TYLER RESOURCES INC.
TSX VENTURE : TYS

TYLER RESOURCES INC.

September 26, 2007 08:30 ET

Tyler Adopts Shareholder Rights Plan

CALGARY, ALBERTA--(Marketwire - Sept. 26, 2007) - Jean Pierre Jutras, President and Chief Executive Officer of Tyler Resources Inc. (the "Corporation") (TSX VENTURE:TYS) is pleased to announce the adoption by the Board of Directors of the Corporation of a Shareholder Rights Plan to protect the Corporation's shareholders from unfair, abusive or coercive take-over strategies, including the acquisition of control of the Corporation through a take-over bid that may not treat all shareholders equally or fairly. The Corporation is not aware of any specific take-over bid for the Corporation that has been made or is contemplated. The Board of Directors approved the adoption of the Plan on September 6, 2007, subject to receipt of regulatory approval which was received on September 25, 2007.

To implement the Plan, the Board of Directors of the Corporation authorized the issue of one Right in respect of each common share of the Corporation outstanding to holders of record on September 25, 2007, as well as one Right in respect of each common share issued after the record date. Initially, the Rights will attach to and trade with the common shares and be represented by certificates representing common shares.

The Plan is similar to shareholder rights plans adopted by a number of other Canadian companies. The Plan is not intended to block take-over bids. The Plan includes "Permitted Bid" provisions which do not invoke the dilutive effects of the Plan if a take-over bid is made by way of a take-over bid circular to all shareholders that remains open for a minimum of 60 days and is accepted by not less than 50 percent of the common shares held by independent shareholders. The Plan will be invoked by an acquisition, other than pursuant to a Permitted Bid, of 20% or more of the outstanding common shares of the Corporation or the commencement of a take-over bid that is not a Permitted Bid, in which case the Rights separate from the common shares and will entitle holders (other than the acquiring person or group persons) to acquire shares of the Corporation at a 50% discount to the prevailing market price of the shares.

Although the Rights Plan is effective immediately, the Corporation intends to submit the Plan to the shareholders of the Corporation for confirmation at the Corporation's next annual general meeting of shareholders expected to be held in the first quarter of 2008. If confirmed by the shareholders at this meeting, the Plan will be effective until the annual general meeting of shareholders to be held in 2010 and, if reconfirmed by shareholders at that meeting, will continue in effect until the annual general meeting of shareholders to be held in 2012.

About Tyler

Tyler Resources is a well funded Canadian junior exploration corporation focused on base and precious metals exploration in Mexico. Tyler's primary project is the Bahuerachi property, which hosts Mexico's fourth largest mineralized porphyry system. The Corporation is now in the advanced stage of an increased 35,000 meter combined diamond and reverse circulation drilling program extended into 2007, making it one of the most active Canadian junior exploration companies operating in Mexico.

Jean Pierre Jutras, President/CEO/Director

Cautionary language: Except for the historical and present factual information contained herein, the matters set forth in this news release, including words such as "expects", "projects", "plans", "anticipates" and similar expressions, are forward-looking information that represents management of Tyler's internal projections, expectations or beliefs concerning, among other things, future operating results and various components thereof or the economic performance of Tyler. The projections, estimates and beliefs contained in such forward-looking statements necessarily involve known and unknown risks and uncertainties, which may cause Tyler's actual performance and financial results in future periods to differ materially from any projections of future performance or results expressed or implied by such forward-looking statements. These risks and uncertainties include, among other things, those described in Tyler's filings with the Canadian securities authorities. Accordingly, holders of Tyler shares and potential investors are cautioned that events or circumstances could cause results to differ materially from those predicted. Tyler disclaims any responsibility to update these forward-looking statements.

The TSX Venture Exchange has neither approved nor disapproved of the contents of this press release.

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