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, $5.00 par value, of Western Resources, Inc., 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 12th
day of March, 2001.
WESTAR INDUSTRIES, INC.
By: /s/ Xxxx X. Xxxxxxxxx
Name: Xxxx X. Xxxxxxxxx
Title: Secretary and Treasurer
WESTERN RESOURCES, INC.
By: /s/ Xxxxx X. Xxxxx
Name: Xxxxx X. Xxxxx
Title: Corporate Secretary
