EXHIBIT 4
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934,
as amended, the undersigned hereby agree to the joint filing on behalf of
each of them of a statement on Schedule 13D (including amendments thereto)
with respect to the common stock, $.01 par value, of Cap Rock Energy
Corporation, and that this Agreement be included as an Exhibit to such joint
filing. This Agreement may be executed in any number of counterparts all of
which taken together shall constitute one and the same instrument.
IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this 1st
day of October, 2002.
CAP ROCK ENERGY CORPORATION SHAREHOLDERS' TRUST
By: /s/ XXXXXX X. XXXXXXXX
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Name: Xxxxxx X. Xxxxxxxx
Title: Trustee
By: /s/ XXXXXX X. XXXXXX
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Name: Xxxxxx X. Xxxxxx
Title: Trustee
Xxxxxx X. Xxxxxxxx, Individually
/s/ XXXXXX X. XXXXXXXX
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Xxxxxx X. Xxxxxxxx
Xxxxxx X. Xxxxxx, Individually
/s/ XXXXXX X. XXXXXX
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Xxxxxx X. Xxxxxx