4    18.2
 9/92     4.2     20      31.2    22.1    29.6    23.8
12/92     6.5     17      24.7    19.3    28.2    18.2
 3/93     6       19.8    25.6    27.8    26.3    23.6
 6/93     5.7     24.3    23      37.4    28.4    23.5
 9/93     9.8     33.2    23.7    42.2    32.3    31.8
</TABLE>












<PAGE>   68

Dillon Read & Co. Inc.                                         December 10, 1993
- --------------------------------------------------------------------------------

                       HISTORICAL PRODUCT PRICE PERFORMANCE

- --------------------------------------------------------------------------------
Valero Natural Gas Company

<PAGE>   69
                          COMMODITY PRICE MOVEMENTS
                    FOR PERIOD: JULY, 1985 - OCTOBER, 1993

<TABLE>
<CAPTION>
                           West Texas
                          Intermediate
            VLP Slate        Crude         Natural Gas
            ---------     ------------     -----------
<S>         <C>             <C>             <C>       
Jul-85      1               1               1         
Nov-85      1.382694        1               0.845528  
Mar-86      0.707553        0.669643        0.792683  
Jul-86      0.619724        0.5             0.597561  
Nov-86      0.658934        0.508929        0.577236  
Mar-87      0.73037         0.625           0.605691  
Jul-87      0.732703        0.660714        0.544715  
Nov-87      0.707392        0.678571        0.581301  
Mar-88      0.704875        0.571429        0.691057  
Jul-88      0.666447        0.544643        0.565041  
Nov-88      0.742609        0.455357        0.719512  
Mar-89      0.695427        0.616071        0.565041  
Jul-89      0.6156          0.696429        0.617886  
Nov-89      0.61379         0.678571        0.666667  
Mar-90      0.680832        0.75            0.577236  
Jul-90      0.738747        0.580357        0.54878   
Nov-90      1.506909        1.214286        0.784553  
Mar-91      0.693992        0.633929        0.512195  
Jul-91      0.914767        0.696429        0.434959  
Nov-91      1.22383         0.776786        0.682927  
Mar-92      0.88218         0.616071        0.47561   
Jul-92      1.053504        0.75            0.577236  
Nov-92      1.014443        0.705357        0.894309  
Mar-93      1.014539        0.714286        0.747967  
Jul-93      0.888488        0.642857        0.756098  
</TABLE>

<PAGE>   70
                          COMMODITY PRICE MOVEMENTS
                    FOR PERIOD: JULY, 1985 - OCTOBER, 1993

<TABLE>
<CAPTION>
           VLP Slate   
           ---------   
<S>        <C>         
Jul-85     33.8905     
Nov-85     45.842      
Mar-86     23.024      
Jul-86     19.6215     
Nov-86     20.963      
Mar-87     24.596      
Jul-87     25.3285     
Nov-87     24.4025     
Mar-88     23.593      
Jul-88     21.4985     
Nov-88     22.711      
Mar-89     23.2365     
Jul-89     21.096      
Nov-89     21.076      
Mar-90     23.7855     
Jul-90     24.6215     
Nov-90     48.696      
Mar-91     24.352      
Jul-91     30.383      
Nov-91     38.879      
Mar-92     28.8515     
Jul-92     33.93       
Nov-92     32.316      
Mar-93     32.559      
Jul-93     28.7535     
</TABLE>
<PAGE>   71
                          COMMODITY PRICE MOVEMENTS
                    FOR PERIOD: JULY, 1985 - OCTOBER, 1993

<TABLE>
<CAPTION>
             C2        C3       N-C4      I-C4       C5+
            -----     -----     -----     -----     -----
<S>         <C>       <C>       <C>       <C>       <C>
Jul-85      21.5      34.25     47.25     52.75     59.5
Nov-85      31.25     46.25     67.5      73        69
Mar-86      16.25     25.5      28.75     32.5      33
Jul-86      15.5      20.25     23.25     28.75     25.25
Nov-86      17        19        26.5      29        32
Mar-87      16.25     23.25     38.25     40.75     40.5
Jul-87      15        25        37.5      45.25     44.5
Nov-87      14.25     25.25     38        41.25     41.5
Mar-88      15.5      24.25     33.5      36.75     38
Jul-88      16.75     19.5      25.75     30.75     35.5
Nov-88      21        19.5      24.75     26.75     33
Mar-89      16.25     21        26.75     35.75     44.5
Jul-89      13.25     20        26.5      34.75     41
Nov-89      12.75     21.25     29.75     34.25     38.25
Mar-90      13.5      23.75     31.25     46.75     42.5
Jul-90      16        27.25     31        37.5      38.5
Nov-90      36.75     47.75     63.75     65.25     76.5
Mar-91      13        27        32        40        46
Jul-91      20.5      31.5      40.25     45.75     49
Nov-91      29.75     43        46.5      49.25     52.25
Mar-92      20.75     29        36        44.5      44.25
Jul-92      25.75     33.75     40        52        49.25
Nov-92      25.25     32.75     40        42.5      46.75
Mar-93      24.5      34.25     41        45.25     45.5
Jul-93      20.75     31.5      36.5      39.5      40.75
</TABLE>
<PAGE>   72
                          COMMODITY PRICE MOVEMENTS
                    FOR PERIOD: JULY, 1985 - OCTOBER, 1993

<TABLE>
<CAPTION>
                C2              C3             N-C4            I-C4            C5+
             --------        --------        --------        --------        --------
<S>          <C>             <C>             <C>             <C>             <C>
Jul-85       1               1               1               1               1
Nov-85       1.453488        1.350365        1.428571        1.383886        1.159664
Mar-86       0.755814        0.744526        0.608466        0.616114        0.554622
Jul-86       0.72093         0.591241        0.492063        0.545024        0.42437
Nov-86       0.790698        0.554745        0.560847        0.549763        0.537815
Mar-87       0.755814        0.678832        0.809524        0.772512        0.680672
Jul-87       0.697674        0.729927        0.793651        0.85782         0.747899
Nov-87       0.662791        0.737226        0.804233        0.781991        0.697479
Mar-88       0.72093         0.708029        0.708995        0.696682        0.638655
Jul-88       0.77907         0.569343        0.544974        0.582938        0.596639
Nov-88       0.976744        0.569343        0.52381         0.507109        0.554622
Mar-89       0.755814        0.613139        0.566138        0.677725        0.747899
Jul-89       0.616279        0.583942        0.560847        0.658768        0.689076
Nov-89       0.593023        0.620438        0.62963         0.649289        0.642857
Mar-90       0.627907        0.693431        0.661376        0.886256        0.714286
Jul-90       0.744186        0.79562         0.656085        0.7109          0.647059
Nov-90       1.709302        1.394161        1.349206        1.236967        1.285714
Mar-91       0.604651        0.788321        0.677249        0.758294        0.773109
Jul-91       0.953488        0.919708        0.851852        0.867299        0.823529
Nov-91       1.383721        1.255474        0.984127        0.933649        0.878151
Mar-92       0.965116        0.846715        0.761905        0.843602        0.743697
Jul-92       1.197674        0.985401        0.846561        0.985782        0.827731
Nov-92       1.174419        0.956204        0.846561        0.805687        0.785714
Mar-93       1.139535        1               0.867725        0.85782         0.764706
Jul-93       0.965116        0.919708        0.772487        0.748815        0.684874
</TABLE>
<PAGE>   73


Dillon, Read & Co. Inc.                     December 3, 1993
- ------------------------------------------------------------


                SUMMARY FINANCIAL IMPACT ON VLO


- ------------------------------------------------------------
Valero Natural Gas Company










<PAGE>   74


Dillon, Read & Co. Inc.                                      12/10/93
- ---------------------------------------------------------------------

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy (a)

<TABLE>
<CAPTION>
                                              VEC           VLP         Adjustments       Pro Forma
                                          ----------     ---------      -----------      -----------
<S>                                       <C>            <C>            <C>              <C>
Balance Sheet:
- --------------
  Cash and Equivalents                       39.783         20.571          0.000            60.354
  Other Current Assets                      295.734        194.605        (51.957)          438.382
                                          ---------      ---------       --------         ---------
     Total Current Assets                   335.517        215.176        (51.957)          498.736
 
  Net Property, Plant & Equipment         1,258,348        741.472          9.935         2,009.755
  Investment in VLP                          26.555          0.000        (26.555)            0.000
  Investment in Leases                      105.439          0.000       (105.439)            0.000
  Other Investments                          28.438          0.000          0.000            28.438
  Other Assets                               65.043         79.834        (25.277)          119.600
                                          ---------      ---------       --------         ---------
      L-T Assets                          1,483.823        821.306       (147.336)        2,157.793
 
                                         ---------      ---------       --------         ---------
  Total Assets                            1,819.340      1,036.482       (199.293)        2,656.529
                                          =========      =========       ========         =========
  
  Short-Term Debt                            10.000          9.000          0.000            19.000
  Current Maturities of L-T Debt             16.452         28.885          0.000            45.337
  Current Lease Payments                      0.000          0.000          0.000             0.000
  Other Current Liabilities                 145.247        219.573        (52.910)          311.910
                                          ---------      ---------       --------         ---------
      Total Current Liabilities             171.699        257.458        (52.910)          376.247
                                                      
  Deferred Income Taxes                     251.074          0.000          0.000           251.074
  Other Deferred Credits                     39.043          4.105          9.901            53.049
                                          ---------      ---------       --------         ---------
      Other Liabilities                     290.117          4.105          9.901           304.123
                                                                    
  Long-Term Debt                            488.406        506.429         (9.669)          985.166
  Capital Lease Obligations                   0.000        103.832       (103.832)            0.000
  Redeemable Preferred Stock                 13.800          0.000          0.000            13.800
  Non-Redeemable Preferred Stock              0.000          0.000        121.875           121.875
  Common Equity                             855.318        164.658       (164.658)          855.318
                                          ---------      ---------       --------         ---------
      Total L-T Capitalization            1,357.524        774.919       (156.284)        1,976.159
                                          ---------      ---------       --------         ---------
  Total Liabilities & Equity              1,819.340      1,036.482       (199.293)        2,656.529
                                          =========      =========       ========         =========
  Total Debt  (b)                           528.658        648.146                        1,063.303
  Tot. Debt / Tot. L-T Cap. + S-T Debt        38.2%          79.7%                            52.1%

  EBITDA / Interest Incurred                    4.1x           1.8x                             3.0x
  CFFO / Interest Incurred                      3.2x           0.9x                             1.9x
  CFFO / Total Debt                           23.0%           7.0%                            14.2%
</TABLE>


- ---------------------
(a) Assumes a price per share of $11.00.
(b) Total Debt includes all debt, capital leases and redeemable preferred
    stock.

<PAGE>   75

Dillon, Read & Co. Inc.                                      12/10/93
- ---------------------------------------------------------------------

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy (a)

<TABLE>
<CAPTION>

                                                                                          Nine Months Ended 9/30/93
                                                                                -----------------------------------------------
                                                                                  VEC         VLP     Adjustments     Pro Forma
                                                                                -------     -------   -----------     ---------
<S>                                                                             <C>         <C>         <C>           <C>
Income Statement:
- -----------------

  Operating Revenues                                                            940.223     994.636     (213.914)     1,720.945
  Equity Investments                                                             20.528       0.000      (20.528)         0.000
                                                                                -------     -------     --------      ---------
    Total Revenues                                                              960.751     994.636     (234.442)     1,720.945

  Cost of Goods Sold                                                            712.481     811.603     (156.510)     1,367.574
  Operating Expenses                                                             92.649      90.788      (62.228)       121.209
  General & Administrative Expenses                                               0.000       0.000        0.000          0.000
                                                                                -------     -------     --------      ---------
   Operating Cash Flow/EBITDA                                                   155.621      92.245      (15.704)       232.162

  Depreciation & Amortization                                                    41.859      27.190       (0.742)        68.307
                                                                                -------     -------      -------      ---------
    Operating Income/EBIT                                                       113.762      65.055      (14.962)       163.855

  Other Income                                                                    0.000       1.029        0.000          1.029
  Extraordinary Gains / (Losses)                                                  7.245       0.000        0.220          7.465
  Capital Lease Interest Incurred                                                 0.000      (9.629)       9.629          0.000
  Other Interest Incurred(b)                                                    (37.640)    (41.208)       0.369        (78.479)
  Interest Capitalized                                                           11.915       1.206        0.000         13.121
                                                                                -------     -------      -------        -------
    Income Before Taxes                                                          95.282      16.453       (4.744)       106.991

  Income Tax Expense(c)                                                          43.700       0.000        4.100         47.800
                                                                                -------     -------      -------        -------
    Net Income                                                                   51.582      16.453       (8.845)        59.190

  Preferred Dividends                                                             0.953       0.000        6.094          7.047
                                                                                -------     -------      -------        -------
    Net Income to Common                                                         50.629      16.453      (14.938)        52.144

  Earnings Per Share                                                              $1.18       $0.86                       $1.21
     Weighted Average # of Shares                                                43.074      19.052                      43.074

Cash Flow Statement:
- --------------------

  Net Income                                                                     50.629      16.453      (14.938)        52.144

  Depreciation and Amortization                                                  41.859      27.190       (0.742)        68.307
  Deferred Income Taxes                                                          26.600       0.000        0.000         26.600
  Amortization of Deferred Charges                                               16.735       1.953        0.000         18.688
  Net (Gains) / Losses                                                           (7.842)      0.000       (0.220)        (8.062)
  Other Items                                                                    (6.478)      0.000        0.000         (6.478)
                                                                                -------     -------      -------        -------
     Cash Flow From Operations/CFFO                                              121.503      45.596      (15.900)       151.199

  Changes in Current Assets & Liabilities                                       (14.993)     (7.481)       0.000        (22.474)
  Changes in Other Assets & Liabilities                                          (6.273)      7.079        0.000          0.806
                                                                                -------     -------      -------        -------
    Cash Provided By Operations                                                 100.237      45.194      (15.900)       129.531

  CFFO Less Preferred Dividends                                                 120.550      45.596                     144.152
     Cash Flow Per Share                                                          $2.80       $2.39                       $3.35

</TABLE>

- --------------
(a)  Assumes a price per share of $11.00.
(b)  Assumes an effective interest rate of 5.1%.
(c)  Assumes a tax rate of 35.0%.

<PAGE>   76


Dillon, Read & Co. Inc.                                      12/10/93

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy(a)
<TABLE>
<CAPTION>
                                                           Nine Months Ended 9/30/93
                                                -----------------------------------------------
                                                  VEC        VLP      Adjustments     Pro Forma
                                                -------    --------   -----------     ---------
<S>                                             <C>         <C>         <C>           <C>
Income Statement:
- -----------------
  Operating Revenues                            940.223     994.636     (213.914)     1,720.945
  Equity Investments                             20.528       0.000      (20.528)         0.000
                                                -------     -------     --------      ---------
    Total Revenues                              960.751     994.636     (234.442)     1,720.945

  Cost of Goods Sold                            712.481     811.603     (156.510)     1,367.574
  Operating Expenses                             92.649      90.788      (62.228)       121.209
  General & Administrative Expenses               0.000       0.000        0.000          0.000
                                                -------     -------     --------      ---------
    Operating Cash Flow/EBITDA                  155.621      92.245      (15.704)       232.162 

  Depreciation & Amortization                    41.859      27.190       (0.256)        68.793
                                                -------     -------     --------      ---------
    Operating Income/EBIT                       113.762      65.055      (15.448)       163.369

  Other Income                                    0.000       1.029        0.000          1.029
  Extraordinary Gains/(Loss)                      7.245       0.000        0.220          7.465
  Capital Lease Interest Incurred                 0.000      (9.629)       9.629          0.000
  Other Interest Incurred(b)                    (37.640)    (41.208)      (0.372)       (79.220)
  Interest Capitalized                           11.915       1.206        0.000         13.121
                                                -------     -------     --------      ---------
    Income Before Taxes                          95.282      16.453       (5.971)       105.764

  Income Tax Expense(c)                          43.700       0.000        3.671         47.371
                                                -------     -------     --------      ---------
    Net Income                                   51.582      16.453       (9.642)        58.393

  Preferred Dividends                             0.953       0.000        6.094          7.047
                                               --------     -------     --------      ---------
    Net Income to Common                         50.629      16.453      (15.736)        51.346

  Earnings Per Share                              $1.18       $0.86                       $1.19
    Weighted Average # of Shares                 43.074      19.052                      43.074

Cash Flow Statement:
- --------------------
  Net Income                                     50.629      16.453      (15.736)        51.346

  Depreciation and Amortization                  41.859      27.190       (0.256)        68.793
  Deferred Income Taxes                          26.600       0.000        0.000         26.600
  Amortization of Deferred Charges               16.735       1.953        0.000         18.688
  Net (Gain)/Losses                             (7.842)      0.000       (0.220)        (8.062)
  Other Items                                    (6.478)      0.000        0.000         (6.478)
                                                -------     -------     --------      ----------
    Cash Flow From Operation/CFFO               121.503      45.596      (16.212)       150.887

  Changes in Current Assets & Liabilities       (14.993)     (7.481)       0.000        (22.474)
  Changes in Other Assets & Liabilities          (6.273)      7.079        0.000          0.806
                                                -------     -------     --------      ---------
    Cash Provided By Operations                 100.237      45.194      (16.212)       129.219

  CFFO Less Preferred Dividends                 120.550      45.596                     143.840
    Cash Flow Per Share                           $2.80       $2.39                       $3.34

</TABLE>

- ---------------
(a)  Assumes a price per share of $13.00.
(b)  Assumes an effective interest rate of 5.1%.
(c)  Assumes a tax rate of 35.0%.
<PAGE>   77


Dillon, Read & Co. Inc.                                         12/10/93
- ------------------------------------------------------------------------

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy(a)

<TABLE>
<CAPTION>                                                  
                                          VEC           VLP        Adjustments   Pro Forma
                                       ---------     ---------     -----------   ---------
<S>                                    <C>           <C>           <C>           <C>

Balance Sheet:

  Cash and Equivalents                    39.783        20.571        0.000         60.354
  Other Current Assets                   295.734       194.605      (51.957)       438.382
                                       ---------     ---------     ---------     ---------
    Total Current Assets                 335.517       215.176      (51.957)       498.736

  Net Property, Plant & Equipment      1,258.348       741.472        9.935      2,009.775
  Investment in VLP                       26.555         0.000      (26.555)         0.000
  Investment in Leases                   105.439         0.000     (105.439)         0.000
  Other Investments                       28.438         0.000        0.000         28.438
  Other Assets                            65.043        79.834       (5.853)       139.024
                                       ---------     ---------     --------      ---------
    L-T Assets                         1,483.823       821.306     (127.912)     2,177.217
                                       ---------     ---------     --------      ---------
  Total Assets                         1,819.340     1,036.482     (179.869)     2,675.953
                                       =========     =========     ========      =========

  Short-Term Debt                         10.000         9.000        0.000         19.000
  Current Maturities of L-T Debt          16.452        28.885        0.000         45.337
  Current Lease Payments                   0.000         0.000        0.000          0.000
  Other Current Liabilities              145.247       219.573      (52.910)       311.910
                                       ---------     ---------     --------      ---------
    Total Current Liabilities            171.699       257.458      (52.910)       376.247

  Deferred Income Taxes                  251.074         0.000        0.000        251.074
  Other Deferred Credits                  39.043         4.105        9.901         53.049
                                       ---------     ---------     --------      ---------
    Other Liabilities                    290.117         4.105        9.901        304.123

  Long-Term Debt                         488.406       506.429        9.755      1,004,590
  Capital Lease Obligations                0.000       103.832     (103.832)         0.000
  Redeemable Preferred Stock              13.800         0.000        0.000         13.800
  Non-Redeemable Preferred Stock           0.000         0.000      121.875        121.875
  Common Equity                          855.318       164.658     (164.658)       855.318
                                       ---------     ---------     --------      ---------
    Total L-T Capitalization           1,357.524       774.919     (136.860)     1,995.583
                                       ---------     ---------     --------      ---------
  Total Liabilities & Equity           1,819.340     1,036.482     (179.869)     2,675.953
                                       =========     =========     ========      =========

  Total Debt(b)                          528.658       648.146                   1,082.727
  Tot. Debt/Tot. L-T Cap.
    + S-T Debt                             38.2%         79.7%                       52.6%

  EBITDA/Interest Incurred                   4.1x          1.8x                        2.9x
  CFFO/Interest Incurred                     3.2x          0.9x                        1.9x
  CFFO/Total Debt                          23.0%          7.0%                       13.9%

</TABLE>

- --------------
(a) Assumes a price per share of $13.00.
(b) Total Debt includes all debt, capital leases and redeemable preferred stock.


<PAGE>   78


Dillon, Read & Co. Inc.                                      12/10/93

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy (a)

<TABLE>
<CAPTION>
                                               VEC           VLP       Adjustments    Pro Forma
                                           ----------    ----------    -----------    ---------
<S>                                        <C>           <C>            <C>           <C>
Balance Sheet:
- --------------
  Cash and Equivalents                         39.783        20.571        0.000         60.354
  Other Current Assets                        295.734       194.605      (51.957)       438.382
                                            ---------     ---------     --------      ---------
    Total Current Assets                      335.517       215.176      (51.957)       498.736

  Net Property, Plant & Equipment           1,258.348       741.472        9.935      2,009.755
  Investment in VLP                            26.555         0.000      (26.555)         0.000
  Investment in Leases                        105.439         0.000     (105.439)         0.000
  Other Investments                            28.438         0.000        0.000         28.438
  Other Assets                                 65.043        79.834       11.143        156.020
                                            ---------     ---------     --------      ---------
    L-T Assets                              1,483.823       821.306     (110.916)     2,194.213
                                            ---------     ---------     --------      ---------

  Total Assets                              1,819,340     1,036,482     (162.873)     2,692,949
                                            =========     =========     ========      =========

  Short-Term Debt                              10.000         9.000        0.000         19.000
  Current Maturities of L-T Debt               16.452        28.885        0.000         45.337
  Current Lease Payments                        0.000         0.000        0.000          0.000
  Other Current Liabilities                   145.247       219.573      (52.910)       311.910
                                            ---------     ---------     --------      ---------
    Total Current Liabilitie                  171.699       257.458      (52.910)       376.247

  Deferred Income Taxes                       251.074         0.000        0.000        251.074
  Other Deferred Credits                       39.043         4.105        9.901         53.049
                                            ---------    ----------     --------      ---------
    Other Liabilities                         290.117         4.105        9.901        304.123

  Long-Term Debt                              488.406       506.429       26.751      1,021.586
  Capital Lease Obligations                     0.000       103.832     (103.832)         0.000
  Redeemable Preferred Stock                   13.800         0.000        0.000         13.800
  Non-Redeemable Preferred Stock                0.000         0.000      121.875        121.875
  Common Equity                               855.318       164.658     (164.658)       855.318
                                            ---------    ----------     --------      ---------
    Total L-T Capitalization                1,357.524       774.919     (119.864)     2,012.569

                                            ---------     ---------     --------      ---------
 Total Liabilities & Equity                 1,819.340     1,036.482     (162.873)     2,692.579
                                            =========     =========     ========      =========

  Total Debt(b)                               528.658       648.146                   1,099,723
  Tot. Debt/Tot. L-T Cap. + S-T Debt            38.2%         79.7%                       52.9% 

  EBITDA/Interest Incurred                        4.1x          1.8x                        2.9x
  CFFO/Interest Incurred                          3.2x          0.9x                        1.9x
  CFFO/Total Debt                               23.0%          7.0%                       13.7%
</TABLE>


- ---------------
(a)  Assumes a price per share of $14.75.
(b)  Total Debt includes all debt, capital leases and redeemable preferred
     stock.


<PAGE>   79


Dillon, Read & Co. Inc.                                      12/10/93
- ---------------------------------------------------------------------

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy (a)


<TABLE>
<CAPTION>
                                                               Nine Months Ended 9/30/93
                                                -------------------------------------------------------
                                                  VEC             VLP         Adjustments     Pro Forma
                                                -------         -------       -----------     ---------
<S>                                             <C>             <C>           <C>             <C>
Income Statement:
- -----------------
  Operating Revenues                            940.223         994.636        (213.914)      1,720.945
  Equity Investments                             20.528           0.000         (20.528)          0.000
                                                -------         -------        --------       ---------
    Total Revenues                              960.751         994.636        (234.442)      1,720.945

  Cost of Goods Sold                            712.481         811.603        (156.510)      1,367.574
  Operating Expenses                             92.649          90.788         (62.228)        121.209
  General & Administrative Expenses               0.000           0.000           0.000           0.000
                                                -------         -------        --------       ---------
    Operating Cash Flow/EBITDA                  155.621          92.245         (15.704)        232.162
                                                                       
  Depreciation & Amortization                    41.859          27.190           0.169          69.218
                                                -------         -------        --------       ---------
    Operating Income/EBIT                       113.762          65.055         (15.873)        162.944

  Other Income                                    0.000           1.029           0.000           1.029
  Extraordinary Gains/(Loss)                      7.245           0.000           0.220           7.465
  Capital Lease Interest Incurred                 0.000          (9.629)          9.629           0.000
  Other Interest Incurred(b)                    (37.640)        (41.208)         (1.021)        (79.869)
  Interest Capitalized                           11.915           1.206           0.000          13.121
                                                -------         -------        --------       ---------
    Income Before Taxes                          95.282          16.453          (7.045)        104.690

  Income Tax Expense(c)                          43.700           0.000           3.295          46.995
                                                -------         -------        --------       ---------
    Net Income                                   51.582          16.453         (10.340)         57.695
                                       
  Preferred Dividends                             0.953           0.000           6.094           7.047
                                                -------         -------        --------       ---------
    Net Income to Common                         50.629          16.453         (16.433)         50.649

  Earnings Per Share                              $1.18           $0.86                           $1.18
    Weighted Average # of Shares                 43.074          19.052                          43.074

Cash Flow Statement:
- --------------------
  Net Income                                     50.629          16.453         (16.433)         50.649

  Depreciation and Amortization                  41.859          27.190           0.169          69.218
  Deferred Income Taxes                          26.600           0.000           0.000          26.600
  Amortization of Deferred Charges               16.735           1.953           0.000          18.688
  Net (Gains)/Losses                             (7.842)          0.000          (0.220)         (8.062)
  Other Items                                    (6.478)          0.000           0.000          (6.478)
                                                -------         -------        --------       ---------
    Cash Flow From Operations/CFFO              121.503          45.596         (16.485)        150.614

  Changes in Current Assets & Liabilities       (14.993)         (7.481)          0.000         (22.474)
  Changes in Other Assets & Liabilities          (6.273)          7.079           0.000           0.806
                                                -------         -------        --------       ---------
    Cash Provided By Operations                 100.237          45.194         (16.485)        128.946

  CFFO Less Preferred Dividends                 120.550          45.596                         143.568
    Cash Flow Per Share                           $2.80           $2.39                           $3.33

</TABLE>


- -----------------
(a)   Assumes a price per share of $14.75.
(b)   Assumes an effective interest rate of 5.1%.
(c)   Assumes a tax rate of 35.0%.

<PAGE>   80
Dillon, Read & Co. Inc.                                              12/10/93

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy(a)

<TABLE>
<CAPTION>
                                          VEC               VLP          Adjustments         Pro Forma
                                       ---------         ---------       -----------         ---------
<S>                                   <C>               <C>               <C>               <C>
Balance Sheet:
- --------------
  Cash and Equivalents                    39.783            20.571            0.000             60.354
  Other Current Assets                   295.734           194.605          (51.957)           438.382
                                       ---------         ---------         --------          ---------
    Total Current Assets                 335.517           215.176          (51.957)           498.736

  Net Property, Plant & Equipment      1,258.348           741.472            9.935          2,009.755
  Investment in VLP                       26.555             0.000          (26.555)             0.000
  Investment in Leases                   105.439             0.000         (105.439)             0.000
  Other Investments                       28.438             0.000            0.000             28.438
  Other Assets                            65.043            79.834           23.283            168.160
                                       ---------         ---------         --------          ---------
    L-T Assets                         1,483.823           821.306          (98.776)         2,206.353
                                       ---------         ---------         --------          ---------
  Total Assets                         1,819.340         1,036.482         (150.733)         2,705.089
                                       =========         =========         ========          =========
  Short-Term Debt                         10.000             9.000            0.000             19.000
  Current Maturities of L-T Debt          16.452            28.885            0.000             45.337
  Current Lease Payments                   0.000             0.000            0.000              0.000
  Other Current Liabilities              145.247           219.573          (52.910)           311.910
                                       ---------         ---------         --------          ---------
    Total Current Liabilities            171.699           257.458          (52.910)           376.247

  Deferred Income Taxes                  251.074             0.000            0.000            251.074
  Other Deferred Credits                  39.043             4.105            9.901             53.049
                                       ---------         ---------         --------          ---------
    Other Liabilities                    290.117             4.105            9.901            304.123

  Long-Term Debt                         488.406           506.429           38.891          1,033.726
  Capital Lease Obligations                0.000           103.832         (103.832)             0.000
  Redeemable Preferred Stock              13.800             0.000            0.000             13.800
  Non-Redeemable Preferred Stock           0.000             0.000          121.875            121.875
  Common Equity                          855.318           164.658         (164.658)           855.318
                                       ---------         ---------         --------          ---------
    Total L-T Capitalization           1,357.524           774.919         (107.724)         2,024.719
                                       ---------         ---------         --------          ---------
  Total Liabilities & Equity           1,819.340         1,036.482         (150.733)         2,705.089
                                       =========         =========         ========          =========


  Total Debt(b)                          528.658           648.146                           1,111.863
  Tot. Debt/Tot. L-T Cap. + S-T Debt.      38.2%             79.7%                               53.2%

  EBITDA/Interest Incurred                   4.1x              1.8x                                2.9x
  CFFO/Interest Incurred                     3.2x              0.9x                                1.9x
  CFFO/Total Debt                          23.0%              7.0%                               13.5%

</TABLE>



- -----------
(a) Assumes a price per share of $16.00.
(b) Total Debt includes all debt, capital leases and redeemable preferred stock.

<PAGE>   81


Dillon, Read & Co. Inc.                                      12/10/93
- ---------------------------------------------------------------------

                       Valero Natural Gas Partners, L.P.
                      Merger Effects on Valero Energy (a)


<TABLE>
<CAPTION>
                                                               Nine Months Ended 9/30/93
                                              -------------------------------------------------------
                                                VEC             VLP          Adjustments    Pro Forma
                                              ------          -------        -----------    ---------
<S>                                           <C>             <C>            <C>            <C>

Income Statement:
- ----------------
  Operating Revenues                          940.223         994.636        (213.914)      1,720.945   
  Equity Investments                           20.528           0.000         (20.528)          0.000
                                              -------         -------        --------       ---------
    Total Revenues                            960.751         994.636        (234.442)      1,720.945 

  Cost of Goods Sold                          712.481         811.603        (156.510)      1,367.574 
  Operating Expenses                           92.649          90.788         (62.228)        121.209
  General & Administrative Expenses             0.000           0.000           0.000           0.000
                                              -------         -------        --------       ---------
    Operating Cash Flow/EBITDA                155.621          92.245         (15.704)        232.162

  Depreciation & Amortization                  41.859          27.190           0.472          69.521
                                              -------         -------        --------       ---------
    Operating Income/EBIT                     113.762          65.055         (16.176)        162.641

  Other Income                                  0.000           1.029           0.000           1.029
  Extraordinary Gains/(Losses)                  7.245           0.000           0.220           7.465
  Capital Lease Interest Incurred               0.000          (9.629)          9.629           0.000
  Other Interest Incurred(b)                  (37.640)        (41.208)         (1.485)        (80.333)
  Interest Capitalized                         11.915           1.206           0.000          13.121
                                              -------         -------        --------       ---------
    Income Before Taxes                        95.282          16.453          (7.812)        103.923

  Income Tax Expense(c)                        43.700           0.000           3.026          46.726
                                              -------         -------         -------       ---------
    Net Income                                 51.582          16.453         (10.838)         57.197
                                       
  Preferred Dividends                           0.953           0.000           6.094           7.047
                                              -------         -------        --------       ---------
    Net Income to Common                       50.629          16.453         (16.932)         50.150

  Earnings Per Share                            $1.18           $0.86                           $1.16
    Weighted Average # of Shares               43.074          19.052                          43.074

Cash Flow Statement:
- -------------------
  Net Income                                   50.629          16.453         (16.932)         50.150

  Depreciation and Amortization                41.859          27.190           0.472          69.521
  Deferred Income Taxes                        26.600           0.000           0.000          26.600
  Amortization of Deferred Charges             16.735           1.953           0.000          18.688
  Net (Gains)/Losses                           (7.842)          0.000          (0.220)         (8.062)
  Other Items                                  (6.478)          0.000           0.000          (6.478) 
                                              -------         -------        --------       ---------
  Cash Flow From Operations/CFFO              121.503          45.596         (16.680)        150.419

  Changes in Current Assets & Liabilities     (14.993)         (7.481)          0.000         (22.474)
  Changes in Other Assets & Liabilities        (6.273)          7.079           0.000           0.806
                                              -------         -------        --------       ---------
    Cash Provided By Operations               100.237          45.194         (16.680)        128.751

  CFFO Less Preferred Dividends               120.550          45.596                         143.373
    Cash Flow Per Share                         $2.80           $2.39                           $3.33

</TABLE>

- ----------------
(a)   Assumes a price per share of $16.00.
(b)   Assumes an effective interest rate of 5.1%.
(c)   Assumes a tax rate of 35.0%.

<PAGE>   82
   




                                                                     APPENDIX 12


                PRESENTATION OF GRAPHIC MATERIAL IN EDGAR FORMAT


1.       The graph having the title EBITDA Results/Projections appearing at
         page 9 of appendix 7 was omitted.  In its stead, a chart providing
         data points and describing the data has been presented. (CONFIDENTIAL
         TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION APPEARING IN SUCH 
         CHART.)                                                 

2.       The graph having the title CFFO Results/Projections appearing at page
         10 of appendix 7 was omitted.  In its stead, a chart providing data
         points and describing the data has been presented. (CONFIDENTIAL
         TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION APPEARING IN SUCH 
         CHART.)                                                 

3.       The graph having the title Net Income Results/Projections appearing
         at page 11 of appendix 7 was omitted.  In its stead, a chart providing
         data points and describing the data has been presented. (CONFIDENTIAL
         TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION APPEARING IN SUCH 
         CHART.)                                                 

4.       The graph having the title Liquids: OP Income Results/Projections
         appearing at page 12 of appendix 7 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented. 
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION 
         APPEARING IN SUCH CHART.)

5.       The graph having the title NGL Plant Production Results/Projections
         appearing at page 13 of appendix 7 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION 
         APPEARING IN SUCH CHART.)

6.       The graph having the title Actual/Projected NGL Market Prices
         appearing at page 14 of appendix 7 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION 
         APPEARING IN SUCH CHART.)

7.       The graph having the title Actual/Project NGL Gross Margins appearing
         at page 15 of appendix 7 was omitted.  In its stead, a chart providing
         data points and describing the data has been presented. (CONFIDENTIAL 
         TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION APPEARING IN SUCH 
         CHART.)

8.       The graph having the title Pipeline: OP Income Results/Projections
         appearing at page 16 of appendix 7 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION 
         APPEARING IN SUCH CHART.)

9.       The graph having the title Total Throughput Projections appearing at
         page 17 of appendix 7 was omitted.  In its stead, a chart providing
         data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION 
         APPEARING IN SUCH CHART.)

10.      The graph having the title Actual/Projected Transportation Fees
         appearing at page 18 of appendix 7 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION 
         APPEARING IN SUCH CHART.)
    
<PAGE>   83
   
11.      The graph having the title Operating Results/Projections: 1988-1994
         appearing at page 2 of appendix 8 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION
         APPEARING IN SUCH CHART.)

12.      The graph having the title Liquids Segment: NGL Volumes appearing at
         page 3 of appendix 8 was omitted.  In its stead, a chart providing
         data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION
         APPEARING IN SUCH CHART.)

13.      The graph having the title Liquids Segment: NGL Prices appearing at
         page 4 of appendix 8 was omitted.  In its stead, a chart providing
         data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION
         APPEARING IN SUCH CHART.)

14.      The graph having the title Pipeline Segment: Throughput Volumes
         appearing at page 5 of appendix 8 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION
         APPEARING IN SUCH CHART.)

15.      The graph having the title Pipeline Segment: Natural Gas Sales
         appearing at page 6 of appendix 8 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.
         (CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR THE INFORMATION
         APPEARING IN SUCH CHART.)

16.      The graph having the title Stock Price Performance for Period:
         10/23/93 - 12/08/93 appearing at page 2 of appendix 9 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

17.      The graph having the title Stock Price Performance for the Period:
         10/12/90 - 12/08/93 appearing at page 3 of appendix 9 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

18.      The graph having the title Stock Price Performance for the Period:
         9/30/88 - 12/08/93 appearing at page 4 of appendix 9 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

19.      The graph having the title Stock Price Performance for the Period:
         3/18/87 - 12/08/93 appearing at page 5 of appendix 9 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

20.      The graph having the title Analysis of Historical P/E Ratios
         appearing at page 6 of appendix 9 was omitted.  In its stead, a chart
         providing data points and describing the data has been presented.

21.      The graph having the title Commodity Price Movements for the Period:
         7/1985 - 10/1993 appearing at page 2 of appendix 10 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

22.      The graph having the title Commodity Price Movements for the Period:
         7/1985 - 10/1993 appearing at page 3 of appendix 10 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.
    
<PAGE>   84
   
23.      The graph having the title Commodity Price Movements for the Period:
         7/1985 - 10/1993 appearing at page 4 of appendix 10 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

24.      The graph having the title Commodity Price Movements for the Period:
         7/1985 -10/1993 appearing at page 5 of appendix 10 was omitted.  In
         its stead, a chart providing data points and describing the data has
         been presented.

25.      The graph appearing at page 16 of Appendix 4, and having the following
         heading was omitted:

                             HISTORICAL PREMIUMS ON
                              MINORITY CLOSE-OUTS
                             ONE MONTH BEFORE OFFER

         The omitted material presented in graph form the percentages of
         premiums paid in 137 selected transactions involving the purchase of
         minority interests from 1/1/86 through 11/22/93.

<TABLE>
<CAPTION>
                                                                                NO. OF
                    PREMIUM %                                                TRANSACTIONS
                    ---------                                                ------------
                    <S>                                                           <C>
                    -10 - 0%                                                       17
                     0 - 10%                                                       17
                    10 - 20%                                                       12
                    20 - 30%                                                       20
                    30 - 40%                                                       18
                    40 - 50%                                                       19
                    50 - 60%                                                       10
                    60 - 70%                                                        3
                    70 - 80%                                                        7
                      80 + %                                                       14
                                                                                  ---
                 TOTAL                                                            137
</TABLE>

26.      The graph appearing at page 17 of Appendix 4, and having the following
         heading was omitted:

                             HISTORICAL PREMIUMS ON
                              MINORITY CLOSE-OUTS
                             ONE WEEK BEFORE OFFER

         The omitted material presented in graph form the percentages of
         premiums paid in 137 selected transactions involving the purchase of
         minority interests from 1/1/86 through 11/22/93.

<TABLE>
<CAPTION>
                                                                                 NO. OF
                    PREMIUM %                                                 TRANSACTIONS
                    ---------                                                 ------------
                    <S>                                                            <C>
                    -10 - 0%                                                       12
                     0 - 10%                                                       15
                    10 - 20%                                                       24
                    20 - 30%                                                       23
</TABLE>
    
<PAGE>   85
   
<TABLE>
                    <S>                                                           <C>
                    30 - 40%                                                       14
                    40 - 50%                                                       17
                    50 - 60%                                                       10
                    60 - 70%                                                        9
                    70 - 80%                                                        6
                      80 + %                                                        7
                                                                                  ---
                     TOTAL                                                        137
</TABLE>

27.     The graph appearing at page 18 of Appendix 4, and having the
        following heading was omitted:

                             HISTORICAL PREMIUMS ON
                              MINORITY CLOSE-OUTS
                              ONE DAY BEFORE OFFER

         The omitted material presented in graph form the percentages of
         premiums paid in 137 selected transactions involving the purchase of
         minority interests from 1/1/86 through 11/22/93.

<TABLE>
<CAPTION>
                                                                                 NO. OF
                     PREMIUM %                                                TRANSACTIONS
                     ---------                                                ------------
                    <S>                                                           <C>
                    -10 - 0%                                                       12
                     0 - 10%                                                       15
                    10 - 20%                                                       27
                    20 - 30%                                                       30
                    30 - 40%                                                       12
                    40 - 50%                                                       15
                    50 - 60%                                                       10
                    60 - 70%                                                        3
                    70 - 80%                                                        3
                      80 + %                                                       10
                                                                                  ---
                      TOTAL                                                       137
</TABLE>
    

<PAGE>   1
                                                                  Exhibit (b-3)



                                PROJECT MAINE





                                                                    OCTOBER 1993
                                                            SALOMON BROTHERS INC

<PAGE>   2
SALOMON BROTHERS INC

<TABLE>
<CAPTION>

Outline of Presentation
- -----------------------
                                                                                                                             TAB
                                                                                                                             ---
                 <S>                                                                                                       <C>
                 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  A

                 VALUATION SUMMARY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  B

                 REVIEW OF TRANSACTION STRUCTURE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  C

                 PRO FORMA ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  D

                 APPENDICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  E

                          DETAILED DCF MODEL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1

                          Detailed Pro Forma Combination Model  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2

                          Stock Price Performance Graphs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3

                          Gathering, Transmission and Processing Comparables  . . . . . . . . . . . . . . . . . . . . . .  4  

                          Refining and Marketing Comparables  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
</TABLE>





                                                                               1
<PAGE>   3
SALOMON BROTHERS INC

INTRODUCTION





                                                                               2
<PAGE>   4
SALOMON BROTHERS INC

Introduction

Issues associated with the repurchase of the 51% of VLP owned by the public:

         o   Valuation of VLP

         o   Precedent transactions (MLP buy-ins and minority squeeze outs)

         o   Alternative transaction forms (cash tender, cash merger, exchange
             offer)

         o   Convertible Preferred Stock ("Convert") as a means of financing the
             transaction

         o   Transaction mechanics and timing

         o   Potential impact of transaction on VLO stock price and credit 
             rating





                                                                               3
<PAGE>   5
SALOMON BROTHERS INC

The Salomon Transaction Team



       ENERGY CORPORATE FINANCE
            Garfield Miller, Managing Director, Head of the Energy Group
            David Prend, Director
            Scott Baxter, Vice President
            Nick Leone, Associate
            Roy Jageman, Associate
            Rick Dowdle, Analyst

       MERGERS AND ACQUISITIONS
            David Wittig, Managing Director, Co-Head of Mergers and Acquisitions
            Laurie Coben, Vice President

       EQUITY CAPITAL MARKETS
            Peter Blanton, Vice President
            Kevin Swanson, Vice President

       OTHER
            Don Dufresne, Equity Research
            Roger Taylor, Fixed Income Research
            Mark Hallock, Private Placements
            Moctar Fall, Investment Grade Debt
            Sean Crowley, High Yield Debt





                                                                               4
<PAGE>   6
SALOMON BROTHERS INC

VALUATION SUMMARY





                                                                               5
<PAGE>   7
SALOMON BROTHERS INC

Key Issues Regarding Valuation of VLP

    o     Current unit price of $9.375

    o     Very high leverage (80% Debt/Book Capitalization) impacts value

             -  Debt is effectively non-redeemable

             -  Highly leveraged equities tend to be valued at a discount due 
                to financial risk

             -  Small variations in value of business are amplified by leverage 
                into large variations in equity value

     o     Low historical and projected growth relative to comparable public
           companies

     o     MLP structure/impact on tax treatment





                                                                               6
<PAGE>   8
SALOMON BROTHERS INC

Price and Volume Profile of VLP


                        VALERO NATURAL GAS PARTNERS, LP
                     DAILY DATA - 12/30/88 THROUGH 10/1/93

                                   [GRAPH A]

Valero Natural Gas Partners, LP: Price (left axis)
Valero Natural Gas Partners, LP: Volume (right axis)





                                                                               7
<PAGE>   9
SALOMON BROTHERS INC

Dividend Yield Profile of VLP


                        VALERO NATURAL GAS PARTNERS, LP
                      DAILY DATA - 12/30/88 THROUGH 10/1/93


                                   [GRAPH B]

Valero Natural Gas Partners, LP





                                                                               8
<PAGE>   10
SALOMON BROTHERS INC


Publicly Traded MLPs


    o     No publicly traded MLPs in the natural gas/processing business.

MLP PUBLIC COMPANIES

<TABLE>
<CAPTION>                                                       
                                                                                            FIRM         MARKET        FIRM
                                                     UNIT      YIELD      DEBT/BOOK      VALUE/LTM    EQUITY VALUE     VALUE
             PIPELINE MLP'S                         PRICE(a)    LTM     CAPITALIZATION   EBDIAT(b)     (MILLIONS)    (MILLIONS)
- ---------------------------------------             --------   -----    --------------   ---------    ------------  -----------
<S>                                               <C>          <C>         <C>              <C>           <C>         <C>
VALERO NATURAL GAS PARTNERS, L.P.                 $  9.125     5.5%        79.6%            6.1X          $174        $  784

Buckeye Partners, L.P.                              37.375     7.0         50.5             8.5            453           667

Kaneb Pipe Line Partners, L.P.                      27.750     7.9         24.6             6.5            201           229

TEPPCO Partners, L.P.                               28.125     7.8         58.8             7.9            408           712

Lakehead Pipe Line Partners, L.P.                   31.750     7.4         46.6             8.8            692           931

Enron Liquids Pipeline, L.P.                        31.000     7.1         45.2             7.8            175           275

Santa Fe Pacific Pipeline Partners, L.P.            39.000     7.2         55.6             8.9            747         1,075
</TABLE>

(a)  Prices as of October 6, 1993
(b)  Financials as of June 1993





                                                                               9
<PAGE>   11
SALOMON BROTHERS INC


Premium Analysis

STARTING POINT FOR VALUATION IS THE CURRENT MARKET PRICE.  PRICE @ 10/7/93 =
$9.375



<TABLE>
<CAPTION>
                                                 ($ in millions, except per share)

                                          VLP         CURRENT                      ASSUMED OFFER PRICE PER UNIT
                                          LTM         MARKET     -----------------------------------------------------------------
                                          DATA         $9.38         $9.00     $10.00     $11.00    $12.00     $13.00     $14.00
                                          ----        ------         -----     ------     ------    ------     ------     ------
<S>                                      <C>           <C>           <C>        <C>        <C>       <C>        <C>        <C>
Implied Total Equity Value ($mm) (a)                   178.6         171.5      190.5      209.6     228.6      247.7      266.7
Implied Total Firm Value ($mm) (a)                     807.1         800.0      819.0      838.1     857.1      876.2      895.2

PREMIUM TO MARKET:
     October 7                            $9.38          0.0%         -4.0%       6.7%      17.3%     28.0%      38.7%      49.3%
     LTM High                             $9.88         -5.1%         -8.9%       1.3%      11.4%     21.5%      31.6%      41.8%
     LTM Low                              $7.75         21.0%         16.1%      29.0%      41.9%     54.8%      65.7%      80.6%

OFFER PRICE TO:
     LTM Earnings per Share (b)           $0.96          9.8x          9.4x      10.4x      11.4x     12.5x      13.5x      14.6x
     1994E Earnings per Share (b)         $0.19         48.3x         46.4x      51.5x      56.7x     61.9x      67.0x      72.2x

     Book Value (6/30/93)                 $8.50        110.3%        105.9%     117.7%     129.4%    141.2%     153.0%     164.7%

     LTM Cash Flow per Share (b)          $2.89          3.2x          3.1x       3.5x       3.8x      4.2x       4.5x       4.8x

TOTAL FIRM VALUE TO:
     LTM EBITDA                          $126.7          6.4x          6.3x       6.5x       6.6x      6.8x       6.9x       7.1x
     LTM EBIT                              94.2          8.6x          8.5x       8.7x       8.9x      9.1x       9.3x       9.5x
</TABLE>



(a)  Assuming net debt and capitalized lease obligations of $628.501 million
     and 19.05 million units outstanding.
(b)  Assuming a 35% book tax rate and a 15% cash tax rate.





                                                                              10
<PAGE>   12
SALOMON BROTHERS INC


        Recent MLP Buy-Ins

<TABLE>
<CAPTION>
ANNOUNCEMENT                                            LIMITED                  PRE-TRANSACTION          PREMIUM
    DATE               ACQUIROR                    PARTNERSHIP/TARGET               OWNERSHIP            PAID (a) 
- ------------   ------------------------       ----------------------------     -------------------   ------------------
 <S>             <C>                           <C>                                    <C>                   <C>
  2/15/89        ENSERCH Corp.                 ENSERCH Exploration                     87%                   7%
                                                 Partners, Ltd.

 12/20/89        National Intergroup, Inc.     Permian Partners, L.P.                  44%                  34%

  8/15/88        Apache Corp.                  Apache Petroleum Co.                    7%                    7%
                                                 L.P.

  7/31/90        Freeport-McMoRan Inc.         Freeport-McMoRan                       81.5%                 44%
                                                 Oil & Gas Co.

  11/1/89        Freeport-McMoRan Oil          Freeport-McMoRan                       81.5%                 None
                   & Gas Co.                     Energy Partners

  6/11/90        Unocal Exploration            Union Exploration                       95%                  None
                   Corporation                   Partners, Limited

  9/10/93        Santa Fe Energy               Santa Fe Energy                         91%                  31%
                   Resources, Inc.               Partners L.P.

  8/12/93        Southland Royalty Co./        Permian Basin Royalty                   33%                  25%
                   Burlington Resources          Trust
                   Inc.
</TABLE>


<TABLE>
<CAPTION>
ANNOUNCEMENT            TYPE OF                    TRANSACTION                   % YIELD
    DATE             CONSIDERATION                    VALUE                    (PRE/POST)     
- ------------   ------------------------       ---------------------        -------------------
                                                 ($ in millions)
  <S>                <C>                             <C>                      <C>
   2/15/89           Common Stock                    $153.2                   10.8% / 3.7%
                        & Cash

  12/20/89               Cash                          62.8                     32% / NM

   8/15/88           Common Stock                     138.1                    --% / 3.5%

   7/31/90           Common Stock                     251.9                    1.3% / 3.6%

   11/1/89           Conversion to                    207.8                   24.1% / 1.0%
                     Corp. Common
                         Stock

   6/11/90           Conversion to                    216.5                    10.9%/2.2%
                     Corp. Common
                         Stock

   9/10/93               Cash                          28.3                    10.7% / NM

   8/12/93               Cash                         151.4                     9.3% / NM

</TABLE>
                  MEDIAN PREMIUM PAID                  28%


- --------------------

(a)  Premium calculated live trading days prior to announcement.





                                                                              11
<PAGE>   13
SALOMON BROTHERS INC


Summary of Minority Squeeze Outs
CASH TRANSACTIONS (a)


<TABLE>
<CAPTION>
  ACQUIRORS                                                                                        1 MONTH              1 DAY
 HOLDINGS AT                        ACQUIROR/                                         %            PRIOR TO            PRIOR TO
TIME OF OFFER                         TARGET                          DATE         HOLDING     ANNOUNCEMENT(b)     ANNOUNCEMENT(b) 
- --------------   -----------------------------------------------    --------      --------     ----------------    ---------------
  <S>             <C>                                              <C>              <C>               <C>                <C>
   Below 50%      General Host Corp./Sunbelt Nursery Group Inc.     7/28/93         49.5%             16.0%               1.3%
               
                  Lelakis Group/Regency Cruises Inc.                6/12/91         37.0              32.7               48.6
               
                  Investor Group/Stanley Interiors Corp.            8/16/88         47.0              46.7               49.2
               
                                                          MEAN                                        31.8%              33.0%
               
   50% to 60%     Carroll Family/Katy Industries                     9/2/92         51.7              30.6               (4.2)
               
                  Stavely Industries/Weigh-Tronix                   6/13/91         57.0              50.2               51.5
               
                                                          MEAN                                        40.4%              NA
               
   60% to 80%     Land O'Lakes/Country Lakes Foods                  7/26/91         68.2              64.0                4.1
               
                  Dow Jones/Telerate                                9/22/89         67.0              30.2                3.1
               
                  Ogden Corp./ERC Environ & Energy                 10/23/90         68.0              22.9               34.8
               
                                                          MEAN                                        39.0%              19.5%

   80% and up     W.R. Grace/Grace Energy                            3/3/92         83.4              56.7                7.5
               
                  Tine Warner/American T.V. & Comm.                10/17/91         82.7               0.3                0.6
               
                  Pennzoil/Jiffy Lube                               7/30/91         82.4              17.6               18.9
               
                  Kansas City Southern DST Systems                  5/17/90         87.1              51.6               24.1
               
                  Olympia & York/GW Utilities Limited               1/30/90         89.3              75.3               90.2
               
                  Tico Taco Inc./Del Taco Restaurants                2/9/90         81.8              46.5               29.8
               
                                                          MEAN                                        41.3%              28.5%
               
                                         ALL TRANSACTIONS MEAN                                        38.7%              29.1%
</TABLE>
               

- --------------------

(a)  Selected transactions.
(b)  S&P 600-adjusted return.





                                                                              12
<PAGE>   14
SALOMON BROTHERS INC


Summary of Minority Squeeze Outs


STOCK-FOR-STOCK TRANSACTIONS (a)


<TABLE>
<CAPTION>
  ACQUIRORS                                                                      % OF COMB.        1 MONTH            1 DAY
 HOLDINGS AT                 ACQUIROR/                                 %         CO. OWNED         PRIOR TO          PRIOR TO
TIME OF OFFER                 TARGET                       DATE      HOLDING      BY TARGET    ANNOUNCEMENT (b)    ANNOUNCEMENT (b)
- --------------     ----------------------------           ------    --------  ---------------- ----------------    ---------------
 <S>                  <C>                                 <C>          <C>           <C>              <C>                 <C>
  50% TO 60%          Intermark/Triton                    8/31/90      51.6%         46.0%            19.9%                2.7%
                                                                 
                      Alberta Energy/Chieftain            8/18/88      57.0          10.4             16.3                23.4
                                                                 
                      Placer Dome/Kiena Gold              6/22/88      56.7           2.1             23.6                11.7
                                                                 
                      PG&E/PGT                                         50.5           2.1             41.2                39.6
                                                                 
                                              MEAN                                   15.2%            25.3%               19.4%
                                                                  
  60% TO 80%          Murphy Oil/Ocean Drilling            1/4/91      61.0          19.7             14.2                14.5
                                                                 
                      Collins Foods/Sizzler               9/11/90      66.0          23.4             19.6                27.9
                                                                 
                      Placer Dome/Sigma Mines             6/22/88      64.7           1.3             27.8                 6.2
                                                                 
                      Primerica/A L Williams               6/9/89      69.8          14.8             38.3                24.4
                                                                 
                      J & J Foods/ICEE                    3/23/88      72.0           1.2             23.7                29.4
                                                                 
                      EnviroSource Inc./Envirosafe Srvs.   8/2/91      62.5          23.4             (6.1)               35.9
                                                                 
                                              MEAN                                   14.0%            19.6%               23.1%
</TABLE>
                                                                 

- --------------------

(a)  Completed Transactions Only.
(b)  S&P 500-adjusted return




                                                                              13
<PAGE>   15
SALOMON BROTHERS INC


Summary of Minority Squeeze Outs


STOCK-FOR-STOCK TRANSACTIONS (CONTINUED) (a)


<TABLE>
<CAPTION>
  ACQUIRORS                                                                        % OF COMB.        1 MONTH              1 DAY
 HOLDINGS AT                 ACQUIROR/                                    %         CO. OWNED        PRIOR TO            PRIOR TO
TIME OF OFFER                 TARGET                     DATE          HOLDING      BY TARGET    ANNOUNCEMENT(b)     ANNOUNCEMENT(b)
- --------------        -------------------------        --------       --------  ---------------- ----------------    ---------------
 <S>                  <C>                             <C>               <C>           <C>              <C>                 <C>
  80% AND UP          USWest/USWest NewVector         11/12/90          80.9%          2.7%            78.1%               48.1%

                      Freeport/Freeport Oil & Gas      7/31/90          81.5          12.0             49.0                37.4

                      Starrett/Levitt                  7/14/88          80.0          10.6             41.6                26.9

                      Charter/Spelling Entertainment    2/7/92          95.6           2.7             70.4                23.0

                      Unocal/Unocal Exploration        2/25/92          99.8           0.1             20.7                14.7

                                                 MEAN                                  5.6%            52.0%               30.0%


                                ALL TRANSACTIONS MEAN                                 11.5%            31.9%               24.4%
</TABLE>


- --------------------

(a)  Completed Transactions Only.
(b)  S&P 500-adjusted return




                                                                              14
<PAGE>   16
SALOMON BROTHERS INC


Valuation Methodologies

PUBLIC MARKET MULTIPLES

     o   Selected public market trading multiples of intrastate gas pipelines 
         and gas processing companies applied to VLP's historical and projected 
         operating results

     o   VLP's projected operating results are management's projections

COMPARABLE TRANSACTION MULTIPLES

     o   Acquisition multiples of EBDIAT are selected from recent comparable
         M&A transactions

DISCOUNTED CASH FLOW ANALYSIS

     o   Analysis uses unleveraged free cash flow of VLP as projected by VLO
         management

     o   Free cash flows and discount rates for VLP assume zero taxes due to
         partnership structure

     o   Terminal values are calculated using a perpetual growth methodology





                                                                              15
<PAGE>   17
SALOMON BROTHERS INC


VLP Valuation Summary

VALUATION METHODOLOGY
*(Dollars in millions, except per unit values)


<TABLE>
<CAPTION>
                                                          Reference
                                                       Multiple Range       Implied Equity Value (a)
                                       VLP         ----------------------  --------------------------
                                       Data            Low       High          Low         High  
                                     -------         -------   --------      -------     --------
<S>                                    <C>            <C>        <C>          <C>         <C>
PUBLICLY TRADED COMPARABLES
EBDIAT        LTM                      $127            6.5x       7.5x        $10.33      $17.00
              1994E                    $112            6.0x       7.0x         $2.27       $8.15

Cash Flow (b) LTM                       $55            5.5x       6.5x        $15.88      $18.77

Earnings (b)  1993E                     $11           17.0x      21.0x         $9.82      $12.13
              1994E                      $4           15.0x      19.0x         $2.91       $3.69

M&A TRANSACTIONS
EBDIAT        LTM                      $127            7.0x       8.0x        $13.66      $20.33
              1993E                    $122            7.0x       8.0x        $12.19      $18.65



DISCOUNTED CASH FLOW ANALYSIS                                                  $4.60      $11.20
</TABLE>



- -----------------------

*    Numbers may not be tie directly due to rounding.
(a)  Assumes $639 Debt, $18 million in Deferred Management Fees, $28 million
     cash and 19.05 million units outstanding.
(b)  Assuming a 35% book tax rate and a 15% cash tax rate.





                                                                              16
<PAGE>   18
SALOMON BROTHERS INC


Comparable Considerations

IN DETERMINING APPROPRIATE PUBLIC MARKET MULTIPLES FOR VLP, SALOMON HAS
CONSIDERED THE FOLLOWING FACTORS INFLUENCING THE VALUATION OF OTHER GATHERING,
TRANSMISSION AND PROCESSING COMPANIES AND THE POTENTIAL MARKET VALUATION OF
VLP.

     o   The market would look closely at VLP's historical earnings trend
         and composition as an indicator of potential future performance.
            -   VLP's pipeline operations have been on a consistent downward
                trend, declining each year from $71 million in 1988 to $33
                million in 1992.
            -   While NGL operating profits (64% of 1992 operating profit)
                have been stable in the $55 - $65 million range for the last
                three years, in 1988 and 1989 EBIT was $1 million and $5
                million respectively.

                       o  The market will look to the 1988 and 1989 returns
                          as an indication of the potential downside in the
                          event of another substantial industry downturn.

                       o  This  view will be mitigated by a market view that
                          the industry has made a fundamental/structural shift
                          and future risk is lower than in the past.

     o   Furthermore, VLP's growth prospects are perceived to be more limited
         than the other Gathering, Transmission and Processing companies due
         to the capital structure.





                                                                              17
<PAGE>   19
SALOMON BROTHERS INC


Comparable Considerations

     o   Most of the publicly traded comparables have demonstrated
         substantial growth historically and as  a result are regarded as
         having additional growth potential.

            -   American Oil & Gas, Associated Natural Gas, Tejas Gas,
                Aquila and Western Gas Resources have all achieved
                substantial growth through acquisitions.

            -   The above companies have increased operating income (1)
                20% - 65% annually since 1990 and have generated a
                corresponding increase in E.P.S.

            -   Their stock prices have increased 150% since 1991 and are
                currently trading at high multiples in anticipation of
                continued growth.

            -   VLP has no comparable track record.

     o   Trident and USX-Delhi have demonstrated substantially lower margin
         growth.

            -   Trident's margin is dominated by gas processing and has dropped
                10% in each of the last two years.

                       o  Trident has a stable fractionation business which
                          has consistently generated approximately $25 of
                          gross margin since 1983.

                       o  Trident's NGL gross margin of $83 million (excluding
                          fractionation) is approximately double the 1988-1989
                          levels.




- --------------------

(1)  Gross margins were used as a proxy for operating income where data was
     unavailable.





                                                                              18
<PAGE>   20
SALOMON BROTHERS INC


Comparable Considerations

     o   USX-Delhi's operations have been a stable cash flow generator over the
         last 5 years.

            -   The stock, however, is negatively impacted by the overhang of
                the pending secondary offering and the letter stock structure.

            -   The market does not anticipate any growth via acquisitions.

CONCLUSION

     o   Trident, Aquila and USX-Delhi are the closest proxies for a public
         market valuation of VLP.  However, Trident and Aquila are only filed
         offerings, not currently public traded companies.

     o   The other Gathering, Transmission and Processing companies are less
         comparable due to their extremely high growth record and perceived
         future prospects.

     o   Highly leveraged capital structure and lack of historical growth
         record would place VLP at the lower end of comparable multiple
         range.





                                                                              19
<PAGE>   21
SALOMON BROTHERS INC


Publicly Traded Comparable Companies

SELECTED INTRASTATE GAS PIPELINE AND PROCESSING COMPANIES


<TABLE>
<CAPTION>
                                     FIRM VALUE/EBDIAT         PRICE/CASH FLOW           PRICE/EARNINGS  
                                   ---------------------     -------------------    ------------------------
                                     LTM          1994E              LTM              1993E           1994E 
                                   --------     --------     -------------------    --------         -------
<S>                               <C>           <C>               <C>              <C>             <C>
American Oil & Gas                    8.6x         6.1x              10.7x            17.4x            12.4x

Associated Natural Gas                9.4          8.1               10.3             24.7             19.6

Tejas Gas                            10.4         10.2               10.3             36.4             26.0

USX-Delhi                             5.4          4.4                5.4             16.5             13.1

Western Gas Resources                13.0         10.1               14.4             25.1             19.7

High                                 13.0x        10.2x              14.4x            36.4x            26.0x

Median                                9.4          8.1               10.3             24.7             19.6

Low                                   5.4          4.4                5.4             16.5             12.4


CURRENT FILINGS:

Aquila                                8.1x        NA                  6.6x              NA             NA

Trident NGL                           7.4         NA                  6.7               NA             NA


SALOMON REFERENCE RANGE           6.5 - 7.5x    6.0 - 7.0x        5.5 - 6.5x       17.0 - 21.0x    15.0 - 19.0x
</TABLE>


- --------------------
NB: Selected financial results as of June 30, 1993.
(a)  Source of projected EBDIAT: Analyst research reports.
(b)  Cash flow from operations equals net income plus depreciation and
     amortization, change in deferred taxes, and other non-cash items.
(c)  Source of projected EPS: IBES (6/20/93), median estimate
(d)  Assumes a 35% book tax rate and a 15% cash tax rate.




                                                                              20
<PAGE>   22
SALOMON BROTHERS INC


Relative Market Size of the Natural Gas Industry

The Gathering, Transmission & Processing sector is a relatively small part
of the natural gas equity market and is dominated by large insider ownership.



                                   [GRAPH C]




[  ] Insider ownership in the GTP Industry





                                                                              21
<PAGE>   23
SALOMON BROTHERS INC


Liquidity in the Natural Gas Equity Market


Due to its small size, the GTP sector is much less liquid compared to the
pipeline and E&P sectors of the natural gas industry.



                    TOTAL SHARES TRADED AS A PERCENTAGE OF
                             MARKET CAPITALIZATION


                                   [GRAPH D]





- --------------------
    Data for latest twelve months





                                                                              22
<PAGE>   24
SALOMON BROTHERS INC


Publicly-Traded Comparable Companies


<TABLE>
<CAPTION>
             COMPANY                                        COMMENTS                                                  
- ----------------------------------         ---------------------------------------------------------------------------
<S>                                        <C>
American Oil and Gas Corporation           o  Operations dominated by the pipeline

                                           o  Acquired Maple gas processing in 1992

                                           o  Two year EBIT growth of 21%

                                           o  Smallest of the comparables ($378 million firm value)


Associated Natural Gas Corporation         o  EBIT has grown 31% per year since 1990

                                           o  Revenue growth of 52% per year since 1990

                                           o  Solid track record of successful acquisitions


Tejas Gas Corporation                      o  Substantial insider holdings

                                           o  The company has achieved dramatic growth and significantly expanded  
                                              business via the acquisition of Exxon assets

                                           o  Gross margin is 94% derived from the pipeline operations
</TABLE>





                                                                              23
<PAGE>   25
SALOMON BROTHERS INC


Publicly-Traded Comparable Companies


<TABLE>
<CAPTION>
             COMPANY                                        COMMENTS                                                  
- ----------------------------------         --------------------------------------------------------------------------------------
<S>                                        <C>
USX-Delhi Group                            o  Significant overhang from the letter stock structure and planned secondary offering

                                           o  Margins have been stable and are primarily driven by pipeline operations

                                           o  Limited revenue and margin growth since 1990

                                           o  Growth via acquisitions is not expected in the near or intermediate term


Western Gas Resources, Inc.                o  Primarily a pure play gas processing company

                                           o  Substantial insider holdings

                                           o  Recent acquisition of Mountain Gas Resources is not yet included in financials,
                                              implying multiplies of pro forma earnings are lower than currently indicated

                                           o  Operating earnings growth of 49% annually since 1990 driven by solid acquisition 
                                              track record
</TABLE>





                                                                              24
<PAGE>   26
SALOMON BROTHERS INC


Recently Filed Comparable Companies

<TABLE>
<CAPTION>
             COMPANY                                        COMMENTS                                                  
- ----------------------------------         -------------------------------------------------------------------------------------
<S>                                        <C>
Aquila Gas Pipeline Corp.                  o  Utilicorp has built the company via acquisitions in two years

                                           o  Solid 2 year revenue growth for pipeline and processing


Trident NGL, Inc.                          o  Gross margin is 89% derived from gas processing

                                           o  Although gross margin of $83(1) million is down from 1990  highs, it is approximately
                                              double the 1988 - 1989 levels

                                           o  Stable fractionation business ($25 million gross margin)

                                           o  Historical gas processing margin reached a low of $41 million versus VLP's NGL
                                              operating income of $4 million in 1989
</TABLE>

Although recently filed IPOs may be used to provide a benchmark, the IPO may
be completed above or below the range, or may not  be accepted by the market.





- --------------------
(1)  Excludes $25 million of fractionation margin.





                                                                              25
<PAGE>   27
SALOMON BROTHERS INC


Publicly-Traded Comparable Companies
($ millions)



<TABLE>
<CAPTION>
                                                  AMERICAN      ASSOC.        TEJAS(1)                     USX-        WESTERN GAS
                          VLP      AQUILA (2)       O&G      NATURAL GAS        GAS      TRIDENT (1)     DELHI (1)      RESOURCES
                       ------      ----------     --------   -----------      --------   -----------     ---------      ----------
<S>                    <C>            <C>           <C>          <C>           <C>           <C>           <C>            <C>
1992 REVENUES

Pipeline & Other         $743         $140          $375           NA          $810          $492          $387            $31
Processing                466           71            56           NA            73           386            70            569
                       ------         ----          ----         ----          ----          ----          ----           ----
     Total             $1,209         $211          $431         $928          $883          $878          $457           $600
                       ======         ====          ====         ====          ====          ====          ====           ====
     % Processing          39%          34%           13%          NA             8%           44%           15%            95%

2 year CAGR
     Pipeline & Other      (2)%         32%           (7)%         NA            NA            (7)%           4%            28%
     Processing            19           16           152           NA            NA            (3)           26             55
                       ------         ----          ----         ----          ----          ----          ----           ----
     Total                  5%          23%           (1)%         52%           87%           (5)%           6%            53%
                       ======         ====          ====         ====          ====          ====          ====           ====

1992 OPERATING INCOME

Pipeline & Other          $32           NA            NA           NA          $134          $ 13          $111             NA
Processing                 57           NA            NA           NA             9           108            26             NA
                       ------         ----          ----         ----          ----          ----          ----           ----
     Total                $89          $42           $32          $31          $143          $121          $137            $69
                       ======         ====          ====         ====          ====          ====          ====           ====

     % Processing          64%          NA            NA           NA             6%           89%           20%            NA

2 year CAGR
     Pipeline & Other     (20%)         NA            NA           NA            75%          (25%)           2%            NA
     Processing             3           NA            NA           NA             4            (7)           12             NA
                       ------         ----          ----         ----          ----          ----          ----           ----
     Total                (7)%          NA            21%          35%           65%          (10)%           4%            46%
                       ======         ====          ====         ====          ====          ====          ====           ====
</TABLE>




- --------------------
(1)  Operating income data based on gross margin because segment operating
     income is not available.
(2)  Pro Forma 1990 acquisitions; historical operating income data is not
     comparable.





                                                                              26
<PAGE>   28
SALOMON BROTHERS INC


Publicly-Traded Comparable Companies


SELECTED OPERATING STATISTICS


<TABLE>
<CAPTION>
                                                          American   Associated
                                                           Oil &       Natural         Tejas          USX-       Western
                                              VLP         Gas (1)        Gas            Gas           Delhi        Gas
                                            ------       ---------   ----------       ---------    ---------     ---------
<S>                                         <C>          <C>          <C>             <C>           <C>          <C>
SELECTED NATURAL GAS
GATHERING DATA                                                                   
     Miles of Systems Pipeline               7,200         5,634         4,068         2,626 (2)    8,379         9,314
     Connected Oil & Gas Wells                  NA            NA         4,170            NA           NA            NA
     Dedicated Reserves (bcf)                   NA            NA            NA            NA        1,650 (3)     1,207
                                                                                 
     Gathering Systems Throughput (bcf)                                          
          Sales                                326           208            NA           255 (7)      200            NA
          Transportation                       476            92            NA           166          103            NA
                                             -----         -----         -----         -----        -----         ----- 
     Total Net Throughput                      802           300           246 (4)       421          303           214
                                                                                 
                                                                                 
     GAS PROCESSING DATA                                                         
          Number of Operating Plants            10             9            14 (6)         7           14            31
          Total Number of Plants                10            10            14             8           21            31
                                                                                 
          NGL Sales (mbbls)                 34,274         4,745         6,422         1,191        5,358        15,738
          Processing Capacity (mmcf/day)     1,700           255 (5)        NA           175        1,046 (8)     1,124
          Gas Throughput (mmcf/day)             NA           221           419            73           NA           580
</TABLE>





- --------------------
(1)  Includes acquisition of Maple Gas Corp.
(2)  Includes 230 miles of a joint venture.
(3)  Includes 218 bcf from the Marathon Group.
(4)  Includes 92/bcf/yr. in facilities operated by the Company but owned by
     third parties.  
(5)  Includes 55 mmcfpd processed at third-party owned sites.  
(6)  Includes four fractionation facilities.  
(7)  Includes 75 bcfpd of off-system throughput.  
(8)  Source: Oil & Gas Journal, 7/22/91.  Includes 17 plants only.





                                                                              27
<PAGE>   29
SALOMON BROTHERS INC


Comparable M&A Transactions


<TABLE>
<CAPTION>
                                 ISSUES/ASSUMPTIONS                                               
- -----------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>
o  Lack of Public Information             Many of the transactions listed are either private companies or are subsidiaries of  
                                          public companies, so the amount of public information available is limited.

o  Multiples vs. DCF                      Although we use a multiple of EBDIAT as an approximate measure of value, buyers 
                                          primarily utilize a DCF approach.  Therefore, these multiples reflect the buyers' 
                                          views of value, potential synergies, tax benefits, etc.

o  Leverage Sensitivity                   Due to the high degree of leverage, equity value of the VLP units implied by multiples
                                          is extremely sensitive.
</TABLE>





                                                                              28
<PAGE>   30
SALOMON BROTHERS INC


Comparable M&A Transactions


MANY OF THE PREVIOUS M&A TRANSACTIONS AND THE PRICES PAID FOR COMPANIES IN THE
GATHERING, TRANSMISSION AND PROCESSING SECTOR ARE NOT DIRECTLY COMPARABLE TO
VLP

<TABLE>
<CAPTION>
             COMPANY                       COMMENTS                        
- ----------------------------------         ---------------------------------------------------------------------------
<S>                                        <C>
LIG                                        Has been sold three times in the last five years.

Exxon Gas System                           Represented strategic value to Tejas due to location. Access to gas reserves and  
                                           tie-in capability with all interstate pipelines.

Louisiana Resources                        Enron needed it for their other gas systems.  Not a large acquisition for Enron.

UGPL                                       Company was on verge of bankruptcy.  Koch used a  DCF with implied benefits due to 
                                           step-up in tax basis and significant overhead cuts.
</TABLE>





                                                                              29
<PAGE>   31
SALOMON BROTHERS INC


Comparable M&A Transactions


RECENT COMPARABLE M&A TRANSACTIONS


<TABLE>
<CAPTION>
               DATE                                                    FIRM
            ANNOUNCED                     ACQUIRING COMPANY/           VALUE                FIRM VALUE/
            (CLOSING)                      ACQUIRED COMPANY          (millions)             LTM EBDIAT
          -------------                  -----------------------    ------------           -------------
            <S>                           <C>                          <C>                  <C>
              5/5/93                      Equitable/                   $185                     8.0x (a)
            (6/30/93)                        LIG (Arkla)

              5/3/93                      Tejas/                       $380                     7.9x
            (9/15/93)                        Exxon Gas Supply

             2/11/93                      Enron Corp./                 $170                    10.6x
            (3/31/93)                        Louisiana Resources Co.

             10/30/92                     Koch Industries/             $385                     7.7x
            (11/15/92)                       United Gas Pipeline

                                                                                                 
                                                   Salomon Reference 
                                                               Range:                       7.0x - 8.0x
</TABLE>


- --------------------

(a)    Multiple is of revised 1993 estimated EBDIAT.





                                                                              30
<PAGE>   32
SALOMON BROTHERS INC


Discounted Cash Flow Analysis

<TABLE>
<CAPTION>
                                 ISSUES/ASSUMPTIONS                                               
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>
o  Projections                            Management's most recent projections as Base Case with Salomon sensitivity to discount 
                                          rates, growth rates and changes to operating income which incorporate potential changes 
                                          in costs, gas sales and transportation prices and volumes.

o  Taxes                                  Utilizes a "flow-through" entity cash flow approach with 0% taxes due to the partnership 
                                          structure.  The discount rate is also adjusted to reflect the absence of a corporate tax
                                          shield on interest expense.


o  Discount Rate                          Calculated using the CAPM with weighted average cost of capital based on comparable 
                                          companies and VLP's pre-tax cost of debt.  Assumes VLP's marginal corporate tax rate is 
                                          0% due to the partnership structure.

o  Leverage Sensitivity                   Due to the high degree of leverage, the equity value of the units implied by the DCF 
                                          analysis is extremely sensitive to small changes in critical variables.
</TABLE>





                                                                              31
<PAGE>   33
SALOMON BROTHERS INC


Discounted Cash Flow Analysis


[Confidential Treatment Has Been Requested]


                                                                              32
<PAGE>   34
SALOMON BROTHERS INC


Weighted Average Cost of Capital Analysis


<TABLE>
<CAPTION>
                                    EQUITY         COST OF       DEBT/CAP         ASSET
     COMPANY                       BETA (a)      EQUITY (b)        RATIO        BETA (c)
<S>                                 <C>             <C>            <C>            <C>
American Oil & Gas                   0.81           11.9%          28.8%          0.64
Associated Natural Gas               0.68           11.0%          26.3%          0.55
Tejas Gas                            0.76           11.5%          40.6%          0.53
Western Gas Resources                0.85           12.2%          22.8%          0.71
USX-Delhi Group                      1.06           13.7%          32.7%          0.81


Median                               0.81           11.9%          28.8%          0.64


Average                              0.83           12.1%          30.2%          0.65



ASSUMPTIONS
Risk-Free Rate (30 year TSY):        6.00%
Marginal Tax Rate for Comparables:  35.00%
Marginal Tax Rate for Target:        0.00%
Equity Risk Premium:                 7.30%
</TABLE>



<TABLE>
<CAPTION>
      USING MEDIAN:                                                      WEIGHTED AVERAGE COST OF CAPITAL (e)
         TARGET                       EQUITY         COST OF                PRE-TAX COST OF DEBT ASSUMPTION
     DEBT/CAP RATIO                  BETA (d)      EQUITY (b)         8.0%       8.5%      9.0%     9.5%     10.0%
          <S>                          <C>            <C>            <C>        <C>       <C>      <C>       <C>
          30.0%                        0.92           12.7%          11.3%      11.4%     11.6%    11.7%     11.9%
          40.0%                        1.07           13.8%          11.5%      11.7%     11.9%    12.1%     12.3%
          50.0%                        1.28           15.4%          11.7%      11.9%     12.2%    12.4%     12.7%
          60.0%                        1.60           17.7%          11.9%      12.2%     12.5%    12.8%     13.1%
          70.0%                        2.14           21.6%          12.1%      12.4%     12.8%    13.1%     13.5%
          80.0%                        3.21           29.4%          12.3%      12.7%     13.1%    13.5%     13.9%
</TABLE>


(a)  Source:  Salomon Brothers' estimate using 5 years of weekly data (where
     available).
(b)  Cost of Equity = Risk-Free Rate + (Equity Beta x Equity Risk Premium) +
     Political Risk Premium.
(c)  Asset (unlevered) beta = Equity beta/(1 + (debt/equity) x (1 - marginal
     tax rate))
(d)  Relevered equity beta = Median (Average) asset beta x (1 + (debt/equity) x
     (1 - marginal tax rate))
(e)  Weighted Average Cost of Capital = [After-tax cost of debt x target
     debt/cap ratio] + [After-tax cost of equity x (1 - target debt/cap ratio)]





                                                                              33
<PAGE>   35
SALOMON BROTHERS INC




REVIEW OF
TRANSACTION
STRUCTURE





                                                                              34
<PAGE>   36
SALOMON BROTHERS INC


Transaction Structure

     o   Considerations in evaluating alternative transaction structures:

            -   Tax consequences of the transaction to VLO and VLP unitholders
            -   Form of the offer (i.e. merger vs. tender offer)
            -   Type of security to exchange or issue (i.e. Convert vs. common)
            -   Consideration offered (i.e. securities exchanged vs. cash)





                                                                              35
<PAGE>   37
SALOMON BROTHERS INC


Transaction Structure

TAX CONSEQUENCES OF THE TRANSACTIONS

     o   A tax-free transaction would have several significant disadvantages:

            -   Non-taxable transaction  would entail  a complex legal
                structure requiring a  vote of  VLO shareholders, as  well as
                additional expense and uncertainties.

            -   VLO would not be able to step-up basis in VLP.

     o   We have therefore assumed for purposes of our analysis that a
         transaction would be taxable to unitholders.





                                                                              36
<PAGE>   38
SALOMON BROTHERS INC


Transaction Structure


FORM OF THE OFFER (MERGER VS. TENDER OFFER)


<TABLE>
<CAPTION>
                                 EXCHANGE OF SECURITIES                                    CASH OFFER
                   -----------------------------------------------    -----------------------------------------------------
<S>                <C>                                                <C>
MERGER ISSUES
                   o  Proxy statement/prospectus reviewed by          o  Separate proxy statement and prospectus,
                      SEC in advance                                     each reviewed by SEC in advance
                   o  Roll up rule disclosure requirements            o  Roll up rule inapplicable; Rule 13e-3 disclosure
                   o  Proxy statement/prospectus must be mailed          applies
                      to unitholders 60 days before vote (roll up     o  Proxy statement must be mailed about 30 days
                      rules)                                             before vote to permit time for solicitation.
                   o  All units acquired at once                         Saves about 30 days compared with merger
                                                                         including exchange of securities
                                                                      o  Price underwritten offer after merger vote; close  
                                                                         merger and offering simultaneously.  No risk of one
                                                                         closing without the other
                                                                      o  All units acquired at once

TENDER ISSUES
                   o  Offer to exchange/prospectus reviewed by        o  Tender offer can commence without prior SEC
                      SEC in advance                                     review. Amendment may be required. Offer
                   o  Roll up rule disclosure requirements               must be kept open only 20 business days
                   o  Offer to exchange/prospectus must be               (potentially required to be extended by up to 10
                      mailed to unitholders 60 days before               business days following certain amendments)
                      expiration
</TABLE>





                                                                              37
<PAGE>   39
SALOMON BROTHERS INC


Transaction Structure


FORM OF THE OFFER (MERGER VS. TENDER OFFER ISSUES)


<TABLE>
<CAPTION>
                                 EXCHANGE OF SECURITIES                                     CASH OFFER
                   -----------------------------------------------    -----------------------------------------------------
<S>                <C>                                                <C>
TENDER ISSUES
(CONTINUED)
                   o  Second step merger with information             o  Roll up rule inapplicable;  Rule 13e-3 disclosure
                      statement/prospectus required to complete          applies
                      100% acquisition                                o  Prospectus for offering reviewed by SEC in advance
                                                                      o  May save about 4-6 weeks compared with cash  merger; about
                                                                         8-10 weeks compared with exchange of securities
                                                                      o  Complex timing issues with respect to closing financing and
                                                                         tender offer; theoretical risk of closing financing without
                                                                         merger occurring
                                                                      o  If tender offer results in 90% ownership, remaining units
                                                                         can be acquired in ten days at same price under partnership
                                                                         agreement
                                                                      o  If tender offer does not result in 90% ownership, second
                                                                         step merger (with information statement) required to
                                                                         complete 100% acquisition
</TABLE>



WE HAVE CONCLUDED THAT THE TRANSACTION SHOULD BE COMPLETED VIA MERGER IN
EITHER THE EXCHANGE OF SECURITIES OR THE CASH OFFER SCENARIOS.





                                                                              38
<PAGE>   40
 SALOMON BROTHERS INC


Transaction Structure

CONSIDERATION OFFERED:  EXCHANGE OF SECURITIES OR CASH

     o   We have analyzed two primary types of consideration to be offered to
         VLP unitholders

            -   Offer VLO Convert directly to unitholders ("exchange of
                securities")

            -   Offer cash to unitholders with cash raised via a simultaneous
                underwritten equity offering to new investors ("cash offer")

TYPE OF SECURITY TO EXCHANGE OR ISSUE

     o   Pro forma alternative transaction assumes a Convertible Preferred
         Stock ("Convert") for the following reasons:

            -   Some type of equity offering contributes to improve debt ratios

            -   Avoids issuing common stock at current market

            -   Avoids adding additional debt on top of $680 million of VLP
                debt which will be consolidated post-transaction

            -   Convert market is currently very attractive (See Appendix C).

    o   However, there are some considerations to financing with VLO common:

            -   Common may be slightly more beneficial to EPS than Convert,
                although less beneficial to Cash Flow per share

            -   Dividend requirements on Convert are not tax deductible

            -   Common would be viewed more positively by rating agencies

            -   Common would advisably be sold through an underwritten
                offering with a roadshow rather than exchanged directly for
                VLP units

     o   VLO may wish to wait until talking to the rating agencies before
         deciding on whether to issue Convert or common.





                                                                              39
<PAGE>   41
SALOMON BROTHERS INC


Exchange of Securities via Merger

TRANSACTION SUMMARY



                                   [GRAPH E]


     o   VLO offers Convertible Preferred ("Convert") in Exchange for VLP
         units. Some unitholders may sell their units following the
         announcement of a transaction rather than wait until the exchange
         offer is complete.

     o   Unitholders may sell the Convert if they need liquidity. Market
         makers and traditional convertible buyers may not bid aggressively
         for the Convert since retail investors have small holdings and the
         issue is not actively traded. However, if the price for the
         Convert has been driven down in relation to comparable securities,
         brokers (and hedge funds) may be induced by profit to aggregate
         small retail positions and sell to convert buyers (largely
         institutional investors).

     o   Convert buyers purchase Convert.

     o   Convert trades at fair market value on a fully distributed basis after
         a period time.





                                                                              40
<PAGE>   42
SALOMON BROTHERS INC


Exchange of Securities via Merger

MECHANICS OF TRANSACTION

     o   VLO Board approves an offer of VLO Convert with specified terms to VLP
         unitholders.

     o   VLO then communicates offer in detail to VNGC Board of Directors.

     o   VNGC Board of Directors would likely set up a Special Committee of
         independent directors to consider VLO's offer.

     o   Public announcement of offer and Special Committee.

     o   Special Committee would hire a financial advisor and legal counsel and
         would analyze the proposal.

     o   Special Committee would then negotiate with VLO.

     o   If a transaction is approved by the Special Committee, a
         Proxy/Prospectus would be filed with the SEC.

     o   Following a review by the SEC, the Proxy materials would be mailed to
         unitholders.

     o   Unitholders would then have 60 days to consider the offer before
         voting, since the offer of securities would be subject to SEC roll-up
         rules.

     o   Unitholders vote and the merger is completed.

     o   Unitholders receive Convert.





                                                                              41
<PAGE>   43

SALOMON BROTHERS INC


             Merger/Exchange of Securities - Preliminary Timetable



                                    [CHART]





                                                                              42
<PAGE>   44
SALOMON BROTHERS INC



Exchange of Securities via Merger

REDISTRIBUTION OF CONVERT TO NATURAL HOLDERS

         o   A 6.5% Convert provides investors with a significant yield
             pickup over the 5.5% current yield of the VLP units.  This may
             mitigate holders' tendency to sell the Convert.

         o   However, in a taxable transaction, holders will tend to either
             sell their units prior to the exchange or sell the Convert
             received.

                  -   Retail investors are often passive if the
                      transaction requires no action; the need to
                      pay taxes could encourage them to sell their
                      entire Convert holdings.

                  -   Retail brokers often encourage unitholders to
                      sell the distributed securities in order to
                      generate additional commissions and
                      reposition their portfolios.

                  -   Certain investors may chose to sell units
                      before year end for 1993 tax purposes.

         o   If a large number of unitholders elect to sell either their
             units or the new Convert, then the Convert will be
             redistributed over time to natural holders of Converts.

         o   The $100 billion Convert market is efficient in pricing
             outstanding Converts in the secondary market. Hedge funds and
             broker/dealers hold around $30 billion of Converts and ensure
             efficient pricing.





                                                                              43
<PAGE>   45
SALOMON BROTHERS INC


Exchange of Securities via Merger

REDISTRIBUTION OF CONVERT TO NATURAL HOLDERS (CONTINUED)

         o   In other MLP buy-ins where holders were offered securities,
             many holders either sold their units upon the announcement of
             the transaction or sold the distributed securities soon after
             a transaction was consummated.  The resulting price pressure
             in the security can make it more difficult for unitholders who
             want to sell to obtain full value until the securities trade
             on a fully distributed basis.

         o   Retail investors, making up the vast majority of VLP
             Unitholders, are not natural owners of Converts.  Converts are
             primarily held by institutions.  For example, the $275 million
             Ashland Oil Convert is 59% institutional, $100 million Tosco
             Convert is 60% institutional and Diamond Shamrock's $100
             million 144A Convert is 100% institutional (held by Qualified
             Institutional Buyers).

         o   Because the VLP Unitholders who receive a Convert in the
             exchange offer will typically receive small amounts,
             intermediation by securities firms will be necessary to effect
             redistribution.  However, most institutional firms will only
             bid for even lots (multiples of 100).

         o   To induce securities firms to undertake this intermediation, a
             sufficient arbitrage must be available to cover transaction
             costs and provide an adequate profit.  As part of the
             redistribution, hedge funds and securities firms will purchase
             the Converts and short the VLO stock.

         o   As a result, we would expect that a Convert may trade down
             until the securities are in hands of natural buyers (i.e.
             fully distributed).





                                                                              44
<PAGE>   46
SALOMON BROTHERS INC


Exchange of Securities via Merger

STRATEGY FOR SETTING THE TERMS ON THE CONVERT IN AN EXCHANGE OF SECURITIES

         o   Key decision is which of the Convert terms should be set in
             conjunction with the offer to the special committee.

         o   If terms are fully set in initial proposal, the Special
             Committee may be forced to reconsider its approval if either
             interest rates or the VLO stock price change prior to the
             closing.

         o   It may be desirable to stipulate the dividend rate at the time
             the offer is made and let the conversion price be set just
             prior to the closing, based on a predetermined formula.

         o   No precedent to using Convert under these circumstances.

         o   Terms of Convert will vary based on rating agency reactions
             and VLO's stock price reaction on announcement.

         o   THE KEY POINT IS THAT IN THIS CASE, THE TERMS OF THE CONVERT
             WILL BE SET THROUGH NEGOTIATION WITH THE SPECIAL COMMITTEE,
             NOT BY THE MARKET.

         o   Trading of VLO's underlying common will be significantly
             affected by arbitrageurs shorting VLO to hedge their
             positions.





                                                                              45
<PAGE>   47
SALOMON BROTHERS INC


Cash Offer via Merger

TRANSACTION SUMMARY


                                    [GRAPH]

         o   VLO makes cash offer via a merger transaction to unitholders.

         o   VLO simultaneously offers a new Convert issue to the public
             market.  Proceeds are used to purchase VLP units for cash.

         o   Closing of the cash merger and pricing of the underwritten
             Convert are almost simultaneous.





                                                                              46
<PAGE>   48
SALOMON BROTHERS INC


Cash Offer via Merger

MECHANICS OF TRANSACTION

         o   VLO Board approves of cash offer for VLP units subject to
             financing.

         o   VLO communicates offer to VNGC Board of Directors.

         o   VNGC Board of Directors would then set up a Special Committee
             of independent directors to consider VLO's offer.  Special
             Committee would select a financial advisor and legal counsel
             to evaluate offer.

         o   VNGC Board would announce that it had received an offer from
             VLO to be financed with a new Convert issue and that a Special
             Committee had been formed to consider the offer.

         o   VLO would promptly file registration statement for the Convert
             with the SEC.

               -   registration statement would include Pro Forma financial 
                   statements and Use of Proceeds.

         o   Special Committee would negotiate with VLO.

         o   If a transaction has been approved by the Special Committee,
             VLO may need to file an amended Registration Statement for the
             Convert.

         o   Following a review by the SEC, proxy statement would be mailed
             to unitholders.

         o   VLP unitholders would vote on the merger after 30 days.

         o   VLO would formally market and price the Convert offering
             immediately after the unitholder vote.

         o   Merger and convert issue completed simultaneously; unitholders
             receive cash.





                                                                              47
<PAGE>   49
SALOMON BROTHERS INC


Cash Merger - Preliminary Timetable





                                    [CHART]





                                                                              48
<PAGE>   50
SALOMON BROTHERS INC


Roadshows

CASH MERGER WITH UNDERWRITTEN CONVERT OFFERING WILL ALLOW A ROADSHOW
PRESENTATION TO INVESTMENT COMMUNITY

         o   Traditional equity buyers or buy-side analysts may wish to
             attend the roadshow

         o   Effective marketing of story could benefit VLO

INDICATIVE ROADSHOW SCHEDULE FOR CONVERT PUBLIC OFFERING:

<TABLE>
                 <S>                                                                 <C>
                 New York                                                            One-on-ones, Lunch
                 Boston                                                              One-on-ones, Lunch
                 Los Angeles/San Francisco                                           One-on-ones, Lunch (LA)
                 Chicago/Minneapolis                                                 One-on-ones, Lunch (Chicago)
                 *Philadelphia/Baltimore                                             One-on-ones, Lunch (Philadelphia)
                 *Houston/Denver                                                     One-on-ones, Lunch (Denver)
</TABLE>

EXCHANGE OFFER

No Roadshow - all retail ownership

         -   No incentive for institutions to attend

         -   Conference call with equity analysts and investors

- ---------------------
*    Optional cities.





                                                                              49
<PAGE>   51
SALOMON BROTHERS INC


Convertible Preferred ("Convert") Pricing and Terms


[Confidential Treatment Has Been Requested]


                                                                              50
<PAGE>   52
SALOMON BROTHERS INC


Comparing Exchange of Securities to Cash

<TABLE>
<CAPTION>
                 MERGER/EXCHANGE OF SECURITIES                                       CASH MERGER
<S>                                                                <C>     
MARKET FACTORS:

o    Little risk of new issue Convert market drying up.            o   Attractive new issue Convert market today.

o    Equity market conditions affect rate and conversion           o   VLO will be committed to cash transaction at a
     price, but not ability to complete a transaction.                 specific price without knowing the precise terms of
                                                                       its financing.
o    Value of the Convert could move significantly with
     movements in equity market or price of common prior
     to completion.  This could force the Special
     Committee to reconsider approval.

o    No controlled marketing for Convert.  Arbs will
     determine trading.  This risk may impact Special
     Committee's negotiations on terms.

UNITHOLDERS' PREFERENCE FACTORS:

o    Offers unitholders a continuing interest in the               o   Gives unitholders cash to pay taxes.
     business.
                                                                   o   Easy for unitholders to tell what value they are
o    However, retail investors are not generally the                   getting - "Cash is cash".
     natural buyers for Converts.
                                                                   o    Does not provide a continuing interest in the business if
o    Even if Convert yield is higher than the yield on the              so desired by the unitholder.
     VLP units, brokers still have the incentive to induce
     unitholders to sell to get cash to pay the tax.
</TABLE>





                                                                              51
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SALOMON BROTHERS INC

Comparing Exchange or Securities to Cash

<TABLE>
<CAPTION>
                 MERGER/EXCHANGE OF SECURITIES
<S>                                                                <C>      
VALUATION EASE                                                                                  CASH MERGER

o    In precedent MLP buy-ins where securities were given,         o   "Cash is cash".
     significant selling took place.  The resulting price
     pressure makes it more difficult for unitholders to
     assess the actual value.

o    The more variables in the transaction, the more
     difficult it is to assess what the value is.  The
     Convert has several variables which could change
     while the transaction is open.

VLO MANAGEMENT TIME AND COST:

o    No issuance costs or marketing required.                      o   Would allow (or require) roadshow.

o    Special Committee required to approve terms of                o   Underwriting fees.
     securities as well as price paid to unitholders.


OVERALL TIMING - SEC REVIEW/DISCLOSURE/UNITHOLDER REVIEW:

o    Would fall under SEC roll-up rules and would probably         o   Does not fall under SEC roll-up rules - can be
     take at least 30 days longer to complete.                         completed more quickly.

o    Requires 60-day review period by unitholders.                 o   Does not require 60-day waiting period between
                                                                       mailing of proxy statement and vote.

                                                                   o   Requires two separate sets of SEC filings -
                                                                       registration statement for public Convert and proxy
                                                                       statement for VLP unitholders.
</TABLE>





                                                                              52
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SALOMON BROTHERS INC

Comparing Exchange of Securities to Cash

<TABLE>
<CAPTION>
MERGER/EXCHANGE OF SECURITIES                                                                   CASH MERGER
<S>                                                                <C>     
EASE OF EXECUTION:

o    One stop transaction - no public offering on parallel         o   No need to convince Special Committee or unitholders
     path.                                                             of value of securities.

o    The Convert has several variables which if market             o   Convert is marketed to natural buyers.
     conditions change, the special committee and their
     investment banker could withdraw their fairness               o   Need to match the timing of the public offering with
     opinion prior to the merger.                                      completion of the merger.

CREDIT/RATING AGENCY FLEXIBILITY:

o    Exchange offer does not allow for increasing the size         o   May raise additional proceeds through a larger
     of the Convert if necessary for credit reasons or to              offering in response to rating agencies or covenants.
     conform to convenants.

IMPACT ON VLO STOCK PRICE:

o    Greater hedge fund activity (shorting VLO common              o   Roadshow could allow the company to communicate its
     stock) because the Converts would not be distributed              rationale for the transaction and future strategy.
     to "buy and hold" institutional fund managers.
                                                                   o   Some hedge fund activity takes place in the secondary
                                                                       market even in a well distributed offering.
</TABLE>





                                                                              53
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SALOMON BROTHERS INC


                               PRO FORMA ANALYSIS





                                                                              54
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SALOMON BROTHERS INC


Price & Volume Profile of VLO



                           VALERO ENERGY CORPORATION
                     DAILY DATA - 12/30/88 THROUGH 10/1/93


                                    [GRAPH]

Valero Energy Corporation: Price (left axis)
Valero Energy Corporation: Volume (right axis)





                                                                              55
<PAGE>   57
SALOMON BROTHERS INC


Price Profile of VLO vs. Index of Refiners

                           VALERO ENERGY CORPORATION
                      DAILY DATA - 1/1/91 THROUGH 10/1/93

                                    [GRAPH]


Valero Energy Corporation
Index of Refiners (ASH, CNPA, DRM, FI, HOC, SUN, TOS, ULR)





                                                                              56
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SALOMON BROTHERS INC



Pro Forma Analysis

CONSIDERATIONS:

         o   We analyze several areas to assess the pro forma impact on VLO
             including:

                 -   Equity research coverage

                 -   Valuation ratios and market pricing issues 
                     (E.P.S., cash flow, multiples of EBDIAT)

                 -   Credit ratios and business issues

                 -   Sensitivity analysis to key factors

BASE ASSUMPTIONS:

         o   Management projections and consolidating journal entries for
             VLO and VLP

         o   Assume purchase price of VLP units is $11.00

         o   Assume dividend rate on Convert of 6.50%





                                                                              57
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SALOMON BROTHERS INC

Equity Research Coverage

WE EXPECT RESEARCH ANALYSTS AND WALL STREET WILL CONTINUE TO TRADE AND FOLLOW
VLO PRIMARILY AS A REFINER.

         o   VLO is currently followed by refining equity research analysts
             at the major Wall Street firms although it already owns 49% of
             VLP.  VLP is covered by equity research primarily at small and
             regional firms.

         o   The intrastate pipeline and gas processing sector is also not
             well covered by equity research analysts at major firms.

         o   Refining will still contribute to the majority of the cash
             flow and stock price volatility in VLO.

         o   Refining has been "good" to Wall Street and the analysts who
             have followed VLO will not give up coverage easily or
             immediately.

         o   Interstate gas pipeline equity research analysts at major Wall
             Street firms have a somewhat negative view of the intrastate
             and processing component of interstate pipelines that they
             follow.





                                                                              58
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SALOMON BROTHERS INC

Gas Transmission & Processing Research Coverage

THE GTP SECTOR IS VERY THINLY COVERED BY MAJOR WALL STREET EQUITY ANALYSTS



<TABLE>
<CAPTION>
                                              Associated                              Western
                                  American     Natural                                  Gas      Total Per
                                     O&G         Gas       Tejas Gas   USX-Delhi     Resources      Firm
<S>                                   <C>         <C>          <C>         <C>           <C>         <C>
CS First Boston                                                                                      0
Goldman, Sachs                                                                           X           1
Lehman Brothers                                                X           X                         2
Merrill Lynch                         X                                                              1
Morgan Stanley                        X                                    X                         2
Salomon Brothers                                                           X                         1
Smith Barney                                                                             X           1
                                  ---------   ---------    ---------   ---------     ---------   
    Subtotal                          2           0            1           3             2

DLJ                                   X           X            X                         X           4
Howard Weil                           X           X                                      X           3
Kidder Peabody                        X                                                              1
Oppenheimer                                       X                        X             X           3
Prudential                                                                               X           1
Raucher Pierce                        X           X                        X             X           4
                                  ---------   ---------    ---------   ---------     ---------   
Total per Company                     6           4            2           5             7
                                  =========   =========    =========   =========     =========   
</TABLE>




                                                                              59
<PAGE>   61
SALOMON BROTHERS INC


Equity Market Reaction

IMPACT ON VLO STOCK PRICE

         o   Limited price impact expected upon full dissemination of
             information regarding the transaction

                 -   VLO already owns 49% of VLP and also owns 100% of some 
                     natural gas assets.

                 -   Increased leverage will be viewed negatively.

                          o   In general, leveraged companies trade at lower 
                              multiples.

                 -   Some benefit from diversified earnings and
                     elimination of uncertainty as to future
                     intent of VLP.  Communicating rationale for
                     the buy-in and future strategy to investors
                     is critical.

                 -   Neutral to accretive on EPS and cash flow per share.

         o   Analysts will still view VLO as a refiner.

                 -   However, demonstrated growth in gas business
                     will influence future trading multiples.

         o   Volatility in VLO stock price will probably still be driven by
             refining.

         o   Financial impact on VLO is complex and requires good
             communication with analysts and investors.

IMPACT ON VLP UNIT PRICE

         o   If offer cash, will move almost to the offer price.

         o   If offer securities, may move close to the offer price.

                  -   Depends on how specific the Convert terms are on 
                      announcement.





                                                                              60
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SALOMON BROTHERS INC

Pro Forma Analysis

PRO FORMA FINANCIAL RESULTS (A)
(Dollars in millions, except per share amounts)

[Confidential Treatment Has Been Requested]



                                                                              61
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SALOMON BROTHERS INC

Pro Forma Analysis

COMPARISON OF SEGMENT AND COMPANY MULTIPLES


[Confidential Treatment Has Been Requested]



                                                                              62
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SALOMON BROTHERS INC


Valero Energy Corporation





                                    [GRAPH]

[Confidential Treatment Has Been Requested]




                                                                              63
<PAGE>   65
SALOMON BROTHERS INC


Valero Energy Corporation





                                    [GRAPH]

[Confidential Treatment Has Been Requested]





                                                                              64
<PAGE>   66
SALOMON BROTHERS INC

Pro Forma Analysis

[Confidential Treatment Has Been Requested]





                                                                              65
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SALOMON BROTHERS INC

Pro Forma Analysis

PRO FORMA SENSITIVITY ANALYSIS TO ISSUING COMMON STOCK
(Dollars in million, except per share amounts)

[Confidential Treatment Has Been Requested]





                                                                              66
<PAGE>   68
SALOMON BROTHERS INC

Pro Forma Credit Analysis

[Confidential Treatment Has Been Requested]





                                                                              67
<PAGE>   69
SALOMON BROTHERS INC

Pro Forma Credit Analysis

[Confidential Treatment Has Been Requested]





                                                                              68
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SALOMON BROTHERS INC

Pro Forma Credit Analysis


                                    [GRAPH]


[Confidential Treatment Has Been Requested]





                                                                              69
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SALOMON BROTHERS INC

Pro Forma Credit Analysis

[Confidential Treatment Has Been Requested]





                                                                              70
<PAGE>   72
SALOMON BROTHERS INC


Pro Forma Credit Analysis

[Confidential Treatment Has Been Requested]





                                                                              71
<PAGE>   73
SALOMON BROTHERS INC


Estimated Transaction Costs

[Confidential Treatment Has Been Requested]





                                                                              72
<PAGE>   74
SALOMON BROTHERS INC


Follow-Up Discussions and Issues

        o   Rating Agencies

        o   Negotiations with Lenders and Debt Holders

        o   Board Meeting

        o   Analyst Meetings

        o   Response to VLO and VLP Inquiries

        o   Internal Communication

        o   Drafting of Documents





                                                                              73
<PAGE>   75
SALOMON BROTHERS INC



APPENDICES





                                                                              74
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SALOMON BROTHERS INC




DETAILED DCF MODEL

[Confidential Treatment Has Been Requested]





                                                                              75
<PAGE>   77
     SALOMON BROTHERS INC




     DETAILED PRO FORMA

     COMBINATION MODEL

                  [Confidential Treatment Has Been Requested]


<PAGE>   78

SALOMON BROTHERS INC




STOCK PRICE
PERFORMANCE GRAPHS





                                                                              77
<PAGE>   79
SALOMON BROTHERS INC

Price Profile of VLP vs. Index

                        VALERO NATURAL GAS PARTNERS, LP
                      DAILY DATA - 1/1/91 THROUGH 10/1/93

                                   [graph 78]

_________         Valero Natural Gas Partners, LP
- ---------         Index of Intrastate Pipeline Companies (AOG,DGP,NGA,TEJ,WGR)





                                                                              78
<PAGE>   80
SALOMON BROTHERS INC

Price (%) Profile

                      WEEKLY DATA - 1/5/90 THROUGH 10/1/93

                                   [chart 79]


Valero Natural Gas Partners, L.P.              Buckeye Partners, L.P.
Kaneb Pipe Line Partners, L.P.                 TEPPCO Partners, L.P.
Lakehead Pipe Line Partners, L.P.              Enron Liquids Pipeline, L.P.
Santa Fe Pacific Pipeline Partners, L.P.






                                                                              79
<PAGE>   81
SALOMON BROTHERS INC

Yield Profile

                     WEEKLY DATA - 1/5/90/ THROUGH 10/1/93

                                   [chart 80]
<TABLE>
<CAPTION>
                                                              Summary Statistics:
                                                      High       Low    Average      Latest
          <S>                                        <C>        <C>      <C>          <C>
          Valero Natural Gas Partners, L.P.          31.25%     5.19%    15.83%       5.41%
          Buckeye Partners, L.P.                     11.24%     6.93%     9.26%       7.05%
          Kaneb Pipe Line Partners, L.P.             15.44%     2.59%    10.68%       8.26%
          TEPPCO Partners, L.P.                      13.33%     0.80%     9.73%       7.93%
          Lakehead Pipe Line Partners, L.P.          11.04%     7.23%     9.13%       7.23%
          Enron Liquids Pipeline, L.P.                9.21%     7.39%     8.09%       7.96%
          Santa Fe Pacific Pipeline Partners, L.P.   10.95%     7.00%     8.54%       7.34%
</TABLE>





                                                                              80
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SALOMON BROTHERS INC

GATHERING,
TRANSMISSION AND
PROCESSING
COMPARABLES





                                                                              81
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SALOMON BROTHERS INC




         GAS TRANSMISSION & PROCESSING COMPANIES - COMPARABLE ANALYSIS

                 Dollars in Millions, except per Share Amounts




<TABLE>
<CAPTION>
                                                                                                               ANNUAL     AVG. DAILY
                                           PRICE    MARKET     FIRM      TOTAL    BOOK        LTM             DIVIDEND      TRADING
                                          10/6/93    VALUE   VALUE (a)   DEBT   VALUE (b)    SALES     CASH   PER SHARE      VOLUME
                                          -------    -----   ---------   ----   ---------    -----     ----   ---------      ------
<S>                                       <C>        <C>      <C>        <C>      <C>       <C>        <C>      <C>        <C>
  PUBLICLY TRADED COMPANIES                                                                                              
AOG  American Oil and Gas Corporation (f) $12.000     $308     $385      $86      $188       $504      $10      $0.00      21,694
NGA  Associated Natural Gas Corporation    36.875      481      609      149       164      1,320       20       0.12      28,136
TEJ  Tejas Gas Corporation (g)             59.375      610    1,019      369       234        988       11       0.00      13,316
DGP  USX-Delhi Group (k)                   22.875      322      413       89       203        503        0       0.20    
WGR  Western Gas Resources                 44.625    1,143    1,361      152       299        716        9       0.20      63,058
                                                                                                                         
  FILED TRANSACTIONS                                                                                                     
     Aquila Gas Pipeline                   14,000      419      529      129       134        214       19       0.05    
     Trident NGL, Inc. (j)                 26,500      486      809      348       267        636       25       0.10    
</TABLE>                                 




<TABLE>
<CAPTION>
                                              EARNINGS PER SHARE (c)         CASH FLOW PER SHARE (d)             EBDIAT (e) 
                                          ----------------------------   ------------------------------   -------------------------
                                            LTM      1993E     1994E       LTM       1993E      1994E       LTM    1993E     1994E
                                            ---      -----     -----       ---       -----      -----       ---    -----     -----
<S>                                         <C>      <C>       <C>         <C>       <C>        <C>         <C>      <C>      <C>
  PUBLICLY TRADED COMPANIES                                                                             
AOG   American Oil and Gas Corporation      $0.51    $0.69     $0.97       $1.12     $1.39      $1.67       $45      $52      $63
NGA   Associated Natural Gas Corporation     1.46     1.49      1.88        3.58      3.55       3.94        65       67       75
TEJS  Tejas Gas Corporation                  2.20     1.63      2.28        5.74      4.32       4.97        98       89      100
DGP   USX-Delhi Group                        1.35     1.39      1.74        4.27      4.28       4.63        77       85       95
WGR   Western Gas Resources, Inc.            1.55     1.78      2.26        3.10      3.30       3.78       105      116      134
                                                                                                        
  FILED TRANSACTIONS                                                                                    
      Aquila Gas Pipeline                    0.82       NA        NA        2.11        NA         NA        65       NA       NA
      Trident NGL, Inc.                      1.39       NA        NA        3.93        NA         NA       109       NA       NA
</TABLE>                                 
<PAGE>   84

         GAS TRANSMISSION & PROCESSING COMPANIES - COMPARABLE ANALYSIS

VALUATION INDICATORS

<TABLE>
<CAPTION>
                                                PRICE/EARNINGS                   PRICE/CASH FLOW              FIRM VALUE/EBDIAT  
                                          ----------------------------    -----------------------------    -------------------------
                                            LTM      1993E     1994E        LTM       1993E      1994E       LTM    1993E     1994E
                                            ---      -----     -----        ---       -----      -----       ---    -----     -----
<S>                                         <C>       <C>      <C>          <C>        <C>        <C>        <C>      <C>      <C>
  PUBLICLY TRADED COMPANIES                                                                            
AOG   American Oil and Gas Corporation       23.7x     17.4x    12.4x        10.7x      8.6x       7.2x       8.6x     7.4x     6.1x
NGA   Associated Natural Gas Corporation     25.2      24.7     19.6         10.3      10.4        9.4        9.4      9.1      8.1
TEJS  Tejas Gas Corporation                  27.0      36.4     26.0         10.3      13.8       12.0       10.4     11.4     10.2
DGP   USX-Delhi Group                        16.9      16.5     13.1          5.4       5.3        4.9        5.4      4.8      4.4
WGR   Western Gas Resources, Inc.            28.8      25.1     19.7         14.4      13.5       11.8       13.0     11.7     10.1
                                                                                                       
            HIGH:                            28.8      36.4     26.0         14.4      13.8       12.0       13.0     11.7     10.2
            AVERAGE:                         24.3      24.0     18.2         10.2      10.3        9.1        9.4      8.9      7.8
            MEDIAN:                          25.2      24.7     19.6         10.3      10.4        9.4        9.4      9.1      8.1
            LOW:                             16.9      16.5     12.4          5.4       5.3        4.9        5.4      4.8      4.4
                                                                                                       
  FILED TRANSACTIONS                                                                                   
      Aquila Gas Pipeline                    17.1        NA       NA          6.6        NA         NA        8.1       NA       NA
      Trident NGL, Inc.                      19.1        NA       NA          6.7        NA         NA        7.4       NA       NA
</TABLE>                                 

CREDIT STATISTICS
<TABLE>
<CAPTION>
                                                DEBT/CAP                                              
                                         ----------------------                                       LTM   
                                             BOOK      MARKET                DIVIDEND   DIVIDEND    EBDIAT/      PRICE/
                                             CAP         CAP       YIELD     COVERAGE    PAYOUT    INTEREST    BOOK VALUE
                                             ---         ---       -----     --------    ------    --------    ----------
<S>                                          <C>         <C>         <C>       <C>        <C>        <C>          <C>
   PUBLICLY TRADED COMPANIES
AOG   American Oil and Gas Corporation       32%         22%         0.0%        NM        0%         5.2x        1.6x
NGA   Associated Natural Gas Corporation     44%         24%         0.2%      12.2        8%         5.2         2.9
TEJS  Tejas Gas Corporation                  56%         38%         0.0%        NM        0%         3.8         2.6
DGP   USX-Delhi Group                        31%         22%         0.9%       6.8       15%        14.2         1.6
WGR   Western Gas Resources, Inc.            29%         12%         0.4%       7.7       13%        11.7         3.8

          HIGH:                              56%         38%         0.9%      12.2x      15%        14.2x        3.8x
          AVERAGE:                           38%         23%         0.3%       8.9        7%         8.0         2.5
          MEDIAN:                            32%         22%         0.2%       7.7        8%         5.2         2.6
          LOW:                               29%         12%         0.0%       6.8        0%         3.8         1.6

   FILED TRANSACTIONS
      Aquila Gas Pipeline                    48%         24%          NA         NA       NA          8.3         3.1
      Trident NGL, Inc.                      57%         42%         0.4%      13.9        7%         2.7         1.8
</TABLE>
<PAGE>   85
PROFITABILITY AND RETURN RATIOS
<TABLE>
<CAPTION>
                                                                  NET                                                               
                                    GROSS   EBDIAT/    EBIT     INCOME/     EBDIAT/    NET INCOME/  EBDIAT/   NET INCOME/   EBDIAT/
                                    MARGIN  REVENUE   REVENUE   REVENUE   TOT ASSETS   TOT ASSETS     PP&E       PP&E     FIRM VALUE
                                    ------  -------   -------   -------   ----------   ----------     ----       ----     ----------
<S>                                 <C>       <C>      <C>       <C>         <C>         <C>         <C>         <C>         <C> 
PUBLICLY TRADED COMPANIES                                                                                                        
  American Oil and Gas Corporation   17%        9%       6%        3%         12%          3%         17%          5%         12%
  Associated Natural Gas Corporation  8%        5%       3%        1%         12%          4%         19%          6%         11%
  Tejas Gas Corporation              15%       10%       7%        2%         12%          3%         17%          4%         10%
  USX-Delhi Group                    23%       15%       7%        4%         14%          3%         15%          4%         19%
  Western Gas Resources, Inc.        26%       15%      10%        6%         17%          7%         22%          8%          8%
                                                                                                                                 
       HIGH:                         26%       15%      10%        6%         17%          7%         22%          8%         19%
       AVERAGE:                      18%       11%       7%        3%         13%          4%         18%          5%         12%
       MEDIAN:                       17%       10%       7%        3%         12%          3%         17%          5%         11%
       LOW:                           8%        5%       3%        1%         12%          3%         15%          4%          8%
                                                                                                                                 
FILED TRANSACTIONS                                                                                                               
  Aquila Gas Pipeline                20%       30%      23%       11%         17%          7%         22%          8%         12%
  Trident NGL, Inc.                   NA       17%      12%        4%         15%          3%         19%          4%         13%
</TABLE>                                 


OPERATING PERFORMANCE
<TABLE>
<CAPTION>
                                                                                                             ($/MMCF/YR)          
                                                                                                        -------------------------
                                             MILES OF     THROUGH-     REVENUE/         EBDIAT/         REVENUE/        EBDIAT/
                                             PIPELINE        PUT       PIPELINE         PIPELINE        THROUGHOUT     THROUGHOUT
                                             --------        ---       --------         --------        ----------     ----------
<S>                                           <C>           <C>         <C>             <C>              <C>              <C>
PUBLICLY TRADED COMPANIES                
     American Oil and Gas Corporation          5,634          877        89,446          7,938            1,574             140
     Associated Natural Gas Corporation        4,400          808       299,899         14,730            4,474             220
     Tejas Gas Corporation                     2,626        1,079       376,085         37,167            2,508             248
     USX-Delhi Group                           8,557          798        58,806          8,940            1,728             263
     Western Gas Resources, Inc.               9,258          580        77,342         11,315            3,382             495
                                         
          HIGH:                                9,258        1,079       376,085         37,167            4,474             495
          AVERAGE:                             6,095          828       180,316         16,018            2,733             273
          MEDIAN:                              5,634          808        89,446         11,315            2,508             248
          LOW:                                 2,626          580        58,806          7,938            1,574             140
                                         
FILED TRANSACTIONS                       
     Aquila Gas Pipeline                      22,235        1,439         9,642          2,932              408             124
     Trident NGL, Inc.                         8,000           52        79,550         13,575           33,530           5,722
</TABLE>                                 
<PAGE>   86
SALOMON BROTHERS INC





REFINING AND 
MARKETING 
COMPARABLES
<PAGE>   87
SALOMON BROTHERS INC


                         REFINING & MARKETING COMPANIES
                                 FINANCIAL DATA


<TABLE>
<CAPTION>
                                          EQUITY
                               10/6/93    MARKET      TOTAL     BOOK               FIRM       BOOK     MARKET
COMPANY                         PRICE      VALUE      DEBT     EQUITY     CASH     VALUE      CAP.      CAP.  
- ------------                  ---------  ---------  --------  --------  --------  -------   --------  --------
<S>                             <C>         <C>     <C>       <C>        <C>      <C>       <C>       <C>
Ashland Oil, Inc.               $35,125     $2,106  $1,633.8  $1,407.8   $ 51.0   $3,989.2  $3,041.2  $4,040.2
Crown Central Petroleum Corp.    13.750        136      61.5     295.3     31.8      166.1     356.7     197.9
Diamond Shamrock Inc.            24.750        713     528.5     536.9     12.5    1,314.9   1,065.4   1,327.4
FINA, Inc.                       69.750      1,088     968.6   1,115.5      7.2    2,049.0   2,084.0   2,056.2
Holly Corporation                29.375        242      90.0      36.4      1.4      331.0     126.4     332.4
Sun Company                      29,625      3,156     939.0   1,909.0    100.0    4,377.8   2,848.0   4,094.8
Tosco Corporation                28.250        827     507.7     404.0     91.4    1,358.2     911.7   1,449.6
Ultramar Corporation             24.750        944     512.8     529.4    155.6    1,301.8   1,042.2   1,457.2

Valero Energy Corporation       $24.000     $1,034    $551.9    $853.6     $7.8   $1,578.6   1,405.5  $1,586.4


</TABLE>
<TABLE>
<CAPTION>
                                    LTM        LTM      LTM     LTM     LTM      LTM         LTM     NET ASSET
Company                          REVENUES   INTEREST   DD&A   EBITDA   EBIT   CASH FLOW    EARNINGS    VALUE  
- ------------                     --------   --------   ----   ------   ----   ---------    --------  ---------
<S>                              <C>         <C>      <C>     <C>     <C>       <C>          <C>        <C>
Ashland Oil, Inc.                 $10,391    $140.8   $305.8  $517.4  $211.6    $389.0       $77.0      $35.80
Crown Central Petroleum Corp.       1,826       7.7     42.1    37.3    (4.8)     24.6       (16.7)         NA
Diamond Shamrock Inc.               2,647      45.0     59.1   148.1    89.0      98.9        33.5       21.14
FINA, Inc.                          3,627      58.1    204.7   298.8    94.1     242.0        37.3          NA
Holly Corporation                     619       9.8     11.6    49.4    37.8      33.0        19.8          NA
Sun Company                        10,064      92.0    392.0   662.0   270.0     314.1       104.1       33.84
Tosco Corporation                   3,914      45.0    115.8   297.2   181.4     199.3        74.4       26.27
Ultramar Corporation                2,556      52.7     35.0   182.2   147.3     105.4        45.3       20.54

Valero Energy Corporation          $1,285     $49.8    $70.6  $217.6  $147.1    $161.1       $75.3      $25.02
</TABLE>





                                                                                
<PAGE>   88
SALOMON BROTHERS INC

                         REFINING & MARKETING COMPANIES
                               CREDIT STATISTICS

<TABLE>
<CAPTION>
                                    DEBT RATING                  DEBT/                     DEBT/                   DIVIDEND        
                                -----------------    ------------------------------  -------------------    -----------------------
COMPANY                          MOODY'S    S&P      BOOK CAP  MRKT. CAP      BOOK   EBITDA    CASH FLOW    STATED  YIELD    PAYOUT
- ------------                    --------- -------    --------  ---------     ------  ------    ---------    ------  -----    ------
<S>                              <C>         <C>        <C>        <C>        <C>      <C>        <C>       <C>       <C>    <C>
Ashland Oil, Inc.                Baa1        BBB        54%        40%        116%     3.2x       4.2x      $1.00     2.8%    77.9%
Crown Central Petroleum Corp.      NA         NA        17%        31%         21%      1.6        2.5       0.00     0.0%     0.0%
Diamond Shamrock Inc.            Baa2        BBB        50%        40%         98%      3.6        5.3       0.52     2.1%    44.7%
FINA, Inc.                         NA         NA        46%        47%         87%      3.2        4.0       0.00     0.0%     0.0%
Holly Corporation                  NA         NA        71%        27%        247%      1.8        2.7       0.00     0.0%     0.0%
Sun Company                      Baa1         A-        33%        23%         49%      1.4        3.0       1.80     6.1%   184.1%
Tosco Corporation                 Ba1        BB+        56%        35%        126%      1.7        2.5       0.60     2.1%    23.6%
Ultramar Corporation             Baa3        BBB        49%        35%         97%      2.8        4.9       1.10     4.4%    92.7%

HIGH:                                                   71%        47%        247%     3.6x       5.3x       1.80     6.1%   184.1%
AVERAGE:                                                47%        35%        105%      2.4        3.6       0.63     2.2%    52.9%
MEDIAN:                                                 49%        35%         98%      2.3        3.5       0.56     2.1%    34.2%
LOW:                                                    17%        23%         21%      1.4        2.5       0.00     0.0%     0.0%


Valero Energy Corporation        Baa3       BBB-        39%        35%         65%     2.5x       3.4x      $0.44     1.8%    25.2%
</TABLE>


<TABLE>
<CAPTION>
                                        LTM                           EBDIAT / INTEREST                             LTM
                                      EBIT /       -------------------------------------------------------      CASH FLOW /
COMPANY                              INTEREST       1989        1990        1991           1992      LTM          INTEREST
- --------------------                -----------    -------     ------      ------         ------   -------      ------------
<S>                                    <C>          <C>         <C>          <C>           <C>        <C>           <C>
Ashland Oil, Inc.                       1.5x         5.6x        5.0x        4.2x          3.3x       3.7x          2.8x
Crown Central Petroleum Corp.          (0.6)        28.9        29.8         2.9           4.2        4.8           3.2
Diamond Shamrock Inc.                   2.0          5.7         5.3         3.6           3.0        3.3           2.2
FINA, Inc.                              1.6          4.5         5.2         4.0           4.3        5.1           4.2
Holly Corporation                       3.9         10.0         9.1         5.6           2.2        5.1           3.4
Sun Company                             2.9          6.2         7.8         5.8           6.7        7.2           3.4
Tosco Corporation                       4.0          2.9         7.6         5.9           6.2        6.6           4.4
Ultramar Corporation                    2.8          5.2         2.9         3.9           3.7        3.5           2.0


HIGH:                                   4.0x        28.9x       29.8x        5.9x          6.7x       7.2x          4.4x
AVERAGE:                                2.3          8.6         9.1         4.5           4.2        4.9           3.2
MEDIAN:                                 2.4          5.6         6.5         4.1           3.9        4.9           3.3
LOW:                                   (0.6)         2.9         2.9         2.9           2.2        3.3           2.0

Valero Energy Corporation               3.0x         3.4x        5.0x        2.8x          2.9x       4.4x          3.2x
</TABLE>





                                                                                
<PAGE>   89
SALOMON BROTHERS INC

                         REFINING & MARKETING COMPANIES
                                 FINANCIAL DATA


<TABLE>
<CAPTION>
                                                          EARNINGS PER SHARE                  
                                   ------------------------------------------------------------
COMPANY                              1990       1991       1992     LTM        1993       1994   
- ----------------                   -------    -------    -------  -------    -------    ------- 
<S>                                 <C>        <C>        <C>      <C>        <C>        <C>     
Ashland Oil, Inc.                   $3.22      $2.59      $1.07    $1.28      $1.95      $2.60   
Crown Central Petroleum Corp.        2.51      (0.69)     (1.27)   (1.70)      0.75       2.00   
Diamond Shamrock Inc.                3.15       1.39       0.92     1.16       1.61       2.12   
FINA, Inc.                           8.11       2.71       1.55     2.39         NA         NA      
Holly Corporation                    2.86       1.30       0.39     2.40       2.64       3.30   
Sun Company                          1.86      (0.25)      0.21     0.98       1.45       1.83   
Tosco Corporation                    4.78       2.09       1.24     2.54       2.16       2.76   
Ultramar Corporation                 1.41       2.65       1.90     1.19       2.07       2.72   
                                                                                                 
HIGH:                               $8.11      $2.71      $1.90    $2.54      $2.64      $3.30   
AVERAGE:                             3.49       1.47       0.75     1.28       1.80       2.48   
MEDIAN:                              3.01       1.74       0.99     1.24       1.95       2.60   
LOW:                                 1.41      (0.69)     (1.27)   (1.70)      0.75       1.83   
                                                                                                 
                                                                                                 
Valero Energy Corporation           $2.31      $2.44      $2.16    $1.75         *          *
</TABLE>

*[Confidential Treatment Has Been Requested]

<TABLE>
<CAPTION>
                                                         CASH FLOW PER SHARE                                
                                      --------------------------------------------------------
COMPANY                                 1990      1991      1992     LTM       1993     1994           
- ----------------                      -------   -------   -------  -------   -------   ------- 
<S>                                   <C>       <C>       <C>      <C>        <C>       <C>            
Ashland Oil, Inc.                      $7.50     $7.27     $6.11    $6.49     $7.05     $7.70          
Crown Central Petroleum Corp.           5.98      3.83      2.87     2.50      5.03      6.28          
Diamond Shamrock Inc.                   5.11      3.60      2.75     3.43      3.66      4.17          
FINA, Inc.                             20.64     15.76     14.27    15.52        NA        NA             
Holly Corporation                       4.19      2.75      1.72     4.00      4.04      4.70          
Sun Company                             6.63      4.07      2.39     2.95      5.13      5.51          
Tosco Corporation                       6.21      3.54      3.40     6.81      6.12      6.72          
Ultramar Corporation                    1.95      3.94      3.14     2.76      2.99      3.64          
                                                                                                       
HIGH:                                 $20.64    $15.76    $14.27   $15.52     $7.05     $7.70          
AVERAGE:                                7.28      5.60      4.58     5.56      4.86      5.53          
MEDIAN:                                 6.10      3.88      3.00     3.72      5.03      5.51          
LOW:                                    1.95      2.75      1.72     2.50      2.99      3.64          
                                                                                                       
                                                                                                       
Valero Energy Corporation              $4.66     $4.90     $4.32    $3.74        *         *
</TABLE>

*[Confidential Treatment Has Been Requested]

<TABLE>
<CAPTION>
                                                          EBITDA                                  
                                    -------------------------------------------------             BOOK            NET ASSET
COMPANY                              1989       1990       1991    1992         LTM              EQUITY             VALUE
- ----------------                    ------     ------     ------  ------      -------          ---------          ----------
<S>                                  <C>        <C>        <C>      <C>        <C>             <C>                   <C>
Ashland Oil, Inc.                    $513       $603       $530     $440       $517            $1,407.8              $35.80
Crown Central Petroleum Corp.          57         81         24       33         37               295.3                  NA
Diamond Shamrock Inc.                 158        199        135      132        148               536.9               21.14
FINA, Inc.                            377        453        321      266        299             1,115.5                  NA
Holly Corporation                      57         50         31       23         49                36.4                  NA
Sun Company                           929        964        644      649        662             1,909.0               33.84
Tosco Corporation                     133        246        135      149        297               404.0               26.27
Ultramar Corporation                  224        173        231      181        182               529.4               20.54


HIGH:                                $929       $964       $644     $649       $662            $1,909.0              $35.80
AVERAGE:                              306        346        256      234        274               779.3               27.52
MEDIAN:                               191        222        183      165        240               533.2               26.27
LOW:                                   57         50         24       23         37                36.4               20.54


Valero Energy Corporation             $84       $122       $105     $136       $218              $853.6              $25.02
</TABLE>






<PAGE>   90
SALOMON BROTHERS INC

                         REFINING & MARKETING COMPANIES
                               TRADING MULTIPLES


<TABLE>
<CAPTION>
                                                          PRICE / EARNINGS                      
                                   ------------------------------------------------------------
COMPANY                              1990       1991       1992     LTM        1993       1994     
- --------------------               -------    -------    -------  ------     -------    -------
<S>                                 <C>        <C>       <C>       <C>        <C>        <C>       
Ashland Oil, Inc.                   10.9x      13.6x      32.9x    27.4x      18.0x      13.5x     
Crown Central Petroleum Corp.        5.5        NM         NM       NM        18.3        6.9      
Diamond Shamrock Inc.                7.9       17.8       26.9     21.3       15.4       11.7      
FINA, Inc.                           8.6       25.7       45.0     29.2        NA         NA        
Holly Corporation                   10.3       22.6       75.3     12.2       11.1        8.9      
Sun Company                         15.9        NM       143.1     30.3       20.4       16.2      
Tosco Corporation                    5.9       13.5       22.8     11.1       13.1       10.2      
Ultramar Corporation                17.5        9.3       13.0     20.9       12.0        9.1      

                       HIGH:        17.5x      25.7x     143.1x    30.3x      20.4x      16.2x     
                       AVERAGE:     10.3       17.1       51.3     21.8       15.5       10.9      
                       MEDIAN:       9.4       15.7       32.9     21.3       15.4       10.2      
                       LOW:          5.5        9.3       13.0     11.1       11.1        6.9      

Valero Energy Corporation           10.4x       9.8x      11.1x    13.7x        *          *
</TABLE>

*[Confidential Treatment Has Been Requested]

<TABLE>
<CAPTION>                          
                                                         PRICE / CASH FLOW                    
                                     -------------------------------------------------------    
COMPANY                               1990      1991      1992    LTM      1993       1994       
- ---------------------                ------   -------   -------  ------   -------    -------
<S>                                  <C>       <C>       <C>      <C>        <C>       <C>        
Ashland Oil, Inc.                     4.7x      4.8x      5.8x     5.4x      5.0x      4.6x      
Crown Central Petroleum Corp.         2.3       3.6       4.8      5.5       2.7       2.2       
Diamond Shamrock Inc.                 4.8       6.9       9.0      7.2       6.8       5.9       
FINA, Inc.                            3.4       4.4       4.9      4.5       NA        NA         
Holly Corporation                     7.0      10.7      17.1      7.3       7.3       6.2       
Sun Company                           4.5       7.3      12.4     10.0       5.8       5.4       
Tosco Corporation                     4.5       8.0       8.3      4.1       4.6       4.2       
Ultramar Corporation                 12.7       6.3       7.9      9.0       8.3       6.8       

                       HIGH:         12.7x     10.7x     17.1x    10.0x      8.3x      6.8x      
                       AVERAGE:       5.5       6.5       8.8      6.6       5.8       5.0       
                       MEDIAN:        4.6       6.6       8.1      6.4       5.8       5.4       
                       LOW:           2.3       3.6       4.8      4.1       2.7       2.2

Valero Energy Corporation             5.2x      4.9x      5.6x     6.4x       *         *
</TABLE>

*[Confidential Treatment Has Been Requested]

<TABLE>
<CAPTION>
                                                        FIRM VALUE/EBITDA                                         PRICE /
                                       ------------------------------------------------          PRICE/          NET ASSET
COMPANY                                 1989      1990        1991     1992       LTM             BOOK             VALUE
- -------------------                    ------    ------      ------   ------     ------         --------         ----------
<S>                                    <C>        <C>        <C>      <C>         <C>            <C>                <C>
Ashland Oil, Inc.                       7.8x       6.6x       7.5x     9.1x       7.7x            150%                98%
Crown Central Petroleum Corp.           2.9        2.0        7.0      5.1        4.4              46                 NA
Diamond Shamrock Inc.                   8.3        6.6        9.8      9.9        8.9             133                117
FINA, Inc.                              5.4        4.5        6.4      7.7        6.9              98                 NA
Holly Corporation                       5.8        6.7       10.8     14.6        6.7             665                 NA
Sun Company                             4.7        4.5        6.8      6.7        6.6             165                 88
Tosco Corporation                      10.2        5.5       10.1      9.1        4.6             205                108
Ultramar Corporation                    5.8        7.5        5.6      7.2        7.1             178                120

                            HIGH:      10.2x       7.5x      10.8x    14.6x       8.9x            665%               120%
                            AVERAGE:    6.4        5.5        8.0      8.7        6.6             205                106
                            MEDIAN:     5.8        6.1        7.2      8.4        6.8             157                108
                            LOW:        2.9        2.0        5.6      5.1        4.4              46                 88

Valero Energy Corporation              18.8x      12.9x      15.0x    11.6x       7.3x            121%                96%
</TABLE>





<PAGE>   91
        Figures as of 06/30/93.
        Firm Value: market capitalization+total debt+minority
           interest+preferred stock (liquidation value)-cash.
        Tangible Book Value: shareholders; equity less intangible assets.
        Earnings per share for 1992 and 1993 are median First Call estimates.
        Cash Flow=Net Income available to common shareholders + Depreciation
           and Amortization + Amortization of Deferred Turnaround Charges.
        EBDIAT: Earnings before depreciation, interest, amortization and taxes.
           1993 EBDIAT is calculated as 1993 estimated earnings plus LTM 
           depreciation, interest, amortization and taxes.
ASHLAND OIL, INC.
        Excludes cumulative effect of accounting changes, charges for its
           retirement program, environmental provisions, asset write-downs, 
           Riley-related reserves and other unusual items.
        LTM pro forma for Nov. 19, 1992 $250 mm 8.8% Debenture issue and May
          1993 cumulative convertible preferred stock issue.
CROWN CENTRAL PETROLEUM CORPORATION
        Excludes cumulative effect of changes in account principles in 1992 and
           sales of property, plant & equipment in 1990, 1991, 1992 and LTM 
           1993.
        Excludes proceeds from the sale of property, plant & equipment in all
           stated years.
DIAMOND SHAMROCK
        Excludes cumulative effect of accounting changes ($17 mm after-tax).
FINA, INC.
        Excludes for 1992 a $34.2 mm charge for the cumulative effect of a
           change in accounting treatment regarding postretirement benefits.
        Second quarter earnings exclude other income related to asset sales,
           proceeds form insurance and $62 mm cumulative effect of accounting 
           change.
HOLLY CORPORATION
        Net income excludes other income related principally to settlements.
SUN COMPANY
        Excludes numerous special charges for all years, totaling (after tax)
           $809 mm, $(413) mm and a gain of $39 mm for 1992, 1991 and 1990, 
           respectively. Excludes gain on divestments of $61 mm and $(9) mm 
           for the second quarters of June 1993 and 1992 respectively.
TOSCO CORPORATION
        Excludes cumulative effect of changes in accounting and income (loss)
           from discontinued operations.
        LTM is pro forma for the acquisition of the Bayway refinery as if it
           had occurred on January 1, 1993.  Income statement data is pro forma 
           for the year ended December 31, 1992.
ULTRAMAR CORPORATION
        Pro forma historical data for the formation of Ultramar in April 1992.
           Pro forma information available in annual report (1992) and June 10Q.





<PAGE>   92
SALOMON BROTHERS INC

APPENDIX A
CASE STUDIES:
CONVERSION AND
LIQUIDATION





                                                                               1
<PAGE>   93
SALOMON BROTHERS INC
E
Recent MLP Buy-Ins


<TABLE>
<CAPTION>
 ANNOUNCEMENT                                  LIMITED             %        PREMIUM       TYPE OF        TRANSACTION      % YIELD  
     DATE             ACQUIROR            PARTNERSHIP/TARGET     OWNED       PAID      CONSIDERATION        VALUE        (PRE/POST)
- ------------- ------------------------  ---------------------   --------- ---------- -----------------   ----------      ---------- 
                                                                                                       ($ in millions)             
 <S>          <C>                        <C>                     <C>          <C>       <C>                 <C>        <C>         
  2/15/89     ENSERCH Corp.              ENSERCH Exploration     87%            7%      Common Stock        $153.2     10.8% / 3.7%
                                           Partners, Ltd.                                  & Cash                                 
                                                                                                                                  
 12/20/89     National Intergroup, Inc.  Permian Partners, L.P.   44%           34%         Cash               62.8     32% / NM 
                                                                                                                                  
  8/15/88     Apache Corp.               Apache Petroleum Co.     7%            7%      Common Stock         138.1     -% / 3.5% 
                                           L.P.                                                                            
                                                                                                                                  
  7/31/90     Freeport-McMoRan Inc.      Freeport-McMoRan        82%           44%      Common Stock         251.9     1.3% / 3.6%
                                           Oil & Gas Co.                                                                        
                                                                                                                                  
  11/1/89     Freeport-McMoRan Oil       Freeport-McMoRan        82%          None      Common Stock         207.8     24.1% / 1.0%
                & Gas Co.                  Energy Partners                                                                       
                                                                                                                                  
  6/11/90     Union Exploration          Union Exploration       95%          None      Common Stock         216.5     10.9% / 2.2%
                Corporation, Limited       Partners, Limited                                                                      
                                                                                                                                  
  9/10/93     Santa Fe Energy            Santa Fe Energy         91%           31%         Cash               28.3     10.7% / NM
                Resources, Inc.            Partners L.P.                                                                        
                                                                                                                                  
  8/12/93     Southland Royalty Co./     Permian Basin Royalty   33%           25%         Cash              151.4     9.3% / NM 
                Burlington Resources       Trust                                                                             
                Inc.                                                         
</TABLE>





                                                                               2
<PAGE>   94
SALOMON BROTHERS INC

Enserch Corporation


<TABLE>
<S>                                                <C>
Limited Partnership:                               ENSERCH Exploration Partners, Ltd. (EP)

Announcement Date:                                 February 15, 1989

Pre-Deal Ownership:                                87% owned by ENSERCH.  12.9 million units of ENSERCH Exploration Partners, Ltd.
                                                   were publicly held

IPO Price/Date of L.P.:                            $21 1/2 / April 23, 1985

Pre-Announcement Price:                            $11 1/8

Offer Price & Consideration:                       $11.875; .5 share of ENSERCH Corp. common stock, plus $1.00 cash

Aggregate Transaction Value:                       $153.2

Premium:                                           7%

Dividend Yield (Pre/Post):                         10.8% / 3.7%

Form of Transaction:                               Tender

% Outstanding Votes Required:                      Not Conditioned on any number of units being tendered

Consummation Date:                                 October 16, 1989

Description:                                       February 15, 1989, it was announced that EP's quarterly dividend rate would be
                                                   reduced to $.075 per unit.  ENSERCH announced initially that each unit would be
                                                   converted into a .5 share of stock.  Later, offer was sweetened to include an
                                                   additional $1.00 of cash
</TABLE>





- --------------------
Note:   Premium and dividend yield of L.P. is calculated five trading days
        prior to announcement at a price of $11.125.  Post-dividend yield is
        calculated five days prior to announcement at a price of $21.750.
        Stated annual dividends equal $1.20 and $.80 per share for EP and ENS,
        respectively.





                                                                               3
<PAGE>   95
SALOMON BROTHERS INC

Price & Volume Profile



                       ENSERCH EXPLORATION PARTNERS, LTD.
                     DAILY DATA - 12/15/88 THROUGH 10/16/89


                                    [GRAPH]


             ENSERCH EXPLORATION PARTNERS, LTD.: PRICE (LEFT AXIS)
             ENSERCH EXPLORATION PARTNERS, LTD.: VOLUME (RIGHT AXIS)





- --------------------
(a)     02/15/89:      Announced:

                       - Dividend reduced from $.30 to $.075.
                       - Conversion of each unit into .5 shares of ENSERCH
                         common stock, if over 505 convert, will liquidate.  
                       - Earnings announced.  
                       - Announced reduction of 1989 capital expenditures by
                         35%.

(b)     03/30/89       - Sweetened exchange after by adding $1.00 cash in
                         addition to the .5 shares of ENSERCH common stock.  
                       - Will not liquidate regardless of the percent of units
                         exchanged.





                                                                               4
<PAGE>   96
SALOMON BROTHERS INC

Price & Volume Profile


                              ENSERCH CORPORATION
                     DAILY DATA - 12/15/88 THROUGH 10/16/90

                                    [GRAPH]


                   ENSERCH CORPORATION: PRICE (LEFT AXIS)
                   ENSERCH CORPORATION: VOLUME (RIGHT AXIS)





- --------------------
(a)     02/15/89:      Announced:
                       - Dividend reduced from $.30 to $.075.
                       - Conversion of each unit into .5 shares of ENSERCH
                         common stock, if over 505 convert, will liquidate.  
                       - Earnings announced.  
                       - Announced reduction of 1989 capital expenditures 
                         by 35%.
(b)     03/30/89:      - Sweetened exchange after by adding $1.00 cash in
                         addition to the .5 shares of ENSERCH common stock.  
                       - Will not liquidate regardless of the percent of units
                         exchanged.
(c)     10/16/89:        Consummation Date.





                                                                               5
<PAGE>   97
SALOMON BROTHERS INC

National Intergroup Inc.



<TABLE>
<S>                                                <C>
Limited Partnership:                               Permlan Partners, L.P. (PPaPr)

Announcement Date:                                 December 20, 1989

Pre-Deal Ownership:                                National Intergroup Inc. (NII) owned about 45% of the outstanding units

IPO Price/Date of L.P.:                            $9 / June 5, 1987

Pre-Announcement Price:                            $3 5/8

Offer Price & Consideration:                       $4.85 in cash

Aggregate Transaction Value:                       $60 million tender offer

Premium:                                           34%

Dividend Yield (Pre/Post):                         32% / NM

Form of Transaction:                               Merger, changed to Tender offer

% Outstanding Votes Required:                      A Majority of the outstanding public units being tendered

Consummation Date:                                 November 11, 1990

Description:                                       Special Committee rejected $4.00 merger proposal on the basis the price was not
                                                   fair.  Subsequently, a $3.75 offer was extended to all unitholders.  When the
                                                   offer failed to induce the required number of shares to invoke conversion, the
                                                   offer was raised to $4.85 per unit.  NII finally offered 5 cents per unit to
                                                   brokers who persuaded their clients to approve the amendment
</TABLE>





- -------------------
Note:   Premium and dividend yield of L.P. is calculated five trading days
        prior to announcement at a price of $3.60.  Stated annual dividend of
        $1.15 per share of PPAPr.





                                                                               6
<PAGE>   98
SALOMON BROTHERS INC

Price & Volume Profile



                              PERMIAN PARTNERS L.P
                     DAILY DATA - 10/20/89 THROUGH 11/9/90


                                   [GRAPH]


                  PERMIAN PARTNERS L.P.: PRICE (LEFT AXIS)
                  PERMIAN PARTNERS L.P.: VOLUME (RIGHT AXIS)





- --------------------
(a)     12/20/89 Announcement.  Proposal to acquire units at a price of $4.00
        per unit.
(b)     05/18/90 Announcement.  $3.75 Tender offer.
(c)     07/09/90 Announcement.  Tender offer raised to $3.85 per unit.





                                                                               7
<PAGE>   99
SALOMON BROTHERS INC

Price & Volume Profile (d)



                            NATIONAL INTERGROUP, INC
                     DAILY DATA - 10/20/89 THROUGH 11/11/91


                                   [GRAPH]


                NATIONAL INTERGROUP, INC.: PRICE (LEFT AXIS)
                NATIONAL INTERGROUP, INC.: VOLUME (RIGHT AXIS)




- --------------------
(a)     12/20/89 Announcement.  Proposal to acquire units at a price of $4.00
        per unit.
(b)     05/18/90 Announcement.  $3.75 Tender offer.
(c)     07/09/90 Announcement.  Tender offer raised to $3.85 per unit.
(d)     11/13/90 Consummation Date.





                                                                               8
<PAGE>   100
SALOMON BROTHERS INC

Apache Corporation


<TABLE>
<S>                                                <C>
Limited Partnership:                               Apache Petroleum Co., L.P. (APC)

Announcement Date:                                 August 15, 1988

Pre-Deal Ownership:                                46.7 million units outstanding, 3.5 million, or 7% owned by Apache Corporation

IPO Price/Date of L.P.:                            18 3/4 / August 22, 1985

Pre-Announcement Price:                            $3

Offer Price & Consideration:                       $3.20; Unitholders received either 0.4 of a share of Apache Corp. common stock or
                                                   one share in Key Petroleum Co. per unit held

Aggregate Transaction Value:                       $138.1

Premium:                                           7%

Dividend Yield (Pre/Post):                         - / 3.5%

Form of Transaction:                               Tender

% Outstanding Votes Required:                      The plan requires the consent of 2/3 of the outstanding unitholders

Consummation Date:                                 October 12, 1988

Description:                                       Unitholders authorized the restructuring of the Partnership as a corporation.
                                                   Holders of Apache Petroleum Co., L.P. exchanged 0.4 share of Apache Corp. for
                                                   each unit tendered, or one share in Key Petroleum Co., a new company that will
                                                   own a proportionate share of the Limited Partnership's oil and gas properties,
                                                   thereby converting the limited partnership to a traditional corporate structure.
                                                   Unitholders take legal action alleging that the prospectus misrepresented the
                                                   offer and understated the value of APC units, settled for $6.75 million
</TABLE>





- --------------------
Note:   Premium and dividend yield of L.P. is calculated five trading days
        prior to announcement at a price of $3.00.  Post-dividend yield is
        calculated five days prior to announcement at a price of $8.00.  Stated
        annual dividend of $.28 per APA shared.





                                                                               9
<PAGE>   101
SALOMON BROTHERS INC

Price & Volume Profile



                       APACHE PETROLEUM DEPOSITARY UNITS
                     DAILY DATA - 6/15/88 THROUGH 10/12/88


                                    [GRAPH]


            APACHE PETROLEUM DEPOSITARY UNITS: PRICE (LEFT AXIS)
            APACHE PETROLEUM DEPOSITARY UNITS: VOLUME (RIGHT AXIS)





- --------------------
(a)     08/15/88:     Announces restructuring and offers a swap of .4 shares of
                      Apache Corp. or 1 share of Key Production Co., new
                      company that will own a proportionate share of the oil
                      and gas properties.
(b)     09/15/88:     Apache Corp. holders approve exchange of Apache Corp.
                      common stock.  
(c)     10/03/88:     Apache Petroleum holders approve restructuring through 
                      tender.





                                                                              10
<PAGE>   102
SALOMON BROTHERS INC

Price & Volume Profile



                              APACHE CORPORATION
                     DAILY DATA - 6/15/88 THROUGH 10/12/89


                                    [GRAPH]


             APACHE CORPORATION: PRICE (LEFT AXIS)
             APACHE CORPORATION: VOLUME (RIGHT AXIS)





- --------------------
(a)     08/15/88:     Announces restructuring and offers a swap of .4 shares of
                      Apache Corp. or 1 share of Key Production Co., new company
                      that will own a proportionate share of the oil and gas
                      properties.
(b)     09/15/88:     Apache Corp. holders approve exchange of Apache Corp.
                      common stock.  
(c)     10/03/88:     Apache Petroleum holders approve restructuring through 
                      tender.  
(d)     10/12/88:     Consummation Date.





                                                                              11
<PAGE>   103
SALOMON BROTHERS INC

Freeport-McMoRan Inc.

<TABLE>
<S>                                            <C>
Limited Partnership:                           Freeport-McMoRan Oil and Gas Company (FMOG)
                                      
Announcement Date:                             July 31, 1990
                                      
Pre-Deal Ownership:                            Freeport-McMoRan Inc. (FTX) owned an aggregate of 101.3 million shares, or 
                                               approximately 81.5% of the outstanding shares.  22.9 million shares of FMOG are 
                                               publicly held
                                      
IPO Price/Date of L.P.:                        $10 1/4 / April 2, 1990
                                      
Pre-Announcement Price:                        $7 5/8
                                      
Offer Price & Consideration:                   $11.00; Holders of FMOG will receive a fractional share of FTX based on the 
                                               conversion price
                                      
Aggregate Transaction Value:                   $251.9
                                      
Premium:                                       44%; Common stock of FTX
                                      
Dividend Yield (Pre/Post):                     1.3% / 3.6%
                                      
Form of Transaction:                           Merger
                                      
% Outstanding Votes Required:                  Since FTX owned 81.5%, the approval of the merger was assured without the consent of
                                               any other FMOG stockholder.
                                      
Consummation Date:                             November 15, 1990
                                      
Description:                                   Each publicly held share was converted into a fraction of a share of 
                                               Freeport-McMoRan Inc.  The fractional share received is based upon a value of 
                                               11.00 for FMOG and valuing FTX at an average of the composite tape closing prices 
                                               for the last 10 trading days prior to the formal FMOG shareholder approval (but not 
                                               more than 0.345 nor less than 0.283 of a share of FTX common stock).  The 
                                               consideration for each share of FMOG was increased from $10.50 to $11.00.
</TABLE>                              


- --------------------
Note:  Premium and dividend yield of L.P. is calculated five trading days prior
       to announcement at a price of $7.625.  Post-dividend yield is calculated
       five days prior to announcement at a price of $34.875.  Stated annual 
       dividend of $.10 and $1.25 per FMOG and FTX share, respectively.





                                                                              12
                                               
<PAGE>   104
SALOMON BROTHERS INC

Price & Volume Profile

                      FREEPORT-MCMORAN OIL AND GAS COMPANY
                     DAILY DATA - 5/31/90 THROUGH 11/15/90



                                   [ GRAPH ]




               FREEPORT-MCMORAN OIL AND GAS COMPANY:  PRICE (LEFT AXIS)
               FREEPORT-MCMORAN OIL AND GAS COMPANY:  VOLUME (RIGHT AXIS)



- --------------------
(a)  07/31/90 announcement.  $10.50 conversion of Freeport-McMoRan Oil & Gas
     Company into shares of Freeport-McMoRan Inc.  
(b)  11/15/90 Consummation Date.





                                                                              13
<PAGE>   105
SALOMON BROTHERS INC

Freeport-McMoRan Oil & Gas Company

<TABLE>
<S>                                               <C>
Limited Partnership:                              Freeport-McMoRan Energy Partners Ltd. (FMP)
                                      
Announcement Date:                                November 1, 1989
                                      
Pre-Deal Ownership:                               Freeport-McMoRan Inc. owned 81.5% of the outstanding shares of stock or 101.4 
                                                  million.  123.1 million units are outstanding
                                      
IPO Price/Date of L.P.:                           $22 / April 19, 1985
                                      
Pre-Announcement Price:                           $9 1/8
                                      
Offer Price & Consideration:                      $9.125.  Each partnership unit of Freeport-McMoRan Energy Partners was exchanged 
                                                  for one common share in Freeport-McMoRan Oil & Gas Co., a new publicly traded 
                                                  company
                                      
Aggregate Transaction Value:                      $198.0 stock for stock exchange
                                      
Premium:                                          None
                                      
Dividend Yield (Pre/Post):                        24.1% / 1.0%
                                      
Form of Transaction:                              Merger
                                      
% Outstanding Votes Required:                     Subject to the approval of the Majority Interest (FTX)
                                      
Consummation Date:                                April 2, 1990
                                      
Description:                                      Freeport-McMoRan Energy Partners Ltd. was converted from a master limited 
                                                  partnership to a publicly traded corporation listed on the NYSE.  Unitholders 
                                                  received two additional distribution payments of $0.55 per unit before the trust
                                                  was converted.
</TABLE>                              

- --------------------
Note:  Premium and dividend yield of L.P. is calculated five trading days prior
       to announcement at a price of $9.125.  Post-dividend yield is calculated 
       five days prior to announcement at a price of $10.250. Stated annual 
       dividend of $2.20 and $.10 per share for FMP and FMOG, respectively.





                                                                              14
<PAGE>   106
SALOMON BROTHERS INC

Price & Volume Profile

                     FREEPORT-MCMORAN ENERGY PARTNERS LTD.
                       DAILY DATA - 9/1/89 THROUGH 4/2/90



                                   [ GRAPH ]




                 FREEPORT-MCMORAN ENERGY PARTNERS LTD.:  PRICE (LEFT AXIS)
                 FREEPORT-MCMORAN ENERGY PARTNERS LTD.:  VOLUME (RIGHT AXIS)



- --------------------
(a)  11/1/89 announcement.  Freeport-McMoRan Energy to convert to publicly
     traded corp.





                                                                              15
<PAGE>   107
SALOMON BROTHERS INC

Price & Volume Profile

                             FREEPORT-MCMORAN INC.
                      DAILY DATA - 9/1/89 THROUGH 11/15/91




                                   [ GRAPH ]




                   FREEPORT-MCMORAN INC.:  PRICE (LEFT AXIS)
                   FREEPORT-MCMORAN INC.:  VOLUME (RIGHT AXIS)



- --------------------
(a)  11/01/89 announcement.  Conversion of Freeport-McMoRan Energy Partners to
     Freeport-McMoRan Oil & Gas Co.
(b)  03/30/90 Freeport-McMoRan Energy Partners Consummation Date.
(c)  07/31/90 announcement.  $10.50 conversion of Freeport-McMoRan Oil & Gas
     Company into shares of Freeport-McMoRan Inc.  
(d)  11/15/90 Freeport-McMoRan Oil & Gas Co. Consummation Date.





                                                                              16
<PAGE>   108
SALOMON BROTHERS INC


Unocal Exploration Corporation

<TABLE>
 <S>                                            <C>
 Limited Partnership:                           Union Exploration Partners, Ltd. (UXP)

 Announcement Date:                             June 11, 1990

 Pre-Deal Ownership:                            Unocal held a controlling 95% stake in the L.P.

 IPO Price/Date of L.P.:                        $22 / July 26, 1985

 Pre-Announcement Price:                        $18 1/8

 Offer Price & Consideration:                   $18.20.  Each unit holder received one share of the newly formed Unocal Exploration
                                                Corp., plus a $3.00 contingent cash distribution against price drops.

 Aggregate Transaction Value:                   $216.5 million.  Stock of newly formed Unocal Exploration Corporation.

 Premium:                                       None

 Dividend Yield (Pre/Post):                     10.9% / 2.2%

 Form of Transaction:                           Merger

 % Outstanding Votes Required:                  Union Oil's (a wholly owned subsidiary of Unocal) consent was necessary and 
                                                sufficient to approve the transaction

 Consummation Date:                             August 1, 1990

 Description:                                   Union Exploration Partners Ltd. (UXP) converted from a Limited Partnership to a
                                                Corporation. Unocal also provided a $3.00 contingent cash distribution to protect
                                                unitholders against price weakness.
</TABLE>

- --------------------
Note:    Premium and dividend yield of L.P. is calculated five trading days 
         prior to announcement at a price of $18.125.  Post-dividend yield is 
         calculated five days prior to announcement at a price of $18.125. 
         Stated annual dividend of $1.97 and $0.40 per share for UXP and UXC,
         respectively.





                                                                              17
<PAGE>   109
SALOMON BROTHERS INC

Price & Volume Profile

                        UNION EXPLORATION PARTNERS LTD.
                      DAILY DATA - 4/11/90 THROUGH 8/1/90


                                   [ GRAPH ]

               UNION EXPLORATION PARTNERS LTD.: PRICE (LEFT AXIS)
               UNION EXPLORATION PARTNERS LTD.: VOLUME (RIGHT AXIS)



- --------------------
(a) 06/11/90 announcement.  Union Exploration Partners, Ltd. to change to
    Unocal Exploration Corp.





                                                                              18
<PAGE>   110
SALOMON BROTHERS INC

Price & Volume Profile

                         UNOCAL EXPLORATION CORPORATION
                       DAILY DATA - 8/2/90 THROUGH 8/2/91


                                   [ GRAPH ]

               UNOCAL EXPLORATION CORPORATION:  PRICE (LEFT AXIS)
               UNOCAL EXPLORATION CORPORATION:  VOLUME (RIGHT AXIS)

- -------------------------
(a) 06/11/90 announcement.  Union Partners, Ltd. to change to
    Unocal Exploration Corp.





                                                                              19
<PAGE>   111
SALOMON BROTHERS INC


Santa Fe Energy Resources Inc.

<TABLE>
<S>                                             <C>

 Limited Partnership:                           Santa Fe Energy Partners L.P. (SFP)

 Announcement Date:                             September 10, 1993

 Pre-Deal Ownership:                            91%-owned affiliate of Santa Fe Energy Resources Inc. 5.75 million units were 
                                                redeemed

 IPO Price/Date of L.P.:                        $20 / January 14, 1986

 Pre-Announcement Price:                        $3 3/4

 Offer Price & Consideration:                   $4.9225 Cash

 Aggregate Transaction Value:                   $28.3 million

 Premium:                                       31.2%

 Dividend Yield (Pre/Post):                     10.7% / NM

 Form of Transaction:                           Merger

 % Outstanding Votes Required:                  Santa Fe Energy Resources Inc. owned a controlling interest

 Consummation Date:                             September 27, 1993

 Description:                                   5.75 million units of Santa Fe Energy Partners L.P. were redeemed at a price of
                                                $4.9225.  Santa Fe Energy Resources also exercised a right to purchase all 
                                                outstanding depository units and undeposited limited partner units.
</TABLE>


- -----------------------------
Note:   Premium and dividend yield of L.P. is calculated five trading days
        prior to announcement at a price of $3.75.  Stated annual dividend 
        of $.40 per SFP share.





                                                                              20
<PAGE>   112
SALOMON BROTHERS INC

Price & Volume Profile

                         SANTA FE ENERGY PARTNERS L.P.
                      DAILY DATA - 7/9/93 THROUGH 9/27/93


                                   [ GRAPH ]

               SANTA FE ENERGY PARTNERS L.P.:  PRICE (LEFT AXIS)
               SANTA FE ENERGY PARTNERS L.P.:  VOLUME (RIGHT AXIS)

- --------------------------
(a)  9/10/93 announcement.  Repurchase for a price of $4.9225.





                                                                              21
<PAGE>   113
SALOMON BROTHERS INC

Price & Volume Profile

                         SANTA FE ENERGY RESOURCES INC.
                      DAILY DATA - 7/9/93 THROUGH 10/1/93


                                  [ GRAPH ]

               SANTA FE ENERGY RESOURCES INC.:  PRICE (LEFT AXIS)
               SANTA FE ENERGY RESOURCES INC.:  VOLUME (RIGHT AXIS)

- --------------------------
(a)  9/10/93 announcement.  Repurchase for a price of $4.9225.
(b)  9/27/93 Consummation Date.





                                                                              22
<PAGE>   114
SALOMON BROTHERS INC

Southland Royalty Company/burlington Resources Inc.
<TABLE>
 <S>                                            <C>
 Limited Partnership:                           Permian Basin Royalty Trust (PBT)

 Announcement Date:                             August 12, 1993

 Pre-Deal Ownership:                            Southland Royalty Company, a wholly owned subsidiary of Burlington Resources Inc.,
                                                owned 15,390,576, or 33%, of the 46,608,796 units outstanding.

 IPO Price/Date of L.P.:                        $20 5/8 / October 1, 1980

 Pre-Announcement Price:                        $3 7/8

 Offer Price & Consideration:                   $4.85 cash per unit

 Aggregate Transaction Value:                   $151.4 million

 Premium:                                       25%

 Dividend Yield (Pre/Post):                     9.3% / NM

 Form of Transaction:                           Tender

 % Outstanding Votes Required:                  No approval is required

 Consummation Date:                             September 24, 1993

 Description:                                   Southland Royalty Company offered $4.85 per Permian Basin Royalty Trust unit.  In 
                                                1990, the purchaser held discussions with regarding the possible acquisition at a 
                                                price of $5.00 per unit, however, these discussion were terminated.
</TABLE>


- ----------------------------
Note:   Premium and dividend is calculated five trading days prior to
        announcement at a price of $3.875.  Stated annual dividend of 
        $.36 per PBT share.





                                                                              23
<PAGE>   115
SALOMON BROTHERS INC

Price & Volume Profile

                          PERMIAN BASIN ROYALTY TRUST
                      DAILY DATA - 6/11/93 THROUGH 9/24/93


                                   [ GRAPH ]

               PERMIAN BASIN ROYALTY TRUST:  PRICE (LEFT AXIS)
               PERMIAN BASIN ROYALTY TRUST:  VOLUME (RIGHT AXIS)

- ---------------------------
(a)  08/12/93 announcement.  Southland Royalty Company to offer $4.85 per unit.





                                                                              24
<PAGE>   116
SALOMON BROTHERS INC

Price & Volume Profile

                           BURLINGTON RESOURCES INC.
                      DAILY DATA - 6/11/93 THROUGH 10/1/93


                                   [ GRAPH ]

               BURLINGTON RESOURCES INC.:  PRICE (LEFT AXIS)
               BURLINGTON RESOURCES INC.:  VOLUME (RIGHT AXIS)

- ---------------------------
(a)  08/12/93 announcement.  Southland Royalty Company to offer $4.85 per unit.
(b)  09/24/93 Consummation Date.





                                                                              25
<PAGE>   117
SALOMON BROTHERS INC

APPENDIX B
CONVERTIBLE PREFERRED
STOCK AS
CONSIDERATION





                                                                            26
<PAGE>   118
SALOMON BROTHERS INC


Time Incorporated/Warner Communications, Inc.

<TABLE>
 <S>                                                  <C>
 Announcement Date:                                   05/06/89

 Acquiror:                                            Time Incorporated

 Target:                                              Warner Communications, Inc.

 o    Total Amount:                                   $14,000 million

 o    Type of Consideration:                          Cash - $7,000 million
                                                      Convertible Preferred - $6,100 million
                                                      Stock - $900 million
 Terms of Convertible Preferred:

 o    Yield:                                          8.75%

 o    Premium:                                        471%

 o    Principal Amount:                               $35 per share

 Description of Transaction:                          Time Incorporated and Warner Communications, Inc. agree to merge in a 
                                                      tax-free exchange of stock in which Warner shareholders will receive 0.465 
                                                      of a Time share for each Warner share.  Time and Warner have agreed to 
                                                      immediately exchange 12.5% of Time's shares for 9% of Warner's.  On 4/14/89, 
                                                      the SEC advises the companies that the merger cannot be accounted for as a 
                                                      pooling of interests because of the immediate share exchange.  Time and 
                                                      Warner postpone the closing of the share exchange until February 28, 1990.  
                                                      In June, Paramount Communications Inc. offers to acquire Time, threatening 
                                                      to break up the merger.

                                                      On 6/19/89, Time and Warner restructure their agreement.  The new terms call 
                                                      for Time to acquire Warner for $70 per share, half in cash and half in a 
                                                      package of securities which will consist of 8.75% exchangeable convertible 
                                                      preferred shares with a face value of $35 per share, 11% pay-in-kind 
                                                      exchangeable convertible shares with a face value of $26 per share, and a 
                                                      portion of Warner's 12 million shares in Chris-Craft Industries, Inc.'s
                                                      Warner's largest shareholder, BHC Holdings operations, valued at $9 per 
                                                      Warner share.  Time begins a tender offer for 100 million Warner shares.
</TABLE>





                                                                            27
<PAGE>   119
SALOMON BROTHERS INC

Time Incorporated/Warner Communications, Inc.
<TABLE>
 <S>                                             <C>
 Description of Transaction: (cont'd)            On 12/27/89, Shareholders file suits contending that Warner Executives will    
                                                 receive favorable treatment in the proposed securities package.  On 1/11/90,    
                                                 Time Warner Inc. completes the acquisition.  Each share of Warner communication 
                                                 now represents 0.7188774 share of Time Warner Preferred Series C depositary     
                                                 stock, 0.5421044 share of Time Warner Preferred Series D depositary stock, and  
                                                 0.15166 share of BHC communications Class A common stock.  On 12/27/89,         
                                                 Shareholders file suits contending that Warner Executives will receive         
                                                 favorable treatment in the proposed securities package.  On 1/11/90, Time Warner
                                                 Inc. completes the acquisition.  Each share of Warner communication now         
                                                 represents 0.7188774 share of Time Warner Preferred Series C depositary stock,  
                                                 0.5421044 share of Time Warner Preferred Series D depositary stock, and 0.15166 
                                                 share of BHC communications Class A common stock.                               
                                                                           
                                                                                

</TABLE>





                                                                             28
<PAGE>   120
SALOMON BROTHERS INC

Price & Volume Profile

                         TIME WARNER PREFERRED SERIES C
                     DAILY DATA - 12/11/89 THROUGH 1/11/91


                                    [GRAPH]


             TIME WARNER PREFERRED SERIES C: PRICE (LEFT AXIS)
             TIME WARNER PREFERRED SERIES C: VOLUME (RIGHT AXIS)



- --------------------
(a)  1/11/90 Consummation Date.





                                                                             29
<PAGE>   121
SALOMON BROTHERS INC

Price & Volume Profile

                                TIME WARNER INC.
                      DAILY DATA - 3/6/89 THROUGH 1/11/91


                                    [GRAPH]

             TIME WARNER INC.: PRICE (LEFT AXIS)
             TIME WARNER INC.: VOLUME (RIGHT AXIS)


- --------------------
(a)  5/06/89 announcement.
(b)  1/11/90 consummation date.





                                                                            30
<PAGE>   122
SALOMON BROTHERS INC


Baker Hughes Incorporated/Teleco Oilfield Services Inc. (Sonat Inc.)

<TABLE>
<S>                                            <C>
Announcement Date:                             01/07/92

Acquiror:                                      Baker Hughes Incorporated

Target:                                        Teleco Oilfield Services Inc. (Sonat Inc.)

    o   Total Amount:                          $400.0

    o   Type of Consideration:                 Cash - $200 million
                                               Convertible Preferred - $200 million

Terms of Convertible Preferred:

    o   Yield:                                 6%

    o   Premium:                               67%

    o   Principal Amount:                      $50.00

Description of Transaction:                    Baker Hughes Incorporated agrees to acquire Teleco Oilfield Services Inc. from  
                                               Sonat Inc. for $200 million in cash, four million shares of convertible         
                                               preferred stock and a 5% royalty payment for five years on certain technology   
                                               payments.  The convertible preferred stock has a face amount of $200 million, a 
                                               dividend rate of 6% per annum and is convertible at $32.50 per share of Baker    
                                               Hughes common stock subject to adjustment at closing.  The royalty is payable on
                                               the revenues of the "triple combo" measurement-while-drilling system recently   
                                               developed by Teleco.  Sonat agreed to sell certain oil and gas properties to    
                                               Kerr-McGee in May, 1991.  Completion dated 4/23/92                              
                                                                                
                                                                                

</TABLE>

- --------------------
Note:  Premium is calculated five trading days prior to announcement at a price
       of $19.50.





                                                                             31
<PAGE>   123
SALOMON BROTHERS INC

Price & Volume Profile

                               BAKER-HUGHES, INC.
                      DAILY DATA - 11/7/91 THROUGH 4/23/93


                                    [GRAPH]


        BAKER-HUGHES, INC.:  PRICE (LEFT AXIS)
        BAKER-HUGHES, INC.:  VOLUME (RIGHT AXIS)



- --------------------
(a)  01/07/92 announcement.
(b)  4/23/92 consummation date.





                                                                            32
<PAGE>   124
SALOMON BROTHERS INC


Cooper Industries, Inc./Cameron Iron Works, Inc.

<TABLE>
<S>                                            <C>
Announcement Date:                             08/02/89

Acquiror:                                      Cooper Industries, Inc.

Target:                                        Cameron Iron Works, Inc.

    o   Total Amount:                          $779 Million

    o   Type of Consideration:                 Preferred Stock - $683.8 million
                                               Cash - $15 million
                                               Debt Assumed - 65.1 million

Terms of Convertible Exchangeable Preferred:

    o   Yield:                                 8%

    o   Premium:                               14%

    o   Principal Amount:                      $100

Description of Transaction:                    Cooper Industries, Inc. offers to acquire Cameron Iron Works, Inc. in an       
                                               exchange of stock.  Cameron shareholders will receive one share of Cooper      
                                               convertible exchangeable preferred stock for every five shares of Cameron.  The
                                               preferred will have an annual dividend of $8 per share and will be convertible 
                                               into 2.75 shares of Cooper common.  The shares are valued at $21 - $24.50 each. 
                                               Earlier this year, Cameron announced it had hired an investment advisor to help
                                               major Cameron holders dispose of a 47.53% stake in the company.  Completion    
                                               dated 11/29/89                                                                 
</TABLE>


- --------------------
Note:  Premium is calculated five trading days prior to announcement at a price
       of $31,875





                                                                             33
<PAGE>   125
SALOMON BROTHERS INC

Price & Volume Profile

                            COOPER INDUSTRIES, INC.
                      DAILY DATA - 6/2/89 THROUGH 11/29/90


                                    [GRAPH]


             COOPER INDUSTRIES, INC.:  PRICE (LEFT AXIS)
             COOPER INDUSTRIES, INC.:  VOLUME (RIGHT AXIS)


- --------------------
(a)  08/02/89 announcement.
(b)  11/29/89 consummation date.





                                                                            34
<PAGE>   126
SALOMON BROTHERS INC

Trian Group L.P./DWG Corporation

<TABLE>
<S>                                            <C>
Announcement Date:                             10/03/92

Acquiror:                                      Trian Group L.P.

Target:                                        DWG Corporation

    o   Total Amount:                          $143.6 million

    o   Type of Consideration:                 Cash - $71.8 million
                                               Convertible Preferred - $71.8 million


Terms of Convertible Exchangeable Preferred:

    o   Yield:                                 8 1/8%

    o   Premium:                               21%

    o   Principal Amount:                      $12 per share

Description of Transaction:                    Victor Posner, and related entities controlled by him, agree to sell to Trian
                                               Group L.P., a New York investment concern, half of their 11,965,733 shares of
                                               DWG Corporation for $12 per share and agrees to exchange the remaining shares
                                               for shares of newly created non-voting, convertible preferred stock of DWG for
                                               $12 per share with an aggregate stated value of $71,794,392 and cumulative
                                               annual dividend of 8 1/8%.  The interest represents 46.3% of the voting power
                                               outstanding of DWG.  On April 26, Trian, controlled by Nelson Peltz and Peter
                                               May, completes the acquisition.  The company also announced plans to change its
                                               name to Triarc Cos.  Completion dated 05/01/93
        
</TABLE>

- ----------------------------
Note:  Premium is calculated five trading days prior to announcement at a price
       of $14.48.





                                                                            35
<PAGE>   127
SALOMON BROTHERS INC

Price & Volume Profile


                                DWG CORPORATION
                      DAILY DATA - 6/3/92 THROUGH 10/1/93


                                    [Graph]


        DWG CORPORATION:  PRICE (LEFT AXIS)
        DWG CORPORATION:  VOLUME (RIGHT AXIS)


- --------------------
(a)  08/03/92 announcement.
(b)  5/1/93 consummation date.





                                                                            36
<PAGE>   128
SALOMON BROTHERS INC

IDB Communications Group Inc./Telephone and Satellite 
Interests (TeleColumbus AG)

<TABLE>
<S>                                            <C>
Announcement Date:                             03/09/92

Acquiror:                                      IDB Communications Group Inc.

Target:                                        Telephone and Satellite Interests (TeleColumbus AG)

    o   Total Amount:                          $94.8 million

    o   Type of Consideration:                 Common Stock - 60.8 million
                                               Convertible Preferred - $34 million


Terms of Convertible Preferred:

    o   Yield:                                 4%

    o   Premium:                               43%

    o   Principal Amount:                      $1,000 per share

Description of Transaction:                    IDS Communications Group agrees to acquire a 51% stake in Satellite Transmission
                                               and Reception Specialists for 1,010,000 shares of IDB Communications common
                                               stock.  IDB also agrees to acquire the remaining 49% stake in STARS, as well as
                                               100% of World Communications for approximately 2,990,000 additional shares of
                                               common stock and the issuance of a nonredeemable convertible preferred stock
                                               with a face value of $34 million.  The stock yields a 4% annual cash dividend
                                               and can be converted into IDB common stock at $18.38 per share.  On October 2,
                                               1992, IDS Communications received FCC approval of the transaction.  On April
                                               6, 1992, the acquisition of the majority interest in STARS was completed.  
                                               Completion dated 04/06/92

 </TABLE>

- ----------------------------
Note:  Premium is calculated five trading days prior to announcement at a price
       of $12.8571





                                                                            37
<PAGE>   129
SALOMON BROTHERS INC

Price & Volume Profile

                            IDB COMMUNICATIONS GROUP
                       DAILY DATA - 1/9/92 THROUGH 4/6/93


                                    [Graph]


        IDB COMMUNICATIONS GROUP:  PRICE (LEFT AXIS)
        IDB COMMUNICATIONS GROUP:  VOLUME (RIGHT AXIS)

- --------------------
(a)  03/09/92 announcement.
(b)  04/06/92 consummation date.





                                                                           38
<PAGE>   130
SALOMON BROTHERS INC



APPENDIX C
CONVERTIBLE PREFERRED
MARKET CONDITIONS





                                                                             39 
<PAGE>   131
SALOMON BROTHERS INC



Convertible Market Overview


RECENT CONVERTIBLE MARKET CONDITIONS

   o     RECORD NEW ISSUES.  The lowest interest rate environment in recent 
         history, coupled with record equity market valuations, has resulted 
         in the highest level of new convertible issuance ever observed.  
         1993's convertible market issuance should surpass 1992's record $19 
         billion level.

   o     AGGRESSIVE TERMS.  Corporate issuers have been afforded extraordinary
         flexibility in setting coupons, conversion premiums, and call 
         features.  Almost every convertible priced this year has had a coupon
         below 6.5%, with many in the 4.5-5.5% range.  Conversion premiums 
         have routinely been set in the 24-26% range, with some even higher.

   o     STRONG INVESTOR DEMAND.  At least 85% of the convertibles priced
         during 1993 have been either increased or oversubscribed. Two recent
         issues that Salomon Brothers managed, Stone Container and Battle
         Mountain Gold, were oversubscribed four and ten times respectively.

   o     RECORD REDEMPTIONS.  Because of the record level of convertible 
         redemptions, there has been only a minor net increase in convertible 
         securities outstanding.  This trend has left convertible investors 
         with large cash reserves and eager for new investment opportunities.

   o     STRONG SECONDARY MARKET.  During the first eight months of 1993, 
         Salomon Brothers' Convertible Securities Index has generated total 
         returns of 15.8%, compared with 8.4% for the S&P 500.





                                                                           40
<PAGE>   132
7SALOMON BROTHERS INC



Convertible Market Overview


RECENT CONVERTIBLE MARKET CONDITIONS


   o     EXPANDED INVESTOR BASE.  The new convertible issue market is
         attracting new investors, including straight equity funds, income 
         funds, bond funds, and insurance companies.  Many of  these investors
         had not previously been meaningful players in the convertible market.

   o     EXPANDED ISSUER UNIVERSE.  The market has grown increasingly   
         receptive to companies that have not previously tapped the 
         convertible market, including single-B credits and issuers with 
         relatively high dividend yields.

   o     PRODUCT INNOVATION.  Unprecedented investor demand has given 
         corporations flexibility to issue advantageous new structures, 
         including DECS, Stock Settled Convertible Preferred Stock and ELKS.

   o     SHELF REGISTRATION.  Issuers, including Time Warner, Masco Tech, 
         Comcast and First Chicago, are increasingly taking advantage of 
         revised S.E.C. shelf filing requirements to minimize the S.E.C. 
         review period and enhance their timing flexibility.

   o     RULE 144A.  Nearly 25% of 1993's new issue volume has been issued 
         under Rule 144A, in order to avoid the S.E.C. review, shorten the 
         road show process, and increase timing flexibility.





                                                                            41
<PAGE>   133
SALOMON BROTHERS INC



Convertible Market Overview


CONVERTIBLE NEW ISSUE MARKET

1993's convertible market volume is on a pace to surpass the record $19 billion
raised in 1992.


                           MONTHLY CONVERTIBLE VOLUME


                                    [Graph]





                                                                            42
<PAGE>   134
SALOMON BROTHERS INC



Convertible Market Overview

CONVERTIBLE NEW ISSUE MARKET

Since 1991, convertible preferred stock has become the dominant component of
the convertible market.


                    TOTAL CONVERTIBLE ISSUANCE 1983-1993 YTD

                                    [Graph]





            PERCS
            ZEROS
            CVT PFD
            CASH CVTS


       NOTE: 1993 FIGURES THROUGH 9/7/93


                                                                             43
<PAGE>   135
SALOMON BROTHERS INC



Convertible Market Overview

AGGRESSIVE NEW ISSUE TERMS

Investors' willingness to accept securities with aggressive terms and novel
features demonstrates the vibrancy of the equity-linked market.

                       1992/1993 CONVERTIBLE TRANSACTIONS

<TABLE>
<CAPTION>
            FEATURE                                       ISSUER                                       DESCRIPTION             
  ---------------------------              ------------------------------------          --------------------------------------
  <S>                                      <C>                                           <C>     
  Low Coupons                              o  Comp. Telefonos de Chile                   o  4.5%, up 23.6%
                                           o  Carnival Cruise Lines                      o  4.5%, up 22.5%

  High Conversion Premiums                 o  Bindley-Western                            o  6.5%, up 30.0%
                                           o  TJX Companies                              o  6.0%, up 25.0%
                                           o  Storage Technology                         o  7.0%, up 25.3%

  Accelerated Execution                    o  First Chicago                              o  5.75%, up 25.1% (1-day marketing period)

  New, Innovative Structures               o  Cellular Communications                    o  Non-Putable 7-Year Zero, 144A
                                           o  Enquirer / Star Group                      o  Synthetic Zero with Warrants
                                           o  Consolidated Freightways                   o  Limited Appreciation Preference Stock
                                           o  Horace Mann                                o  Step-up Coupon Convertible Debenture
                                           o  Battle Mountain Gold                       o  Stock-Settled Redemption
                                           o  American Express                           o  DECS
                                           o  Salomon/Digital Equipment                  o  ELKS

  Receptivity to Low-Rated Credits         o  Bethlehem Steel                            o  B3 / B-
                                           o  Wheeling Pittsburgh                        o  B2 / B
                                           o  Cellular Communications                    o  Caa / CCC+
                                                of Puerto Rico
                                           o  Reading & Bates                            o  B3 / B
</TABLE>


  o  Salomon Brothers has been extremely active in underwriting
     precedent-setting convertible securities.  In fact, Salomon managed each
     of the seventeen transactions above, eight as lead manager.





                                                                            44
<PAGE>   136
SALOMON BROTHERS INCSALOMON BROTHERS INC


Convertible Market Overview

RECORD CONVERTIBLE REDEMPTIONS

The convertible market is enjoying a favorable supply/demand imbalance in 1993,
with the dollar value of new issues called nearly equaling total new issuance
volume.  As a result, there has been only a minor increase in the amount of
convertible securities outstanding, despite the record level of new issuance.

                 SELECTED CONVERTIBLE ISSUES CALLED DURING 1993

<TABLE>
<CAPTION>

 CALL DATE                  ISSUE              PROCEEDS ($MM)
 ----------      --------------------------    --------------
   <S>           <C>                               <C>
   01/04/93      Loral Corporation                   100        
   01/04/93      Berkshire Hathaway                  478        
   01/08/93      Hudson Foods                         33        
   01/14/93      Wyle Labs                            25        
   01/29/93      TJX Cos                              70        
   02/05/93      Time Warner                       2,250        
   02/10/93      Bergen Brunswig                     188        
   02/12/93      Washington Mutual                    65        
   02/12/93      Time Warner                       1,000        
   02/25/93      Service Corp.                       100        
   02/25/93      Trinity Industries                   85        
   03/04/93      Sterling Software                    93        
   03/11/93      Disney                            1,088        
   03/15/93      Giddings & Lewis                     58        
   03/15/93      Sonat                               237        
   03/15/93      Pentair                              50        
   03/16/93      Union Carbide                       345        
   03/17/93      Comcast                             100        
   04/01/93      SCI Systems                          70        
   04/05/93      McCaw Cellular                      114        
   04/05/93      McCaw Cellular                      286        
   04/07/93      Weyerhaeuser                        193        
   04/22/93      Weingarten Realty                    60        
   04/22/93      Signal (Allied-Signal)               57        
   04/29/93      Burlington Resources                 80        
   04/30/93      Plenum Publishing                    48 
   05/04/93      CBS Inc.                            400 
   03/17/93      MCI Communications                  536 
   03/25/93      DSC Communications                   72 
   03/26/93      Aluminum Co. of America             150 
   05/05/93      Noble Affiliates                    100 
   05/13/93      Sprint                              210 
   05/19/93      Petroleum & Resources                36 
   05/21/93      Rouse Co                            100 
   06/04/93      Kirby Corp.                          50 
   06/07/93      Kaufman & Broad Home                169 
   06/08/93      BRE Properties                       47 
   06/10/93      Williams Cos.                       150 
   06/25/93      Texas Instruments (PERCS)           108 
   06/28/93      Comcast Corp                        100 
   07/02/93      Primerica                           137 
   07/02/93      Anadarko Petroleum                  100 
   07/07/93      Grumman                              50 
   07/15/93      General Dynamics/Federal Express     75 
   07/15/93      Genetixs Institute                   58 
   07/16/93      Allen Group                          58 
   08/02/93      RPM Inc                              50 
   08/09/93      FMC                                 174 
   09/10/93      Texas Instruments                   108 
   09/20/93      Sun Microsystems                    123 
</TABLE>
                
 1993 NEW ISSUANCE      -       1993 REDEMPTIONS          
   $14.4 BILLION                 $13.7 BILLION            
                                                          
=             NET INCREASE IN CONVERTIBLES OUTSTANDING  
                            $0.7 BILLION                





                                                                            45
<PAGE>   137
SALOMON BROTHERS INC

Convertible Market Overview

SECONDARY MARKET PERFORMANCE

  o   Convertible securities have outperformed all other major asset classes 
      during 1993.

  o   These returns have generated unprecedented investor demand for 
      convertibles, allowing issuers significant flexibility in structuring 
      their securities.
      
<TABLE>
<CAPTION>
                            TOTAL RETURNS OF SELECTED INDEXES
                            ---------------------------------
                   INDEX                                      TOTAL RETURN YTD
                   -----                                      ----------------
     <S>                                                             <C>
     SALOMON BROTHERS' CONVERTIBLE SECURITIES INDEX                  15.8%

     Salomon Brothers' High Yield Index                              13.6

     Dow Jones Industrials                                           12.6

     NASDAQ Composite                                                 9.7

     Salomon Brothers' Bond Index                                     9.5

     S&P 500                                                          8.4
</TABLE>

- ---------------------------------
Note:  Figures as of 9/1/93.





                                                                             46

<PAGE>   138
SALOMON BROTHERS INC

Convertible Market Overview

EXPANDING CONVERTIBLE INVESTOR BASE

Equity mutual funds have become important buyers of equity-linked securities,
as a majority of the largest funds have some income orientation and invest in
convertibles to satisfy that objective.

<TABLE>
<CAPTION>
                                                          LARGEST EQUITY MUTUAL FUNDS
                                                          ---------------------------
                     FUND                         ASSETS ($B)           INVESTMENT ORIENTATION         LOCATION
                     ----                         -----------           ----------------------         --------
    <S>                                               <C>                <C>                         <C>
    Fidelity Magellan                                 $25                       Growth                  Boston

    Investment Co. of America (Capital Research)       17                  Growth & Income            Los Angeles

    Washington Mutual Inv. (Capital Research)          11                  Growth & Income            Los Angeles

    Vanguard Windsor                                   10                  Growth & Income              Boston

    Income Fund of America (Capital Research)           8                   Equity Income             Los Angeles

    Vanguard Index                                      7                       Growth               Philadelphia

    Janus Fund                                          7                Capital Appreciation           Denver

    Fidelity Puritan                                    7                   Equity Income               Boston

    Vanguard Windsor II                                 6                  Growth & Income           Philadelphia

    Fidelity Growth & Income                            6                  Growth & Income              Boston

    20th Century: Ultra Inv. (Investors Research)       6                Capital Appreciation           Chicago

    Fidelity Equity - Income                            6                   Equity Income               Boston

    Dean Witter Dividend Growth                         6                  Growth & Income             New York

    AIM Equity                                          6                       Growth                  Houston

    American Mutual (Capital Research)                  5                  Growth & Income            Los Angeles
</TABLE>

- -----------------------------------------
Source:  Lipper Analytical Services





                                                                             47
<PAGE>   139
SALOMON BROTHERS INC

Convertible Market Overview

EXPANDING CONVERTIBLE INVESTOR BASE

The substantial increase in Growth and Income funds has helped fuel the demand
for high-yielding convertible securities.


                     NET FLOWS INTO GROWTH AND INCOME FUNDS
                             (DOLLARS IN BILLIONS)

                                    [Graph]





                                                                            48
<PAGE>   140
SALOMON BROTHERS INC

Convertible Market Overview

EXPANDING CONVERTIBLE INVESTOR BASE

The buyers' universe for equity-linked securities is composed of six broad
sectors representing over $100 billion in assets.  Figures below indicate the
amount under management and the primary product focus of each sector.

                                  [Pie Chart]


                GROWTH & INCOME MUTUAL FUNDS:  $30B  
                o   Convertible Preferreds           
                o   Cash Pay Convertibles            
                o   Zero Coupon Convertibles         
                o   STEPS/ PERCS
                o   DECS

                WARRANT BUYERS:  $6B                 
                o   Warrants                         
                o   Stripped Warrants on             
                    Convertible Debt                 
                                                     
                                                     

                          HIGH YIELD BUYERS:  $8B    
                          o    "Busted" Convertibles 
                          o    "Distressed" Convertibles 
                          o     Zero Coupon Convertibles 

                
                 HEDGE FUNDS:  $28B
                 o    Low Premium Convertibles
                 o    Low Premium Convertible Preferreds
                 o    STEPS/ PERCS
                
                
                
                 EQUITY-LINKED MUTUAL FUNDS:  $10B
                 o    Cash Pay Convertibles
                 o    Convertible Preferred
                 o    Zero Coupon Convertibles
                 o    STEPS/ PERCS
                 o    DECS
                
                          INCOME ORIENTED EQUITY-LINKED BUYERS:  $20B
                          o    "Busted" Convertibles
                          o    STEPS/ PERCS
                          o    DECS

                




                                                                             49
<PAGE>   141
SALOMON BROTHERS INC

Convertible Market Overview

CONVERTIBLE MARKET FORWARD CALENDAR

<TABLE>
<CAPTION>
                                    CONVERTIBLE OFFERINGS IN REGISTRATION
                                    -------------------------------------
                               PROCEEDS
                                AMOUNT
             ISSUER              ($MM)             SECURITY           PRICE TALK           EXPECTED DATE
             ------            --------            --------           ----------           -------------
<S>                              <C>       <C>                      <C>                      <C>
American Express                 $735      DECS                     6-6.5%/up 20-22%         September

Boise Cascade                     157      DECS                     7-7.5%/up 21-25%         September

Chiles Offshore                    75      Convertible Preferred           NA                   NA

Fremont General                    80      Zero Coupon Convertible         NA                September

International Technology           60      Convertible Preferred           NA                   NA

Motorola                          300      Zero Coupon Convertible  2-2.5%/up 20-22%            NA

Omnicare                           50      Cvt Debt                        NA                   NA

Somatogen                          40      Convertible Preferred      8%/up 23-25%           September

Total Pharmaceutical               50      Convertible Debt                NA                   NA
</TABLE>


Note:  Includes deals > $20mm; excludes 144A offerings.





                                                                             50
<PAGE>   142

APPENDIX 6 (PRESENTATION OF GRAPHIC MATERIAL IN EDGAR FORMAT)

1.       The graph appearing behind Tab B ("Valuation Summary") entitled "Price
& Volume Profile of VLP--Valero Natural Gas Partners, LP--Daily Data" is
omitted.  The omitted graph presents publicly available information regarding
the price and volume of the publicly traded partnership units of Valero Natural
Gas Partners, LP ("VLP") from 12/30/88 to 10/01/93.  The graph presents
fluctuations in the market price per share of the VLP units after the
occurrence of significant events affecting the VLP units.  The graph
illustrates that the market price per VLP unit decreased from approximately $15
to below $12 after the announcement in April 1991 that VLP might cut the amount
of its distributions to unitholders in 1992 (trading volume was extraordinarily
high immediately following the announcement).  The graph illustrates that the
market price per VLP unit continued to decrease through 03/18/92 when Valero
Energy Corp. announced the proposed purchase of $83 million of South Texas
assets, with the price ultimately reaching a low of approximately $8 per unit
in July 1992 when VLP cut the amount of its distribution from $0.635 to $0.125
per unit.  The graph further illustrates that the market price per VLP unit
increased to approximately $9 1/4 at 10/01/93 (one year after VLP announced
improved earnings results in October 1992).  The graph also illustrates that
the daily trading volume for the VLP units generally averaged approximately
30,000 units during the period presented by the graph.  The graph shows that
trading volumes were generally 8 to 10 times such average immediately following
the aforementioned announcements.

2.       The graph appearing behind Tab B ("Valuation Summary") entitled
"Dividend Yield Profile of VLP--Valero Natural Gas Partners, LP--Daily Data" is
omitted.  The omitted graph presents the dividend yield percentage for the
units of partnership interests of Valero Natural Gas Partners, L.P. ("VLP")
from 12/30/88 through 10/01/93.  The graph illustrates that the dividend yield
percentage increased from approximately 16% to approximatly 21% after VLP made
an announcement in April 1991 warning that VLP may cut distribution in 1992.
The graph further illustrates that the dividend yield percentage decreased from
approximately 30% to approximately 7% after VLP in July 1992 cut its
distribution from $0.625 to $0.125 per unit.

3.       The bar graph appearing behind Tab B "Valuation Summary" having the
heading "Relative Market Size of the Natural Gas Industry" is omitted.  The
following chart describes the information presented in the omitted graph:

         The Gathering, Transmission and Processing sector is a relatively
         small part of the natural gas equity market and is dominated by large
         insider ownership.

<TABLE>
<CAPTION>
                                                      Market Capitalization
                    Sector                               ($ in millions)        
                    ------                            ---------------------
                 <S>                                         <C>
                 GTP*                                        $ 2,951
                 Distribution                                $12,399
                 E & P                                       $24,216
                 Pipelines                                   $34,852
</TABLE>

<PAGE>   143
         *Insider ownership in the GTP industry is approximately 1/3 of GTP's
total market capitalization.

4.       The bar graph appearing behind Tab B "Valuation Summary" having the
heading "Liquidity in the Natural Gas Equity Market" is omitted.  The following
chart describes the information presented in the omitted graph:

                 Due to this small size, the GTP sector is much less liquid
         compared to the pipeline and E & P sector of the natural gas industry.

<TABLE>
<CAPTION>
                                  Total Share Traded as a Percentage
                                       of Market Capitalization
                                              (O - 100%)
                          <S>                                          <C>
                          Distribution                                 25.4%
                          GTP                                          35.6%
                          Pipelines                                    51.4%
                          E & P                                        73.2%
</TABLE>

5.       The flow chart appearing behind Tab C - "Review of Transaction
Structure" having the heading "Exchange of Securities via Merger" is omitted.
The four paragraphs appearing immediately beneath the omitted flow chart
adequately describe the information presented in the flow chart.  The four
descriptive paragraphs were not omitted from the foregoing document.

6.       The chart appearing behind Tab C "Review of Transaction Structure"
having the heading "Merger/Exchange of Securities - Preliminary Timetable" is
omitted.  The following chart describes the information presented in the
omitted graph.

<TABLE>
<CAPTION>
SALOMON/MANAGEMENT/BOARD ACTIONS                                WEEK OF
- --------------------------------                                -------
    <S>                                                         <C>          <C>
    Salomon/Management/Structure Meeting                        October 4
    Rating Agency Presentations                                 October 11,  18
    VLO Board Meeting/Recommend Buy-In                          October 25
    Send Proposal Letter and  Announce Proposal                 November 29
    Salomon Fairness Opinion
</TABLE>

<TABLE>
<CAPTION>
SPECIAL COMMITTEE ACTIONS
- -------------------------
    <S>                                                         <C>
    Special Committee Formed                                    October 25, November 1
    Special Committee Reviews Recommendation                    November 1, 8, 15, 22
    Special Committee's Investment Banker                       November 29
         Fairness Opinion
    Special Committee Approves Merger and                       November 29
         Makes Recommendation to VLP Unitholders
</TABLE>
<PAGE>   144
<TABLE>
<CAPTION>
SEC/PROXY/PROSPECTUS PROCESS
- ----------------------------
    <S>                                                         <C>
    Draft Proxy/Prospectus                                      November 1, 8, 15, 22, 29
    File Proxy Statement/Prospectus at SEC                      November 29
    SEC Review of Proxy/Prospectus                              November 29, December 6, 13, 20, 27
    SEC Comments/Amendments                                     January 3, 10
    SEC Declares Effective/Mail to Unitholders                  January 17
    File 8-K with Earnings Announcement                         February 14
    Mail Convert to Unitholders                                 March 21
</TABLE>

<TABLE>
<CAPTION>
UNITHOLDERS/VOTE MERGER PROCESS
- -------------------------------
    <S>                                                         <C>
    Mail Proxy/Prospectus/Notice to Vote                        January 17
    Unitholders Review Proposal                                 January 17, 24, 31, February 7, 14, 21,
                                                                28, March 7, 14
    Unitholders Vote                                            March 14
    File Merger Certificate                                     March 14
    Closing of Merger                                           March 14
</TABLE>

7.  The flow chart appearing behind Tab C " Review of Transaction Structure"
having the heading "Cash Offer via Merger" is omitted.  The three paragraphs
appearing immediately beneath the omitted flow chart adequately describe the
information presented in the flow chart.  The three descriptive paragraphs were
not omitted from the foregoing document.

8.  The chart appearing behind Tab C "Review of Transaction Structure" having
the heading "Cash Merger - Preliminary Timetable" is omitted.  The following
chart describes the information presented in the omitted graph.

<TABLE>
<CAPTION>
SALOMON/MANAGEMENT/BOARD ACTIONS                                WEEK OF
- --------------------------------                                -------
    <S>                                                         <C>          <C>
    Salomon/Management/Structure Meeting                        October 4
    Rating Agency Presentations                                 October 11,  18
    VLO Board Meeting/Recommend Buy-In                          October 25
    Send Proposal Letter and Announce Proposal                  October 25
    Salomon Fairness Opinion                                    November 29
</TABLE>

<TABLE>
<CAPTION>
SPECIAL COMMITTEE ACTIONS
- -------------------------
    <S>                                                         <C>
    Special Committee Formed                                    October 25, November 1
    Special Committee Reviews Proposal                          November 1, 8, 15, 22
    Special Committee's Investment Banker                       November 29
         Fairness Opinion
    Special Committee Approves Merger and                       November 29
         Makes Recommendation
</TABLE>
<PAGE>   145
<TABLE>
<CAPTION>
SEC/PROXY/PROSPECTUS/MARKETING PROCESS
- --------------------------------------
    <S>                                                         <C>
    Drafting Convert Prospectus                                 October 11, 18, 25, November 1
    File Convert Prospectus with SEC/SEC Review                 November 8, 15, 22, 29
                                                                December 6
    SEC Comments/Amendments                                     December 6, 13
    SEC Declares Effective                                      January 31
    Road Show for Convert                                       February 7
    Price Convert                                               February 14
    Drafting Proxy Statement                                    November 1, 8, 15, 22
    File Proxy/SEC Review                                       November 2, December 6, 13, 20, 27
    SEC Comments/Amendments                                     December 27, January 3
</TABLE>

<TABLE>
<CAPTION>
UNITHOLDERS/VOTE/MERGER PROCESS
- -------------------------------
    <S>                                                         <C>
    Mail Proxy to Unitholders                                   January 10
    Unitholders Review Proposal                                 January 10, 17,. 24, 31, February 7
    Unitholders Vote                                            February 7
    File Merger Certificate                                     February 7
    Closing of Merger and Convert                               February 14
</TABLE>

9.  The graph appearing behind Tab D ("Pro Forma Analysis") entitled "Price &
Volume Profile of VLO--Valero Energy Corporation-- Daily Data" is omitted.  The
omitted graph presents publicly available information regarding the price and
volume of the common stock of Valero Energy Corporation ("VLO") from 12/30/88
to 10/01/93.  The graph illustrates that the market price per share of the VLO
stock was below $10 at 01/03/89, the lowest price reached during the period
presented by the graph.  The highest price of the VLO stock shown on the graph
was approximately $33 per share in the first quarter of 1992.  The graph
further illustrates that the market price per share of the VLO stock was
approximately $24.50 at 10/01/93.  The graph also illustrates that the daily
trading volume for the VLO stock generally averaged approximately 200,000
shares during the latter half of the period presented by the graph, while
trading volumes were more sporadic prior thereto.

10. The graph appearing behind Tab D ("Pro Forma Analysis") entitled "Price
Profile of VLO vs. Index of Refiners--Valero Energy Corporation--Daily Data" is
omitted.  The omitted graph illustrates how the market price per share of the
common stock of Valero Energy Corporation ("VLO") has exceeded the market price
of an index comprised of a peer group of refining companies during the period
from 01/01/91 to 10/01/93.  The graph illustrates that the per share price of
VLO common stock has experienced an approximate 60% increase as of 10/01/93
from the base period measuring point of 1/1/91, while the index of peer group
refiners has declined approximately 5% during the same period.

<PAGE>   146
11. The graph appearing behind Tab D ("Pro Forma Analysis") entitled "Valero
Energy Corporation--Price/Earnings Per Share" is omitted.  [Confidential 
Treatment Has Been Requested]

12. The graph appearing behind Tab D ("Pro Forma Analysis") entitled "Valero
Energy Corporation--Price/Cash Flow" is omitted.  [Confidential Treatment 
Has Been Requested]

13. The graph appearing behind Tab D ("Pro Forma Analysis") entitled "Pro Forma
Credit Analysis" is omitted.  [Confidential Treatment Has Been Requested]

14. The graph appearing in Appendix 3 ("Stock Price Performance Graphs")
entitled "Price Profile of VLP vs. Index" is omitted.  The omitted graph
illustrates how the market price per unit of Valero Natural Gas Partners, L.P.
("VLP") has historically been below the market price of an index comprised of a
peer group of intrastate pipeline companies during the period from 01/01/91 to
10/01/93.  The graph illustrates that the price for the index of peer group
intrastate pipeline companies has experienced an approximate 150% increase as
of 10/01/93 from the base period measuring point of 1/1/91, while the price for
VLP has declined approximately 40% during the same period.

<PAGE>   147
15. The graph appearing in Appendix 3 ("Stock Price Performance Graphs")
entitled "Price (%) Profile" is omitted.  The omitted graph illustrates how the
market price per unit of Valero Natural Gas Partners, L.P. ("VLP") has
historically been below the market price of each of the companies represented
in the index appearing in the immediately preceding graph during the period
from 01/05/90 to 10/01/93.  The graph illustrates that the price for VLP at
10/01/93 is approximately 70 percentage points below the next lowest company
included in the index of peer group companies.  The following are included in
the peer group:

    Kaneb Pipe Line Partners, L.P.
    Lakehead Pipe Line Partners, L.P.
    Santa Fe Pacific Pipeline Partners, L.P.
    Buckeye Partners, L.P.
    TEPPCO Partners, L.P.
    Enron Liquids Pipeline, L.P.

16. The graph appearing in Appendix 3 ("Stock Price Performance Graphs")
entitled "Yield Profile--Weekly Data--1/5/90 Through 10/1/93" is omitted.  The
omitted graph presents a comparison of the yield on Valero Natural Gas
Partners, L.P. units to the yield for each of the peer group companies listed
in the immediately preceding graph.  The summary statistics presented
immediately below the graph which appear in the foregoing document fairly and
accurately describe the information presented by the omitted graph.

17. The graph appearing in Appendix A ("Case Studies: Conversion and
Liquidation") entitled "Price & Volume Profile--ENSERCH Exploration Partners,
Ltd.--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the publicly traded partnership
units of ENSERCH Exploration Partners, Ltd. from 12/15/88 to 10/16/89.  The
graph illustrates that the market price per unit of ENSERCH Exploration
Partners, Ltd. dropped from $11 1/8 to $9 5/8 after the announcement of the
proposed purchase of the publicly traded partnership units, with a substantial
increase in the trading volume immediately after the announcement.  The graph
further illustrates that the market price per unit increased from below $9 to
$10 1/4 after ENSERCH sweetened the offered consideration per unit to include
an additional $1.00 of cash.

18. The graph appearing in Appendix A ("Case Studies: Conversion and
Liquidation") entitled "Price & Volume Profile--ENSERCH Corporation--Daily
Data" is omitted.  The omitted graph presents publicly available information
regarding the price and volume of the publicly traded common stock of ENSERCH
Corporation from 12/15/88 to 10/16/90.  The graph illustrates a drop in the
market price of the ENSERCH common stock after the announcement of the proposed
purchase of the publicly traded partnership units of ENSERCH Exploration
Partners, Ltd.  The graph further illustrates in increase in the price of the
common stock from approximately $19 3/8 to $22 5/8 as well as a substantial
increase in trading volume after ENSERCH Corporation sweetened the offered
consideration per partnership unit to include an additional $1.00 of cash.  The
graph also presents a increase in the market price of the ENSERCH Corporation
common stock after consummation of the transaction from approximately $22 5/8
on the date the transaction was consummated (10/16/89) to approximately $25 1/4
on 10/16/90.

<PAGE>   148
19. The graph appearing in Appendix A ("Case Studies: Conversion and
Liquidation") entitled "Price & Volume Profile--Permian Partners, L.P.--Daily
Data" is omitted.  The omitted graph presents publicly available information
regarding the price and volume of the publicly traded partnership units of
Permian Partners, L.P. ("Permian") from 10/20/89 to 11/09/90.  The graph
illustrates that the market price per unit of Permian dropped from $3 5/8 to
approximately $3 1/4 after the announcement of the proposed purchase of Permian
units, with a substantial increase in the trading volume immediately after the
announcement.  The graph further illustrates that the market price per unit
increased from $2 5/8 to $3 5/8 after the announcement that the form of the
proposed transaction was changed from a merger to a tender offer, with a
substantial increase in trading volume immediately after such announcement.

20. The graph appearing in Appendix A ("Case Studies: Conversion and
Liquidation") entitled "Price & Volume Profile--National Intergroup,
Inc.--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the publicly traded common stock
of National Intergroup, Inc. ("NII") from 10/20/89 to 11/11/91.  The graph
illustrates that the market price per share of the common stock of NII
increased from approximately $14 3/4 to a high of $18 1/4 within the month
following the announcement by NII of the proposed acquisition of Permian units,
with a substantial increase in the trading volume immediately after the
announcement.  The graph further illustrates that the market price per share
reached a low of approximately $11 1/4 immediately prior to consummation of the
transaction.  The graph illustrates that the market price per share of common
stock of NII ultimately reached a high of approximately $17 7/8 within the year
following consummation of the transaction.

21. The graph appearing in Appendix A ("Case Studies: Conversion and
Liquidation") entitled "Price & Volume Profile--Apache Petroleum Depositary
Units--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the depositary units of Apache
Petroleum Co., L.P. ("Apache Petroleum") from 06/15/88 to 10/12/88.  The graph
illustrates that the market price per unit of Apache Petroleum dropped from $3
to approximately $2.65 after the announcement of the proposed reorganization of
the partnership into a corporation.  The graph further illustrates that the
market price per unit ultimately declined to approximately $2.40 on the date
the transaction was consummated, with heavy trading volume prior thereto.

22. The graph appearing in Appendix A ("Case Studies: Conversion and
Liquidation") entitled "Price & Volume Profile--Apache Petroleum Depositary
Units--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the common stock of Apache
Corporation ("Apache Corp.") from 06/15/88 to 10/12/89.  The graph illustrates
that the market price per unit of Apache declined from approximately $8 to a
low of $6 1/4 during a period of unitholder litigation regarding the fairness
of the proposed consideration.  The graph further illustrates that the market
price per share of Apache Corp. common stock enjoyed an increase from
approximately $6 3/4 on the date the transaction was consummated (10/12/89) to
approximately $15 7/8 within the year thereafter.  The graph further
illustrates that trading volume in the common stock was heavy within the year
following consummation of the transaction.

<PAGE>   149
23. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Freeport- McMoRan Oil and Gas
Company--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the stock of Freeport-McMoRan Oil
and Gas Company ("McMoRan O&G") from 5/31/90 to 11/15/90.  The graph
illustrates that the market price per share of the stock of McMoRan O&G
increased from $7 5/8 to $10 after the date of the announcement of conversion
of the McMoRan O&G stock into shares of Freeport-McMoRan, Inc.

24. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Freeport- McMoRan Energy
Partners Ltd.--Daily Data" is omitted.  The omitted graph presents publicly
available information regarding the price and volume of the units of
partnership interest of McMoRan Energy Partners Ltd. ("McMoRan Partners") from
09/01/89 to 04/02/90.  The graph illustrates that the market price per unit of
McMoRan Partners increased only slightly from $9 1/8 to approximately $9 1/2
after the announcement that McMoRan Partners would be reorganized into a
corporation, although trading volume increased steadily after the announcement.

25. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile-- Freeport- McMoRan Inc.--Daily
Data" is omitted.  The omitted graph presents publicly available information
regarding the price and volume of the common stock of Freeport-McMoRan Inc.
("F-Mc Inc.") from 09/01/89 to 11/15/91, the period encompassing the
restructuring of the organization as follows: (i) conversion of Freeport
McMoRan Energy Partners into Freeport-McMoRan Oil & Gas Co. ("Step No.1"), and
(ii) conversion of Freeport-McMoRan Oil & Gas Company into shares of F-Mc Inc.
("Step No.2").  The graph illustrates that the market price per share of F-Mc
Inc. increased steadily from approximately $15 on the date of the announcement
of Step No.1 to $17 on the date of consummation of Step No.1, with sporadic but
heavier than usual trading volume during such period.  The graph further
illustrates that the market price per share of F-Mc Inc. decreased from
approximately $18 on the date of announcement of Step No.2 to approximately $16
3/4 on the date of consummation of Step No.2.  The graph further illustrates
that the market price per share of F-Mc Inc. stock experienced a steady
increase following consummation of Step No.2 to approximately $21 1/2 as of
11/15/91, with increased trading volume during the same period.

26. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Union Exploration Partners
Ltd.--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the units of partnership interest
of Union Exploration Partners Ltd. ("UXP") from 04/11/90 to 08/01/90.  The
graph illustrates that the market price per unit of UXP decreased from $18 1/8
to $16 following the announcement that UXP would be converted into a
corporation.  Trading volume was unusually high in the 10 days immediately
following the announcement.

<PAGE>   150
27. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Unocal Exploration
Corporation--Daily Data" is omitted.  The omitted graph presents publicly
available information regarding the price and volume of the common stock of
Unocal Exploration Corporation ("Unocal") from 08/02/90 to 08/02/91.  The graph
illustrates that the market price per unit of Unocal experienced a decline from
$16 on the date of consummation of the conversion of UXP into a corporation to
approximately $10 3/4 one year later, with relatively stable trading volume
during such period.

28. The graph appearing in Appendix A ("Case Studies:
Conversion and Liquidation") entitled "Price & Volume Profile--Santa Fe Energy
Partners L.P.--Daily Data" is omitted.  The omitted graph presents publicly
available information regarding the price and volume of the units of Santa Fe
Energy Partners L.P. ("Santa Fe Partners") from 07/09/93 to 09/27/93.  The
graph illustrates that the market price per unit of Santa Fe Partners increased
from $3 3/4 on the date of the announcement that the Santa Fe Partners units
would be redeemed, to $4.9, the stated redemption price, with extraordinarily
high trading volume immediately following the announcement.

29. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Santa Fe Energy Resources
Inc.--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the common stock of Santa Fe
Energy Resources Inc. ("Santa Fe Inc.") from 07/09/93 to 10/01/93.  The graph
illustrates that the market price per share of Santa Fe Inc. increased from
$9.90 to $10.50 during the 7 days following the date of the announcement of the
redemption of units of Santa Fe Partners.  The graph further illustrates that
the price per share of Santa Fe Inc. decreased to $10.00 on the date of
consummation of the transaction.  Trading volume was heavy during the 17 day
period from the date of the announcement to the date of consummation of the
transaction.  The graph illustrates that the price per share of Santa Fe Inc.
increased to $10.40 within the week following consummation of the transaction.

30. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Permian Basin Royalty
Trust--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the units of Permian Basin
Royalty Trust ("Permian Trust") from 06/11/93 to 09/24/93.  The graph
illustrates that the price per unit of Permian Trust increased from $3.875 to
$4.85 after the announcement of the intent of Southland Royalty Company
("Southland") intent to purchase the Permian Trust units at $4.85 per unit,
with extraordinarily high trading volume following the announcement.

31. The graph appearing in Appendix A ("Case Studies:  Conversion and
Liquidation") entitled "Price & Volume Profile--Burlington Resources
Inc.--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the common stock of Burlington
Resources Inc. ("Burlington"), the parent company of Southland, from 06/11/93
to 10/01/93.  The graph illustrates that the market price per share of
Burlington increased from approximately $51 to $53.75 within the 13 days
following the announcement of the purchase of Permian Trust units by Southland.
The graph further illustrates that the price per share of Burlington fell to
approximately $48.50 on the date of consummation of the transaction, but
experienced an increase to approximately $52.00 within the following week.  The
graph illustrates that trading volume was relatively stable throughout these
periods.

<PAGE>   151
32. The graph appearing in Appendix B ("Convertible Preferred Stock as
Consideration") entitled "Price & Volume Profile--Time Warner Preferred Series
C--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the preferred stock Series C of
Time Warner, Inc. ("Time Warner") from 12/11/89 to 01/11/91.  The graph
illustrates that within the year following consummation of the merger, the
market price per share of Time Warner Series C preferred stock suffered a
decline from $44 on 1/11/90 to $36 on 1/11/91.  The graph further illustrates
that trading volume was volatile in the months immediately following
consummation of the transaction.  Trading volume became more steady averaging
approximately 200,000 shares per day in the months immediately preceding the
one year anniversary of consummation of the transaction.

33. The graph appearing in Appendix B ("Convertible Preferred Stock as
Consideration") entitled "Price & Volume Profile--Time Warner, Inc.--Daily
Data" is omitted.  The omitted graph presents publicly available information
regarding the price and volume of the common stock of Time Warner, Inc. ("Time
Warner") from 03/06/89 to 01/11/91.  The graph illustrates that the market
price per share of the Time Warner common stock experienced an increase from
approximately $29 to $45 within the 45 days following the announcement of the
transaction.  Thereafter, the graph illustrates that the market price per share
of Time Warner common stock followed a steady decline through consummation of
the transaction and the year following reaching a price of approximately $22
per share on 1/11/91.  The graph illustrates that trading volume was stable
within the year following consummation of the transaction.

34. The graph appearing in Appendix B ("Convertible Preferred Stock as
Consideration") entitled "Price & Volume Profile--Baker- Hughes, Inc.--Daily
Data" is omitted.  The omitted graph presents publicly available information
regarding the price and volume of the common stock of Baker-Hughes, Inc.
("Baker-Hughes") from 11/07/91 to 04/23/93.  The graph illustrates that the
market price per share of the Baker-Hughes common stock experienced an decline
from approximately $21 on the date of the announcement of the transaction to
approximately $16 1/2 within the 3 months thereafter.  The graph illustrates
that the market price per share of the Baker-Hughes stock enjoyed an increase
from $21 on the date of consummation of the transaction (4/23/92) to $26 on
4/23/93.

35. The graph appearing in Appendix B ("Convertible Preferred Stock as
Consideration") entitled "Price & Volume Profile--Cooper Industries,
Inc.--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the common stock of Cooper
Industries, Inc. ("Cooper") from 06/02/89 to 11/29/90.  The graph illustrates
that the market price per share of the Cooper stock experienced an increase
from approximately $35 on the date of the announcement of the transaction to
approximately $37 within the week thereafter.  The graph illustrates that the
market price per share of the Cooper stock increased from approximately $40 on
the date of consummation of the transaction (11/29/89) to approximately $46
within 8 months thereafter (accompanied by an increased trading volume).  The
graph further illustrates that the market price of the Cooper stock had
stabilized to approximately $40 on the one-year anniversary of the consummation
of the transaction (with trading volume remaining relatively stable).

<PAGE>   152
36. The graph appearing in Appendix B ("Convertible Preferred Stock as
Consideration") entitled "Price & Volume Profile--DWG Corporation--Daily Data"
is omitted.  The omitted graph presents publicly available information
regarding the price and volume of the common stock of DWG Corporation ("DWG")
from 06/03/92 to 10/01/93.  The graph illustrates that the market price per
share of the DWG stock steadily increased from approximately $9 on the date of
the announcement of the transaction to approximately $19 on the date of
consummation of the transaction (a period of nine months), with sporadic
trading volumes during such period.  The graph illustrates that the market
price per share of the DWG stock increased to approximately $31 on 10/01/93
(five months after consummation of the transaction).

37. The graph appearing in Appendix B ("Convertible Preferred Stock as
Consideration") entitled "Price & Volume Profile--IDB Communications
Group--Daily Data" is omitted.  The omitted graph presents publicly available
information regarding the price and volume of the common stock of IDB
Communications Group, Inc. ("IDB") from 01/09/92 to 04/06/93.  The graph
illustrates that the market price per share of the IDB stock increased from
approximately $16.50 on the date of the announcement of the transaction to
approximately $17.50 on the date of consummation of the transaction (a period
of four weeks), with high trading volume immediately following the announcment
of the transaction.  The graph illustrates that the market price per share of
the DWG stock increased to approximately $28 on 04/06/93 (one year after
consummation of the transaction), with relatively stable trading volume during
such period.

38. The graph appearing in Appendix C ("Convertible Preferred Market
Conditions") entitled "Convertible Market Overview--Monthly Convertible Volume"
is omitted.  The omitted graph presents the monthly dollar amounts from January
1992 to September 1993 of new issues of convertible securities.   The graph
illustrates that the 1993 convertible market volume is outpacing the record
1992 volume.


39. The graph appearing in Appendix C ("Convertible Preferred Market
Conditions") entitled "Convertible Market Overview--Total Convertible Issuance
1983-1993 YTD" is omitted.  The omitted graph presents the total dollar amounts
of convertible issues for each year from 1983 to 1993 (YTD).   The following
chart presents the information shown in the omitted graph.
<PAGE>   153
<TABLE>
<CAPTION>
                                                           Convertible Issues
    Year                                                  (dollars in millions)
    ----                                                  ---------------------
    <S> <C>                                                     <C>
    1983                                                        $9,365
    1984                                                         5,007
    1985                                                         9,816
    1986                                                        14,805
    1987                                                        13,346
    1988                                                         3,810
    1989                                                         7,066
    1990                                                         7,956
    1991                                                        20,485
    1992                                                        18,346
    1993                                                        14,968*

         *                                                      as of 09/07/93
</TABLE>




40. The graph appearing in Appendix C ("Convertible Preferred Market
Conditions") entitled "Convertible Market Overview--Net Flows Into Growth and
Income Funds" is omitted.  The omitted graph illustrates the substantial
increase in Growth and Income funds which has fueled the demand for
high-yielding convertible securities.  The following chart presents the
information shown in the omitted graph.

<TABLE>
<CAPTION>
                                                       Net Flows into Growth
                                                          and Income funds
    Year                                               (dollars in billions)
    ----                                               ---------------------
    <S>                                                         <C>
    1990                                                        $4.3
    1991                                                        11.0
    1992                                                        24.0
    1993E                                                       36.9
</TABLE>

41. The pie chart appearing in Appendix C ("Convertible Preferred Market
Conditions") entitled "Convertible Market Overview--Net Flows Into Growth and
Income Funds" is omitted.  The chart illustrates the buyers' universe of
equity-linked securities representing over $100 billion in assets.  The
following chart presents the information shown in the omitted graph.

<TABLE>
<CAPTION>
         Growth & Income Mutual Funds:  $30B
         -----------------------------------
<S>                                                                <C>
                                                                -Convertible Preferreds
                                                                -Cash Pay Convertibles
                                                                -Zero Coupon Convertibles
                                                                -STEPS/PERCS
                                                                -DECS
</TABLE>
<PAGE>   154
<TABLE>

<CAPTION>
         Hedge Funds:  $28B
         ------------------
<S>                                                             <C>
                                                                -Low Premium Convertibles
                                                                -Low Premium Convertible Preferreds
                                                                -STEPS/PERCS
</TABLE>

<TABLE>
<CAPTION>
         Warrant Buyers:  $6B
         --------------------
<S>                                                             <C>
                                                                -Warrants
                                                                -Stripped Warrants on Convertible Debt
</TABLE>

<TABLE>
<CAPTION>
         Equity-Linked Mutual Funds:  $10B
         ---------------------------------
 <S>                                                            <C>
                                                                -Cash Pay Convertibles
                                                                -Convertible Preferred
                                                                -Zero Coupon Convertibles
                                                                -STEPS/PERCS
                                                                -DECS
</TABLE>

<TABLE>
<CAPTION>
         High Yield Buyers:  $8B
         -----------------------
 <S>                                                            <C>
                                                                -"Busted" Convertibles
                                                                -"Distressed" Convertibles
                                                                -Zero Coupon Convertibles
</TABLE>



<TABLE>
<CAPTION>
         Income Oriented Equity-Linked Buyers:  $20B
         -------------------------------------------
 <S>                                                            <C>
                                                                -"Busted" Convertibles
                                                                -STEPS/PERCS
                                                                -DECS
</TABLE>







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