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<title>S-8 1998 Dir Plan</title>

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  <p style="margin:10pt 0in 2pt;"><font face="Arial, Helvetica, sans-serif"><b><font size="2">As
    filed with the Securities and Exchange Commission on March 30, 2004.</font></b></font></p>
  <p align="right" style="margin:10pt 0in 2pt;"><b><font size="2" face="Arial, Helvetica, sans-serif">Registration
    No. 333-</font></b></p>
  <hr noshade>
  <p style="margin:10pt 0in 2pt;"><font face="Arial, Helvetica, sans-serif" size="3"><b>SECURITIES
    AND EXCHANGE COMMISSION</b></font></p>
  <p style="margin:0in 0in 10pt;"><font size="3" face="Arial, Helvetica, sans-serif">WASHINGTON,
    D.C. 20549</font></p>
  <hr noshade>
  <p style="margin:10pt 0in 10pt;"><font face="Arial, Helvetica, sans-serif"><b><font size="5">FORM
    S-8</font></b></font></p>
  <p style="margin:0in 0in 1pt;"><font face="Arial, Helvetica, sans-serif"><font size="2">REGISTRATION
    STATEMENT</font></font></p>
  <p style="margin:0in 0in 1pt;"><font size="2" face="Arial, Helvetica, sans-serif">UNDER
    THE SECURITIES ACT OF 1933</font></p>
  <p style="margin:0in 0in 10pt;">&nbsp;</p>
  <p style="margin:0in 0in .0001pt;" align="center"><font face="Arial, Helvetica, sans-serif"><b><font size="5">TETRA
    Technologies, Inc.</font></b></font></p>
  <p style="margin:0in 0in .0001pt;" align="center"><font face="Arial, Helvetica, sans-serif" size="2">(Exact
    name of registrant as specified in its charter)</font></p>
  <p style="margin:0in 0in .0001pt;" align="center">&nbsp;</p>
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr valign="bottom">
      <td width="31%"> <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Delaware</font></strong></div></td>
      <td width="4%"> <div align="center"></div></td>
      <td width="31%"> <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">74-2148293</font></strong></div></td>
    </tr>
    <tr valign="top">
      <td width="31%"> <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2">(State
          or other jurisdiction of incorporation or organization)</font></font></div></td>
      <td width="4%"> <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"></font></font></div></td>
      <td width="31%"> <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2">(I.R.S.
          Employer Identification No.)</font></font></div></td>
    </tr>
  </table>
  <p style="margin:0in 0in .0001pt;" align="center">&nbsp;</p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">25025
    Interstate 45 North, Suite 600</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">The
    Woodlands, Texas 77380</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">(Address,
    including zip code, of Principal Executive Offices)</font></p>
  <p style="margin:0in 0in .0001pt;" align="center">&nbsp;</p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">TETRA
    Technologies, Inc. 1998 Director Stock Option Plan,</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">as
    amended and restated</font></strong></p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">(Full
    title of the plan)</font></p>
  <p style="margin:0in 0in .0001pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>Bass
    C. Wallace, Jr.</strong></font></p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">General
    Counsel</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">25025
    Interstate 45 North, Suite 600</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">The
    Woodlands, Texas 77380</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">(713)
    367-1983</font></strong></p>
  <p style="margin:0in 0in .0001pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">(Name,
    address, including zip code, and telephone number,</font></p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">including
    area code, of agent for service)</font></p>
  <hr align="center" width="40%" noshade>
  <p style="margin:0in 0in 2pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>CALCULATION
    OF REGISTRATION FEE</strong></font></p>
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr valign="bottom">
      <td width="28%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Title
          of Securities to be Registered</font></strong></div></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;border-left:solid windowtext .5pt">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Amount
          to be Registered <font size="1"><em>(2)</em></font></font></strong></div></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;border-left:solid windowtext .5pt">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Proposed
          Maximum Offering Price Per Share <font size="1"><em>(3)</em></font></font></strong></div></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;border-left:solid windowtext .5pt">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Proposed
          Maximum Aggregate Offering Price <font size="1"><em>(3)</em></font></font></strong></div></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt; border-left:solid windowtext .5pt">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Amount
          of Registration Fee</font></strong></div></td>
    </tr>
    <tr>
      <td style="border:none;border-bottom:solid windowtext .5pt;"><div align="center"><font size="2" face="Arial, Helvetica, sans-serif">Common
          Stock, par value $0.01 per share <font size="1"><em>(1)</em></font></font></div></td>
      <td style="border:none;border-bottom:solid windowtext .5pt;border-left:solid windowtext .5pt;"><div align="center"><font size="2" face="Arial, Helvetica, sans-serif">450,000</font></div></td>
      <td style="border:none;border-bottom:solid windowtext .5pt;border-left:solid windowtext .5pt;"><div align="center"><font size="1" face="Arial, Helvetica, sans-serif"><em>(4)</em></font></div></td>
      <td style="border:none;border-bottom:solid windowtext .5pt;border-left:solid windowtext .5pt;"><div align="center"><font size="2" face="Arial, Helvetica, sans-serif">$8,921,138<font size="1"><em>(4)</em></font></font></div></td>
      <td style="border:none;border-bottom:solid windowtext .5pt;border-left:solid windowtext .5pt;"><div align="center"><font size="2" face="Arial, Helvetica, sans-serif">$1,130.31<font size="1"><em>(4)</em></font></font></div></td>
    </tr>
    <tr>
      <td width="28%" style="border:none;border-bottom:double windowtext 1.5pt;"><div align="center"><font size="2" face="Arial, Helvetica, sans-serif">Rights
          to Purchase Series One Junior Participating Preferred Stock</font></div></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-left:solid windowtext .5pt;"><div align="center"><em><font size="1" face="Arial, Helvetica, sans-serif">(5)</font></em></div></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-left:solid windowtext .5pt;"><div align="center"><em><font size="1" face="Arial, Helvetica, sans-serif">(5)</font></em></div></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-left:solid windowtext .5pt;"><div align="center"><em><font size="1" face="Arial, Helvetica, sans-serif">(5)</font></em></div></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-left:solid windowtext .5pt;"><div align="center"><em><font size="1" face="Arial, Helvetica, sans-serif">(5)</font></em></div></td>
    </tr>
  </table>
  <p style="margin:0in 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(1)
    Additional number of shares of common stock of the registrant issuable pursuant
    to the TETRA Technologies, Inc. 1998 Director Stock Option Plan, as amended
    and restated.</font></p>
    <p style="margin:0in 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(2) Pursuant to Rule 416(a) under the Securities Act of 1933, as amended,
    the number of shares of common stock registered herein includes an indeterminate
    number of additional shares that may be issued under the above-referenced
    plan as a result of anti-dilution provisions, stock splits, stock dividends
    or similar transactions. </font></p>
    <p style="margin:0in 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(3) Estimated solely for the purpose of calculating the registration fee pursuant
    to Rule 457(c) and Rule 457(h)(1) under the Securities Act of 1933, as amended.<br>
    (4) The proposed maximum aggregate offering price and registration fee are
    based upon the sum of the products obtained by adding (i) the product of 272,061
    shares (the number of shares of common stock registered hereby as to which
    options have been granted but not exercised under the 1998 Director Stock
    Option Plan, as amended and restated) multiplied by $16.0148 (the weighted
    average exercise price of such options) and (ii) the product of 177,939 shares
    (the number of shares of common stock registered hereby as to which options
    may be granted under the 1998 Director Stock Option Plan, as amended and restated)
    multiplied by $25.65 (the average of the high and low sales prices per share
    of the common stock, as reported on The New York Stock Exchange on March 29,
    2004, which is within 5 days of the filing of this registration statement).</font></p>
    <p style="margin:0in 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(5) Each share of common stock includes two thirds of a right (as a result
    of the three for two stock split effected in August 2003) to purchase one
    one-hundredth of a share of the registrant&#8217;s Series One Junior Participating
    Preferred Stock, par value $0.01 per share. The rights to purchase shares
    of the registrant&#8217;s Series One Junior Participating Preferred Stock
    are attached to and trade with the shares of the registrant&#8217;s common
    stock being registered hereby. Value attributed to such rights, if any, is
    reflected in the market price of the registrant&#8217;s common stock.</font></p>
    <p style="margin:0in 0in 10pt;" align="left">&nbsp;</p>
  <hr noshade>
  <p style="page-break-before:always">
  <p style="margin:0in 0in 10pt;" align="center"><font face="Arial, Helvetica, sans-serif"><b><font size="2">PART
    I </font></b></font></p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>INFORMATION
    REQUIRED IN SECTION 10(A) PROSPECTUS</strong></font></p>

  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The
    document(s) containing the information specified in Part I of Form S-8 will
    be sent or given to participants as specified by Rule 428(b)(1) under the
    Securities Act of 1933, as amended, (the &quot;Securities Act&quot;). These
    documents and the documents incorporated herein by reference pursuant to Item
    3 of Part II of this registration statement, taken together, constitute a
    prospectus that meets the requirements of Section 10(a) of the Securities
    Act. </font></p>
  <p style="margin:0in 0in 10pt" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>PART
    II</strong></font></p>
  <p style="margin:0in 0in 10pt" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>INFORMATION
    REQUIRED IN THE REGISTRATION STATEMENT</strong></font></p>

  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">This
    Registration Statement on Form S-8 is being filed by TETRA Technologies, Inc.
    (the &#8220;Company&#8221;) solely to register additional securities. 75,000
    shares of the Company&#8217;s common stock issuable under the TETRA Technologies,
    Inc. 1998 Director Stock Option Plan, as amended and restated (the &#8220;Plan&#8221;),
    were previously registered on Form S-8 filed on April 9, 1999 (File No. 33-76039).
    Effective December 18, 2002, the plan was amended to increase the total amount
    of shares by 100,000 shares to 175,000 shares, and effective June 27, 2003,
    the number of shares of common stock offered or to be offered under the Plan
    was increased by 200,000 shares to 375,000 shares. The Company effected a
    three-for-two stock split as a stock dividend paid to its stockholders on
    August 21, 2003 (the &#8220;Stock Split&#8221;) which, pursuant to the anti-dilution
    provision of the Plan, increased the aggregate number of shares of common
    stock offered or to be offered under the Plan by 187,500 shares to 562,500.
    The additional 37,500 shares of common stock resulting from the Stock Split
    of the previously registered 75,000 shares are registered pursuant to the
    above described Registration Statement. The additional 450,000 shares of the
    Company&#8217;s common stock offered or to be offered under the Plan, resulting
    from the increase in the number of shares of common stock offered or to be
    offered under the Plan by 300,000 and the subsequent Stock Split of such 300,000
    shares are being registered herewith.</font></p>

  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">In
    accordance with General Instruction E of Form S-8, the Company hereby incorporates
    by reference the contents of the Company&#8217;s Registration Statement on
    Form S-8 (No. 33-76039) originally filed with the Securities and Exchange
    Commission (the &#8220;Commission&#8221;) on April 9, 1999. Upon written or
    oral request, any of the documents incorporated by reference in Item 3 of
    Part II of this registration statement (which documents are incorporated by
    reference in the Section 10(a) prospectus), other documents required to be
    delivered to eligible employees pursuant to Rule 428 (b) or additional information
    about the Plans are available without charge by contacting: Secretary, TETRA
    Technologies, Inc., 25025 I-45 North, The Woodlands, Texas 77380, (713) 367-1983.</font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">1</font></p>
	<hr noshade>
  <p style="page-break-before:always">
    <p style="margin:0in 0in 10pt" align="left"><font size="2" face="Arial, Helvetica, sans-serif"><strong>Item
    8. Exhibits.</strong></font></p>
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>Exhibit Number
          </u></font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif"><u>Description</u></font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.1</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Restated Certificate
          of Incorporation (filed as an exhibit to the Company's Registration
          Statement on Form S-1 (33-33586) and incorporated herein by reference).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.2</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Certificate of Amendment
          to Restated Certificate of Incorporation (filed as an exhibit to the
          Company's annual report on Form 10-K for the year ended December 31,
          2003 and incorporated herein by reference).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.3</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Certificate of Designation
          of Series One Junior Participating Preferred Stock of the Company dated
          October 27, 1998 (filed as an exhibit to the Company's Registration
          Statement on Form 8-A filed on October 27, 1998 and incorporated herein
          by reference).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.4*</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">TETRA Technologies,
          Inc. 1998 Director Stock Option Plan, as amended and restated.</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">5.1*</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Opinion of Andrews
          Kurth LLP.</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">23.1*</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Consent of Ernst
          &amp; Young LLP.</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">23.2</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Consent of Andrews
          Kurth LLP (included in Exhibit 5.1).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">24.1</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Power of Attorney
          (set forth on the signature page of this Registration Statement).</font></td>
    </tr>
  </table>
  <p style="margin:0in 0in 10pt" align="left"><font size="2" face="Arial, Helvetica, sans-serif">*
    Filed herewith</font></p>
  <p style="margin:0in 0in .0001pt;" align="left">&nbsp;</p>
  <p style="margin:0in 0in 10pt;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"><strong>Item
    9. Undertakings.</strong></font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> (a) The
    undersigned registrant hereby undertakes:</font></p>
  <p align="left" style="margin:0in 1in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> (1) To file,
    during any period in which offers or sales are being made, a post-effective
    amendment to this registration statement:</font></p>
  <p align="left" style="margin:0in 1.5in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    (i) To include any prospectus required by Section 10(a)(3) of the Securities
    Act of 1933;</font></p>
  <p align="left" style="margin:0in 1.5in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    (ii) To reflect in the prospectus any facts or events arising after the effective
    date of this registration statement (or the most recent post-effective amendment
    thereof) which, individually or in the aggregate, represent a fundamental
    change in the information set forth in this registration statement. Notwithstanding
    the foregoing, any increase or decrease in volume of securities offered (if
    the total dollar value of securities offered would not exceed that which was
    registered) and any deviation from the low or high end of the estimated maximum
    offering range may be reflected in the form of prospectus filed with the Commission
    pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price
    represent no more than a 20% change in the maximum aggregate offering price
    set forth in the &#8220;Calculation of Registration Fee&#8221; table in the
    effective registration statement;</font></p>
  <p align="left" style="margin:0in 1.5in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> (iii) To
    include any material information with respect to the plan of distribution
    not previously disclosed in this registration statement or any material change
    to such information in this registration statement;</font></p>
	<p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">2</font></p>
	<hr noshade>
  <p style="page-break-before:always">
  <p align="left" style="margin:0in 1in 10pt;text-indent:-0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"><em>Provided,
    however</em>, that paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply
    if the information required to be included in a post-effective amendment by
    those paragraphs is contained in periodic reports filed by the registrant
    pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
    1934 that are incorporated by reference in the registration statement.</font></p>
  <p align="left" style="margin:0in 1in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    (2) That, for the purpose of determining any liability under the Securities
    Act of 1933, each such post-effective amendment shall be deemed to be a new
    registration statement relating to the securities offered therein, and the
    offering of such securities at that time shall be deemed to be the initial
    bona fide offering thereof.</font></p>
  <p align="left" style="margin:0in 1in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> (3) To remove
    from registration by means of a post-effective amendment any of the securities
    being registered which remain unsold at the termination of the offering.</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    (b) The undersigned registrant hereby undertakes that, for purposes of determining
    any liability under the Securities Act of 1933, each filing of the registrant&#8217;s
    annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange
    Act of 1934 (and, where applicable, each filing of an employee benefit plan&#8217;s
    annual report pursuant to Section 15(d) of the Securities Exchange Act of
    1934) that is incorporated by reference in this Registration Statement shall
    be deemed to be a new registration statement relating to the securities offered
    therein, and the offering of such securities at that time shall be deemed
    to be the initial bona fide offering thereof.</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    (c) Insofar as indemnification for liabilities arising under the Securities
    Act of 1933 may be permitted to directors, officers and controlling persons
    of the registrant pursuant to the foregoing provisions, or otherwise, the
    registrant has been advised that in the opinion of the Securities and Exchange
    Commission such indemnification is against public policy as expressed in the
    Securities Act of 1933 and is, therefore, unenforceable. In the event that
    a claim for indemnification against such liabilities (other than the payment
    by the registrant of expenses incurred or paid by a director, officer or controlling
    person of the registrant in the successful defense of any action, suit or
    proceeding) is asserted by such director, officer or controlling person in
    connection with the securities being registered, the registrant will, unless
    in the opinion of its counsel the matter has been settled by controlling precedent,
    submit to a court of appropriate jurisdiction the question whether such indemnification
    by it is against public policy as expressed in the Securities Act of 1933
    and will be governed by the final adjudication of such issue.</font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">3</font></p>
	<hr noshade>
  <p style="page-break-before:always">
  <p style="margin:0pt 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">SIGNATURES</font></strong></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">Pursuant
    to the requirements of the Securities Act of 1933, as amended, the registrant
    certifies that it has reasonable grounds to believe that it meets all of the
    requirements for filing on Form S-8 and has duly caused this registration
    statement to be signed on its behalf by the undersigned, thereunto duly authorized,
    in The Woodlands, State of Texas, on the 30th day of March, 2004.</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:4in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"><strong>TETRA
    TECHNOLOGIES, INC.</strong></font></p>
  <p style="margin:0pt 0in 1pt;text-indent:4in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"><u>By:
    /s/ Geoffrey M. Hertel</u></font></p>
  <p style="margin:0pt 0in 1pt;text-indent:4in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">Geoffrey
    M. Hertel</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:4in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">President
    and Chief Executive Officer</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">KNOW
    ALL MEN BY THESE PRESENTS, that each of the undersigned officers and directors
    of TETRA Technologies, Inc. (the &#8220;Company&#8221;) hereby constitutes
    and appoints Geoffrey M. Hertel and Bass C. Wallace, Jr., or either of them
    (with full power to each of them to act alone), his true and lawful attorney-in-fact
    and agent, with full power of substitution, for him and on his behalf and
    in his name, place and stead, in any and all capacities, to sign, execute
    and file this Registration Statement under the Securities Act of 1933, as
    amended, and any or all amendments (including, without limitation, post-effective
    amendments), with all exhibits and any and all documents required to be filed
    with respect thereto, with the Securities and Exchange Commission or any regulatory
    authority, granting unto such attorneys-in-fact and agents, and each of them,
    full power and authority to do and perform each and every act and thing requisite
    and necessary to be done in and about the premises in order to effectuate
    the same, as fully to all intents and purposes as he himself might or could
    do, if personally present, hereby ratifying and confirming all that said attorneys-in-fact
    and agents, or any of them, or their substitute or substitutes, may lawfully
    do or cause to be done.</font></p>
  <p align="left" style="margin:0pt 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> Pursuant to the requirements
    of the Securities Act of 1933, as amended, this registration statement has
    been signed by the following persons in the capacities and on the dates indicated.</font></p>
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="30%"><p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>SIGNATURE</b></font></font></p></td>
      <td width="40%"><p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>TITLE</b></font></font></p></td>
      <td width="30%"><p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>DATE</b></font></font></p></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ J. Taft Symonds</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Chairman of the</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">J. Taft Symonds</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Board of Directors</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Geoffrey M.
          Hertel</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">President and Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Geoffrey M. Hertel</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif"><em>(Chief
          Executive Officer)</em></font> </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Joseph M.
          Abell, III</u> </font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Senior Vice President</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Joseph M. Abell,
          III </font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><em>(Chief Financial
          Officer)</em></font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Ben C. Chambers</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Vice President -
          Accounting </font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Ben C. Chambers</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><em>(Principal Accounting
          Officer) </em></font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Hoyt Ammidon,
          Jr.</u> </font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Hoyt Ammidon, Jr.</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Paul D. Coombs</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Paul D. Coombs</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Ralph S. Cunningham</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Ralph S. Cunningham</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Tom H. Delimitros</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Tom H. Delimitros</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Allen T. McInnes</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Allen T. McInnes</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Kenneth P.
          Mitchell</u></font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Kenneth P. Mitchell</font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>/s/ Kenneth E.
          White, Jr.</u> </font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Director</font></td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">March 30, 2004</font></td>
    </tr>
    <tr>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Kenneth E. White,
          Jr. </font></td>
      <td width="40%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
      <td width="30%"><p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;
      </td>
    </tr>
  </table>
  <p style="margin:0pt 0in 5pt;" align="left">&nbsp;</p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">EXHIBIT
    INDEX</font></strong></p>
	<table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif"><u>Exhibit Number
          </u></font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif"><u>Description</u></font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.1</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Restated Certificate
          of Incorporation (filed as an exhibit to the Company's Registration
          Statement on Form S-1 (33-33586) and incorporated herein by reference).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.2</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Certificate of Amendment
          to Restated Certificate of Incorporation (filed as an exhibit to the
          Company's annual report on Form 10-K for the year ended December 31,
          2003 and incorporated herein by reference).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.3</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Certificate of Designation
          of Series One Junior Participating Preferred Stock of the Company dated
          October 27, 1998 (filed as an exhibit to the Company's Registration
          Statement on Form 8-A filed on October 27, 1998 and incorporated herein
          by reference).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">4.4*</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">TETRA Technologies,
          Inc. 1998 Director Stock Option Plan, as amended and restated.</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">5.1*</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Opinion of Andrews
          Kurth LLP.</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">23.1*</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Consent of Ernst
          &amp; Young LLP.</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">23.2</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Consent of Andrews
          Kurth LLP (included in Exhibit 5.1).</font></td>
    </tr>
    <tr>
      <td width="5%">&nbsp;</td>
      <td width="20%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">24.1</font></td>
      <td width="5%">&nbsp;</td>
      <td width="70%"><p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">
          <font size="2" face="Arial, Helvetica, sans-serif">Power of Attorney
          (set forth on the signature page of this Registration Statement).</font></td>
    </tr>
  </table>
  <p style="margin:0in 0in 10pt" align="left"><font size="2" face="Arial, Helvetica, sans-serif">*
    Filed herewith</font></p>
  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left">&nbsp;</p>
   <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="right"><font size="2" face="Arial, Helvetica, sans-serif"><strong>EXHIBIT
    4.4</strong></font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>TETRA
    TECHNOLOGIES, INC.</strong></font></p>
  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">1998
    DIRECTOR STOCK OPTION PLAN</font></strong></p>
  <p style="margin:0in 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">(AS
    AMENDED THROUGH JUNE 27, 2003)</font></strong></p>
  <p style="margin:0in 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">I.
    PURPOSE OF THE PLAN</font></strong></p>
  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The
    purpose of the TETRA Technologies, Inc. 1998 Director Stock Option Plan (As
    Amended through June 27, 2003) (the &#8220;Plan&#8221;) is to permit TETRA
    Technologies, Inc., a Delaware corporation (the &#8220;Company&#8221;), to
    attract and retain qualified individuals to serve as directors of the Company
    and to align the interests of such individuals more closely with the interest
    of the Company&#8217;s stockholders. Accordingly, the Company may make awards
    (&#8220;Awards&#8221;) to directors of stock options (&#8220;Options&#8221;)
    with respect to shares of the Company&#8217;s common stock, par value $0.01
    per share (&#8220;Stock&#8221;). Options shall be nonqualified stock options,
    which are not intended to qualify as incentive stock options under Section
    422 of the Internal Revenue Code of 1986, as amended (the &#8220;Code&#8221;).</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>II.
    ADMINISTRATION</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The Plan shall be administered by the Board of Directors of the Company (the
    &#8220;Board&#8221;) or such committee of members of the Board as the Board
    may appoint (the &#8220;Committee&#8221;). Committee members may resign at
    any time by delivering written notice to the Board. Vacancies in the Committee,
    however caused, shall be filled by the Board. The Committee is authorized
    to interpret the Plan and may from time to time adopt such rules and regulations,
    not inconsistent with the provisions of the Plan, as it may deem advisable
    to carry out the Plan. The Committee shall act by a majority of its members
    in office and the Committee may act either by vote at a telephonic or other
    meeting or by a memorandum or other written instrument signed by all of the
    members of the Committee.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The Committee shall have the sole authority to determine any terms and provisions
    of the Awards issued prior to the Restatement Date and after the Restatement
    Date to the extent the terms of an Award are not inconsistent herewith. The
    Committee shall prepare and distribute, in such manner as the Committee determines
    to be appropriate, information about the Plan; and to make all other determinations
    deemed necessary or advisable for the administration of the Plan.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The day-to-day administration of the Plan may be carried out by such officers
    and employees of the Company as shall be designated from time to time by the
    Committee. Members of the Committee shall not receive compensation for their
    services as members, but all expenses and liabilities they incur in connection
    with the administration of the Plan shall be borne by the Company. The Committee
    may employ attorneys, consultants, accountants, appraisers, brokers or other
    persons, and the Committee, the Board, the Company and the officers and employees
    of the Company shall be entitled to rely upon the advice, opinions or valuations
    of any such persons. The interpretation and construction by the Committee
    of any provisions of the Plan or of any Award under the Plan and any determination
    by the Committee under any provision of the Plan or any such Award shall be
    final and conclusive for all purposes. Neither the Committee nor any member
    thereof shall be liable for any act, omission, interpretation, construction
    or determination made in connection with the Plan in good faith, and the members
    of the Committee shall be entitled to indemnification and reimbursement by
    the Company in respect of any claim, loss, damage or expense (including counsel
    fees) arising therefrom to the full extent permitted by law. The members of
    the Committee shall be named as insureds under any directors and officers
    liability insurance coverage that may be in effect from time to time.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">Only directors who are not employees of the Company shall be eligible to receive
    Awards under the Plan. In no event shall any director or his legal representatives,
    heirs, legatees, distributees, or successors have any right to participate
    in the Plan, except to the extent provided in the Plan.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>III.
    DEFINITIONS</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">Unless the context indicates otherwise, the following terms have the meanings
    set forth below:</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Annual Grant Date&#8221; means January 1 of each year.</font></p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Director&#8221;
    means each member of the Board on the Grant Date who is not an employee of
    the Company or of a parent, subsidiary or affiliate of the Company.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Exercise Price&#8221; means the price required to be paid for the Stock
    upon exercise of an Option. The Exercise Price shall be the Fair Market Value
    on the Grant Date.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Fair Market Value&#8221; means the closing price per share of the Stock
    on the date immediately preceding the Grant Date.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Grant Date&#8221; means the Annual Grant Date or Initial Grant Date,
    whichever is applicable.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Initial Grant Date&#8221; means the date on which a Director is first
    elected as a member of the Board.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">&#8220;Restatement Date&#8221; means December 18, 2002.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>IV.
    SHARES SUBJECT TO THE PLAN</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The aggregate number of shares which may be issued under Awards granted under
    the Plan shall not exceed 375,000 shares of Stock of the Company. Such shares
    shall consist of previously issued shares reacquired by the Company. Until
    termination of the Plan and the expiration of all Awards granted under the
    Plan, the Company shall at all times make available a sufficient number of
    shares to meet the requirements of the Plan and the outstanding Awards. The
    aggregate number of shares which may be issued under Awards granted under
    the Plan shall be subject to adjustment as provided in Article VII hereof.
    In the event that all or part of any Award expires, lapses, is forfeited or
    otherwise terminates, any shares of Stock allocable to the terminated portion
    of such Award may again be made subject to an Award granted under the Plan.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">
    <strong>V. GRANTS OF OPTIONS</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">A. GRANT OF OPTIONS. After the effective date hereof and prior to the Restatement
    Date, and subject to Article VI below, each Director on his Initial Grant
    Date and on each Annual Grant Date thereafter prior to the Restatement Date
    shall receive a grant of an Option to purchase 6,000 shares of Stock. After
    the Restatement Date and subject to Article VI below, each Director on his
    Initial Grant Date and on each Annual Grant Date thereafter shall receive
    a grant of an Option to purchase 8,000 shares of Stock. In addition to the
    automatic grants referred to above, other Awards may be made under the Plan
    in the sole discretion of the Committee.</font></p>
    <p style="margin:0in0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">B. TERMS OF OPTIONS. Upon the grant of each Award, the Company and each Director
    shall enter into an agreement specifying the purchase price and including
    or incorporating by reference the terms of the Option. After the Restatement
    Date each automatic grant described in V.A. above shall include the substance
    of all of the following provisions and such other provisions consistent with
    the Plan as the Committee may determine.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">1. The terms of each Option shall be five years from its Grant Date, subject
    to its earlier termination in accordance with paragraph 6.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">2. In no event shall an Option be exercisable prior to the first day that
    is six months after its Grant Date. Each Option shall be vested immediately
    on its Grant Date.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">3. The purchase price of Stock subject to each Option shall be the Fair Market
    Value of the Stock on the Grant Date of the Option.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">4. Upon exercise of an Option, the full Exercise Price for the shares and
    any required tax withholding with respect to which the Option is being exercised
    shall be payable to the Company (i) in cash or by check payable and acceptable
    to the Company, (ii) subject to the approval of the Committee, by tendering
    to the Company shares of Stock owned by the optionee for a period of at least
    six months prior to exercise and tender having an aggregate fair market value
    per share as of the date of exercise and tender that is not greater than the
    full Exercise Price for the shares with respect to which the Option is being
    exercised and by paying any remaining amount of the Exercise Price as provided
    in (i) above, or (iii) subject to such</font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">2</font></p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">instructions
    as the Committee may specify, at the optionee&#8217;s written request the
    Company may deliver certificates for the shares of Stock for which the Option
    is being exercised to a broker for sale on behalf of the optionee, provided
    that the optionee has irrevocably instructed such broker to remit directly
    to the Company on the optionee&#8217;s behalf the full amount of the Exercise
    Price and any required tax withholdings from the proceeds of such sale. In
    the event that the optionee elects to make payment as allowed under clause
    (ii) above, the Committee may, upon confirming that the optionee owns the
    number of additional shares being tendered, authorize the issuance of a new
    certificate for the number of shares being acquired pursuant to the exercise
    of the Option less the number of shares being tendered upon the exercise and
    return to the optionee (or not require surrender of) the certificate for the
    shares being tendered upon the exercise. Payment instruments will be received
    subject to collection.</font></p>

  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">5.
    No Option shall be transferable otherwise than by will or the laws of descent
    and distribution, and an Option shall be exercisable during the Director&#8217;s
    lifetime only by the Director. If a Director dies, the person or persons (including
    his estate) to whom his rights under any Option shall have passed by will
    or by laws of descent and distribution shall be entitled to exercise the Option
    for a period of one year after the death of the Director (but only to the
    extent exercisable by the Director at the time of his death).</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">6. If a Director&#8217;s membership on the Board terminates for any reason
    other than death, an Option held on the date of termination may be exercised
    in whole or in part (but only to the extent exercisable by the Director at
    the time of such termination) at any time within 90 days after the date of
    such termination (but in no event after the term of the Option expires) and
    shall thereafter automatically terminate.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">7. An Option may not be exercised for a fractional share. No Option may be
    exercised after the expiration of its term.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">8. An Option shall be deemed to be exercised when (i) written notice of such
    exercise has been given to the Company in accordance with the terms of the
    Award granting the Option by the person entitled to exercise the Option and
    (ii) full payment for the shares of Stock with respect to which the Option
    is exercised has been received by the Company. Until the issuance of the stock
    certificates (as evidenced by the appropriate entry on the books of the Company
    or of a duly authorized transfer agent of the Company), no right to vote or
    receive dividends or any other rights as a stockholder shall exist with respect
    to Option shares notwithstanding the exercise of the Option. An optionee shall
    have no rights as a stockholder with respect to shares covered by such optionee&#8217;s
    Award until the date of the issuance of shares to the optionee pursuant to
    such exercise. No adjustment will be made for dividends or other distributions
    or rights for which the record date is prior to the date of such issuance.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>VI.
    PRORATION OF GRANT</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">A Director who first becomes a member of the Board after the effective date
    hereof but before January 1, 2003 shall receive, on his first Annual Grant
    Date following the date on which he became a member of the Board, an Option
    to purchase the number of shares of Stock equal to the product of 6,000 and
    a fraction, the numerator of which is the number of days during the year preceding
    such first Annual Grant Date that such Director served as a member of the
    Board and the denominator of which is 365; provided, however, that any Director
    who becomes a member of the Board during 2002 shall receive, on his first
    Annual Grant Date in 2003, an Option to purchase the number of shares of Stock
    equal to the product of 8,000 and a fraction, the numerator of which is the
    number of days during 2002 that such Director served as a member of the Board
    and the denominator of which is 365.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">A Director who first becomes a member of the Board after January 1, 2003 shall
    receive, on his first Annual Grant Date following the date on which be became
    a member of the Board, an Option to purchase the number of shares of Stock
    equal to the product of 8,000 and a fraction, the numerator of which is the
    number of days during the year preceding such Initial Grant Date that such
    Director served as a member of the Board and the denominator of which is 365.</font></p>

  <p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">3</font></p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>VII.
    RECAPITALIZATION OR REORGANIZATION</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">A. The existence of the Plan and the Awards granted hereunder shall not affect
    in any way the right or power of the Board or the stockholders of the Company
    to make or authorize any adjustment, recapitalization, reorganization or other
    change in the Company&#8217;s capital structure or its business, any merger
    or consolidation of the Company, any issue of bonds, debentures, preferred
    or prior preference stocks ahead of or affecting Stock, the dissolution or
    liquidation of the Company or any sale or transfer of all or any part of its
    assets or business, or any other corporate act or proceeding.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">B. The shares with respect to which Awards may be granted are shares of Stock
    as presently constituted, but if, and whenever, prior to the termination of
    the Plan or the expiration of an Award theretofore granted, the Company shall
    effect a subdivision or consolidation of shares of Stock or the payment of
    a stock dividend on Stock without receipt of consideration by the Company,
    the remaining shares of Stock available under the Plan and the number of shares
    of Stock with respect to which such Award may thereafter be exercised (i)
    in the event of an increase in the number of outstanding shares, shall be
    proportionately increased and the Exercise Price per share shall be proportionately
    reduced, and (ii) in the event of a reduction in the number of outstanding
    shares, shall be proportionately reduced, and the Exercise Price per share
    shall be proportionately increased.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">C. Except as may otherwise be expressly provided in the Plan, the issuance
    by the Company of shares of stock of any class or securities convertible into
    shares of stock of any class, for cash, property, labor or services, upon
    direct sale, upon the exercise of rights or warrants to subscribe therefor,
    or upon conversion of shares or obligations of the Company convertible into
    such shares or other securities, and in any case whether or not for fair value,
    shall not affect, and no adjustment by reason thereof shall be made with respect
    to, the number of shares of Stock available under the Plan or subject to Awards
    theretofore granted or the Exercise Price per share of outstanding Awards.<br>
    D. If the Company effects a recapitalization or otherwise materially changes
    its capital structure (both of the foregoing are herein referred to as a &#8220;Fundamental
    Change&#8221;), then thereafter upon any exercise of an Option theretofore
    granted the optionee shall be entitled to purchase under such Option, in lieu
    of the number of shares of Stock as to which such Option shall then be exercisable,
    the number and class of shares of stock and securities to which the optionee
    would have been entitled pursuant to the terms of the Fundamental Change if,
    immediately prior to such Fundamental Change, the optionee had been the holder
    of record of the number of shares of Stock as to which such Option is then
    exercisable.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>VIII.
    OPTIONEE&#8217;S AGREEMENT</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">If, at the time of the exercise of any Option, in the opinion of counsel for
    the Company, it is necessary or desirable, in order to comply with any then
    applicable laws or regulations relating to the sale of securities, for the
    optionee exercising the Option to agree to hold any shares issued to the optionee
    for investment and without intention to resell or distribute the same and
    for the optionee to agree to dispose of such shares only in compliance with
    such laws and regulations, the optionee will, upon the request of the Company,
    execute and deliver to the Company a further agreement to such effect.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>IX.
    TERMINATION OF AUTHORITY TO GRANT AWARDS</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">No Awards will be made pursuant to this Plan after December 14, 2008.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>X.
    AMENDMENT AND TERMINATION</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">The Board may from time to time and at any time alter, amend, suspend, discontinue
    or terminate this Plan and any Awards hereunder; provided, that no change
    in any Award theretofore granted may be made which would impair the rights
    of the optionee with respect to an Option under such Award, without the consent
    of such optionee.</font></p>

  <p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">4</font></p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>XI.
    PREEMPTION BY APPLICABLE LAWS AND REGULATIONS</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">Anything in the Plan or any Award entered into pursuant to the Plan to the
    contrary notwithstanding, if any law, regulation or requirement of any governmental
    authority shall require either Company or the optionee to take any action
    or make any determination in connection with issuance or other distribution
    of, or payment for shares of Stock, the shares then to be issued or distributed,
    or the payment for such shares, as the case may be, shall be deferred until
    such action shall have been taken. It is the Company's intent that the Plan
    comply in all respects with rule 16-b3 (the &#8220;Rule&#8221;) of the Securities
    Act of 1933, as amended (the &#8220;Act&#8221;), and any regulations promulgated
    thereunder. If any provision of the plan is later found not to be in compliance
    with the Rule, the provision shall be deemed null and void. All grants and
    exercises of stock options under the Plan shall be executed in accordance
    with the requirements of Section 16 of the Act, as amended and any regulations
    promulgated thereunder. To the extent that any of the provisions contained
    herein do not conform with Rule 16-b3 of the Act or any amendments thereto
    or any successor regulation, then the Committee may make such modifications
    so as to conform the Plan and any stock options granted thereunder to the
    Rule's requirements.</font></p>

  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>XII.
    MISCELLANEOUS</strong></font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">A. NO RIGHT TO CORPORATE ASSETS. Nothing contained in the Plan shall be construed
    as giving any optionee, such optionee&#8217;s beneficiaries or any other person
    any equity or other interest of any kind in any assets of the Company or creating
    a trust of any kind or a fiduciary relationship of any kind between the Company
    and any such person.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">B. NO RESTRICTION ON CORPORATE ACTION. Nothing contained in the Plan shall
    be construed to prevent the Company from taking any corporate action that
    is deemed by the Company to be appropriate or in its best interest, whether
    or not such action would have an adverse effect on the Plan or any Award made
    under the Plan. No optionee, beneficiary or other person shall have any claim
    against the Company as a result of any such action.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">C. NON-ASSIGNABILITY. Neither an optionee nor an optionee&#8217;s beneficiary
    shall have the power or right to sell, exchange, pledge, transfer, assign
    or otherwise encumber or dispose of such optionee&#8217;s or beneficiary&#8217;s
    interest arising under the Plan or any Award received under the Plan; nor
    shall such interest be subject to seizure for the payment of an optionee&#8217;s
    or beneficiary&#8217;s debts, judgments, alimony, or separate maintenance
    or be transferable by operation of law in the event of an optionee&#8217;s
    or beneficiary&#8217;s bankruptcy or insolvency and to the extent any such
    interest arising under the Plan or an Award received under the Plan is awarded
    to a spouse pursuant to any divorce proceeding, such interest shall be deemed
    to be terminated and forfeited notwithstanding any vesting provisions or other
    terms herein or in the agreement evidencing such Award. Notwithstanding the
    above, nothing herein shall be construed to prevent the issuance of shares
    pursuant to an order of a court of competent jurisdiction which the Committee
    in its sole discretion deems to be valid and enforceable against the Company,
    and any such issuance shall be deemed in full satisfaction of any obligation
    under the applicable Award.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">D. WITHHOLDING OF TAX. To the extent that (i) the Company has a duty to withhold
    for federal or state income tax or (ii) the Company&#8217;s ability to take
    a tax deduction is contingent upon such withholding, optionee shall pay the
    Company at the time of exercise (or other taxable event) such amount of money
    as the Company may be required to withhold or pay under applicable tax laws
    or regulations. If the optionee fails to do so, the Company may refuse to
    issue any shares pursuant to exercise of an Option, or may withhold from any
    other amounts payable to optionee any tax required to be withheld.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">E. APPLICATION OF FUNDS. The proceeds received by the Company from the sale
    of shares pursuant to the Plan will be used for general purposes.</font></p>
    <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">F. GOVERNING LAW; CONSTRUCTION. All rights and obligations under the Plan
    shall be governed by, and the Plan shall be construed in accordance with,
    the laws of the State of Delaware without regard to the principles of conflicts
    of laws. Titles and headings to Sections herein are for purposes of reference
    only, and shall in no way limit, define or otherwise affect the meaning or
    interpretation of any provisions of the Plan.</font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">5</font></p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="right"><font size="2" face="Arial, Helvetica, sans-serif"><strong>EXHIBIT
    5.1</strong></font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">Andrews
    Kurth LLP</font></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">10001
    Woodloch Forest Drive, Suite 200</font></p>

  <p style="margin:0in 0in 1pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif">The
    Woodlands, Texas 77380</font></p>

  <p align="center" style="margin:0in 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif"><br>
    March 30, 2004</font></p>
  <p align="left" style="margin:0in 0in 1pt;"><font size="2" face="Arial, Helvetica, sans-serif"> Board of Directors</font></p>
   <p align="left" style="margin:0in 0in 1pt;"><font size="2" face="Arial, Helvetica, sans-serif"> TETRA Technologies, Inc.</font></p>
    <p align="left" style="margin:0in 0in 1pt;"><font size="2" face="Arial, Helvetica, sans-serif">25025 I-45 North</font></p>
    <p align="left" style="margin:0in 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif">The Woodlands, Texas 77380</font></p>
  <p align="left" style="margin:0in 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif"> Gentlemen:</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> We have acted as
    counsel to TETRA Technologies, Inc., a Delaware corporation (the &#8220;Company&#8221;),
    in connection with the Company&#8217;s Registration Statement on Form S-8
    (the &#8220;Registration Statement&#8221;) relating to the registration under
    the Securities Act of 1933, as amended, of the issuance of an additional 450,000
    shares (the &#8220;Plan Shares&#8221;) of the Company&#8217;s common stock,
    $0.01 par value (the &#8220;Common Stock&#8221;), pursuant to the Company&#8217;s
    1998 Director Stock Option Plan, as amended and restated (the &#8220;Plan&#8221;).</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif"> In connection herewith,
    we have examined copies of such statutes, regulations, corporate records and
    documents, certificates of public and corporate officials and other agreements,
    contracts, documents and such other instruments as we have deemed necessary
    as a basis for the opinion hereinafter expressed. In such examination, we
    have assumed the genuineness of all signatures, the authenticity of all documents
    submitted to us as originals and the conformity with the original documents
    of all documents submitted to us as copies. We have also relied, to the extent
    we deem such reliance proper, upon information supplied by officers and employees
    of the Company with respect to various factual matters material to our opinion.</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    Based upon the foregoing and subject to the limitations and exceptions set
    forth below, we are of the opinion that the Plan Shares have been duly authorized,
    and upon issuance thereof by the Company and payment therefor pursuant to
    the Plan, will be validly issued and will constitute fully paid and nonassessable
    shares of Common Stock.</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    This opinion is limited in all respects to the General Corporation Law of
    the State of Delaware. We express no opinion other than as to the federal
    laws of the United States of America and the Delaware General Corporation
    Law. We hereby consent to the filing of this opinion as an exhibit to the
    Registration Statement and to the reference to this firm under the heading
    &#8220;Exhibits&#8221; therein. In giving this consent we do not admit that
    we are &#8220;experts&#8221; under the Securities Act of 1933, as amended,
    or the rules and regulations of the Securities and Exchange Commission issued
    thereunder. This opinion is expressed as of the date hereof, and we disclaim
    any undertaking to advise you of any subsequent changes of the facts stated
    or assumed herein or any subsequent changes in applicable law.</font></p>
  <p align="left" style="margin:0in 0in 5pt;text-indent:4in;"><font size="2" face="Arial, Helvetica, sans-serif"> Very truly yours,</font></p>
  <p align="left" style="margin:0in 0in 10pt;text-indent:4in;"><font size="2" face="Arial, Helvetica, sans-serif">
    /s/ Andrews Kurth LLP</font></p>
  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left">&nbsp;</p>
  <hr noshade>
  <p align="left" style="page-break-before:always"> </p>
  <p style="margin:0in 0in 10pt;" align="right"><font size="2" face="Arial, Helvetica, sans-serif"><strong>EXHIBIT
    23.1 </strong></font></p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><strong>CONSENT
    OF INDEPENDENT AUDITORS </strong></font></p>
  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">We
    consent to the incorporation by reference in the Registration Statement (Form
    S-8), pertaining to the TETRA Technologies, Inc. 1998 Director Stock Option
    Plan, as amended and restated, of our report dated February 23, 2004, with
    respect to the consolidated financial statements and schedule of TETRA Technologies,
    Inc. included in the Annual Report (Form 10-K) for the year ended December
    31, 2003.</font></p>
  <p align="left" style="margin:0in 0in 1pt;"><font size="2" face="Arial, Helvetica, sans-serif">Ernst &amp; Young
    LLP</font></p>
   <p align="left" style="margin:0in 0in 1pt;"><font size="2" face="Arial, Helvetica, sans-serif"> Houston, Texas</font></p>

  <p align="left" style="margin:0in 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif">
    March 25, 2004</font></p>
  <p style="margin:0in 0in 10pt;text-indent:0.5in;" align="left">&nbsp;</p>
</div>
  </body>
</html>
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{"company-data": {"conformed-name": "TETRA TECHNOLOGIES INC", "cik": "0000844965", "assigned-sic": "2810", "irs-number": "742148293", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-114034", "film-number": "04700689"}, "business-address": {"street1": "25025 I-45N", "city": "THE WOODLANDS", "state": "TX", "zip": "77380", "phone": "2813671983"}, "mail-address": {"street1": "25025 I-45 NORTH", "city": "THE WOODLANDS", "state": "TX", "zip": "77380"}}
S-8 1998 Dir Plan
As
    filed with the Securities and Exchange Commission on March 30, 2004.
Registration
    No. 333-
SECURITIES
    AND EXCHANGE COMMISSION
WASHINGTON,
    D.C. 20549
FORM
    S-8
REGISTRATION
    STATEMENT
UNDER
    THE SECURITIES ACT OF 1933
TETRA
    Technologies, Inc.
(Exact
    name of registrant as specified in its charter)
Delaware
74-2148293
(State
          or other jurisdiction of incorporation or organization)
(I.R.S.
          Employer Identification No.)
25025
    Interstate 45 North, Suite 600
The
    Woodlands, Texas 77380
(Address,
    including zip code, of Principal Executive Offices)
TETRA
    Technologies, Inc. 1998 Director Stock Option Plan,
as
    amended and restated
(Full
    title of the plan)
Bass
    C. Wallace, Jr.
General
    Counsel
25025
    Interstate 45 North, Suite 600
The
    Woodlands, Texas 77380
(713)
    367-1983
(Name,
    address, including zip code, and telephone number,
including
    area code, of agent for service)
CALCULATION
    OF REGISTRATION FEE
Title
          of Securities to be Registered
Amount
          to be Registered
(2)
Proposed
          Maximum Offering Price Per Share
(3)
Proposed
          Maximum Aggregate Offering Price
(3)
Amount
          of Registration Fee
Common
          Stock, par value $0.01 per share
(1)
450,000
(4)
$8,921,138
(4)
$1,130.31
(4)
Rights
          to Purchase Series One Junior Participating Preferred Stock
(5)
(5)
(5)
(5)
(1)
    Additional number of shares of common stock of the registrant issuable pursuant
    to the TETRA Technologies, Inc. 1998 Director Stock Option Plan, as amended
    and restated.
(2) Pursuant to Rule 416(a) under the Securities Act of 1933, as amended,
    the number of shares of common stock registered herein includes an indeterminate
    number of additional shares that may be issued under the above-referenced
    plan as a result of anti-dilution provisions, stock splits, stock dividends
    or similar transactions.
(3) Estimated solely for the purpose of calculating the registration fee pursuant
    to Rule 457(c) and Rule 457(h)(1) under the Securities Act of 1933, as amended.
(4) The proposed maximum aggregate offering price and registration fee are
    based upon the sum of the products obtained by adding (i) the product of 272,061
    shares (the number of shares of common stock registered hereby as to which
    options have been granted but not exercised under the 1998 Director Stock
    Option Plan, as amended and restated) multiplied by $16.0148 (the weighted
    average exercise price of such options) and (ii) the product of 177,939 shares
    (the number of shares of common stock registered hereby as to which options
    may be granted under the 1998 Director Stock Option Plan, as amended and restated)
    multiplied by $25.65 (the average of the high and low sales prices per share
    of the common stock, as reported on The New York Stock Exchange on March 29,
    2004, which is within 5 days of the filing of this registration statement).
(5) Each share of common stock includes two thirds of a right (as a result
    of the three for two stock split effected in August 2003) to purchase one
    one-hundredth of a share of the registrant's Series One Junior Participating
    Preferred Stock, par value $0.01 per share. The rights to purchase shares
    of the registrant's Series One Junior Participating Preferred Stock
    are attached to and trade with the shares of the registrant's common
    stock being registered hereby. Value attributed to such rights, if any, is
    reflected in the market price of the registrant's common stock.
PART
    I
INFORMATION
    REQUIRED IN SECTION 10(A) PROSPECTUS
The
    document(s) containing the information specified in Part I of Form S-8 will
    be sent or given to participants as specified by Rule 428(b)(1) under the
    Securities Act of 1933, as amended, (the "Securities Act"). These
    documents and the documents incorporated herein by reference pursuant to Item
    3 of Part II of this registration statement, taken together, constitute a
    prospectus that meets the requirements of Section 10(a) of the Securities
    Act.
PART
    II
INFORMATION
    REQUIRED IN THE REGISTRATION STATEMENT
This
    Registration Statement on Form S-8 is being filed by TETRA Technologies, Inc.
    (the "Company") solely to register additional securities. 75,000
    shares of the Company's common stock issuable under the TETRA Technologies,
    Inc. 1998 Director Stock Option Plan, as amended and restated (the "Plan"),
    were previously registered on Form S-8 filed on April 9, 1999 (File No. 33-76039).
    Effective December 18, 2002, the plan was amended to increase the total amount
    of shares by 100,000 shares to 175,000 shares, and effective June 27, 2003,
    the number of shares of common stock offered or to be offered under the Plan
    was increased by 200,000 shares to 375,000 shares. The Company effected a
    three-for-two stock split as a stock dividend paid to its stockholders on
    August 21, 2003 (the "Stock Split") which, pursuant to the anti-dilution
    provision of the Plan, increased the aggregate number of shares of common
    stock offered or to be offered under the Plan by 187,500 shares to 562,500.
    The additional 37,500 shares of common stock resulting from the Stock Split
    of the previously registered 75,000 shares are registered pursuant to the
    above described Registration Statement. The additional 450,000 shares of the
    Company's common stock offered or to be offered under the Plan, resulting
    from the increase in the number of shares of common stock offered or to be
    offered under the Plan by 300,000 and the subsequent Stock Split of such 300,000
    shares are being registered herewith.
In
    accordance with General Instruction E of Form S-8, the Company hereby incorporates
    by reference the contents of the Company's Registration Statement on
    Form S-8 (No. 33-76039) originally filed with the Securities and Exchange
    Commission (the "Commission") on April 9, 1999. Upon written or
    oral request, any of the documents incorporated by reference in Item 3 of
    Part II of this registration statement (which documents are incorporated by
    reference in the Section 10(a) prospectus), other documents required to be
    delivered to eligible employees pursuant to Rule 428 (b) or additional information
    about the Plans are available without charge by contacting: Secretary, TETRA
    Technologies, Inc., 25025 I-45 North, The Woodlands, Texas 77380, (713) 367-1983.
1
Item
    8. Exhibits.
Exhibit Number
Description
4.1
Restated Certificate
          of Incorporation (filed as an exhibit to the Company's Registration
          Statement on Form S-1 (33-33586) and incorporated herein by reference).
4.2
Certificate of Amendment
          to Restated Certificate of Incorporation (filed as an exhibit to the
          Company's annual report on Form 10-K for the year ended December 31,
          2003 and incorporated herein by reference).
4.3
Certificate of Designation
          of Series One Junior Participating Preferred Stock of the Company dated
          October 27, 1998 (filed as an exhibit to the Company's Registration
          Statement on Form 8-A filed on October 27, 1998 and incorporated herein
          by reference).
4.4*
TETRA Technologies,
          Inc. 1998 Director Stock Option Plan, as amended and restated.
5.1*
Opinion of Andrews
          Kurth LLP.
23.1*
Consent of Ernst
          & Young LLP.
23.2
Consent of Andrews
          Kurth LLP (included in Exhibit 5.1).
24.1
Power of Attorney
          (set forth on the signature page of this Registration Statement).
*
    Filed herewith
Item
    9. Undertakings.
(a) The
    undersigned registrant hereby undertakes:
(1) To file,
    during any period in which offers or sales are being made, a post-effective
    amendment to this registration statement:
(i) To include any prospectus required by Section 10(a)(3) of the Securities
    Act of 1933;
(ii) To reflect in the prospectus any facts or events arising after the effective
    date of this registration statement (or the most recent post-effective amendment
    thereof) which, individually or in the aggregate, represent a fundamental
    change in the information set forth in this registration statement. Notwithstanding
    the foregoing, any increase or decrease in volume of securities offered (if
    the total dollar value of securities offered would not exceed that which was
    registered) and any deviation from the low or high end of the estimated maximum
    offering range may be reflected in the form of prospectus filed with the Commission
    pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price
    represent no more than a 20% change in the maximum aggregate offering price
    set forth in the "Calculation of Registration Fee" table in the
    effective registration statement;
(iii) To
    include any material information with respect to the plan of distribution
    not previously disclosed in this registration statement or any material change
    to such information in this registration statement;
2
Provided,
    however
, that paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply
    if the information required to be included in a post-effective amendment by
    those paragraphs is contained in periodic reports filed by the registrant
    pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
    1934 that are incorporated by reference in the registration statement.
(2) That, for the purpose of determining any liability under the Securities
    Act of 1933, each such post-effective amendment shall be deemed to be a new
    registration statement relating to the securities offered therein, and the
    offering of such securities at that time shall be deemed to be the initial
    bona fide offering thereof.
(3) To remove
    from registration by means of a post-effective amendment any of the securities
    being registered which remain unsold at the termination of the offering.
(b) The undersigned registrant hereby undertakes that, for purposes of determining
    any liability under the Securities Act of 1933, each filing of the registrant's
    annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange
    Act of 1934 (and, where applicable, each filing of an employee benefit plan's
    annual report pursuant to Section 15(d) of the Securities Exchange Act of
    1934) that is incorporated by reference in this Registration Statement shall
    be deemed to be a new registration statement relating to the securities offered
    therein, and the offering of such securities at that time shall be deemed
    to be the initial bona fide offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities
    Act of 1933 may be permitted to directors, officers and controlling persons
    of the registrant pursuant to the foregoing provisions, or otherwise, the
    registrant has been advised that in the opinion of the Securities and Exchange
    Commission such indemnification is against public policy as expressed in the
    Securities Act of 1933 and is, therefore, unenforceable. In the event that
    a claim for indemnification against such liabilities (other than the payment
    by the registrant of expenses incurred or paid by a director, officer or controlling
    person of the registrant in the successful defense of any action, suit or
    proceeding) is asserted by such director, officer or controlling person in
    connection with the securities being registered, the registrant will, unless
    in the opinion of its counsel the matter has been settled by controlling precedent,
    submit to a court of appropriate jurisdiction the question whether such indemnification
    by it is against public policy as expressed in the Securities Act of 1933
    and will be governed by the final adjudication of such issue.
3
SIGNATURES
Pursuant
    to the requirements of the Securities Act of 1933, as amended, the registrant
    certifies that it has reasonable grounds to believe that it meets all of the
    requirements for filing on Form S-8 and has duly caused this registration
    statement to be signed on its behalf by the undersigned, thereunto duly authorized,
    in The Woodlands, State of Texas, on the 30th day of March, 2004.
TETRA
    TECHNOLOGIES, INC.
By:
    /s/ Geoffrey M. Hertel
Geoffrey
    M. Hertel
President
    and Chief Executive Officer
KNOW
    ALL MEN BY THESE PRESENTS, that each of the undersigned officers and directors
    of TETRA Technologies, Inc. (the "Company") hereby constitutes
    and appoints Geoffrey M. Hertel and Bass C. Wallace, Jr., or either of them
    (with full power to each of them to act alone), his true and lawful attorney-in-fact
    and agent, with full power of substitution, for him and on his behalf and
    in his name, place and stead, in any and all capacities, to sign, execute
    and file this Registration Statement under the Securities Act of 1933, as
    amended, and any or all amendments (including, without limitation, post-effective
    amendments), with all exhibits and any and all documents required to be filed
    with respect thereto, with the Securities and Exchange Commission or any regulatory
    authority, granting unto such attorneys-in-fact and agents, and each of them,
    full power and authority to do and perform each and every act and thing requisite
    and necessary to be done in and about the premises in order to effectuate
    the same, as fully to all intents and purposes as he himself might or could
    do, if personally present, hereby ratifying and confirming all that said attorneys-in-fact
    and agents, or any of them, or their substitute or substitutes, may lawfully
    do or cause to be done.
Pursuant to the requirements
    of the Securities Act of 1933, as amended, this registration statement has
    been signed by the following persons in the capacities and on the dates indicated.
SIGNATURE
TITLE
DATE
/s/ J. Taft Symonds
Chairman of the
March 30, 2004
J. Taft Symonds
Board of Directors
/s/ Geoffrey M.
          Hertel
President and Director
March 30, 2004
Geoffrey M. Hertel
(Chief
          Executive Officer)
/s/ Joseph M.
          Abell, III
Senior Vice President
March 30, 2004
Joseph M. Abell,
          III
(Chief Financial
          Officer)
/s/ Ben C. Chambers
Vice President -
          Accounting
March 30, 2004
Ben C. Chambers
(Principal Accounting
          Officer)
/s/ Hoyt Ammidon,
          Jr.
Director
March 30, 2004
Hoyt Ammidon, Jr.
/s/ Paul D. Coombs
Director
March 30, 2004
Paul D. Coombs
/s/ Ralph S. Cunningham
Director
March 30, 2004
Ralph S. Cunningham
/s/ Tom H. Delimitros
Director
March 30, 2004
Tom H. Delimitros
/s/ Allen T. McInnes
Director
March 30, 2004
Allen T. McInnes
/s/ Kenneth P.
          Mitchell
Director
March 30, 2004
Kenneth P. Mitchell
/s/ Kenneth E.
          White, Jr.
Director
March 30, 2004
Kenneth E. White,
          Jr.
EXHIBIT
    INDEX
Exhibit Number
Description
4.1
Restated Certificate
          of Incorporation (filed as an exhibit to the Company's Registration
          Statement on Form S-1 (33-33586) and incorporated herein by reference).
4.2
Certificate of Amendment
          to Restated Certificate of Incorporation (filed as an exhibit to the
          Company's annual report on Form 10-K for the year ended December 31,
          2003 and incorporated herein by reference).
4.3
Certificate of Designation
          of Series One Junior Participating Preferred Stock of the Company dated
          October 27, 1998 (filed as an exhibit to the Company's Registration
          Statement on Form 8-A filed on October 27, 1998 and incorporated herein
          by reference).
4.4*
TETRA Technologies,
          Inc. 1998 Director Stock Option Plan, as amended and restated.
5.1*
Opinion of Andrews
          Kurth LLP.
23.1*
Consent of Ernst
          & Young LLP.
23.2
Consent of Andrews
          Kurth LLP (included in Exhibit 5.1).
24.1
Power of Attorney
          (set forth on the signature page of this Registration Statement).
*
    Filed herewith
EXHIBIT
    4.4
TETRA
    TECHNOLOGIES, INC.
1998
    DIRECTOR STOCK OPTION PLAN
(AS
    AMENDED THROUGH JUNE 27, 2003)
I.
    PURPOSE OF THE PLAN
The
    purpose of the TETRA Technologies, Inc. 1998 Director Stock Option Plan (As
    Amended through June 27, 2003) (the "Plan") is to permit TETRA
    Technologies, Inc., a Delaware corporation (the "Company"), to
    attract and retain qualified individuals to serve as directors of the Company
    and to align the interests of such individuals more closely with the interest
    of the Company's stockholders. Accordingly, the Company may make awards
    ("Awards") to directors of stock options ("Options")
    with respect to shares of the Company's common stock, par value $0.01
    per share ("Stock"). Options shall be nonqualified stock options,
    which are not intended to qualify as incentive stock options under Section
    422 of the Internal Revenue Code of 1986, as amended (the "Code").
II.
    ADMINISTRATION
The Plan shall be administered by the Board of Directors of the Company (the
    "Board") or such committee of members of the Board as the Board
    may appoint (the "Committee"). Committee members may resign at
    any time by delivering written notice to the Board. Vacancies in the Committee,
    however caused, shall be filled by the Board. The Committee is authorized
    to interpret the Plan and may from time to time adopt such rules and regulations,
    not inconsistent with the provisions of the Plan, as it may deem advisable
    to carry out the Plan. The Committee shall act by a majority of its members
    in office and the Committee may act either by vote at a telephonic or other
    meeting or by a memorandum or other written instrument signed by all of the
    members of the Committee.
The Committee shall have the sole authority to determine any terms and provisions
    of the Awards issued prior to the Restatement Date and after the Restatement
    Date to the extent the terms of an Award are not inconsistent herewith. The
    Committee shall prepare and distribute, in such manner as the Committee determines
    to be appropriate, information about the Plan; and to make all other determinations
    deemed necessary or advisable for the administration of the Plan.
The day-to-day administration of the Plan may be carried out by such officers
    and employees of the Company as shall be designated from time to time by the
    Committee. Members of the Committee shall not receive compensation for their
    services as members, but all expenses and liabilities they incur in connection
    with the administration of the Plan shall be borne by the Company. The Committee
    may employ attorneys, consultants, accountants, appraisers, brokers or other
    persons, and the Committee, the Board, the Company and the officers and employees
    of the Company shall be entitled to rely upon the advice, opinions or valuations
    of any such persons. The interpretation and construction by the Committee
    of any provisions of the Plan or of any Award under the Plan and any determination
    by the Committee under any provision of the Plan or any such Award shall be
    final and conclusive for all purposes. Neither the Committee nor any member
    thereof shall be liable for any act, omission, interpretation, construction
    or determination made in connection with the Plan in good faith, and the members
    of the Committee shall be entitled to indemnification and reimbursement by
    the Company in respect of any claim, loss, damage or expense (including counsel
    fees) arising therefrom to the full extent permitted by law. The members of
    the Committee shall be named as insureds under any directors and officers
    liability insurance coverage that may be in effect from time to time.
Only directors who are not employees of the Company shall be eligible to receive
    Awards under the Plan. In no event shall any director or his legal representatives,
    heirs, legatees, distributees, or successors have any right to participate
    in the Plan, except to the extent provided in the Plan.
III.
    DEFINITIONS
Unless the context indicates otherwise, the following terms have the meanings
    set forth below:
"Annual Grant Date" means January 1 of each year.
"Director"
    means each member of the Board on the Grant Date who is not an employee of
    the Company or of a parent, subsidiary or affiliate of the Company.
"Exercise Price" means the price required to be paid for the Stock
    upon exercise of an Option. The Exercise Price shall be the Fair Market Value
    on the Grant Date.
"Fair Market Value" means the closing price per share of the Stock
    on the date immediately preceding the Grant Date.
"Grant Date" means the Annual Grant Date or Initial Grant Date,
    whichever is applicable.
"Initial Grant Date" means the date on which a Director is first
    elected as a member of the Board.
"Restatement Date" means December 18, 2002.
IV.
    SHARES SUBJECT TO THE PLAN
The aggregate number of shares which may be issued under Awards granted under
    the Plan shall not exceed 375,000 shares of Stock of the Company. Such shares
    shall consist of previously issued shares reacquired by the Company. Until
    termination of the Plan and the expiration of all Awards granted under the
    Plan, the Company shall at all times make available a sufficient number of
    shares to meet the requirements of the Plan and the outstanding Awards. The
    aggregate number of shares which may be issued under Awards granted under
    the Plan shall be subject to adjustment as provided in Article VII hereof.
    In the event that all or part of any Award expires, lapses, is forfeited or
    otherwise terminates, any shares of Stock allocable to the terminated portion
    of such Award may again be made subject to an Award granted under the Plan.
V. GRANTS OF OPTIONS
A. GRANT OF OPTIONS. After the effective date hereof and prior to the Restatement
    Date, and subject to Article VI below, each Director on his Initial Grant
    Date and on each Annual Grant Date thereafter prior to the Restatement Date
    shall receive a grant of an Option to purchase 6,000 shares of Stock. After
    the Restatement Date and subject to Article VI below, each Director on his
    Initial Grant Date and on each Annual Grant Date thereafter shall receive
    a grant of an Option to purchase 8,000 shares of Stock. In addition to the
    automatic grants referred to above, other Awards may be made under the Plan
    in the sole discretion of the Committee.
B. TERMS OF OPTIONS. Upon the grant of each Award, the Company and each Director
    shall enter into an agreement specifying the purchase price and including
    or incorporating by reference the terms of the Option. After the Restatement
    Date each automatic grant described in V.A. above shall include the substance
    of all of the following provisions and such other provisions consistent with
    the Plan as the Committee may determine.
1. The terms of each Option shall be five years from its Grant Date, subject
    to its earlier termination in accordance with paragraph 6.
2. In no event shall an Option be exercisable prior to the first day that
    is six months after its Grant Date. Each Option shall be vested immediately
    on its Grant Date.
3. The purchase price of Stock subject to each Option shall be the Fair Market
    Value of the Stock on the Grant Date of the Option.
4. Upon exercise of an Option, the full Exercise Price for the shares and
    any required tax withholding with respect to which the Option is being exercised
    shall be payable to the Company (i) in cash or by check payable and acceptable
    to the Company, (ii) subject to the approval of the Committee, by tendering
    to the Company shares of Stock owned by the optionee for a period of at least
    six months prior to exercise and tender having an aggregate fair market value
    per share as of the date of exercise and tender that is not greater than the
    full Exercise Price for the shares with respect to which the Option is being
    exercised and by paying any remaining amount of the Exercise Price as provided
    in (i) above, or (iii) subject to such
2
instructions
    as the Committee may specify, at the optionee's written request the
    Company may deliver certificates for the shares of Stock for which the Option
    is being exercised to a broker for sale on behalf of the optionee, provided
    that the optionee has irrevocably instructed such broker to remit directly
    to the Company on the optionee's behalf the full amount of the Exercise
    Price and any required tax withholdings from the proceeds of such sale. In
    the event that the optionee elects to make payment as allowed under clause
    (ii) above, the Committee may, upon confirming that the optionee owns the
    number of additional shares being tendered, authorize the issuance of a new
    certificate for the number of shares being acquired pursuant to the exercise
    of the Option less the number of shares being tendered upon the exercise and
    return to the optionee (or not require surrender of) the certificate for the
    shares being tendered upon the exercise. Payment instruments will be received
    subject to collection.
5.
    No Option shall be transferable otherwise than by will or the laws of descent
    and distribution, and an Option shall be exercisable during the Director's
    lifetime only by the Director. If a Director dies, the person or persons (including
    his estate) to whom his rights under any Option shall have passed by will
    or by laws of descent and distribution shall be entitled to exercise the Option
    for a period of one year after the death of the Director (but only to the
    extent exercisable by the Director at the time of his death).
6. If a Director's membership on the Board terminates for any reason
    other than death, an Option held on the date of termination may be exercised
    in whole or in part (but only to the extent exercisable by the Director at
    the time of such termination) at any time within 90 days after the date of
    such termination (but in no event after the term of the Option expires) and
    shall thereafter automatically terminate.
7. An Option may not be exercised for a fractional share. No Option may be
    exercised after the expiration of its term.
8. An Option shall be deemed to be exercised when (i) written notice of such
    exercise has been given to the Company in accordance with the terms of the
    Award granting the Option by the person entitled to exercise the Option and
    (ii) full payment for the shares of Stock with respect to which the Option
    is exercised has been received by the Company. Until the issuance of the stock
    certificates (as evidenced by the appropriate entry on the books of the Company
    or of a duly authorized transfer agent of the Company), no right to vote or
    receive dividends or any other rights as a stockholder shall exist with respect
    to Option shares notwithstanding the exercise of the Option. An optionee shall
    have no rights as a stockholder with respect to shares covered by such optionee's
    Award until the date of the issuance of shares to the optionee pursuant to
    such exercise. No adjustment will be made for dividends or other distributions
    or rights for which the record date is prior to the date of such issuance.
VI.
    PRORATION OF GRANT
A Director who first becomes a member of the Board after the effective date
    hereof but before January 1, 2003 shall receive, on his first Annual Grant
    Date following the date on which he became a member of the Board, an Option
    to purchase the number of shares of Stock equal to the product of 6,000 and
    a fraction, the numerator of which is the number of days during the year preceding
    such first Annual Grant Date that such Director served as a member of the
    Board and the denominator of which is 365; provided, however, that any Director
    who becomes a member of the Board during 2002 shall receive, on his first
    Annual Grant Date in 2003, an Option to purchase the number of shares of Stock
    equal to the product of 8,000 and a fraction, the numerator of which is the
    number of days during 2002 that such Director served as a member of the Board
    and the denominator of which is 365.
A Director who first becomes a member of the Board after January 1, 2003 shall
    receive, on his first Annual Grant Date following the date on which be became
    a member of the Board, an Option to purchase the number of shares of Stock
    equal to the product of 8,000 and a fraction, the numerator of which is the
    number of days during the year preceding such Initial Grant Date that such
    Director served as a member of the Board and the denominator of which is 365.
3
VII.
    RECAPITALIZATION OR REORGANIZATION
A. The existence of the Plan and the Awards granted hereunder shall not affect
    in any way the right or power of the Board or the stockholders of the Company
    to make or authorize any adjustment, recapitalization, reorganization or other
    change in the Company's capital structure or its business, any merger
    or consolidation of the Company, any issue of bonds, debentures, preferred
    or prior preference stocks ahead of or affecting Stock, the dissolution or
    liquidation of the Company or any sale or transfer of all or any part of its
    assets or business, or any other corporate act or proceeding.
B. The shares with respect to which Awards may be granted are shares of Stock
    as presently constituted, but if, and whenever, prior to the termination of
    the Plan or the expiration of an Award theretofore granted, the Company shall
    effect a subdivision or consolidation of shares of Stock or the payment of
    a stock dividend on Stock without receipt of consideration by the Company,
    the remaining shares of Stock available under the Plan and the number of shares
    of Stock with respect to which such Award may thereafter be exercised (i)
    in the event of an increase in the number of outstanding shares, shall be
    proportionately increased and the Exercise Price per share shall be proportionately
    reduced, and (ii) in the event of a reduction in the number of outstanding
    shares, shall be proportionately reduced, and the Exercise Price per share
    shall be proportionately increased.
C. Except as may otherwise be expressly provided in the Plan, the issuance
    by the Company of shares of stock of any class or securities convertible into
    shares of stock of any class, for cash, property, labor or services, upon
    direct sale, upon the exercise of rights or warrants to subscribe therefor,
    or upon conversion of shares or obligations of the Company convertible into
    such shares or other securities, and in any case whether or not for fair value,
    shall not affect, and no adjustment by reason thereof shall be made with respect
    to, the number of shares of Stock available under the Plan or subject to Awards
    theretofore granted or the Exercise Price per share of outstanding Awards.
D. If the Company effects a recapitalization or otherwise materially changes
    its capital structure (both of the foregoing are herein referred to as a "Fundamental
    Change"), then thereafter upon any exercise of an Option theretofore
    granted the optionee shall be entitled to purchase under such Option, in lieu
    of the number of shares of Stock as to which such Option shall then be exercisable,
    the number and class of shares of stock and securities to which the optionee
    would have been entitled pursuant to the terms of the Fundamental Change if,
    immediately prior to such Fundamental Change, the optionee had been the holder
    of record of the number of shares of Stock as to which such Option is then
    exercisable.
VIII.
    OPTIONEE'S AGREEMENT
If, at the time of the exercise of any Option, in the opinion of counsel for
    the Company, it is necessary or desirable, in order to comply with any then
    applicable laws or regulations relating to the sale of securities, for the
    optionee exercising the Option to agree to hold any shares issued to the optionee
    for investment and without intention to resell or distribute the same and
    for the optionee to agree to dispose of such shares only in compliance with
    such laws and regulations, the optionee will, upon the request of the Company,
    execute and deliver to the Company a further agreement to such effect.
IX.
    TERMINATION OF AUTHORITY TO GRANT AWARDS
No Awards will be made pursuant to this Plan after December 14, 2008.
X.
    AMENDMENT AND TERMINATION
The Board may from time to time and at any time alter, amend, suspend, discontinue
    or terminate this Plan and any Awards hereunder; provided, that no change
    in any Award theretofore granted may be made which would impair the rights
    of the optionee with respect to an Option under such Award, without the consent
    of such optionee.
4
XI.
    PREEMPTION BY APPLICABLE LAWS AND REGULATIONS
Anything in the Plan or any Award entered into pursuant to the Plan to the
    contrary notwithstanding, if any law, regulation or requirement of any governmental
    authority shall require either Company or the optionee to take any action
    or make any determination in connection with issuance or other distribution
    of, or payment for shares of Stock, the shares then to be issued or distributed,
    or the payment for such shares, as the case may be, shall be deferred until
    such action shall have been taken. It is the Company's intent that the Plan
    comply in all respects with rule 16-b3 (the "Rule") of the Securities
    Act of 1933, as amended (the "Act"), and any regulations promulgated
    thereunder. If any provision of the plan is later found not to be in compliance
    with the Rule, the provision shall be deemed null and void. All grants and
    exercises of stock options under the Plan shall be executed in accordance
    with the requirements of Section 16 of the Act, as amended and any regulations
    promulgated thereunder. To the extent that any of the provisions contained
    herein do not conform with Rule 16-b3 of the Act or any amendments thereto
    or any successor regulation, then the Committee may make such modifications
    so as to conform the Plan and any stock options granted thereunder to the
    Rule's requirements.
XII.
    MISCELLANEOUS
A. NO RIGHT TO CORPORATE ASSETS. Nothing contained in the Plan shall be construed
    as giving any optionee, such optionee's beneficiaries or any other person
    any equity or other interest of any kind in any assets of the Company or creating
    a trust of any kind or a fiduciary relationship of any kind between the Company
    and any such person.
B. NO RESTRICTION ON CORPORATE ACTION. Nothing contained in the Plan shall
    be construed to prevent the Company from taking any corporate action that
    is deemed by the Company to be appropriate or in its best interest, whether
    or not such action would have an adverse effect on the Plan or any Award made
    under the Plan. No optionee, beneficiary or other person shall have any claim
    against the Company as a result of any such action.
C. NON-ASSIGNABILITY. Neither an optionee nor an optionee's beneficiary
    shall have the power or right to sell, exchange, pledge, transfer, assign
    or otherwise encumber or dispose of such optionee's or beneficiary's
    interest arising under the Plan or any Award received under the Plan; nor
    shall such interest be subject to seizure for the payment of an optionee's
    or beneficiary's debts, judgments, alimony, or separate maintenance
    or be transferable by operation of law in the event of an optionee's
    or beneficiary's bankruptcy or insolvency and to the extent any such
    interest arising under the Plan or an Award received under the Plan is awarded
    to a spouse pursuant to any divorce proceeding, such interest shall be deemed
    to be terminated and forfeited notwithstanding any vesting provisions or other
    terms herein or in the agreement evidencing such Award. Notwithstanding the
    above, nothing herein shall be construed to prevent the issuance of shares
    pursuant to an order of a court of competent jurisdiction which the Committee
    in its sole discretion deems to be valid and enforceable against the Company,
    and any such issuance shall be deemed in full satisfaction of any obligation
    under the applicable Award.
D. WITHHOLDING OF TAX. To the extent that (i) the Company has a duty to withhold
    for federal or state income tax or (ii) the Company's ability to take
    a tax deduction is contingent upon such withholding, optionee shall pay the
    Company at the time of exercise (or other taxable event) such amount of money
    as the Company may be required to withhold or pay under applicable tax laws
    or regulations. If the optionee fails to do so, the Company may refuse to
    issue any shares pursuant to exercise of an Option, or may withhold from any
    other amounts payable to optionee any tax required to be withheld.
E. APPLICATION OF FUNDS. The proceeds received by the Company from the sale
    of shares pursuant to the Plan will be used for general purposes.
F. GOVERNING LAW; CONSTRUCTION. All rights and obligations under the Plan
    shall be governed by, and the Plan shall be construed in accordance with,
    the laws of the State of Delaware without regard to the principles of conflicts
    of laws. Titles and headings to Sections herein are for purposes of reference
    only, and shall in no way limit, define or otherwise affect the meaning or
    interpretation of any provisions of the Plan.
5
EXHIBIT
    5.1
Andrews
    Kurth LLP
10001
    Woodloch Forest Drive, Suite 200
The
    Woodlands, Texas 77380
March 30, 2004
Board of Directors
TETRA Technologies, Inc.
25025 I-45 North
The Woodlands, Texas 77380
Gentlemen:
We have acted as
    counsel to TETRA Technologies, Inc., a Delaware corporation (the "Company"),
    in connection with the Company's Registration Statement on Form S-8
    (the "Registration Statement") relating to the registration under
    the Securities Act of 1933, as amended, of the issuance of an additional 450,000
    shares (the "Plan Shares") of the Company's common stock,
    $0.01 par value (the "Common Stock"), pursuant to the Company's
    1998 Director Stock Option Plan, as amended and restated (the "Plan").
In connection herewith,
    we have examined copies of such statutes, regulations, corporate records and
    documents, certificates of public and corporate officials and other agreements,
    contracts, documents and such other instruments as we have deemed necessary
    as a basis for the opinion hereinafter expressed. In such examination, we
    have assumed the genuineness of all signatures, the authenticity of all documents
    submitted to us as originals and the conformity with the original documents
    of all documents submitted to us as copies. We have also relied, to the extent
    we deem such reliance proper, upon information supplied by officers and employees
    of the Company with respect to various factual matters material to our opinion.
Based upon the foregoing and subject to the limitations and exceptions set
    forth below, we are of the opinion that the Plan Shares have been duly authorized,
    and upon issuance thereof by the Company and payment therefor pursuant to
    the Plan, will be validly issued and will constitute fully paid and nonassessable
    shares of Common Stock.
This opinion is limited in all respects to the General Corporation Law of
    the State of Delaware. We express no opinion other than as to the federal
    laws of the United States of America and the Delaware General Corporation
    Law. We hereby consent to the filing of this opinion as an exhibit to the
    Registration Statement and to the reference to this firm under the heading
    "Exhibits" therein. In giving this consent we do not admit that
    we are "experts" under the Securities Act of 1933, as amended,
    or the rules and regulations of the Securities and Exchange Commission issued
    thereunder. This opinion is expressed as of the date hereof, and we disclaim
    any undertaking to advise you of any subsequent changes of the facts stated
    or assumed herein or any subsequent changes in applicable law.
Very truly yours,
/s/ Andrews Kurth LLP
EXHIBIT
    23.1
CONSENT
    OF INDEPENDENT AUDITORS
We
    consent to the incorporation by reference in the Registration Statement (Form
    S-8), pertaining to the TETRA Technologies, Inc. 1998 Director Stock Option
    Plan, as amended and restated, of our report dated February 23, 2004, with
    respect to the consolidated financial statements and schedule of TETRA Technologies,
    Inc. included in the Annual Report (Form 10-K) for the year ended December
    31, 2003.
Ernst & Young
    LLP
Houston, Texas
March 25, 2004