|UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549
FORM 10-Q                                                                                                                                                                                                                                                                                       
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                         
|QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                         
|For the quarterly period ended
June 30, 2006                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                         
|PETER KIEWIT SONS, INC.
(Exact name of registrant as specified in its charter)                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                         
|Delaware
(State of Incorporation)                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                         
|Kiewit Plaza, Omaha, Nebraska
(Address of principal executive offices)                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                         
|(402) 342-2052
(Registrants telephone number, including area code)                                                                                                                                                                                                                                                                                                      
|                                                                                                                                                                                                                                                                                                                                                                         
|Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [   ]
|                                                                                                                                                                                                                                                                                                                                                                         
|Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer.  See definition of accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act.  (Check one.):  Large accelerated filer [   ]          Accelerated filer [X]          Non-accelerated filer [   ]                    
|                                                                                                                                                                                                                                                                                                                                                                         
|Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes [   ] No [X]                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                         
|The number of shares outstanding of each of the registrants classes of common stock as of August 8, 2006:                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                         
|Title of Class
Common Stock, $0.01 par value                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                         





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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES
|-----------------------------------------
|                                         
|Index                                    
|Page                                     
|                                         
|PART I - FINANCIAL INFORMATION           
|                                         
|                                         
|Item 1.                                  
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|Item 2.                                  
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|Item 3.                                  
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|Item 4.                                  
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|Item 1A.                                 
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|Item 2.                                  
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|Item 4.                                  
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|Item 6.                                  
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i



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|PART I  FINANCIAL INFORMATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Item 1.
Financial Statements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Report of Independent Registered Public Accounting Firm                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Board of Directors and Stockholders                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Peter Kiewit Sons, Inc.:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|We have reviewed the accompanying consolidated condensed balance sheet of Peter Kiewit Sons, Inc. and subsidiaries as of June 30, 2006, the related consolidated condensed statements of operations for the three and six-month periods ended June 30, 2006 and 2005 and the related consolidated condensed statements of cash flows for the six-month periods ended June 30, 2006 and 2005.  These consolidated condensed financial statements are the responsibility of the Companys management.                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|We conducted our reviews in accordance with the standards of the Public Company Accounting Oversight Board (United States).  A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters.  It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States), the objective of which is the expression of an opinion regarding the financial statements taken as a whole.  Accordingly, we do not express such an opinion.                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Based on our review, we are not aware of any material modifications that should be made to the consolidated condensed financial statements referred to above for them to be in conformity with U.S. generally accepted accounting principles.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|We have previously audited, in accordance with standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of Peter Kiewit Sons, Inc. and subsidiaries as of December 31, 2005, and the related consolidated statements of operations, changes in redeemable common stock and comprehensive income, and cash flows for the year then ended (not presented herein); and in our report dated February 28, 2006, we expressed an unqualified opinion on those consolidated financial statements.  In our opinion, the information set forth in the accompanying consolidated condensed balance sheet as of December 31, 2005, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|(signed)  KPMG LLP                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Omaha, Nebraska                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|August 8, 2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

1



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES                                                          
|---------------------------------------------------------------------------------------------------
|Consolidated Condensed Statements of Operations                                                    
|(unaudited)                                                                                        
|                                                                                                   
|                                                                                                   
|                                                                                                   
|                                                                                                   
|                                                                                                   
|                                                                                                   
|                                                                                                   
|Revenue                                                                                            
|Cost of revenue                                                                                    
|                                                                                                   
|Margin                                                                                             
|                                                                                                   
|General and administrative expenses                                                                
|Gain on sale of operating assets                                                                   
|                                                                                                   
|Operating income                                                                                   
|                                                                                                   
|Other income (expense):                                                                            
|Investment income                                                                                  
|Interest expense                                                                                   
|Other, net                                                                                         
|                                                                                                   
|                                                                                                   
|Income before minority interest, income taxes and
earnings attributable to redeemable common stock*
|                                                                                                   
|Minority interest in income of consolidated subsidiaries                                           
|                                                                                                   
|Income before income taxes and earnings attributable
to redeemable common stock*                   
|                                                                                                   
|Income tax expense                                                                                 
|                                                                                                   
|Net income before earnings attributable to redeemable common stock*                                
|                                                                                                   
|Earnings attributable to redeemable common stock*                                                  
|                                                                                                   
|Net income                                                                                         
|                                                                                                   
|Net earnings per share:                                                                            
|Basic                                                                                              
|                                                                                                   
|Diluted                                                                                            
|                                                                                                   
|* See Note 3 Redeemable Common Stock                                                             
|                                                                                                   
|                                                                                                   
|                                                                                                   
|See accompanying notes to consolidated condensed financial statements.                             

2



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES                             
|----------------------------------------------------------------------
|                                                                      
|Consolidated Condensed Balance Sheets                                 
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|ASSETS                                                                
|                                                                      
|Current assets:                                                       
|Cash and cash equivalents                                             
|Marketable securities                                                 
|Receivables, including retainage of $246 and $221 and                 
|less allowance of $5 and $5                                           
|Unbilled contract revenue                                             
|Contract costs in excess of related revenue                           
|Investment in nonconsolidated joint ventures                          
|Deferred income taxes                                                 
|Other                                                                 
|                                                                      
|Total current assets                                                  
|                                                                      
|Property, plant and equipment, at cost                                
|Less accumulated depreciation and amortization                        
|Net property, plant and equipment                                     
|Other assets                                                          
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|                                                                      
|See accompanying notes to consolidated condensed financial statements.

3



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES                                              
|---------------------------------------------------------------------------------------
|                                                                                       
|Consolidated Condensed Balance Sheets, Continued                                       
|                                                                                       
|                                                                                       
|                                                                                       
|                                                                                       
|                                                                                       
|LIABILITIES AND EQUITY                                                                 
|                                                                                       
|Current liabilities:                                                                   
|Accounts payable, including retainage of $88 and $85                                   
|Current portion of long-term debt                                                      
|Accrued costs on construction contracts                                                
|Billings in excess of related costs and earnings                                       
|Distributions and costs in excess of investment in
nonconsolidated joint ventures      
|Accrued insurance costs                                                                
|Accrued payroll and payroll taxes                                                      
|Other                                                                                  
|                                                                                       
|Total current liabilities                                                              
|                                                                                       
|Long-term debt, less current portion                                                   
|Deferred income taxes                                                                  
|Accrued reclamation                                                                    
|                                                                                       
|Total liabilities excluding redeemable common stock                                    
|                                                                                       
|Total redeemable common stock*                                                         
|                                                                                       
|Total liabilities including redeemable common stock                                    
|                                                                                       
|Minority interest                                                                      
|                                                                                       
|Commitments and contingencies                                                          
|                                                                                       
|Preferred stock, no par value, 250,000 shares authorized,                              
|no shares outstanding                                                                  
|Redeemable common stock ($945 million aggregate redemption value at December 31, 2005):
|Common stock, $0.01 par value, 125 million shares authorized,                          
|19,730,897 issued and outstanding at December 31, 2005                                 
|Additional paid-in capital                                                             
|Accumulated other comprehensive income                                                 
|Retained earnings                                                                      
|Total redeemable common stock*                                                         
|                                                                                       
|Excess of assets over liabilities including redeemable                                 
|common stock *                                                                         
|                                                                                       
|                                                                                       
|                                                                                       
|* See Note 3 Redeemable Common Stock                                                 
|                                                                                       
|See accompanying notes to consolidated condensed financial statements.                 

4



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES                                  
|---------------------------------------------------------------------------
|                                                                           
|Consolidated Condensed Statements of Cash Flows                            
|(unaudited)                                                                
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|Cash flows from operations:                                                
|Net cash provided by operations                                            
|                                                                           
|Cash flows from investing activities:                                      
|Proceeds from sales of available-for-sale securities                       
|Proceeds from maturities of available-for-sale securities                  
|Purchases of available-for-sale securities                                 
|Additions to notes receivable                                              
|Payments received on notes receivable                                      
|Proceeds from sales of property, plant and equipment                       
|Capital expenditures                                                       
|Net cash (used in) provided by investing activities                        
|                                                                           
|Cash flows from financing activities:                                      
|Payments on long-term debt                                                 
|Repurchases of redeemable common stock                                     
|Dividends paid                                                             
|Minority interest contributions                                            
|Minority interest withdrawals                                              
|Net cash used in financing activities                                      
|                                                                           
|Effect of exchange rates on cash                                           
|                                                                           
|Net decrease in cash and cash equivalents                                  
|                                                                           
|Cash and cash equivalents from consolidation of construction joint ventures
|                                                                           
|Cash and cash equivalents at beginning of period                           
|                                                                           
|Cash and cash equivalents at end of period                                 
|                                                                           
|Non-cash financing activities:                                             
|Acquisition of coal lease                                                  
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|                                                                           
|See accompanying notes to consolidated condensed financial statements.     

5



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES

Notes to Consolidated Condensed Financial Statements


1.
Basis of Presentation:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|The consolidated condensed balance sheet of Peter Kiewit Sons, Inc. (PKS, which together with its subsidiaries in which it has or had control and variable interest entities of which it is the primary beneficiary is referred to herein as the Company) at December 31, 2005 has been condensed from the Companys audited balance sheet as of that date.  All other financial statements contained herein are unaudited and, in the opinion of management, contain all adjustments (consisting only of normal recurring accruals) necessary for a fair presentation of financial position and results of operations and cash flows for the periods presented.  The Companys accounting policies and certain other disclosures are set forth in the notes to the consolidated financial statements contained in the Companys Annual Report on Form 10-K.  Management believes that the disclosures are adequate to make the information presented not misleading.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|When appropriate, items within the consolidated condensed financial statements have been reclassified in the previous periods to conform to current year presentation.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|The Company reclassified $345 million of short-term investments to marketable securities on its consolidated condensed balance sheet at December 31, 2005 which were previously presented as cash and cash equivalents.  The purchases and sales related to the investments during the six months ended June 30, 2006 and June 30, 2005 have been presented on the consolidated condensed statements of cash flows in the investing activities section.  The reclassification had no impact on the Companys financial position or results of operations for any periods presented.                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|The results of operations for the three and six months ended June 30, 2006 are not necessarily indicative of the results to be expected for the full year.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|2.
Recent Accounting Pronouncements:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|In June 2006, the Financial Accounting Standards Board (FASB) released Interpretation No. 48 Accounting for Uncertainty in Income Taxes  an interpretation of FASB Statement No. 109 (FIN 48).  FIN 48 provides specific guidance on how to address uncertainty in accounting for income tax assets and liabilities, prescribing recognition thresholds and measurement attributes.  FIN 48 is effective for the Company beginning with the 2007 fiscal year.  The Company is continuing to evaluate the impact of the adoption of FIN 48.                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|3.
Redeemable Common Stock:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|The Companys Redeemable Common Stock is the only class of stock that is issued and outstanding.  Ownership of the Companys Redeemable Common Stock is generally restricted to directors and active employees of the Company and is conditioned upon the execution of repurchase agreements which restrict transfer of the Redeemable Common Stock.  The Company is obligated to purchase all Redeemable Common Stock upon the death or termination of a stockholder at the formula price computed pursuant to PKS Restated Certificate of Incorporation.  Additionally, the Redeemable Common Stock has no active market, can only be exchanged with the Company, and represents claims that have no priority over any other claims upon liquidation.                                                                                                                                                                                                                  



6



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES

Notes to Consolidated Condensed Financial Statements


3.
Redeemable Common Stock, Continued:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Effective January 1, 2006, the Company began accounting for the Redeemable Common Stock under the provisions of Statement of Financial Accounting Standards (SFAS) No. 150, Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity, (SFAS 150).  Since the Company is obligated to purchase all Redeemable Common Stock upon death or termination of a stockholder, it is considered mandatorily redeemable under SFAS 150.  SFAS 150 requires that mandatorily redeemable stock be recorded at formula value and presented as a liability on the balance sheet.  The formula value of the Redeemable Common Stock is determined annually and is based on the book value of the Company.  Formula value equals total assets (excluding property, plant and equipment used in the Companys construction activities (Construction PP&E)), reduced by total liabilities (excluding the liability for Redeemable Common Stock) and minority interest.  Any excess of assets over liabilities, which consists entirely of the net book value of the Construction PP&E (approximately $174 million at June 30, 2006), is presented as Excess of assets over liabilities including redeemable common stock.  Period to period changes in formula value represent an expense in the consolidated condensed statement of operations captioned Earnings attributable to redeemable common stock beginning in 2006.  Period to period changes in Construction PP&E are not attributable to Redeemable Common Stock and therefore, represent Net income beginning in 2006 on the consolidated condensed statement of operations.  Since formula value of the Redeemable Common Stock is based on the book value of the Company, the SFAS 150 earnings attributable to redeemable common stock offsets a substantial portion of current year earnings.  Furthermore, since SFAS 150 requires that mandatorily redeemable stock be excluded from earnings per share, the Company has not presented earnings per share beginning in 2006.  These accounting and presentation changes have occurred despite the fact that the underlying nature and terms of the Companys Redeemable Common Stock have not changed.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Prior to the adoption of SFAS 150, the Company accounted for the Redeemable Common Stock under Emerging Issues Task Force (EITF) Issue No. 87-23, Book Value Stock Purchase Plans (EITF No. 87-23), whereby changes in the aggregate redemption value of the Redeemable Common Stock are not recognized as an expense.  Additionally, the Company presented the Redeemable Common Stock as mezzanine equity on the consolidated balance sheets.  As of January 1, 2006, SFAS No. 123-R, Share-Based Payment, preempts the provisions of EITF No. 87-23 for the Company and supplants them with those of SFAS 150.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      



7



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES

Notes to Consolidated Condensed Financial Statements


3.
Redeemable Common Stock, Continued:
|----------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                        
|The changes in the components of the Redeemable Common Stock for the six months ended June 30, 2006 were as follows:                    
|                                                                                                                                        
|                                                                                                                                        
|                                                                                                                                        
|                                                                                                                                        
|December 31, 2005 balance, $0.01 par                                                                                                    
|value, 125 million shares authorized,                                                                                                   
|19,730,897 issued and outstanding                                                                                                       
|                                                                                                                                        
|Dividends                                                                                                                               
|Repurchase of redeemable common                                                                                                         
|stock                                                                                                                                   
|Cumulative change in accounting                                                                                                         
|principle                                                                                                                               
|                                                                                                                                        
|Comprehensive income:                                                                                                                   
|Net income before earnings                                                                                                              
|attributable to redeemable                                                                                                              
|common stock                                                                                                                            
|Other comprehensive income,                                                                                                             
|net of tax:                                                                                                                             
|Foreign currency adjustment                                                                                                             
|Change in unrealized holding gain                                                                                                       
|                                                                                                                                        
|Total other comprehensive income                                                                                                        
|                                                                                                                                        
|Total comprehensive income                                                                                                              
|                                                                                                                                        
|June 30, 2006 balance, $0.01 par                                                                                                        
|value, 125 million shares authorized,                                                                                                   
|18,256,667 issued and outstanding                                                                                                       
|                                                                                                                                        
|Excess of assets over liabilities                                                                                                       
|                                                                                                                                        
|Total redeemable common stock                                                                                                           



8



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES

Notes to Consolidated Condensed Financial Statements


3.
Redeemable Common Stock, Continued:

The changes in the components of accumulated other comprehensive income for the six months ended June 30, 2006 and the year ended December 31, 2005 were as follows:
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                              
|Balance at beginning of period                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                              
|Unrealized holding gain arising during period                                                                                                                                                                                                                                                                 
|Tax expense                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                              
|Foreign currency translation adjustments                                                                                                                                                                                                                                                                      
|Tax expense                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                              
|Balance at end of period                                                                                                                                                                                                                                                                                      



|4.
Deferred Stripping Costs:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Effective January 1, 2006, the Company adopted EITF No. 04-6, Accounting for Stripping Costs Incurred During Production in the Mining Industry, (EITF No. 04-6).  Mining companies typically remove rock, soil and waste materials (overburden) in order to access mineral deposits.  EITF No. 04-6 specifies that the stripping costs related to exposed, but not extracted, mineral must be expensed as incurred rather than inventoried in the cost of the mineral.  Prior to implementing EITF No. 04-6, the Company deferred stripping costs and charged them to operations as coal was extracted and sold.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|The cumulative effect, net of tax, of implementing EITF No. 04-6 resulted in a reduction of retained earnings attributable to Redeemable Common Stock of $8 million in the first quarter of 2006.                                                                                                                                                                                                                                                                                                                                                                                                                     



|5.
Earnings Per Share:                                                                                                                                                                                                                                                                                                                                                                                                                                 
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|For the three and six months ended June 30, 2005, basic earnings per share was computed using the weighted average number of shares outstanding during the period.  Diluted earnings per share gives effect to convertible debentures considered to be dilutive common stock equivalents.  As described in Note 3, earnings per share for the three and six months ended June 30, 2006 has not been presented consistent with the adoption of SFAS 150.

9



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES

Notes to Consolidated Condensed Financial Statements                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|5.
Earnings Per Share, Continued:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Net income available to common stockholders (in millions)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Add:  Interest expense, net of tax effect,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|associated with convertible debentures                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Net income for diluted shares                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Total number of weighted average shares outstanding used to                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|compute basic earnings per share (in thousands)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Additional dilutive shares assuming                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|conversion of convertible debentures                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Total number of shares used to compute                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|diluted earnings per share                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Net income per share:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Basic                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Diluted                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|* Interest expense attributable to convertible debentures was less than $0.5 million, net of tax.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|6.
Disclosures about Fair Value of Financial Instruments:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Foreign Currency Forward Contracts.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company has entered into several foreign currency forward contracts as a strategy to offset the earnings impact of currency fluctuations upon future transactions.  The forward contracts are generally scheduled to mature as those future transactions occur.  The forward contracts have not been designated as hedging instruments under SFAS 133, Accounting for Derivative Instruments and Hedging Activities.  The forward contracts had outstanding notional amounts of $U.S. 122 million and $U.S. 62 million at June 30, 2006 and December 31, 2005, respectively.  The forward contracts will offset the earnings impact caused by currency fluctuations of U.S. dollar denominated liabilities and expenses related to the completion of construction contracts by Canadian subsidiaries.  The forward contracts are recorded in liabilities in the consolidated condensed balance sheets at fair value based upon quoted market prices.  Changes in the fair value of the forward contracts are immediately recognized in cost of revenue in the consolidated condensed statements of operations.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

10



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES

Notes to Consolidated Condensed Financial Statements


6.
Disclosures about Fair Value of Financial Instruments, Continued:

The forward contracts mature monthly in varying amounts between 2006 and 2008 and will settle based upon the difference between the current exchange rate at the time of settlement and the exchange rates in the forward contracts.  At June 30, 2006 and December 31, 2005, the fair value of these forward contracts was a current liability of $3 million and $2 million, respectively, and a long-term liability of less than $0.5 million for both periods.  During the three months ended June 30, 2006 and June 30, 2005, the Company recognized losses on the forward contracts of $3 million and gains of $1 million, respectively.  During the six months ended June 30, 2006 and June 30, 2005, the Company recognized losses on the forward contracts of $3 million and $1 million, respectively.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|7.
Segment Data:                                                      
|----------------------------------------------------------------------
|                                                                      
|The Company has two reportable segments, construction and coal mining.



|Intersegment sales, if any, are recorded at cost and are eliminated upon consolidation.  There were no intersegment sales for the three and six months ended June 30, 2006 and June 30, 2005.  Operating income is comprised of net sales less all identifiable operating expenses, general and administrative expenses, gain on sale of operating assets and depreciation and amortization.  Investment income and interest expense have been excluded from segment operations.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Revenue  external customers                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Depreciation and amortization                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Operating income                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Revenue  external customers                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Depreciation and amortization                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Operating income                                                                                                                                                                                                                                                                                                                                                                                                                                                                



11



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|PETER KIEWIT SONS, INC. AND SUBSIDIARIES           
|----------------------------------------------------
|                                                    
|Notes to Consolidated Condensed Financial Statements
|                                                    
|                                                    
|8.
Other Matters:                                   
|                                                    
|                                                    
|                                                    
|                                                    
|                                                    
|                                                    
|                                                    
|                                                    
|                                                    



12



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|Item 2.
Managements Discussion and Analysis of Financial Condition and Results of Operations.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|This document contains forward looking statements and information that are based on the beliefs of management as well as assumptions made by and information currently available to the Company.  When used in this document, the words anticipate, believe, estimate, expect and similar expressions, as they relate to the Company or its management, are intended to identify forward-looking statements.  Such statements reflect the current views of the Company with respect to future events and are subject to certain risks, uncertainties and assumptions.  Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in this document.                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Overview.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company primarily operates in the construction industry and has two reportable operating segments, construction and coal mining.  The construction segment performs services for a broad range of public and private customers primarily in the United States and Canada.  The Companys coal mining segment owns and manages coal mines in the United States that sell primarily to electric utilities.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|For the twelve months ended June 30, 2006 and June 30, 2005, public contracts accounted for approximately 75% and 60%, respectively, of the combined prices of construction contracts awarded to the Company.  For the six months ended June 30, 2006 and June 30, 2005, public contracts accounted for approximately 57% and 64%, respectively, of construction revenue earned by the Company.  Most of these contracts were awarded by government and quasi-government units under fixed price contracts after competitive bidding.                                                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company frequently enters into joint ventures to efficiently allocate expertise and resources among the venturers and to spread risks associated with particular construction projects.  During the six months ended June 30, 2006 and June 30, 2005, the Company derived approximately 82% and 88%, respectively, of its construction joint venture revenue from sponsored joint ventures and approximately 18% and 12%, respectively, from non-sponsored joint ventures.  Construction joint venture revenue accounted for approximately 25% and 36% of total construction revenue for the six months ended June 30, 2006 and June 30, 2005, respectively.                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Due to their competitive nature, the construction and coal mining industries experience lower margins than many other industries.  As a result, cost control is a primary focus of the Company.  The ability to control costs enables the Company to price more competitively and also to complete contracts profitably.  Further, since the formula value of the Companys Redeemable Common Stock is based upon the Companys book value (assets excluding property, plant and equipment used in the Companys construction activities, less liabilities excluding Redeemable Common Stock, less minority interest), formula value is primarily driven by the Companys ability to complete contracts profitably.  Consequently, the Company views both margin as a percentage of revenue and general and administrative expenses as a percentage of revenue as key measures of operating results.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Results of Operations  Second Quarter 2006 vs. Second Quarter 2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Revenue.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Revenue from each of the Companys segments was:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Construction                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Coal mining                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

13



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|Total construction revenue increased $236 million or 25% from the same period in 2005.  Increases in revenue from the second quarter of 2005 to the second quarter of 2006 include numerous construction projects spanning various markets including petroleum ($130 million) exclusive of a large oil and gas joint venture project located in Newfoundland, Canada (Oil and Gas Project), power/heat/cooling ($74 million), transportation ($53 million), water supply/dams ($44 million) and sewage and solid waste disposal ($30 million).  Offsetting these increases was a decrease in revenues of $126 million (of which $88 million represented claim revenue) on the Oil and Gas Project which was substantially completed in 2005.  Given the non-recurring nature of construction projects, the mix and volume of construction projects by market often varies from period to period.
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Construction contract backlog at June 30, 2006 and June 30, 2005 was $6.4 billion and $5.1 billion, respectively.  Additionally, the Company was low bidder on $0.9 billion and $1.1 billion of construction jobs that had not been awarded at June 30, 2006 and June 30, 2005, respectively.  Foreign operations, located primarily in Canada, represent 14% of construction backlog at June 30, 2006.  Domestic construction projects are spread geographically throughout the U.S.  The Companys 10 largest jobs in backlog made up 51% of total backlog at both June 30, 2006 and June 30, 2005.                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Coal mining revenues increased $4 million or 9% from the same period in 2005.  This increase is primarily due to an increased sales price per ton and, to a lesser degree,. increased tons sold                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Coal mining sales backlog at June 30, 2006 and June 30, 2005 was approximately 135 million and 99 million, respectively, tons of coal.  The remaining terms on these contracts range from less than 1 year to 20 years.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Operating Income.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Operating income consists of margin (revenue less cost of revenue), general and administrative expenses and gain on sale of operating assets.  Operating income from each of the Companys segments was:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Margin                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|General and administrative expenses                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Gain on sale of operating assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Operating income                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Margin.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Total construction margin decreased $71 million or 33% from the same period in 2005 primarily due to the substantial completion of the Oil and Gas Project in 2005.  Margin on the Oil and Gas Project decreased a total of $108 million (including $88 million in claim margin).  Offsetting the margin decrease from 2005 to 2006 on the Oil and Gas Project were increases in margin on numerous construction projects spanning various markets including power/heat/cooling ($18 million), water supply/dams ($14 million), petroleum ($13 million) exclusive of the Oil and Gas Project, sewage and solid waste disposal ($5 million), and transportation ($2 million).  Given the non-recurring nature of construction projects, the mix and volume of construction projects by market often varies from period to period.                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Construction margin as a percentage of construction revenue for the three months ended June 30, 2006 decreased to 12% from 23% for the same period in 2005, primarily due to the claim margin earned from the Oil and Gas Project in 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Total coal mining margin decreased $3 million or 23% from the same period in 2005.  Coal mining margin as a percentage of coal mining revenue for the three months ended June 30, 2006 decreased to 21% from 30% for the same period in 2005.  The decreases are primarily due to lower fees earned from a mining services contract.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

14



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|General and Administrative Expenses.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|General and administrative expenses related to construction operations for the three months ended June 30, 2006 decreased $4 million from the same period in 2005, primarily due to compensation expense in 2005 related to the vesting of convertible debentures.  As a percentage of revenue, general and administrative expenses for the three months ended June 30, 2006 decreased to 5% as compared to 7% for the same period in 2005 as increased revenues did not require a proportionate increase in general and administrative expenses.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|General and administrative expenses related to mining operations remained consistent at $2 million in the second quarter of 2006 as compared to the same period in 2005.  As a percentage of revenue, general and administrative expenses for the three months ended June 30, 2006 remained consistent at 4.2%.                                                                                                                                                                                                                                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Gain on Sale of Operating Assets.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Net gains on the disposition of property, plant and equipment were $3 million and $4 million for the three months ended June 30, 2006 and June 30, 2005, respectively.  Gain on sale of operating assets is affected to a large degree by market conditions and the specific types and quantity of pieces of equipment sold.                                                                                                                                                                                                                     
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Other Income (Expense).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Other net income decreased $4 million for the three months ended June 30, 2006 from the same period in 2005 primarily due to increased foreign exchange losses offset by increased interest income.                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Minority Interest in Income of Consolidated Subsidiaries.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Minority interest in income of consolidated subsidiaries consists primarily of the portion of the consolidated construction joint ventures that is not owned by the Company.  During the three months ended June 30, 2006, the Company recognized $8 million of minority interest in income of consolidated subsidiaries as compared to $69 million in the same period in 2005.  The majority of this decrease is attributable to the completion of the Oil and Gas Project in 2005.                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Income Tax Expense.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|The Company measures income tax expense for interim periods by calculating an estimated annual effective tax rate for the applicable period.  The estimated effective income tax rates applied to operations for the three months ended June 30, 2006 and June 30, 2005 were 38% and 39% respectively.  These rates differ from the federal statutory rate of 35% primarily due to state income taxes, offset in part by the deduction for domestic production activities, tax exempt interest income and percentage depletion.                  
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Earnings Attributable to Redeemable Common Stock.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|As described in Note 3, Redeemable Common Stock, the Company adopted the provisions of SFAS 150 as of January 1, 2006.  SFAS 150 requires that Redeemable Common Stock be recorded as a liability at formula value and that changes in formula value be recorded as an expense on the consolidated condensed statement of operations.  That expense, captioned Earnings attributable to redeemable common stock represents the portion of earnings for the period that, at the next annual determination, will increase formula value.         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 



15



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|Results of Operations  Six Months 2006 vs. Six Months 2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Revenue.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Revenue from each of the Companys segments was:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Construction                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Coal Mining                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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|Total construction revenue increased $408 million or 24% from the same period in 2005.  Increases in revenue include numerous construction projects spanning various markets including petroleum ($162 million) exclusive of the Oil and Gas Project, power/heat/cooling ($128 million), transportation ($82 million), water supply/dams ($64 million), sewage and solid waste disposal ($45 million) and commercial building ($15 million).  Offsetting these increases was a decrease in revenue from the Oil and Gas project of $150 million (including $88 million in claim revenue) and a decrease in other claim revenue of $3 million from $9 million in the six months ended June 30, 2005 to $6 million in the six months ended June 30, 2006.  Given the non-recurring nature of construction projects, the mix and volume of construction projects by market often varies from period to period.
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|Coal mining revenues increased $9 million or 11% from the same period in 2005.  This increase is primarily due to an increased sales price per ton and, to a lesser degree, increased tons sold.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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|Operating Income.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Operating income consists of margin (revenue less cost of revenue), general and administrative expenses and gain on sale of operating assets.  Operating income from each of the Companys segments was:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|Margin                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|General and administrative expenses                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Gain on sale of operating assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Operating income                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

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|Margin.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Total construction margin decreased $19 million or 8% from the same period in 2005 primarily due to the substantial completion of the Oil and Gas Project in 2005.  Margin on the Oil and Gas Project decreased a total of $84 million (including $88 million in claim margin).  Offsetting the decrease from 2005 to 2006 on the Oil and Gas Project were increases in margin on numerous construction projects spanning various markets including water supply/dams ($24 million), transportation ($20 million), power/heat/cooling ($16 million), and sewage and solid waste disposal ($11 million).  Given the non-recurring nature of construction projects, the mix and volume of construction projects by market often varies from period to period.
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|Construction margin as a percentage of construction revenue for the six months ended June 30, 2006 decreased to 11% from 14% for the same period in 2005, primarily due to the claim margin earned from the Oil and Gas Project in 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|Total coal mining margin decreased $4 million or 15% from the same period in 2005.  Coal mining margin as a percentage of coal mining revenue for the six months ended June 30, 2006 decreased to 25% from 32% for the same period in 2005.  The decreases are primarily due to lower fees earned from a mining services contract.                                                                                                                                                                                                                                                                                                                                                                                                                         
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|General and Administrative Expenses.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|General and administrative expenses related to construction operations for the six months ended June 30, 2006 decreased $2 million from the same period in 2005.  As a percentage of revenue, general and administrative expenses for the six months ended June 30, 2006 decreased to 6% as compared to 8% for the same period in 2005 as increased revenues did not require a proportionate increase in general and administrative expenses.                                                                                                                                                                                                                                                                                                              
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|General and administrative expenses related to mining operations increased $1 million in the six months ended June 30, 2006 as compared to the same period in 2005.  As a percentage of revenue, general and administrative expenses for the six months ended June 30, 2006 increased to 5.1% as compared to 4.9% for the same period in 2005.                                                                                                                                                                                                                                                                                                                                                                                                             
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Gain on Sale of Operating Assets.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|Net gains on the disposition of property, plant and equipment were $8 million and $6 million for the six months ended June 30, 2006 and June 30, 2005, respectively.  Gain on sale of operating assets is affected to a large degree by market conditions and the specific types and quantity of pieces of equipment sold.                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Other Income (Expense).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
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|Other net income decreased $2 million for the six months ended June 30, 2006 from the same period in 2005 primarily due to increased foreign exchange losses offset by increased interest income.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|Minority Interest in Income of Consolidated Subsidiaries.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
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|Minority interest in income of consolidated subsidiaries consists primarily of the portion of the consolidated construction joint ventures that is not owned by the Company.  During the six months ended June 30, 2006, the Company recognized $11 million of minority interest in income of consolidated subsidiaries as compared to $63 million in the same period in 2005.  The majority of this decrease is attributable to the completion of the Oil and Gas Project in 2005.                                                                                                                                                                                                                                                                        
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|Income Tax Expense.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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|The Company measures income tax expense for interim periods by calculating an estimated annual effective tax rate for the applicable period.  The estimated effective income tax rates applied to operations for the six months ended June 30, 2006 and June 30, 2005 were 38% and 39% respectively.  These rates differ from the federal statutory rate of 35% primarily due to state income taxes, offset in part, by the deduction for domestic production activities, tax exempt interest income and percentage depletion.                                                                                                                                                                                                                             



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|Earnings Attributable to Redeemable Common Stock.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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|As described in Note 3, Redeemable Common Stock, the Company adopted the provisions of SFAS 150 as of January 1, 2006.  SFAS 150 requires that Redeemable Common Stock be recorded as a liability at formula value and that changes in formula value be recorded as an expense on the consolidated condensed statement of operations.  That expense, captioned Earnings attributable to redeemable common stock represents the portion of earnings for the period that, at the next annual determination, will increase formula value.



|Financial Condition  June 30, 2006 vs. December 31, 2005                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Cash and cash equivalents decreased $56 million to $262 million at June 30, 2006 from $318 million at December 31, 2005.  The major items contributing to the decrease were $108 million of capital expenditures, $70 million of repurchases of Redeemable Common Stock and $30 million of dividends paid, offset primarily by $137 million of cash provided by operations and $25 million of net proceeds from available-for-sale securities.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Net cash provided by operating activities for the six months ended June 30, 2006 increased by $115 million to $137 million as compared to $22 million in the same period in 2005.  This increase was primarily due to decreased receivables and increased billings in excess of related costs and earnings resulting from significant mobilization payments on new projects.  Cash provided or used by operating activities is affected to a large degree by the mix, timing, stage of completion and terms of individual contracts which are reflected in changes through current assets and liabilities.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Net cash used in investing activities for the six months ended June 30, 2006 increased by $147 million to $72 million as compared to cash provided of $75 million in the same period in 2005.  The increase was primarily due to increased capital expenditures of $45 million from $63 million to $108 million, and decreased net proceeds from available-for-sale securities of $85 million from $110 million to $25 million.  In 2005, available-for-sale securities were sold to partially fund increased repurchases of Redeemable Common Stock caused by a $398 million tender offer and $52 million of repurchases resulting from changes in the roles of certain members of executive management.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Capital spending varies due to the nature and timing of jobs awarded.  Management does not expect any material changes to capital spending.  Acquisitions depend largely on market conditions.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
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|Net cash used in financing activities for the six months ended June 30, 2006 decreased by $460 million to $124 million as compared to $584 million in the same time period in 2005.  This decrease was primarily due to repurchases of Redeemable Common Stock in 2005 caused by a $398 million tender offer and $52 million of repurchases resulting from changes in the roles of certain members of executive management.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Liquidity.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|During the six months ended June 30, 2006 and June 30, 2005, the Company expended $108 million and $63 million, respectively, on capital expenditures.  The Company anticipates that its future cash requirements for capital expenditures and acquisitions will not change significantly from these historical amounts except as described below.  Cash generated by joint ventures, while readily available, is generally not distributed to partners until the liabilities and commitments of the joint ventures have been substantially satisfied.  Other long-term liquidity uses include the payment of income taxes, long-term debt and dividends.  As of June 30, 2006, the Company had no material firm binding purchase commitments related to its investments other than meeting the normal course of business needs of its construction joint ventures and as discussed below.  The current portion of long-term debt is $9 million.  The Company paid dividends during the six months ended June 30, 2006 and June 30, 2005 of $30 million and $27 million, respectively.  The Company also has the commitment to repurchase its Redeemable Common Stock at any time during the year from shareholders.

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|The Company anticipates repurchasing approximately 893,000 shares of Redeemable Common Stock over the next 2 years as a result of changes in the roles of certain members of executive management.  The aggregate value of these shares calculated at the June 30, 2006 formula price is approximately $43 million.                                                                                                                                                           
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|It is customary in the Companys industry to use standby letters of credit.  At June 30, 2006, the Company had outstanding letters of credit with a number of banks totaling approximately $248 million.  None of the available letters of credit have been drawn upon.                                                                                                                                                                                                       
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|The Companys current financial condition, together with anticipated cash flows from operations, should be sufficient for immediate cash requirements and future investing activities.  The Company does not have any committed bank credit facilities.  In the past, the Company has been able to borrow on satisfactory terms.  The Company believes that, to the extent necessary, it will likewise be able to borrow funds on acceptable terms for the foreseeable future.
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|Off-Balance Sheet Arrangements.                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|During the six months ended June 30, 2006 and June 30, 2005, the Company did not enter into any off-balance sheet arrangements requiring disclosure under this caption.                                                                                                                                                                                                                                                                                                       



|Item 3.
Quantitative and Qualitative Disclosures About Market Risk.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company holds a diversified portfolio of investments that primarily includes cash, high quality commercial paper, U.S. Government debt obligations, U.S. Government Agency debt obligations, tax exempt municipal securities and equity mutual funds.  Except for cash, each of these investments is subject, in varying degrees, to market risk, interest rate risk, economic risk and credit risk.  These risks, among others, could result in the loss of principal.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|The Company has entered into several foreign currency forward contracts as a strategy to offset the earnings impact of currency fluctuations upon future transactions.  The forward contracts are generally scheduled to mature as those future transactions occur.  The forward contracts have not been designated as hedging instruments under SFAS 133, Accounting for Derivative Instruments and Hedging Activities.  The forward contracts had outstanding notional amounts of $U.S. 122 million and $U.S. 62 million at June 30, 2006 and December 31, 2005, respectively.  The forward contracts will offset the earnings impact caused by currency fluctuations of U.S. dollar denominated liabilities and expenses related to the completion of construction contracts by Canadian subsidiaries.  The forward contracts are recorded in liabilities in the consolidated condensed balance sheets at fair value based upon quoted market prices.  Changes in the fair value of the forward contracts are immediately recognized in cost of revenue in the consolidated condensed statements of operations.
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|The forward contracts mature monthly in varying amounts between 2006 and 2008 and will settle based upon the difference between the current exchange rate at the time of settlement and the exchange rates in the forward contracts.  At June 30, 2006 and December 31, 2005, the fair value of these forward contracts was a current liability of $3 million and $2 million, respectively, and a long-term liability of less than $0.5 million for both periods.  During the three months ended June 30, 2006 and June 30, 2005, the Company recognized losses on the forward contract of $3 million and gains of $1 million respectively.  During the six months ended June 30, 2006 and June 30, 2005, the Company recognized losses on the forward contracts of $3 million and $1 million, respectively.  A 10% change in the Canadian/U.S. exchange rate would result in a gain of approximately $13 million in the event of an increase in the exchange rate, or a loss of approximately $13 million in the event of a decrease.                                                                              



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|Item 4.      Controls and Procedures.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|As required by Exchange Act Rule 13a-15(b), the management of the Company, including the Chief Executive Officer and Chief Financial Officer, conducted an evaluation as of the end of the period covered by this report, of the effectiveness of the Companys disclosure controls and procedures as defined in Exchange Act Rule 13a-15(e).  Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Companys disclosure controls and procedures were effective as of the end of the period covered by this report.  As required by Exchange Act Rule 13a-15(d), the Company, including the Chief Executive Officer and Chief Financial Officer, also conducted an evaluation of the Companys internal control over financial reporting to determine whether any changes occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the Companys internal control over financial reporting.  Based on that evaluation, there has been no such change during the period covered by this report.
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|PART II - OTHER INFORMATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Item 1A.      Risk Factors.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
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|There have been no material changes from the risk factors as previously disclosed in the Companys Form 10-K as filed for the fiscal year ended December 31, 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
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|Item 2.      Unregistered Sales of Equity Securities and Use of Proceeds.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|(e)
Issuer purchases of equity securities.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           



|Period                               |  | Total Number of
Shares of
Redeemable Common
Stock Repurchased |  | Average Price
Paid per Share of
Redeemable
Common Stock
|------------------------------------ |  | ------------------------------------------------------------- |  | -------------------------------------------------------
|                                     |  |                                                               |  |                                                        
|April 1, 2006 through April 30, 2006 |  | 57,201                                                        |  | $47.10                                                 
|May 1, 2006 through May 31, 2006     |  | 26,090                                                        |  | $46.25                                                 
|June 1, 2006 through June 30, 2006   |  | 20,818                                                        |  | $46.25                                                 
|                                     |  |                                                               |  |                                                        
|Total                                |  | 104,109                                                       |  | $46.72                                                 



|Pursuant to the terms of PKS Restated Certificate of Incorporation ("Certificate"), the Company is required to repurchase shares of Redeemable Common Stock at a formula price, generally upon demand.  Redeemable Common Stock can generally be issued only to employees and directors of the Company and can be resold only to the Company at a formula price based on the year-end book value of the Company.
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                 
|Item 4.      Submission of Matters to a Vote of Security Holders.                                                                                                                                                                                                                                                                                                                                                
|                                                                                                                                                                                                                                                                                                                                                                                                                 
|PKSs annual meeting of stockholders was held on June 12, 2006.  The holders of 17,779,501 of the 18,303,575 outstanding shares of Redeemable Common Stock were present in person or by proxy at the annual meeting.  At such meeting, the following matters were submitted to a vote and approved by the stockholders:                                                                                          



| | 1.
Approval of the Certificate Amendment.  The stockholders were asked to approve an amendment to the Certificate to revise the definition of current inside director.  The amendment was approved by the stockholders.  The votes cast for, against or abstaining were as follows:
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |                                                                                                                                                                                                                                                                                      
| | Affirmative Votes                                                                                                                                                                                                                                                                    
| |                                                                                                                                                                                                                                                                                      
| | 17,698,555                                                                                                                                                                                                                                                                           

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|2.
Election of Directors.  A slate of nominees for director was proposed by the incumbent directors.  No additional nominations were received and all of the nominees proposed by the board were elected to serve one-year terms.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                 
|Director Nominee
Votes For
Withheld                                                                                                                                                                                              
|                                                                                                                                                                                                                                 
|Mogens C. Bay
17,763,662
15,839                                                                                                                                                                                                  
|Scott L. Cassels
17,763,662
15,839                                                                                                                                                                                               
|Richard W. Colf
17,763,662
15,839                                                                                                                                                                                                
|Richard Geary
17,762,396
17,105                                                                                                                                                                                                  
|Bruce E. Grewcock
17,763,662
15,839                                                                                                                                                                                              
|Steven Hansen
17,763,662
15,839                                                                                                                                                                                                  
|Allan K. Kirkwood
17,763,662
15,839                                                                                                                                                                                              
|Michael R. McCarthy
17,763,662
15,839                                                                                                                                                                                            
|Christopher J. Murphy
17,763,662
15,839                                                                                                                                                                                          
|Douglas E. Patterson
17,752,564
26,937                                                                                                                                                                                           
|R. Michael Phelps
17,763,662
15,839                                                                                                                                                                                              
|Kirk R. Samuelson
17,763,662
15,839                                                                                                                                                                                              
|Walter Scott, Jr.
17,762,396
17,105                                                                                                                                                                                              
|Thomas S. Shelby
17,763,662
15,839                                                                                                                                                                                               
|Kenneth E. Stinson
17,763,662
15,839                                                                                                                                                                                             



|Item 6.      Exhibits.                                                               
|-------------------------------------------------------------------------------------
|                                                                                     
|Exhibits required by Item 601 of Regulation S-K.                                     
|                                                                                     
|3
Restated Certificate of Incorporation                                              
|15.1
Letter re unaudited interim financial information.                              
|31.1
Rule 15d-14(a) Certification of Chief Executive Officer.                        
|31.2
Rule 15d-14(a) Certification of Chief Financial Officer.                        
|32
Section 1350 Certification of Chief Executive Officer and Chief Financial Officer.
|                                                                                     



|SIGNATURES                                                                                                                                                                              
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                        
|Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
|                                                                                                                                                                                        
|Date:  August 8, 2006                                                                                                                                                                   



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