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EXHIBIT 10.12

AMENDED SCHEDULE TO EXHIBIT 10.11

        The persons listed on the table below have, as of the date indicated,
each entered into an agreement with the Company that is substantially identical
to the Form of Indemnification Agreement previously filed and referenced in
Exhibit 10.11, except (i) with respect to the position held, the gender and the
name and address of the indemnitee and (ii) Section 7.5 thereof is only included
in agreements entered into with directors.

INDEMNITEE

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  POSITION

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  EFFECTIVE DATE

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Joe R. Davis   Chief Executive Officer and Director   May 1, 1994 Larry J.
Alexander   Director   May 30, 1995 Brady F. Carruth   Director   May 1, 1994
Gary L. Forbes   Director   May 1, 1994 James H. Limmer   Director   May 1, 1994
Hugh N. West   Director   May 1, 1994

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EXHIBIT 10.12

AMENDED SCHEDULE TO EXHIBIT 10.11