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IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed as of the day and year first above written.
ZAPATA CORPORATION
By: /s/ Joseph L. von Rosenberg, III
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Joseph L. von Rosenberg, III
Vice President, General Counsel and
Corporate Secretary
ENERGY INDUSTRIES, INC.
By: /s/ Joseph L. von Rosenberg, III
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Joseph L. von Rosenberg, III
Vice President, General Counsel and
Corporate Secretary
ZAPATA ENERGY INDUSTRIES, L.P.
By ZAPATA RENTALS, INC., its general partner
By: /s/ Joseph L. von Rosenberg, III
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Joseph L. von Rosenberg, III
Vice President, General Counsel and
Corporate Secretary
ENTERRA CORPORATION
By: /s/ Steven W. Krablin
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Steven W. Krablin
Vice President
ENTERRA COMPRESSION COMPANY
By: /s/ Steven W. Krablin
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Steven W. Krablin
Vice President
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