WESTERN GAS RESOURCES INC
EXHIBIT 10.28
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<TYPE>EX-10.28
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<DESCRIPTION>EXHIBIT 10.28
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<P ALIGN="RIGHT"><FONT SIZE=2><A
NAME="kq1708_exhibit_10.28"> </A>
<A NAME="toc_kq1708_1"> </A>
<BR></FONT><FONT SIZE=2><B>Exhibit 10.28    <BR>  </B></FONT></P>

<P ALIGN="RIGHT"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[EXECUTION] </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>NINTH AMENDMENT TO LOAN AGREEMENT  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;THIS NINTH AMENDMENT TO LOAN AGREEMENT (herein called this "Amendment") is made as of the 25<SUP>th</SUP> day of April, 2002, by and among Western Gas
Resources,&nbsp;Inc. ("Borrower"), and Bank of America, N.A. ("Agent"), and the Lenders under the Loan Agreement referred to below. </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>W I T N E S S E T H:  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;WHEREAS, Borrower, Agent, and Lenders have entered into that certain Loan Agreement dated as of April&nbsp;29, 1999 (as amended, restated, or supplemented to
the date hereof, the "Original Agreement"), for the purposes and consideration therein expressed, pursuant to which Lenders made and became obligated to make loans to Borrower as therein provided; and </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;WHEREAS,
Borrower, Agent, and Lenders desire to amend the Original Agreement for the purposes described herein; </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NOW,
THEREFORE, in consideration of the premises and the mutual covenants and agreements contained herein and in the Original Agreement, in consideration of the loans which may hereafter
be made by Lenders to Borrower, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto do hereby agree as follows: </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>ARTICLE I.<BR>
Definitions and References  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect; 1.1. </FONT><FONT SIZE=2><I>Defined Terms. </I></FONT><FONT SIZE=2>Unless the context otherwise requires or unless otherwise expressly defined
herein, the terms defined in the Original Agreement shall have the same meanings whenever used in this Amendment. As used herein, the following terms shall have the following meanings: </FONT></P>


<P><FONT SIZE=2><I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"Amendment"</I></FONT><FONT SIZE=2> means this Ninth Amendment to Loan Agreement. </FONT></P>

<P><FONT SIZE=2><I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"Loan Agreement"</I></FONT><FONT SIZE=2> means the Original Agreement as amended by this Amendment. </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>ARTICLE II.<BR>
Amendment  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect; 2.1. The definition of "Tranche A Maturity Date" in Section&nbsp;1.1 of the Loan Agreement is hereby amended in its entirety to read as follows: </FONT></P>


<P><FONT SIZE=2><I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"Tranche A Maturity Date'</I></FONT><FONT SIZE=2> means April&nbsp;24, 2003." </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>ARTICLE III.<BR>
Conditions of Effectiveness  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect; 3.1. </FONT><FONT SIZE=2><I>Effective Date. </I></FONT><FONT SIZE=2>This Amendment shall become effective as of the date first above written when,
and only when, (i)&nbsp;Agent shall have received for the pro rata distribution to each Lender in accordance with each Lender's Percentage Share of the Tranche A Commitment, an amendment fee in the
amount of $100,000.00 in immediately available funds, and (ii)&nbsp;Agent shall have also received all of the following: </FONT></P>

<UL>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;This
Amendment, duly authorized, executed and delivered by Borrower, Agent, and each Lender, and in form and substance satisfactory to Agent. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;A
certificate of a duly authorized officer of Borrower dated the date of this Amendment certifying: (i)&nbsp;that all of the representations and warranties set forth
in Article&nbsp;IV hereof are true
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and correct at and as of the time of such effectiveness; and (ii)&nbsp;as to such other corporate matters as Agent shall deem necessary. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;Payment
of fees and disbursements of Thompson&nbsp;&amp; Knight L.L.P. relating to this Amendment and the Loan Agreement as provided in the Loan Agreement. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;Agent
shall have additionally received such other documents as Agent may reasonably request. </FONT></P>

</UL>
<P ALIGN="CENTER"><FONT SIZE=2><B>ARTICLE IV.<BR>
Representations and Warranties  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect; 4.1. </FONT><FONT SIZE=2><I>Representations and Warranties of Borrower. </I></FONT><FONT SIZE=2>In order to induce each Lender to enter into this
Amendment, Borrower represents and warrants on the date hereof and as of the Effective Date to each Lender that: </FONT></P>

<UL>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;The
representations and warranties contained in Article&nbsp;V of the Original Agreement are true and correct at and as of the time of the effectiveness hereof (except
as such representations and warranties have been modified by the transactions contemplated herein). </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;Borrower
is duly authorized to execute and deliver this Amendment and Borrower is and will continue to be duly authorized to borrow monies and to perform its obligations
under the Loan Agreement. Borrower has duly taken all corporate action necessary to authorize the execution and delivery of this Amendment. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;The
execution and delivery by Borrower of this Amendment, the performance of its obligations hereunder and the consummation of the transactions contemplated hereby do
not and will not conflict with any provision of law, statute, rule or regulation or of the certificate of incorporation and bylaws of Borrower or of any material agreement, judgment, license, order or
permit applicable to or binding
upon Borrower or result in the creation of any lien, charge or encumbrance upon any assets or properties of Borrower. Except for those which have been obtained, no consent, approval, authorization or
order of any court or governmental authority or third party is required in connection with the execution and delivery by Borrower of this Amendment. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;When
duly executed and delivered, this Amendment, the Loan Agreement, and each other Loan Document, as affected hereby, will be a legal and binding obligation of each
Related Person that is a party hereto and thereto enforceable against such Related Person in accordance with its terms, except as limited by bankruptcy, insolvency or similar laws of general
application relating to the enforcement of creditors' rights and by equitable principles of general application. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e)&nbsp;&nbsp;The
audited Consolidated financial statements of Borrower dated as of December&nbsp;31, 2001, and the unaudited Consolidated financial statements of Borrower dated as
of September&nbsp;30, 2001, fairly present the Consolidated financial position at such date of Borrower and the Consolidated statement of operations and the changes in Consolidated financial
position for the periods ending on such date for Borrower. Copies of such financial statements have heretofore been delivered to Agent. Since December&nbsp;31, 2000, no material adverse change has
occurred in the financial condition or business or in the Consolidated financial condition or business of Borrower. </FONT></P>

</UL>
<P ALIGN="CENTER"><FONT SIZE=2><B>ARTICLE V.<BR>
Miscellaneous  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect; 5.1. </FONT><FONT SIZE=2><I>Ratification of Agreements. </I></FONT><FONT SIZE=2>The Original Agreement as hereby amended is hereby ratified and
confirmed in all respects. Any reference to the Loan Agreement in any Loan Document shall be
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deemed to be a reference to the Original Agreement as hereby amended. The Loan Documents, as they may be amended or affected by this Amendment, are hereby ratified and confirmed in all respects. The
execution, delivery and effectiveness of this Amendment shall not, except as expressly provided herein, operate as a waiver of any right, power or remedy of Lenders under the Loan Agreement, the
Notes, or any other Loan Document nor constitute a waiver of any provision of the Loan Agreement, the Notes, or any other Loan Document. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect;
5.2. </FONT><FONT SIZE=2><I>Survival of Agreements. </I></FONT><FONT SIZE=2>All representations, warranties, covenants and agreements of Borrower herein shall survive the
execution and delivery of this Amendment and the performance hereof, including without limitation the making or granting of the Loans, and shall further survive until all of the Obligations are paid
in full. All statements and agreements contained in any certificate or instrument delivered by Borrower hereunder or under the Loan Agreement to any Lender shall be deemed to constitute
representations and warranties by, and/or agreements and covenants of, Borrower under this Amendment and under the Loan Agreement. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect;
5.3. </FONT><FONT SIZE=2><I>Loan Documents. </I></FONT><FONT SIZE=2>This Amendment is a Loan Document, and all provisions in the Loan Agreement pertaining to Loan
Documents apply hereto. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect;
5.4. </FONT><FONT SIZE=2><I>Governing Law. </I></FONT><FONT SIZE=2>This Amendment shall be governed by and construed in accordance the laws of the State of Texas and any
applicable laws of the United States of America in all respects, including construction, validity and performance. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&sect;
5.5. </FONT><FONT SIZE=2><I>Counterparts. </I></FONT><FONT SIZE=2>This Amendment may be separately executed in counterparts and by the different parties hereto in separate
counterparts, each of which when so executed shall be deemed to constitute one and the same Amendment. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT
SIZE=2><B>THIS AMENDMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY&nbsp;NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS OF THE PARTIES.  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>[THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK.] </FONT></P>

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<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IN
WITNESS WHEREOF, this Amendment is executed as of the date first above written. </FONT></P>

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WESTERN GAS RESOURCES,&nbsp;INC.</FONT></TD>
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BANK OF AMERICA, N.A., as Agent and Lender</FONT></TD>
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ABN AMRO BANK N.V., a Lender</FONT></TD>
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BANK ONE, NA (MAIN OFFICE&#151;CHICAGO), a Lender</FONT></TD>
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CREDIT LYONNAIS NEW YORK BRANCH, a Lender</FONT></TD>
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FLEET NATIONAL BANK, a Lender</FONT></TD>
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SOCI&Eacute;T&Eacute; G&Eacute;N&Eacute;RALE SOUTHWEST AGENCY, a Lender</FONT></TD>
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UNION BANK OF CALIFORNIA, N.A., a Lender</FONT></TD>
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&nbsp;</FONT></TD>
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U.S. BANK NATIONAL ASSOCIATION, a Lender</FONT></TD>
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<P ALIGN="CENTER"><FONT SIZE=2><B>CONSENT AND AGREEMENT  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each of the undersigned hereby (i)&nbsp;consents to the provisions of this Amendment and the transactions contemplated herein, and (ii)&nbsp;ratifies and
confirms its respective Guaranty dated as of April 29, 1999 made by it in favor of Agent for the benefit of each Lender, and agrees that its obligations and covenants thereunder are unimpaired hereby
and shall remain in full force and effect. </FONT></P>

<P><FONT SIZE=2>Date:
April&nbsp;25, 2002 </FONT></P>

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MIGC,&nbsp;INC.<BR>
WESTERN GAS RESOURCES TEXAS,&nbsp;INC.<BR>
MOUNTAIN GAS RESOURCES,&nbsp;INC.<BR>
LANCE OIL&nbsp;&amp; GAS COMPANY,&nbsp;INC.<BR>
WESTERN GAS WYOMING, L.L.C.</FONT></TD>
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<P ALIGN="CENTER"><FONT SIZE=2><B>CONSENT AND AGREEMENT  </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The undersigned hereby (i)&nbsp;consents to the provisions of this Amendment and the transactions contemplated herein, and (ii)&nbsp;ratifies and confirms its
Guaranty dated as of October&nbsp;14, 1999 made by it in favor of Agent for the benefit of each Lender, and agrees that its obligations and covenants thereunder are unimpaired hereby and shall
remain in full force and effect. </FONT></P>

<P><FONT SIZE=2>Date:
April&nbsp;25, 2002 </FONT></P>

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MGTC,&nbsp;INC.</FONT></TD>
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