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<title>Form S-8</title>

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  <p style="margin:1pt 0in 2pt;"><font face="Arial, Helvetica, sans-serif" size="2"><b>As
    filed with the Securities and Exchange Commission on May 9, 2008</b></font></p>
  <p style="margin:1pt 0in 2pt;" align="right"><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>UNITED
    STATES</b></font></p>
  <p style="margin:0pt 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 1pt;"><font face="Arial, Helvetica, sans-serif"><font size="2"><strong><font size="3">FORM
    S-8</font></strong></font></font></p>
  <p style="margin:0in 0in 1pt;"><font size="3"><strong><font face="Arial, Helvetica, sans-serif">REGISTRATION
    STATEMENT UNDER</font></strong></font></p>
  <p style="margin:0in 0in 10pt;"><font size="3"><strong><font face="Arial, Helvetica, sans-serif">THE
    SECURITIES ACT OF 1933</font></strong></font></p>
  <p style="margin:0in 0in .0001pt;" align="center"><font face="Arial, Helvetica, sans-serif"><b><font size="4">TETRA
    TECHNOLOGIES, INC.</font></b></font></p>
  <p style="margin:0in 0in .0001pt;" align="center"><font face="Arial, Helvetica, sans-serif" size="2"><em>(Exact
    name of Registrant as specified in its charter)</em></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="40%">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Delaware</font></strong></div></td>
      <td width="20%">
        <div align="center"></div></td>
      <td width="40%">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">74-2148293</font></strong></div></td>
    </tr>
    <tr valign="top">
      <td width="40%">
        <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><em>(State
          or other jurisdiction of incorporation or organization)</em></font></font></div></td>
      <td width="20%">
        <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"></font></font></div></td>
      <td width="40%">
        <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><em>(I.R.S.
          Employer Identification No.)</em></font></font></div></td>
    </tr>
	<tr valign="bottom">
      <td width="40%">
        <div align="center">&nbsp;</div></td>
      <td width="20%">
        <div align="center"></div></td>
      <td width="40%">
        <div align="center"><strong></strong></div></td>
    </tr>
	<tr valign="bottom">
      <td width="40%">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">25025
          Interstate 45 North, Suite 600</font></strong></div></td>
      <td width="20%">
        <div align="center"></div></td>
      <td width="40%">
        <div align="center"><strong></strong></div></td>
    </tr>
	<tr valign="bottom">
      <td width="40%">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">The
          Woodlands, Texas</font></strong></div></td>
      <td width="20%">
        <div align="center"></div></td>
      <td width="40%">
        <div align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">77380</font></strong></div></td>
    </tr>
    <tr valign="top">
      <td width="40%">
        <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><em>(Address
          of Principal Executive Offices)</em></font></font></div></td>
      <td width="20%">
        <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"></font></font></div></td>
      <td width="40%">
        <div align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><em>(Zip
          Code) </em></font></font></div></td>
    </tr>
  </table>
  <p style="margin:0in 0in 5pt;" align="center">&nbsp;</p>

  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">TETRA
    TECHNOLOGIES, INC.</font></strong></p>
  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">AMENDED
    AND RESTATED</font></strong></p>
  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">2007
    EQUITY INCENTIVE COMPENSATION PLAN</font></strong></p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><em>(Full
    Title of the Plan)</em></font></p>
  <hr align="center" width="20%" noshade>
  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">Bass
    C. Wallace, Jr.</font></strong></p>
  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">General
    Counsel </font></strong></p>
  <p style="margin:0in 0in 1pt;" 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 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">The
    Woodlands, Texas 77380</font></strong></p>
  <p style="margin:0in 0in 10pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><em>(Name
    and address of agent for service)</em></font></p>
  <p style="margin:0in 0in 1pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">(281)
    367-1983</font></strong></p>
  <p style="margin:0in 0in 1pt;" align="center"><font size="2" face="Arial, Helvetica, sans-serif"><em>(Telephone
    number, including are code, of sgent for service)</em></font></p>
  <hr align="center" width="20%" noshade>
  <p style="margin:5pt 0in 5pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">Indicate by check
    mark whether the registrant is a large accelerated filer, an accelerated filer,
    a non-accelerated filer, or a smaller reporting company. See the definitions
    of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221;
    and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange
    Act. (Check one):</font> </p>
  <p style="margin:5pt 0in 5pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">Large
    accelerated filer [ X ] &nbsp;Accelerated filer [&nbsp;&nbsp;&nbsp; ] &nbsp;Non-accelerated filer [&nbsp;&nbsp;&nbsp; ] (Do
    not check if a smaller reporting company) &nbsp;Smaller reporting company [&nbsp;&nbsp;&nbsp; ]</font></p>
  <p style="margin:5pt 0in 10pt;" 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;border-right:solid windowtext .5pt;">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>Title
          of securities to be registered</b></font></font></p></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;border-right:solid windowtext .5pt;">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>Amount
          to be registered <font size="1">(1)</font></b></font></font></p></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;border-right:solid windowtext .5pt;">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>Proposed
          maximum offering price per share <font size="1">(2)</font></b></font></font></p></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;border-right:solid windowtext .5pt;">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>Proposed
          maximum aggregate offering price <font size="1">(2)</font></b></font></font></p></td>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt;border-top:double windowtext 1.5pt;">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b>Amount
          of registration fee</b></font></font></p></td>
    </tr>
    <tr valign="middle">
      <td width="28%" style="border:none;border-bottom:double windowtext 1.5pt;border-right:solid windowtext .5pt;">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Common
          Stock, par value $0.01 per share <font size="1">(3)</font></font></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-right:solid windowtext .5pt;"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">4,500,000
          shares </font></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-right:solid windowtext .5pt;"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">$17.52</font></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;border-right:solid windowtext .5pt;"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">$78,840,000</font></td>
      <td width="18%" style="border:none;border-bottom:double windowtext 1.5pt;"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">$3,098.42</font></td>
    </tr>
  </table>
  <p style="margin:5pt 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(1)
    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 with respect to the securities
    registered hereunder by reason of stock dividends, spin-offs, extraordinary
    dividends, stock splits, combinations of shares, recapitalizations, mergers,
    consolidations, reorganizations or similar transactions.</font></p>
  <p style="margin:0in 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(2)
    Estimated solely for the purpose of determining the amount of the registration
    fee in accordance with Rule 457(c) and (h) under the Securities Act of 1933,
    as amended and based upon the average of the high and low sales prices of
    the Registrant&#8217;s common stock on the New York Stock Exchange on May
    7, 2008.</font></p>
  <p style="margin:0in 0in 1pt;" align="left"><font size="1" face="Arial, Helvetica, sans-serif">(3)
    Includes the preferred stock purchase rights (as adjusted and as subject to
    further adjustment upon certain events) associated with the common stock.
    </font></p>
  <p style="margin:2pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">&nbsp;</font></p>
  <hr noshade>
  <p align="center" style="page-break-before:always">

  <p style="margin:0pt 0in 10pt;" align="center"><b><font size="2" face="Arial, Helvetica, sans-serif">EXPLANATORY
    NOTE</font></b></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">This
    Registration Statement on Form S 8 is filed by TETRA Technologies, Inc., a
    Delaware corporation (the &#8220;Company&#8221;) relating to 4,500,000 shares
    of its common stock, par value $0.01 per share (the &#8220;Common Stock&#8221;),
    issuable under the TETRA Technologies, Inc. Amended and Restated 2007 Equity
    Incentive Compensation Plan (the &#8220;Plan&#8221;), which Common Stock is
    in addition to the 90,000 shares of Common Stock registered on the Company&#8217;s
    Registration Statement on Form S-8 filed on May 4, 2007 (Commission File No.
    333-142637) (the &#8220;Prior Registration Statement&#8221;).</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">
    This Registration Statement relates to securities of the same class as those
    to which the Prior Registration Statement relates, and is submitted in accordance
    with General Instruction E to Form S-8 regarding the Registration of Additional
    Securities. Pursuant to Instruction E of Form S-8, the contents of the Prior
    Registration Statement are incorporated herein by reference and made part
    of this Registration Statement, except as supplemented by the information
    set forth below. </font></p>
  <p style="margin:0pt 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">PART
    II</font></strong></p>
  <p style="margin:0pt 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">INFORMATION
    REQUIRED IN THE REGISTRATION STATEMENT</font></strong></p>
  <p align="left" style="margin:0pt 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif"><strong>Item
    3. INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE</strong></font></p>
  <p align="left" style="margin:0pt 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">The
    following documents, which have been previously filed by the Company with
    the Securities and Exchange Commission (the &#8220;SEC&#8221;), are incorporated
    herein by reference into this Registration Statement:</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"> (a) The Company&#8217;s
    Annual Report on Form 10-K for the fiscal year ended December 31, 2007 as
    filed with the SEC on February 29, 2008 (File No. 001-13455);</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"> (b) The Company&#8217;s
    Current Reports on Form 8-K as filed by the Company with the SEC on January
    14, 2008, February 6, 2008, February 22, 2008, April 2, 2008, April 7, 2008
    and May 5, 2008 (File No. 001-13455);</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"> (c) The description
    of the Company&#8217;s common stock, par value $0.01 per share, contained
    in the Registration Statement on Form 8-A filed with the SEC on October 7,
    1997 (File No. 001-13455), including any amendments and reports filed for
    the purpose of updating such description; and</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"> (d) The description
    of the Company&#8217;s Series One Junior Participating Preferred Stock contained
    in the Company&#8217;s Registration Statement on Form 8-A (File No. 001-13455)
    filed with the SEC on October 28, 1998, including any subsequent amendments
    or reports filed for the purpose of updating such description.</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"> All documents filed
    by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities
    Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), subsequent
    to the date of this Registration Statement and prior to the filing of a post-effective
    amendment which indicates that all securities offered hereby have been sold
    or which deregisters all securities remaining unsold, shall be deemed to be
    incorporated by reference herein and to be a part hereof from the date of
    the filing of such documents.</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:0.5in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif"> Any statement contained
    in a document incorporated or deemed incorporated by reference in this Registration
    Statement shall be deemed to be modified or superseded for purposes of this
    Registration Statement to the extent that a statement contained in this Registration
    Statement or in any other subsequently filed document which also is incorporated
    or deemed to be incorporated by reference in this Registration Statement modifies
    or supersedes such statement. Any such statement so modified or superseded
    shall not be deemed, except as modified or superseded, to constitute a part
    of this Registration Statement.
    </font></p>
  <p style="margin:2pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-2-</font></p>
  <hr noshade>
  <p align="center" style="page-break-before:always">
<p align="left" style="margin:0pt 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif">
    <strong>Item 8. EXHIBITS</strong></font></p>
  <p align="left" style="margin:0pt 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    The following exhibits have been filed as part of this Registration Statement
    and are specifically incorporated by reference:</font></p>
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt">
        <div align="center"><font size="2" face="Arial, Helvetica, sans-serif">Exhibit
          No.</font></div></td>
      <td width="2%"> <div align="center"><font size="2" face="Arial, Helvetica, sans-serif"></font></div></td>
      <td width="80%" style="border:none;border-bottom:solid windowtext .5pt">
        <div align="center"><font size="2" face="Arial, Helvetica, sans-serif">Description</font></div></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Restated
          Certificate of Incorporation of TETRA Technologies, Inc. (incorporated
          by reference to Exhibit 3.1 to the Company's Registration Statement
          on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.2</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1 to the Company's Registration
          Statement on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.3</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1(ii) to the Company's
          Annual Report on Form 10-K for the year ended December 31, 2003 filed
          on March 15, 2004 (SEC File No. 001-13455)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.4</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 4.4 to the Company's Registration
          Statement on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.5</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc (incorporated by reference to Exhibit 4.5 to the Company&#8217;s
          Registration Statement on Form S-8 filed on May 4, 2006 (SEC File No.
          333-133790)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.6</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Amended
          and Restated Bylaws of TETRA Technologies, Inc. (incorporated by reference
          to Exhibit 4.6 to the Company&#8217;s Registration Statement on Form
          S-8 filed on May 4, 2006 (SEC File No. 333-133790)). </font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.7</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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 (incorporated by reference to Exhibit
          2 to the Company&#8217;s Registration Statement on Form 8-A filed on
          October 28, 1998 (SEC File No. 001-13455)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.8</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Rights
          Agreement, dated as of October 26, 1998, between the Company and Harris
          Trust and Savings Bank (predecessor to Computershare Investor Services
          LLC), as Rights Agent (incorporated by reference to Exhibit 1 to the
          Company&#8217;s Registration Statement on Form 8-A filed on October
          28, 1998 (SEC File No. 001-13455)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.9</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Specimen
          Common Stock Certificate of the Company (incorporated by reference to
          Exhibit 4.1 to the Company&#8217;s Registration Statement on Form S-1
          filed on February 23, 1990 (SEC File No. 33-33586)).</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.10</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Certificate of Designation for the Preferred Stock (incorporated
          by reference to Exhibit 4.9 to the Company&#8217;s Registration Statement
          on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.11</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Specimen
          Preferred Stock Certificate of the Company (incorporated by reference
          to Exhibit 4.10 to the Company&#8217;s Registration Statement on Form
          S-4 filed on May 25, 2004 (SEC File No. 333-115859)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.12</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.13</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Employee Incentive Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.14</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Employee Nonqualified Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.15</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Employee Restricted Stock Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.</font></td>
    </tr>
  </table>
  <p style="margin:10pt 0in 10pt;text-indent:0.5in;" align="left">&nbsp;</p>
  <p style="margin:2pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-3-</font></p>
  <hr noshade>
  <p align="center" style="page-break-before:always">
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.16</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Non-Employee Director Restricted Stock Agreement under the TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan. </font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*5.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.2</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.3</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Consent
          of Ryder Scott Company, L.P.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.4</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Consent
          of DeGolyer and MacNaughton</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*24.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Powers
          of Attorney (included on signature page).</font></td>
    </tr>
  </table>

  <p style="margin:2pt 0in 1pt;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">+
    Incorporated by reference.</font></p>
  <p style="margin:0pt 0in 10pt;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">*
    Filed herewith.</font></p>

  <p style="margin:10pt 0in 10pt;text-indent:0.5in;" align="left">&nbsp;</p>

  <p style="margin:2pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-4-</font></p>
  <hr noshade>
  <p align="left" style="page-break-before:always">

  <p style="margin:10pt 0in 10pt;" align="center"><strong><font size="2" face="Arial, Helvetica, sans-serif">SIGNATURES</font></strong></p>
  <p style="margin:10pt 0in 10pt;text-indent:.5in;" align="justify"><font size="2" face="Arial, Helvetica, sans-serif"><strong>The
    Registrant.</strong> Pursuant to the requirements of the Securities Act of
    1933, 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 City of The Woodlands, State of Texas, on
    this 9th day of May, 2008.</font></p>
  <p style="margin:10pt 0in 10pt;text-indent:4in;" align="left"><strong><font size="2" face="Arial, Helvetica, sans-serif">TETRA
    TECHNOLOGIES, INC.</font></strong></p>
  <p style="margin:0pt 0in 1pt;text-indent:4in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">By:
    <u>/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">Name:
    Geoffrey M. Hertel</font></p>
  <p style="margin:0pt 0in 10pt;text-indent:4in;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">Title:
    President &amp; Chief Executive Officer</font></p>
  <p style="margin:0pt 0in 10pt;" align="left">&nbsp;</p>
  <p style="margin:0pt 0in 10pt;" align="left">&nbsp;</p>
  <p style="margin:2pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-5-</font></p>
  <hr noshade>
  <p align="center" style="page-break-before:always">
  <p align="center" style="margin:10pt 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif"><strong>POWER
    OF ATTORNEY</strong></font></p>
  <p align="left" style="margin:10pt 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">KNOW
    ALL MEN BY THESE PRESENTS, that each of the undersigned officers and directors
    of the registrant hereby constitutes and appoints Geoffrey M. Hertel and Bass
    C. Wallace, Jr., and each of them severally, his lawful attorney-in-fact and
    agent, with full power of substitution and resubstitution, 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 and 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
    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 his substitute or substitutes, may lawfully do or cause to be
    done.</font></p>

  <p align="left" style="margin:10pt 0in 10pt;text-indent:0.5in;"><font size="2" face="Arial, Helvetica, sans-serif">
    Pursuant to the requirements of the Securities Act of 1933, this registration
    statement has been signed by the following persons in the capacities and on
    the dates stated.</font></p>
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2">Name
          and Signature</font></font></p></td>
      <td width="2%"><p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b></b></font></font></p></td>
      <td width="50%" style="border:none;border-bottom:solid windowtext .5pt">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2">Title</font></font></p></td>
      <td width="2%"><p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2"><b></b></font></font></p></td>
      <td width="20%" style="border:none;border-bottom:solid windowtext .5pt">
        <p align="center"><font face="Arial, Helvetica, sans-serif"><font size="2">Date</font></font></p></td>
    </tr>
    <tr>
      <td width="26%">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Geoffrey
          M. Hertel</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">President,
          Chief Executive Officer and Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Geoffrey
          M. Hertel</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">(Principal
          Executive Officer)</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Joseph
          M. Abell, III</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Senior
          Vice President and Chief Financial Officer</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Joseph
          M. Abell, III</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">(Principal
          Financial Officer)</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Ben
          C. Chambers</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Vice
          President &#150; Accounting</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Ben
          C. Chambers</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">(Principal
          Accounting Officer)</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Ralph
          S. Cunningham</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Chairman
          of the Board of Directors and Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Ralph
          S. Cunningham</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Paul
          D. Coombs</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Paul
          D. Coombs</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">/s/Tom
          H. Delimitros</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Tom
          H. Delimitros</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Allen
          T. McInnes</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Allen
          T. McInnes</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Kenneth
          P. Mitchell</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Kenneth
          P. Mitchell</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
	<tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/William
          D. Sullivan</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">William
          D. Sullivan</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
    <tr>
      <td width="26%" style="border:none;border-bottom:solid windowtext .5pt">
        <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">/s/Kenneth
          E. White, Jr.</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Director</font></td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">May
          9, 2008</font></td>
    </tr>
    <tr>
      <td width="26%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">Kenneth
          E. White, Jr.</font></td>
      <td width="2%">&nbsp;</td>
      <td width="50%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
      <td width="2%">&nbsp;</td>
      <td width="20%"> <p align="center" style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt">&nbsp;</td>
    </tr>
  </table>
  <p style="margin:5pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-6-</font></p>
  <hr noshade>
  <p align="center" style="page-break-before:always">
  <p align="center" style="margin:10pt 0in 10pt;"><font size="2" face="Arial, Helvetica, sans-serif"><strong>EXHIBIT
    INDEX </strong></font></p>
	<table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="18%" style="border:none;border-bottom:solid windowtext .5pt">
        <div align="center"><font size="2" face="Arial, Helvetica, sans-serif">Exhibit
          No.</font></div></td>
      <td width="2%"> <div align="center"><font size="2" face="Arial, Helvetica, sans-serif"></font></div></td>
      <td width="80%" style="border:none;border-bottom:solid windowtext .5pt">
        <div align="center"><font size="2" face="Arial, Helvetica, sans-serif">Description</font></div></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Restated
          Certificate of Incorporation of TETRA Technologies, Inc. (incorporated
          by reference to Exhibit 3.1 to the Company's Registration Statement
          on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.2</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1 to the Company's Registration
          Statement on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.3</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1(ii) to the Company's
          Annual Report on Form 10-K for the year ended December 31, 2003 filed
          on March 15, 2004 (SEC File No. 001-13455)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.4</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 4.4 to the Company's Registration
          Statement on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.5</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc (incorporated by reference to Exhibit 4.5 to the Company&#8217;s
          Registration Statement on Form S-8 filed on May 4, 2006 (SEC File No.
          333-133790)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.6</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Amended
          and Restated Bylaws of TETRA Technologies, Inc. (incorporated by reference
          to Exhibit 4.6 to the Company&#8217;s Registration Statement on Form
          S-8 filed on May 4, 2006 (SEC File No. 333-133790)). </font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.7</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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 (incorporated by reference to Exhibit
          2 to the Company&#8217;s Registration Statement on Form 8-A filed on
          October 28, 1998 (SEC File No. 001-13455)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.8</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Rights
          Agreement, dated as of October 26, 1998, between the Company and Harris
          Trust and Savings Bank (predecessor to Computershare Investor Services
          LLC), as Rights Agent (incorporated by reference to Exhibit 1 to the
          Company&#8217;s Registration Statement on Form 8-A filed on October
          28, 1998 (SEC File No. 001-13455)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.9</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Specimen
          Common Stock Certificate of the Company (incorporated by reference to
          Exhibit 4.1 to the Company&#8217;s Registration Statement on Form S-1
          filed on February 23, 1990 (SEC File No. 33-33586)).</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.10</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Certificate of Designation for the Preferred Stock (incorporated
          by reference to Exhibit 4.9 to the Company&#8217;s Registration Statement
          on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">+4.11</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Specimen
          Preferred Stock Certificate of the Company (incorporated by reference
          to Exhibit 4.10 to the Company&#8217;s Registration Statement on Form
          S-4 filed on May 25, 2004 (SEC File No. 333-115859)).</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.12</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.13</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Employee Incentive Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.14</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Employee Nonqualified Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.</font></td>
    </tr>
	<tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.15</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Employee Restricted Stock Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.</font></td>
    </tr>
	 <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*4.16</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Form
          of Non-Employee Director Restricted Stock Agreement under the TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan. </font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*5.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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>
  </table>
<p style="margin:5pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-7-</font></p>
  <hr noshade>
  <p align="center" style="page-break-before:always">
  <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.2</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <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="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.3</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Consent
          of Ryder Scott Company, L.P.</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*23.4</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Consent
          of DeGolyer and MacNaughton</font></td>
    </tr>
    <tr>
      <td width="18%" valign="top"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font face="Arial, Helvetica, sans-serif" size="2">*24.1</font></td>
      <td width="2%">&nbsp;</td>
      <td width="80%"> <p style="margin:0in 0in .0001pt 10pt;text-indent:-10.0pt"><font size="2" face="Arial, Helvetica, sans-serif">Powers
          of Attorney (included on signature page).</font></td>
    </tr>
  </table>

  <p style="margin:2pt 0in 1pt;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">+
    Incorporated by reference.</font></p>
  <p style="margin:0pt 0in 10pt;" align="left"><font size="2" face="Arial, Helvetica, sans-serif">*
    Filed herewith.</font></p>

  <p style="margin:10pt 0in 10pt;text-indent:0.5in;" align="left">&nbsp;</p>

  <p style="margin:2pt 0in 2pt;" align="center"><font size="1" face="Arial, Helvetica, sans-serif">-8-</font></p>
  <hr noshade>
  <p style="margin:0pt 0in 10pt;" align="right">&nbsp;</p>
</div>
  </body>
</html>
[{"type": "S-8", "sequence": "1", "filename": "ttis8amend2007equityplan.htm", "description": "FORM S-8", "secsgml_size_bytes": 64736}]
{"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": "333-150783", "film-number": "08817554"}, "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"}}
Form S-8
As
    filed with the Securities and Exchange Commission on May 9, 2008
Registration
    No. 333-___
UNITED
    STATES
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
          of Principal Executive Offices)
(Zip
          Code)
TETRA
    TECHNOLOGIES, INC.
AMENDED
    AND RESTATED
2007
    EQUITY INCENTIVE COMPENSATION PLAN
(Full
    Title of the Plan)
Bass
    C. Wallace, Jr.
General
    Counsel
25025
    Interstate 45 North, Suite 600
The
    Woodlands, Texas 77380
(Name
    and address of agent for service)
(281)
    367-1983
(Telephone
    number, including are code, of sgent for service)
Indicate by check
    mark whether the registrant is a large accelerated filer, an accelerated filer,
    a non-accelerated filer, or a smaller reporting company. See the definitions
    of "large accelerated filer," "accelerated filer"
    and "smaller reporting company" in Rule 12b-2 of the Exchange
    Act. (Check one):
Large
    accelerated filer [ X ]  Accelerated filer [    ]  Non-accelerated filer [    ] (Do
    not check if a smaller reporting company)  Smaller reporting company [    ]
CALCULATION
    OF REGISTRATION FEE
Title
          of securities to be registered
Amount
          to be registered
(1)
Proposed
          maximum offering price per share
(2)
Proposed
          maximum aggregate offering price
(2)
Amount
          of registration fee
Common
          Stock, par value $0.01 per share
(3)
4,500,000
          shares
$17.52
$78,840,000
$3,098.42
(1)
    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 with respect to the securities
    registered hereunder by reason of stock dividends, spin-offs, extraordinary
    dividends, stock splits, combinations of shares, recapitalizations, mergers,
    consolidations, reorganizations or similar transactions.
(2)
    Estimated solely for the purpose of determining the amount of the registration
    fee in accordance with Rule 457(c) and (h) under the Securities Act of 1933,
    as amended and based upon the average of the high and low sales prices of
    the Registrant's common stock on the New York Stock Exchange on May
    7, 2008.
(3)
    Includes the preferred stock purchase rights (as adjusted and as subject to
    further adjustment upon certain events) associated with the common stock.
EXPLANATORY
    NOTE
This
    Registration Statement on Form S 8 is filed by TETRA Technologies, Inc., a
    Delaware corporation (the "Company") relating to 4,500,000 shares
    of its common stock, par value $0.01 per share (the "Common Stock"),
    issuable under the TETRA Technologies, Inc. Amended and Restated 2007 Equity
    Incentive Compensation Plan (the "Plan"), which Common Stock is
    in addition to the 90,000 shares of Common Stock registered on the Company's
    Registration Statement on Form S-8 filed on May 4, 2007 (Commission File No.
    333-142637) (the "Prior Registration Statement").
This Registration Statement relates to securities of the same class as those
    to which the Prior Registration Statement relates, and is submitted in accordance
    with General Instruction E to Form S-8 regarding the Registration of Additional
    Securities. Pursuant to Instruction E of Form S-8, the contents of the Prior
    Registration Statement are incorporated herein by reference and made part
    of this Registration Statement, except as supplemented by the information
    set forth below.
PART
    II
INFORMATION
    REQUIRED IN THE REGISTRATION STATEMENT
Item
    3. INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
The
    following documents, which have been previously filed by the Company with
    the Securities and Exchange Commission (the "SEC"), are incorporated
    herein by reference into this Registration Statement:
(a) The Company's
    Annual Report on Form 10-K for the fiscal year ended December 31, 2007 as
    filed with the SEC on February 29, 2008 (File No. 001-13455);
(b) The Company's
    Current Reports on Form 8-K as filed by the Company with the SEC on January
    14, 2008, February 6, 2008, February 22, 2008, April 2, 2008, April 7, 2008
    and May 5, 2008 (File No. 001-13455);
(c) The description
    of the Company's common stock, par value $0.01 per share, contained
    in the Registration Statement on Form 8-A filed with the SEC on October 7,
    1997 (File No. 001-13455), including any amendments and reports filed for
    the purpose of updating such description; and
(d) The description
    of the Company's Series One Junior Participating Preferred Stock contained
    in the Company's Registration Statement on Form 8-A (File No. 001-13455)
    filed with the SEC on October 28, 1998, including any subsequent amendments
    or reports filed for the purpose of updating such description.
All documents filed
    by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities
    Exchange Act of 1934, as amended (the "Exchange Act"), subsequent
    to the date of this Registration Statement and prior to the filing of a post-effective
    amendment which indicates that all securities offered hereby have been sold
    or which deregisters all securities remaining unsold, shall be deemed to be
    incorporated by reference herein and to be a part hereof from the date of
    the filing of such documents.
Any statement contained
    in a document incorporated or deemed incorporated by reference in this Registration
    Statement shall be deemed to be modified or superseded for purposes of this
    Registration Statement to the extent that a statement contained in this Registration
    Statement or in any other subsequently filed document which also is incorporated
    or deemed to be incorporated by reference in this Registration Statement modifies
    or supersedes such statement. Any such statement so modified or superseded
    shall not be deemed, except as modified or superseded, to constitute a part
    of this Registration Statement.
-2-
Item 8. EXHIBITS
The following exhibits have been filed as part of this Registration Statement
    and are specifically incorporated by reference:
Exhibit
          No.
Description
+4.1
Restated
          Certificate of Incorporation of TETRA Technologies, Inc. (incorporated
          by reference to Exhibit 3.1 to the Company's Registration Statement
          on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).
+4.2
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1 to the Company's Registration
          Statement on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).
+4.3
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1(ii) to the Company's
          Annual Report on Form 10-K for the year ended December 31, 2003 filed
          on March 15, 2004 (SEC File No. 001-13455)).
+4.4
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 4.4 to the Company's Registration
          Statement on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).
+4.5
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc (incorporated by reference to Exhibit 4.5 to the Company's
          Registration Statement on Form S-8 filed on May 4, 2006 (SEC File No.
          333-133790)).
+4.6
Amended
          and Restated Bylaws of TETRA Technologies, Inc. (incorporated by reference
          to Exhibit 4.6 to the Company's Registration Statement on Form
          S-8 filed on May 4, 2006 (SEC File No. 333-133790)).
+4.7
Certificate
          of Designation of Series One Junior Participating Preferred Stock of
          the Company, dated October 27, 1998 (incorporated by reference to Exhibit
          2 to the Company's Registration Statement on Form 8-A filed on
          October 28, 1998 (SEC File No. 001-13455)).
+4.8
Rights
          Agreement, dated as of October 26, 1998, between the Company and Harris
          Trust and Savings Bank (predecessor to Computershare Investor Services
          LLC), as Rights Agent (incorporated by reference to Exhibit 1 to the
          Company's Registration Statement on Form 8-A filed on October
          28, 1998 (SEC File No. 001-13455)).
+4.9
Specimen
          Common Stock Certificate of the Company (incorporated by reference to
          Exhibit 4.1 to the Company's Registration Statement on Form S-1
          filed on February 23, 1990 (SEC File No. 33-33586)).
+4.10
Form
          of Certificate of Designation for the Preferred Stock (incorporated
          by reference to Exhibit 4.9 to the Company's Registration Statement
          on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).
+4.11
Specimen
          Preferred Stock Certificate of the Company (incorporated by reference
          to Exhibit 4.10 to the Company's Registration Statement on Form
          S-4 filed on May 25, 2004 (SEC File No. 333-115859)).
*4.12
TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan.
*4.13
Form
          of Employee Incentive Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.
*4.14
Form
          of Employee Nonqualified Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.
*4.15
Form
          of Employee Restricted Stock Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.
-3-
*4.16
Form
          of Non-Employee Director Restricted Stock Agreement under the TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan.
*5.1
Opinion
          of Andrews Kurth LLP.
*23.1
Consent
          of Andrews Kurth LLP (included in Exhibit 5.1).
*23.2
Consent
          of Ernst & Young LLP.
*23.3
Consent
          of Ryder Scott Company, L.P.
*23.4
Consent
          of DeGolyer and MacNaughton
*24.1
Powers
          of Attorney (included on signature page).
+
    Incorporated by reference.
*
    Filed herewith.
-4-
SIGNATURES
The
    Registrant.
Pursuant to the requirements of the Securities Act of
    1933, 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 City of The Woodlands, State of Texas, on
    this 9th day of May, 2008.
TETRA
    TECHNOLOGIES, INC.
By:
/s/Geoffrey M. Hertel
Name:
    Geoffrey M. Hertel
Title:
    President & Chief Executive Officer
-5-
POWER
    OF ATTORNEY
KNOW
    ALL MEN BY THESE PRESENTS, that each of the undersigned officers and directors
    of the registrant hereby constitutes and appoints Geoffrey M. Hertel and Bass
    C. Wallace, Jr., and each of them severally, his lawful attorney-in-fact and
    agent, with full power of substitution and resubstitution, 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 and 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
    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 his substitute or substitutes, may lawfully do or cause to be
    done.
Pursuant to the requirements of the Securities Act of 1933, this registration
    statement has been signed by the following persons in the capacities and on
    the dates stated.
Name
          and Signature
Title
Date
/s/Geoffrey
          M. Hertel
President,
          Chief Executive Officer and Director
May
          9, 2008
Geoffrey
          M. Hertel
(Principal
          Executive Officer)
/s/Joseph
          M. Abell, III
Senior
          Vice President and Chief Financial Officer
May
          9, 2008
Joseph
          M. Abell, III
(Principal
          Financial Officer)
/s/Ben
          C. Chambers
Vice
          President – Accounting
May
          9, 2008
Ben
          C. Chambers
(Principal
          Accounting Officer)
/s/Ralph
          S. Cunningham
Chairman
          of the Board of Directors and Director
May
          9, 2008
Ralph
          S. Cunningham
/s/Paul
          D. Coombs
Director
May
          9, 2008
Paul
          D. Coombs
/s/Tom
          H. Delimitros
Director
May
          9, 2008
Tom
          H. Delimitros
/s/Allen
          T. McInnes
Director
May
          9, 2008
Allen
          T. McInnes
/s/Kenneth
          P. Mitchell
Director
May
          9, 2008
Kenneth
          P. Mitchell
/s/William
          D. Sullivan
Director
May
          9, 2008
William
          D. Sullivan
/s/Kenneth
          E. White, Jr.
Director
May
          9, 2008
Kenneth
          E. White, Jr.
-6-
EXHIBIT
    INDEX
Exhibit
          No.
Description
+4.1
Restated
          Certificate of Incorporation of TETRA Technologies, Inc. (incorporated
          by reference to Exhibit 3.1 to the Company's Registration Statement
          on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).
+4.2
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1 to the Company's Registration
          Statement on Form S-4 filed on December 27, 1995 (SEC File No. 33-80881)).
+4.3
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 3.1(ii) to the Company's
          Annual Report on Form 10-K for the year ended December 31, 2003 filed
          on March 15, 2004 (SEC File No. 001-13455)).
+4.4
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc. (incorporated by reference to Exhibit 4.4 to the Company's Registration
          Statement on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).
+4.5
Certificate
          of Amendment of Restated Certificate of Incorporation of TETRA Technologies,
          Inc (incorporated by reference to Exhibit 4.5 to the Company's
          Registration Statement on Form S-8 filed on May 4, 2006 (SEC File No.
          333-133790)).
+4.6
Amended
          and Restated Bylaws of TETRA Technologies, Inc. (incorporated by reference
          to Exhibit 4.6 to the Company's Registration Statement on Form
          S-8 filed on May 4, 2006 (SEC File No. 333-133790)).
+4.7
Certificate
          of Designation of Series One Junior Participating Preferred Stock of
          the Company, dated October 27, 1998 (incorporated by reference to Exhibit
          2 to the Company's Registration Statement on Form 8-A filed on
          October 28, 1998 (SEC File No. 001-13455)).
+4.8
Rights
          Agreement, dated as of October 26, 1998, between the Company and Harris
          Trust and Savings Bank (predecessor to Computershare Investor Services
          LLC), as Rights Agent (incorporated by reference to Exhibit 1 to the
          Company's Registration Statement on Form 8-A filed on October
          28, 1998 (SEC File No. 001-13455)).
+4.9
Specimen
          Common Stock Certificate of the Company (incorporated by reference to
          Exhibit 4.1 to the Company's Registration Statement on Form S-1
          filed on February 23, 1990 (SEC File No. 33-33586)).
+4.10
Form
          of Certificate of Designation for the Preferred Stock (incorporated
          by reference to Exhibit 4.9 to the Company's Registration Statement
          on Form S-4 filed on May 25, 2004 (SEC File No. 333-115859)).
+4.11
Specimen
          Preferred Stock Certificate of the Company (incorporated by reference
          to Exhibit 4.10 to the Company's Registration Statement on Form
          S-4 filed on May 25, 2004 (SEC File No. 333-115859)).
*4.12
TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan.
*4.13
Form
          of Employee Incentive Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.
*4.14
Form
          of Employee Nonqualified Stock Option Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.
*4.15
Form
          of Employee Restricted Stock Agreement under the TETRA Technologies,
          Inc. Amended and Restated 2007 Equity Incentive Compensation Plan.
*4.16
Form
          of Non-Employee Director Restricted Stock Agreement under the TETRA
          Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation
          Plan.
*5.1
Opinion
          of Andrews Kurth LLP.
-7-
*23.1
Consent
          of Andrews Kurth LLP (included in Exhibit 5.1).
*23.2
Consent
          of Ernst & Young LLP.
*23.3
Consent
          of Ryder Scott Company, L.P.
*23.4
Consent
          of DeGolyer and MacNaughton
*24.1
Powers
          of Attorney (included on signature page).
+
    Incorporated by reference.
*
    Filed herewith.
-8-