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<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="center" style="font-size: 10pt; margin-top: 0pt"><b></b> </div> <div align="left"> </div> <div align="center" style="font-size: 10pt"><b></b></div> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 1 — Basis of Presentation and Significant Accounting Policies</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The accompanying unaudited condensed consolidated financial statements of Newpark Resources, Inc. and our wholly-owned subsidiaries, which we refer to as “we,” “our” or “us,” have been prepared in accordance with Rule 10-01 of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission (“SEC”), and do not include all information and footnotes required by the accounting principles generally accepted in the United States (“U.S. GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2010. Our fiscal year end is December 31, our second quarter represents the three month period ended June 30 and our first half represents the six month period ending June 30. The results of operations for the second quarter and first half of 2011 are not necessarily indicative of the results to be expected for the entire year. Unless otherwise stated, all currency amounts are stated in U.S. dollars. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary to present fairly our financial position as of June 30, 2011, the results of our operations for the second quarter and first half of 2011 and 2010, and our cash flows for the first half of 2011 and 2010. All adjustments are of a normal recurring nature. Our balance sheet at December 31, 2010 is derived from the audited consolidated financial statements at that date. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. For further information, see Note 1 in our Annual Report on Form 10-K for the year ended December 31, 2010. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b><i>New Accounting Standards</i></b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In October 2009, the Financial Accounting Standards Board (“FASB“) issued additional guidance on multiple-deliverable revenue arrangements. The guidance provides amendments to the criteria for separating consideration in multiple-deliverable arrangements. It replaces the term “fair value” in the revenue allocation guidance with “selling price” to clarify that the allocation of revenue is based on entity-specific assumptions rather than assumptions of a marketplace participant, and they establish a selling price hierarchy for determining the selling price of a deliverable. The amendments eliminate the residual method of allocation and require that arrangement consideration be allocated at the inception of the arrangement to all deliverables using the relative selling price method, and they significantly expand the required disclosures related to multiple-deliverable revenue arrangements. The amendments were effective prospectively for revenue arrangements entered into or materially modified in fiscal years beginning after June 15, 2010. The impact of this additional guidance has not had a material impact on our consolidated financial statements. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In December 2010, the FASB issued updated accounting guidance related to the calculation of the carrying amount of a reporting unit when performing the first step of a goodwill impairment test. Specifically, this update requires an entity to use an equity premise when performing the first step of a goodwill impairment test and if a reporting unit has a zero or negative carrying amount, the entity must assess and consider qualitative factors and whether it is more likely than not that a goodwill impairment exists. The new accounting guidance is effective for impairment tests performed during entities’ fiscal years (and interim periods within those years) that begin after December 15, 2010. The impact of this updated guidance has not had a material impact on our consolidated financial statements. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In December 2010, the FASB issued updated accounting guidance to clarify that pro forma disclosures should be presented as if a business combination occurred at the beginning of the prior annual period for purposes of preparing both the current reporting period and the prior reporting period pro forma financial information. These disclosures should be accompanied by a narrative description about the nature and amount of material, nonrecurring pro forma adjustments. The new accounting guidance is effective for business combinations consummated in periods beginning after December 15, 2010, and should be applied prospectively as of the date of adoption. The impact of this guidance has not had a material impact on our consolidated financial statements. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In June 2011, the FASB issued updated guidance, which revises the manner in which entities present comprehensive income in their financial statements. The new guidance removes the presentation options and requires entities to report components of comprehensive income in either (1) a continuous statement of comprehensive income or (2) two separate but consecutive statements. The guidance does not change the items that must be reported in other comprehensive income. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The Company’s current practice for presenting comprehensive income is consistent with the updated guidance. </div> </div>

<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 2 — Earnings per Share</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The following table presents the reconciliation of the numerator and denominator for calculating earnings per share: </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="44%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>Second Quarter</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>First Half</b></td> <td> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td nowrap="nowrap" align="left" style="border-bottom: 1px solid #000000">(In thousands, except per share data)</td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2011</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2010</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2011</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2010</b></td> <td> </td> </tr>   <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px"><b>Basic EPS:</b> </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Net income </div></td> <td> </td> <td align="left">$</td> <td align="right">19,280</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">10,840</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">35,134</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">18,622</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Weighted average number of common shares outstanding </div></td> <td> </td> <td> </td> <td align="right">89,791</td> <td> </td> <td> </td> <td> </td> <td align="right">88,818</td> <td> </td> <td> </td> <td> </td> <td align="right">89,707</td> <td> </td> <td> </td> <td> </td> <td align="right">88,737</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Basic income per common share </div></td> <td> </td> <td align="left">$</td> <td align="right">0.21</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">0.12</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">0.39</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">0.21</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px"><b>Diluted EPS:</b> </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Net income </div></td> <td> </td> <td align="left">$</td> <td align="right">19,280</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">10,840</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">35,134</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">18,622</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Assumed conversion of Senior Notes </div></td> <td> </td> <td> </td> <td align="right">1,241</td> <td> </td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> <td> </td> <td> </td> <td align="right">2,438</td> <td> </td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Adjusted net income </div></td> <td> </td> <td align="left">$</td> <td align="right">20,521</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">10,840</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">37,572</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">18,622</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Weighted average number of common shares outstanding-basic </div></td> <td> </td> <td> </td> <td align="right">89,791</td> <td> </td> <td> </td> <td> </td> <td align="right">88,818</td> <td> </td> <td> </td> <td> </td> <td align="right">89,707</td> <td> </td> <td> </td> <td> </td> <td align="right">88,737</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Add: Dilutive effect of stock options and restricted stock awards </div></td> <td> </td> <td> </td> <td align="right">1,061</td> <td> </td> <td> </td> <td> </td> <td align="right">574</td> <td> </td> <td> </td> <td> </td> <td align="right">739</td> <td> </td> <td> </td> <td> </td> <td align="right">342</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:45px; text-indent:-15px">Dilutive effect of Senior Notes </div></td> <td> </td> <td> </td> <td align="right">15,682</td> <td> </td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> <td> </td> <td> </td> <td align="right">15,682</td> <td> </td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Diluted weighted average number of common shares outstanding </div></td> <td> </td> <td> </td> <td align="right">106,534</td> <td> </td> <td> </td> <td> </td> <td align="right">89,392</td> <td> </td> <td> </td> <td> </td> <td align="right">106,128</td> <td> </td> <td> </td> <td> </td> <td align="right">89,079</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Diluted income per common share </div></td> <td> </td> <td align="left">$</td> <td align="right">0.19</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">0.12</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">0.35</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">0.21</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Stock options and warrants excluded from calculation of diluted earnings per share because anti-dilutive for the period </div></td> <td> </td> <td> </td> <td align="right">2,536</td> <td> </td> <td> </td> <td> </td> <td align="right">3,952</td> <td> </td> <td> </td> <td> </td> <td align="right">3,731</td> <td> </td> <td> </td> <td> </td> <td align="right">4,641</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr>  </table> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Weighted average dilutive stock options and restricted stock outstanding totaled approximately 4.2 million and 3.2 million shares, for the second quarter of 2011 and 2010, respectively, and 3.2 million and 2.6 million shares for the first half of 2011 and 2010, respectively. The resulting net effect of stock options and restricted stock were used in calculating diluted earnings per share for the period. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In June 2000, we completed the sale of 120,000 shares of Series B Convertible Preferred Stock, $0.01 par value per share (the “Series B Preferred Stock”), and a warrant (the “Series B Warrant”) to purchase up to 1,900,000 shares of our common stock at an exercise price of $10.075 per share, subject to anti-dilution adjustments. As of June 30, 2011, the Series B Warrant, as adjusted for anti-dilution provisions, remains outstanding and provides for the right to purchase up to approximately 2.1 million shares of our common stock at an exercise price of $8.97, and expires in February 2012. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> </div>

<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 3 — Stock-Based Compensation</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">During the second quarter of 2011, the Compensation Committee of our Board of Directors approved equity-based compensation to executive officers and other key employees. These awards included a grant of 484,586 time-vesting shares of stock, which vest equally over a three-year period. The fair value on the date of grant for these awards was $9.13 per share. Non-employee directors received shares of restricted stock totaling 68,455 shares, which will vest in full on the first anniversary of the grant date. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Additionally, 725,643 stock options were granted to executive officers and other key employees at an exercise price of $9.13, which provide for equal vesting over a three-year period with a term of ten years. The estimated fair value of the stock options on the grant date using the Black-Scholes option-pricing model was $5.00. The assumptions used in the Black-Scholes model included a risk free interest rate of 1.59%, expected life of 5.22 years and expected volatility of 63.1%. </div> </div>

<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 4 — Acquisition</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In April 2011, we completed the acquisition of the drilling fluids and engineering services business from Rheochem PLC, a publicly-traded Australian-based oil and gas company. The acquired business provides drilling fluids and related engineering services to the oil and gas exploration and geothermal industries with operations in Australia, New Zealand and India. Total cash paid at closing was AUD$24.5 million ($25.9 million), subject to a post-closing adjustment for working capital conveyed at closing. Additional consideration may also be payable based on financial results of the acquired business over a one year earn-out period, up to a maximum total consideration of AUD$45 million (approximately $48 million at the current exchange rate). </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The transaction has been accounted for using the acquisition method of accounting and accordingly, assets acquired and liabilities assumed were recorded at their fair values as of the acquisition date. The excess of the total consideration, including projected additional consideration, was recorded as goodwill and includes the value of the access to markets in Asia Pacific and an assembled workforce. While the initial purchase price allocation has been completed, the allocation of the purchase price is subject to change for a period of one year following the acquisition. The following table summarizes the amounts recognized for assets acquired and liabilities assumed. </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="86%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td align="left" style="border-bottom: 1px solid #000000">(In thousands)</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>   <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Cash and cash equivalents </div></td> <td> </td> <td align="left">$</td> <td align="right">315</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Receivables </div></td> <td> </td> <td> </td> <td align="right">3,316</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Inventories </div></td> <td> </td> <td> </td> <td align="right">7,166</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Prepaid expenses and other current assets </div></td> <td> </td> <td> </td> <td align="right">773</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Property, plant and equipment, net </div></td> <td> </td> <td> </td> <td align="right">9,465</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Goodwill </div></td> <td> </td> <td> </td> <td align="right">13,699</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Customer relationships (18 year life) </div></td> <td> </td> <td> </td> <td align="right">8,533</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Tradename (5 year life) </div></td> <td> </td> <td> </td> <td align="right">620</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Other assets </div></td> <td> </td> <td> </td> <td align="right">510</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Total assets acquired </div></td> <td> </td> <td align="left">$</td> <td align="right">44,397</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Accounts payable </div></td> <td> </td> <td align="left">$</td> <td align="right">717</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Accrued liabilities </div></td> <td> </td> <td> </td> <td align="right">14,673</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Deferred tax liability </div></td> <td> </td> <td> </td> <td align="right">2,820</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Other noncurrent liabilities </div></td> <td> </td> <td> </td> <td align="right">271</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Total liabilities assumed </div></td> <td> </td> <td align="left">$</td> <td align="right">18,481</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Total cash conveyed at closing </div></td> <td> </td> <td align="left">$</td> <td align="right">25,916</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr>  </table> </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">The accrued liabilities balance above includes $13.0 million reflecting anticipated payments to the seller under the terms of the agreement for working capital conveyed at closing and the anticipated additional consideration pursuant to the one year earn-out. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Our operating results include $0.6 million and $1.0 million of acquisition-related costs in the second quarter and first half of 2011, respectively. Proforma results of operation for the acquired business have not been presented as the effect of this acquisition is not material to our consolidated financial statements. </div> </div>

<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 5 — Receivables and Inventories</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><i>Receivables — </i>Receivables consist of the following: </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="72%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>June 30,</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>December 31,</b></td> <td> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td align="left" style="border-bottom: 1px solid #000000">(In thousands)</td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2011</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2010</b></td> <td> </td> </tr>   <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Gross trade receivables </div></td> <td> </td> <td align="left">$</td> <td align="right">228,878</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">193,349</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Allowance for doubtful accounts </div></td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(6,534</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(5,839</td> <td nowrap="nowrap">)</td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Net trade receivables </div></td> <td> </td> <td> </td> <td align="right">222,344</td> <td> </td> <td> </td> <td> </td> <td align="right">187,510</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Other receivables </div></td> <td> </td> <td> </td> <td align="right">13,135</td> <td> </td> <td> </td> <td> </td> <td align="right">9,289</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Total receivables, net </div></td> <td> </td> <td align="left">$</td> <td align="right">235,479</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">196,799</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr>  </table> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><i>Inventories — </i>Our inventories include $133.1 million and $122.5 million of raw materials and components for our drilling fluids systems at June 30, 2011 and December 31, 2010, respectively. The remaining balance consists primarily of composite mat finished goods. </div> </div>   <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 6 — Financing Arrangements and Fair Value of Financial Instruments</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Our financing arrangements include $172.5 million of unsecured convertible senior notes (“Senior Notes”) and a $150.0 million revolving credit facility, of which no borrowings were outstanding at June 30, 2011. The Senior Notes bear interest at a rate of 4.0% per year, payable semi-annually in arrears on April 1 and October 1 of each year, beginning April 1, 2011. Holders may convert the Senior Notes at their option at any time prior to the close of business on the business day immediately preceding the October 1, 2017 maturity date. The conversion rate is initially 90.8893 shares of our common stock per $1,000 principal amount of Senior Notes (equivalent to an initial conversion price of $11.00 per share of common stock), subject to adjustment in certain circumstances. Upon conversion, the Senior Notes will be settled in shares of our common stock. We may not redeem the Senior Notes prior to their maturity date. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Our financial instruments include cash and cash equivalents, receivables, payables and debt. We believe the carrying values of these instruments, with the exception of our Senior Notes, approximated their fair values at June 30, 2011 and December 31, 2010. The estimated fair value of our Senior Notes is $201.8 million at June 30, 2011 and $157.0 million at December 31, 2010, based on quoted market prices at these respective dates. </div> </div>

<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 7 — Commitments and Contingencies</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">In the ordinary course of conducting our business, we become involved in litigation and other claims from private party actions, as well as judicial and administrative proceedings involving governmental authorities at the federal, state and local levels. In the opinion of management, any liability in these matters should not have a material effect on our consolidated financial statements. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> </div>

<div style="font-family: 'Times New Roman',Times,serif; margin-left: 0in; "> <div align="justify" style="font-size: 10pt; margin-top: 10pt"><b>Note 8 — Segment Data</b> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Summarized operating results for our reportable segments is shown in the following table (net of inter-segment transfers): </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="44%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>Second Quarter</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>First Half</b></td> <td> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td nowrap="nowrap" align="left" style="border-bottom: 1px solid #000000">(In thousands)</td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2011</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2010</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2011</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2010</b></td> <td> </td> </tr>   <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px"><b>Revenues</b> </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Fluids systems and engineering </div></td> <td> </td> <td align="left">$</td> <td align="right">191,205</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">150,534</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">361,672</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">286,844</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Mats and integrated services </div></td> <td> </td> <td> </td> <td align="right">27,793</td> <td> </td> <td> </td> <td> </td> <td align="right">16,981</td> <td> </td> <td> </td> <td> </td> <td align="right">50,856</td> <td> </td> <td> </td> <td> </td> <td align="right">30,601</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Environmental services </div></td> <td> </td> <td> </td> <td align="right">11,824</td> <td> </td> <td> </td> <td> </td> <td align="right">13,837</td> <td> </td> <td> </td> <td> </td> <td align="right">20,945</td> <td> </td> <td> </td> <td> </td> <td align="right">24,705</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:30px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:45px; text-indent:-15px">Total revenues </div></td> <td> </td> <td align="left">$</td> <td align="right">230,822</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">181,352</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">433,473</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">342,150</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px"><b>Operating income (loss)</b> </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Fluids systems and engineering </div></td> <td> </td> <td align="left">$</td> <td align="right">20,792</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">15,164</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">39,991</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">27,578</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Mats and integrated services </div></td> <td> </td> <td> </td> <td align="right">14,730</td> <td> </td> <td> </td> <td> </td> <td align="right">5,036</td> <td> </td> <td> </td> <td> </td> <td align="right">26,514</td> <td> </td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">7,750</td> <td nowrap="nowrap">(1)</td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Environmental services </div></td> <td> </td> <td> </td> <td align="right">2,980</td> <td> </td> <td> </td> <td> </td> <td align="right">4,224</td> <td> </td> <td> </td> <td> </td> <td align="right">4,600</td> <td> </td> <td> </td> <td> </td> <td align="right">6,903</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Corporate office </div></td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(6,906</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(4,528</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(11,561</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(8,626</td> <td nowrap="nowrap">)</td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:45px; text-indent:-15px">Operating income </div></td> <td> </td> <td align="left">$</td> <td align="right">31,596</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">19,896</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">59,544</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">33,605</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr>  </table> </div> <table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; text-align: left"> <tr style="font-size: 6pt"> <td width="3%"> </td> <td width="1%"> </td> <td width="96%"> </td> </tr> <tr valign="top"> <td nowrap="nowrap" align="left">(1)</td> <td> </td> <td> <div style="text-align: justify">Includes $0.9 million of other income reflecting proceeds from insurance claims related to Hurricane Ike in 2008.  </div></td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> </table> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Total assets by reportable segment as of June 30, 2011 and December 31, 2010 are as follows: </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="72%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> <td width="3%"> </td> <td width="1%"> </td> <td width="9%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>June 30,</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>December 31,</b></td> <td> </td> </tr> <tr style="font-size: 10pt" valign="bottom"> <td nowrap="nowrap" align="left" style="border-bottom: 1px solid #000000">(In thousands)</td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2011</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2010</b></td> <td> </td> </tr>   <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Fluids systems and engineering </div></td> <td> </td> <td nowrap="nowrap" align="left">$</td> <td align="right">563,830</td> <td nowrap="nowrap">(2)</td> <td> </td> <td align="left">$</td> <td align="right">476,677</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Mats and integrated services </div></td> <td> </td> <td> </td> <td align="right">81,758</td> <td> </td> <td> </td> <td> </td> <td align="right">79,957</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Environmental services </div></td> <td> </td> <td> </td> <td align="right">69,175</td> <td> </td> <td> </td> <td> </td> <td align="right">69,058</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Corporate office </div></td> <td> </td> <td> </td> <td align="right">90,270</td> <td> </td> <td> </td> <td> </td> <td align="right">111,650</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Total assets </div></td> <td> </td> <td align="left">$</td> <td align="right">805,033</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">737,342</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr>  </table> </div> <table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; text-align: left"> <tr style="font-size: 6pt"> <td width="3%"> </td> <td width="1%"> </td> <td width="96%"> </td> </tr> <tr valign="top"> <td nowrap="nowrap" align="left">(2)</td> <td> </td> <td> <div style="text-align: justify">Includes $44.4 million in assets acquired in the April 2011 acquisition. See “Note 4 — Acquisition” for additional details. </div></td> </tr> </table> </div>