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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549



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FORM 10-Q

(Mark One)



|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------

For the quarterly period ended September 30, 2006

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from  to

Commission file number 1-11953

Willbros Group, Inc.

(Exact name of registrant as specified in its charter)



|                                |  |                                        
|------------------------------- |  | ---------------------------------------
|Republic of Panama              |  | 98-0160660                             
|(Jurisdiction of incorporation) |  | (I.R.S. Employer Identification Number)

Plaza 2000 Building

50th Street, 8th Floor

P.O. Box 0816-01098

Panama, Republic of Panama

Telephone
No.: +50-7-213-0947

(Address, including zip code, and telephone number, including

area code, of principal executive offices of registrant)



|                                                                                  
|----------------------------------------------------------------------------------
|NOT APPLICABLE                                                                    
|(Former name, former address and former fiscal year, if changed since last report)

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 of the registrants Common Stock, $.05 par value, outstanding as of
November 1, 2006 was 25,525,914



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WILLBROS GROUP, INC.

FORM 10-Q

FOR QUARTER ENDED SEPTEMBER 30, 2006



|                               |  |                                                                                                                                                         |  |     
|------------------------------ |  | ------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ----
|PART I  FINANCIAL INFORMATION |  |                                                                                                                                                        
|                               |  |                                                                                                                                                         |  | Page
|Item 1                        |  | Financial Statements                                                                                                                                    |  |     
|                               |  |                                                                                                                                                        
|                               |  | Condensed Consolidated Balance Sheets (Unaudited) as of September 30, 2006 and December 31, 2005                                                        |  | 3   
|                               |  |                                                                                                                                                        
|                               |  | Condensed Consolidated Statements of Operations (Unaudited) for the three-month and nine-month periods ended September 30, 2006 and 2005                |  | 4   
|                               |  |                                                                                                                                                        
|                               |  | Condensed Consolidated Statement of Stockholders Equity and Comprehensive Income (Loss) (Unaudited) for the nine-month period ended September 30, 2006 |  | 5   
|                               |  |                                                                                                                                                        
|                               |  | Condensed Consolidated Statements of Cash Flows (Unaudited) for the nine-month periods ended September 30, 2006 and 2005                                |  | 6   
|                               |  |                                                                                                                                                        
|                               |  | Notes to Condensed Consolidated Financial Statements (Unaudited)                                                                                        |  | 8   
|                               |  |                                                                                                                                                        
|Item 2                        |  | Managements Discussion and Analysis of Financial Condition and Results of Operations                                                                   |  | 35  
|                               |  |                                                                                                                                                        
|Item 3                        |  | Quantitative and Qualitative Disclosures About Market Risk                                                                                              |  | 49  
|                               |  |                                                                                                                                                        
|Item 4                        |  | Controls and Procedures                                                                                                                                 |  | 50  
|                               | 
|PART II  OTHER INFORMATION    |  |                                                                                                                                                        
|                               |  |                                                                                                                                                        
|Item 1                        |  | Legal Proceedings                                                                                                                                       |  | 51  
|                               |  |                                                                                                                                                        
|Item 1A                       |  | Risk Factors                                                                                                                                            |  | 51  
|                               |  |                                                                                                                                                        
|Item 2                        |  | Unregistered Sales of Equity Securities and Use of Proceeds                                                                                             |  | 52  
|                               |  |                                                                                                                                                        
|Item 3                        |  | Defaults upon Senior Securities                                                                                                                         |  | 52  
|                               |  |                                                                                                                                                        
|Item 4                        |  | Submission of Matters to a Vote of Security Holders                                                                                                     |  | 52  
|                               |  |                                                                                                                                                        
|Item 5                        |  | Other Information                                                                                                                                       |  | 53  
|                               |  |                                                                                                                                                        
|Item 6                        |  | Exhibits                                                                                                                                                |  | 53  
|                               | 
|SIGNATURE                      |  | 55                                                                                                                                                     
|                               | 
|EXHIBIT INDEX                  |  | 56                                                                                                                                                     



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PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

WILLBROS GROUP, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share amounts)

(Unaudited)



|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ----------------- | ------- | - | ---------------- | - | ------- | -
|                                                                                                                                                                          |  | September 30,2006 |         |   | December 31,2005 |  
|ASSETS                                                                                                                                                                    |  |                   |         |   |                  |   |         |  
|Current assets:                                                                                                                                                           |  |                   |         |   |                  |   |         |  
|Cash and cash equivalents                                                                                                                                                 |  | $                 | 15,476  |   |                  | $ | 55,933  |  
|Restricted cash                                                                                                                                                           |  |                   | 1,500   |   |                  |   |        |  
|Accounts receivable, net                                                                                                                                                  |  |                   | 102,414 |   |                  |   | 83,986  |  
|Contract cost and recognized income not yet billed                                                                                                                        |  |                   | 14,963  |   |                  |   | 7,619   |  
|Prepaid expenses                                                                                                                                                          |  |                   | 16,291  |   |                  |   | 11,871  |  
|Parts and supplies inventories                                                                                                                                            |  |                   | 2,135   |   |                  |   | 2,509   |  
|Assets of discontinued operations                                                                                                                                         |  |                   | 285,729 |   |                  |   | 261,099 |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|Total current assets                                                                                                                                                      |  |                   | 438,508 |   |                  |   | 423,017 |  
|                                                                                                                                                                          |  |                  
|Deferred tax assets                                                                                                                                                       |  |                   | 3,700   |   |                  |   | 4,247   |  
|Property, plant and equipment, net                                                                                                                                        |  |                   | 66,467  |   |                  |   | 59,706  |  
|Goodwill                                                                                                                                                                  |  |                   | 6,894   |   |                  |   | 6,687   |  
|Other assets                                                                                                                                                              |  |                   | 9,027   |   |                  |   | 5,324   |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|Total assets                                                                                                                                                              |  | $                 | 524,596 |   |                  | $ | 498,981 |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|                                                                                                                                                                          |  |                  
|LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                      |  |                   |         |   |                  |   |         |  
|Current liabilities:                                                                                                                                                      |  |                   |         |   |                  |   |         |  
|Notes payable and current portion of long-term debt                                                                                                                       |  | $                 | 2,660   |   |                  | $ | 2,680   |  
|Accounts payable and accrued liabilities                                                                                                                                  |  |                   | 82,219  |   |                  |   | 67,582  |  
|Contract billings in excess of cost and recognized income                                                                                                                 |  |                   | 6,950   |   |                  |   | 1,342   |  
|Accrued income tax                                                                                                                                                        |  |                   | 783     |   |                  |   | 2,368   |  
|Liabilities of discontinued operations                                                                                                                                    |  |                   | 180,153 |   |                  |   | 144,085 |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|Total current liabilities                                                                                                                                                 |  |                   | 272,765 |   |                  |   | 218,057 |  
|2.75% Convertible senior notes                                                                                                                                            |  |                   | 70,000  |   |                  |   | 70,000  |  
|6.5% Senior convertible notes                                                                                                                                             |  |                   | 84,500  |   |                  |   | 65,000  |  
|Long-term debt                                                                                                                                                            |  |                   | 10,380  |   |                  |   | 340     |  
|Other liabilities                                                                                                                                                         |  |                   | 337     |   |                  |   | 350     |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|Total liabilities                                                                                                                                                         |  |                   | 437,982 |   |                  |   | 353,747 |  
|                                                                                                                                                                          |  |                  
|Contingencies and commitments (Note 10)                                                                                                                                   |  |                   |         |   |                  |   |         |  
|Stockholders equity:                                                                                                                                                     |  |                   |         |   |                  |   |         |  
|Class A preferred stock, par value $.01 per share, 1,000,000 shares authorized, none issued                                                                               |  |                   |        |   |                  |   |        |  
|Common stock, par value $.05 per share, 70,000,000 shares authorized (35,000,000 shares at December 31, 2005); 21,959,470 shares issued
(21,649,475 at December 31, 2005) |  |                   | 1,099   |   |                  |   | 1,082   |  
|Capital in excess of par value                                                                                                                                            |  |                   | 163,139 |   |                  |   | 161,596 |  
|Accumulated deficit                                                                                                                                                       |  |                   | (80,013 | ) |                  |   | (15,166 | )
|Treasury stock at cost, 155,916 shares (98,863 at December 31, 2005)                                                                                                      |  |                   | (1,960  | ) |                  |   | (1,163  | )
|Deferred compensation                                                                                                                                                     |  |                   |        |   |                  |   | (3,720  | )
|Notes receivable for stock purchases                                                                                                                                      |  |                   |        |   |                  |   | (231    | )
|Accumulated other comprehensive income                                                                                                                                    |  |                   | 4,349   |   |                  |   | 2,836   |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|Total stockholders equity                                                                                                                                                |  |                   | 86,614  |   |                  |   | 145,234 |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  
|Total liabilities and stockholders equity                                                                                                                                |  | $                 | 524,596 |   |                  | $ | 498,981 |  
|                                                                                                                                                                          |  |                   |         |   |                  |   |         |  

See accompanying notes to condensed consolidated financial statements.



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WILLBROS GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except share and per share amounts)

(Unaudited)



|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|------------------------------------------------------------------- |  | ------------------------------- | ---------- | - | ------------------------------ | - | ---------- | ---- |  | - | ---------- | - |  | - | ---------- | -
|                                                                    |  | Three MonthsEnded September 30, |            |   | Nine MonthsEnded September 30, |  
|                                                                    |  | 2006                            |            |   | 2005                           |   |            | 2006 |  |   | 2005       |  
|Contract revenue                                                    |  | $                               | 125,466    |   |                                | $ | 65,034     |      |  | $ | 352,181    |   |  | $ | 176,527    |  
|                                                                    |  |                                 |            |  
|Operating expenses:                                                 |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Contract                                                            |  |                                 | 113,418    |   |                                |   | 59,430     |      |  |   | 320,628    |   |  |   | 161,368    |  
|Depreciation and amortization                                       |  |                                 | 3,265      |   |                                |   | 2,996      |      |  |   | 9,180      |   |  |   | 8,547      |  
|General and administrative                                          |  |                                 | 11,092     |   |                                |   | 10,376     |      |  |   | 33,133     |   |  |   | 30,262     |  
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|                                                                    |  |                                 | 127,775    |   |                                |   | 72,802     |      |  |   | 362,941    |   |  |   | 200,177    |  
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Operating loss                                                      |  |                                 | (2,309     | ) |                                |   | (7,768     | )    |  |   | (10,760    | ) |  |   | (23,650    | )
|                                                                    |  |                                 |            |  
|Other income (expense):                                             |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Interest  net                                                      |  |                                 | (2,709     | ) |                                |   | (1,602     | )    |  |   | (6,132     | ) |  |   | (2,637     | )
|Other  net                                                         |  |                                 | 432        |   |                                |   | (674       | )    |  |   | 105        |   |  |   | 482        |  
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|                                                                    |  |                                 | (2,277     | ) |                                |   | (2,276     | )    |  |   | (6,027     | ) |  |   | (2,155     | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Loss from continuing operations before income taxes                 |  |                                 | (4,586     | ) |                                |   | (10,044    | )    |  |   | (16,787    | ) |  |   | (25,805    | )
|                                                                    |  |                                 |            |  
|Provision (benefit) for income taxes                                |  |                                 | 379        |   |                                |   | (1,094     | )    |  |   | 1,811      |   |  |   | (1,969     | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Net loss from continuing operations                                 |  |                                 | (4,965     | ) |                                |   | (8,950     | )    |  |   | (18,598    | ) |  |   | (23,836    | )
|                                                                    |  |                                 |            |  
|Loss from discontinued operations net of provision for income taxes |  |                                 | (17,136    | ) |                                |   | (8,603     | )    |  |   | (46,249    | ) |  |   | (13,534    | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Net loss                                                            |  | $                               | (22,101    | ) |                                | $ | (17,553    | )    |  | $ | (64,847    | ) |  | $ | (37,370    | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|                                                                    |  |                                 |            |  
|Basic loss per common share:                                        |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Loss from continuing operations                                     |  | $                               | (0.23      | ) |                                | $ | (0.42      | )    |  | $ | (0.87      | ) |  | $ | (1.12      | )
|Loss from discontinued operations                                   |  |                                 | (0.80      | ) |                                |   | (0.41      | )    |  |   | (2.15      | ) |  |   | (0.64      | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Net loss                                                            |  | $                               | (1.03      | ) |                                | $ | (0.83      | )    |  | $ | (3.02      | ) |  | $ | (1.76      | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|                                                                    |  |                                 |            |  
|Diluted loss per common share:                                      |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Loss from continuing operations                                     |  | $                               | (0.23      | ) |                                | $ | (0.42      | )    |  | $ | (0.87      | ) |  | $ | (1.12      | )
|Loss from discontinued operations                                   |  |                                 | (0.80      | ) |                                |   | (0.41      | )    |  |   | (2.15      | ) |  |   | (0.64      | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Net loss                                                            |  | $                               | (1.03      | ) |                                | $ | (0.83      | )    |  | $ | (3.02      | ) |  | $ | (1.76      | )
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|                                                                    |  |                                 |            |  
|Weighted average number of common shares outstanding:               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Basic                                                               |  |                                 | 21,557,695 |   |                                |   | 21,254,987 |      |  |   | 21,480,730 |   |  |   | 21,252,994 |  
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Diluted                                                             |  |                                 | 21,557,695 |   |                                |   | 21,254,987 |      |  |   | 21,480,730 |   |  |   | 21,252,994 |  
|                                                                    |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  

See accompanying notes to condensed consolidated financial statements.



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WILLBROS GROUP, INC.

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY

AND COMPREHENSIVE INCOME (LOSS)

(In thousands, except share amounts)

(Unaudited)



|                                        |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   |         |  
|--------------------------------------- |  | ------------ |  | ----------------------- | ----- | ----- | ------------- | ------- | ------- | -------- | - | ------- | ---------------- |  | ------ | ------------------------ | - | --------- | ---------------------------------------- | ------ | --------------------- |  | ------ | ---- | - |  | - | ----- |  | - | ------- | -
|                                        |  | Common Stock |  | Capitalin Excess of Par |       |       | Accumu- lated |         |         | Treasury |   |         | Deferred Compen- |  |        | NotesReceivablefor Stock |   |           | Accumulated Other Compre- hensive Income |        | Total Stock- holders | 
|                                        |  | Shares       |  | Par Value               |       | Value |               |         | Deficit |          |   | Stock   |                  |  | sation |                          |   | Purchases |                                          |        | (Loss)                |  | Equity |     
|Balance,                                |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   |         |  
|January 1, 2006                         |  | 21,649,475   |  | $                       | 1,082 |       | $             | 161,596 |         |          | $ | (15,166 | )                |  | $      | (1,163                   | ) |           | $                                        | (3,720 | )                     |  | $      | (231 | ) |  | $ | 2,836 |  | $ | 145,234 |  
|Comprehensive loss:                     |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   |         |  
|Net loss                                |  |             |  |                         |      |       |               |        |         |          |   | (64,847 | )                |  |        |                         |   |           |                                          |       |                       |  |        |     |   |  |   |      |  |   | (64,847 | )
|Foreign currency translation adjustment |  |             |  |                         |      |       |               |        |         |          |   |        |                  |  |        |                         |   |           |                                          |       |                       |  |        |     |   |  |   | 1,513 |  |   | 1,513   |  
|                                        |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   |         |  
|Total comprehensive loss                |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   | (63,334 | )
|Adoption of SFAS 123R                   |  |             |  |                         |      |       |               | (3,720  | )       |          |   |        |                  |  |        |                         |   |           |                                          | 3,720  |                       |  |        |     |   |  |   |      |  |   |        |  
|Amortization of note discount           |  |             |  |                         |      |       |               |        |         |          |   |        |                  |  |        |                         |   |           |                                          |       |                       |  |        | (12  | ) |  |   |      |  |   | (12     | )
|Stock received for note                 |  |             |  |                         |      |       |               |        |         |          |   |        |                  |  |        | (243                     | ) |           |                                          |       |                       |  |        | 243  |   |  |   |      |  |   |        |  
|Restricted stock grants                 |  | 90,000       |  |                         | 5     |       |               | (5      | )       |          |   |        |                  |  |        |                         |   |           |                                          |       |                       |  |        |     |   |  |   |      |  |   |        |  
|Compensation from share-based payments  |  |             |  |                         |      |       |               | 3,054   |         |          |   |        |                  |  |        |                         |   |           |                                          |       |                       |  |        |     |   |  |   |      |  |   | 3,054   |  
|Vesting of restricted stock rights      |  | 10,625       |  |                         | 1     |       |               | (1      | )       |          |   |        |                  |  |        |                         |   |           |                                          |       |                       |  |        |     |   |  |   |      |  |   |        |  
|Additions to treasury stock             |  |             |  |                         |      |       |               |        |         |          |   |        |                  |  |        | (554                     | ) |           |                                          |       |                       |  |        |     |   |  |   |      |  |   | (554    | )
|Exercise of stock options               |  | 209,370      |  |                         | 11    |       |               | 2,215   |         |          |   |        |                  |  |        |                         |   |           |                                          |       |                       |  |        |     |   |  |   |      |  |   | 2,226   |  
|                                        |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   |         |  
|Balance, September 30, 2006             |  | 21,959,470   |  | $                       | 1,099 |       | $             | 163,139 |         |          | $ | (80,013 | )                |  | $      | (1,960                   | ) |           | $                                        |       |                       |  | $      |     |   |  | $ | 4,349 |  | $ | 86,614  |  
|                                        |  |              |  |                         |       |       |               |         |         |          |   |         |                  |  |        |                          |   |           |                                          |        |                       |  |        |      |   |  |   |       |  |   |         |  

See accompanying notes to condensed consolidated financial statements.



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WILLBROS GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)



|                                                                                   |  |                                 |         |   |      |   |         |  
|---------------------------------------------------------------------------------- |  | ------------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                   |  | Nine Months Ended September 30, |        
|                                                                                   |  | 2006                            |         |   | 2005 |  
|Cash flows from operating activities:                                              |  |                                 |         |   |      |   |         |  
|Net loss                                                                           |  | $                               | (64,847 | ) |      | $ | (37,370 | )
|Reconciliation of net loss to net cash provided by (used in) operating activities: |  |                                 |         |   |      |   |         |  
|Loss from discontinued operations                                                  |  |                                 | 46,249  |   |      |   | 13,534  |  
|Depreciation and amortization                                                      |  |                                 | 9,180   |   |      |   | 8,547   |  
|Amortization of debt issue costs                                                   |  |                                 | 1,911   |   |      |   | 2,111   |  
|Amortization of deferred compensation                                              |  |                                 | 3,054   |   |      |   | 1,893   |  
|Amortization of discount on notes receivable for stock purchases                   |  |                                 | (12     | ) |      |   | (11     | )
|Gain on retirements of property, plant and equipment                               |  |                                 | (4,563  | ) |      |   | (885    | )
|Deferred income tax provision                                                      |  |                                 | 90      |   |      |   |        |  
|Equity in joint ventures                                                           |  |                                 | (753    | ) |      |   |        |  
|Changes in operating assets and liabilities:                                       |  |                                 |         |   |      |   |         |  
|Accounts receivable                                                                |  |                                 | (17,449 | ) |      |   | 2,598   |  
|Contract cost and recognized income not yet billed                                 |  |                                 | (7,344  | ) |      |   | (5,434  | )
|Prepaid expenses                                                                   |  |                                 | 5,055   |   |      |   | (2,134  | )
|Parts and supplies inventories                                                     |  |                                 | 224     |   |      |   | 69      |  
|Other assets                                                                       |  |                                 | (1,503  | ) |      |   | 169     |  
|Accounts payable and accrued liabilities                                           |  |                                 | 13,830  |   |      |   | 2,172   |  
|Accrued income tax                                                                 |  |                                 | (1,446  | ) |      |   | (2,975  | )
|Contract billings in excess of cost and recognized income                          |  |                                 | 5,604   |   |      |   | (1,204  | )
|Other liabilities                                                                  |  |                                 | 3       |   |      |   |        |  
|                                                                                   |  |                                 |         |   |      |   |         |  
|Cash used in operating activities of continuing operations                         |  |                                 | (12,717 | ) |      |   | (18,920 | )
|Cash provided by (used in) operating activities of discontinued operations         |  |                                 | (59,585 | ) |      |   | 5,908   |  
|                                                                                   |  |                                 |         |   |      |   |         |  
|Cash used in operating activities                                                  |  |                                 | (72,302 | ) |      |   | (13,012 | )
|Cash flows from investing activities:                                              |  |                                 |         |   |      |   |         |  
|Proceeds from sale of property, plant and equipment                                |  |                                 | 8,243   |   |      |   | 1,868   |  
|Increase in restricted cash                                                        |  |                                 | (1,500  | ) |      |   |        |  
|Purchases of property, plant and equipment                                         |  |                                 | (12,389 | ) |      |   | (14,663 | )
|                                                                                   |  |                                 |         |   |      |   |         |  
|Cash used in investing activities of continuing operations                         |  |                                 | (5,646  | ) |      |   | (12,795 | )
|Cash provided by (used in) investing activities of discontinued operations         |  |                                 | 29,891  |   |      |   | (13,811 | )
|                                                                                   |  |                                 |         |   |      |   |         |  
|Cash provided by (used in) investing activities                                    |  |                                 | 24,245  |   |      |   | (26,606 | )
|Cash flows from financing activities:                                              |  |                                 |         |   |      |   |         |  
|Proceeds from issuance of 6.5% senior convertible notes                            |  |                                 | 19,500  |   |      |   |        |  
|Proceeds from issuance of common stock                                             |  |                                 | 2,226   |   |      |   | 362     |  
|Repayment of notes payable                                                         |  |                                 | (9,385  | ) |      |   |        |  
|Costs of debt issues                                                               |  |                                 | (3,776  | ) |      |   | (21     | )
|Acquisition of treasury stock                                                      |  |                                 | (554    | ) |      |   | (231    | )
|Repayments of long-term debt                                                       |  |                                 | (134    | ) |      |   | (3,616  | )
|Payments on capital lease                                                          |  |                                 | (36     | ) |      |   | (409    | )
|Proceeds from notes payable                                                        |  |                                 |        |   |      |   | 779     |  
|                                                                                   |  |                                 |         |   |      |   |         |  
|Cash provided by (used in) financing activities of continuing operations           |  |                                 | 7,841   |   |      |   | (3,136  | )
|Cash provided by (used in) financing activities of discontinued operations         |  |                                 |        |   |      |   |        |  
|                                                                                   |  |                                 |         |   |      |   |         |  
|Cash provided by (used in) financing activities                                    |  |                                 | 7,841   |   |      |   | (3,136  | )



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##### Table of Contents

WILLBROS GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)

(In thousands)

(Unaudited)



|                                                                                      |  |                                 |         |   |      |   |         |  
|------------------------------------------------------------------------------------- |  | ------------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                      |  | Nine Months Ended September 30, |        
|                                                                                      |  | 2006                            |         |   | 2005 |  
|Effect of exchange rate changes on cash and cash equivalents                          |  | $                               | (241    | ) |      | $ | 475     |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|Cash used in all activities                                                           |  |                                 | (40,457 | ) |      |   | (42,279 | )
|Cash and cash equivalents, beginning of period                                        |  |                                 | 55,933  |   |      |   | 73,166  |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|Cash and cash equivalents, end of period                                              |  | $                               | 15,476  |   |      | $ | 30,887  |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|                                                                                      |  |                                
|Cash payments made during the period:                                                 |  |                                 |         |   |      |   |         |  
|Interest related to continuing operations                                             |  | $                               | 4,601   |   |      | $ | 2,341   |  
|Interest related to discontinued operations                                           |  |                                 |        |   |      |   | 43      |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|Total interest                                                                        |  | $                               | 4,601   |   |      | $ | 2,384   |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|Income taxes related to continuing operations                                         |  | $                               | 2,480   |   |      | $ | 786     |  
|Income taxes related to discontinued operations                                       |  |                                 | 8,310   |   |      |   | 9,099   |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|Total income taxes                                                                    |  | $                               | 10,790  |   |      | $ | 9,885   |  
|                                                                                      |  |                                 |         |   |      |   |         |  
|                                                                                      |  |                                
|Non-cash investing and financing transactions (all related to continuing operations): |  |                                 |         |   |      |   |         |  
|Prepaid insurance obtained by note payable                                            |  | $                               | 9,385   |   |      | $ |        |  
|Property obtained by capital lease                                                    |  | $                               | 11,635  |   |      | $ | 6,181   |  
|Settlement of officer note receivable for stock                                       |  | $                               | 243     |   |      | $ |        |  

See accompanying notes to condensed consolidated financial statements.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share amounts)

(Unaudited)

1. Basis of
Presentation

The preceding condensed consolidated balance sheet as of December 31, 2005, which has been derived from audited
consolidated financial statements, and the preceding unaudited interim condensed consolidated financial statements as of September 30, 2006, have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. As
of September 30, 2006, certain information and note disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to those rules and
regulations, although the Company believes that the disclosures made are adequate to make the information not misleading.

The unaudited
condensed consolidated financial statements of Willbros Group, Inc. and its majority-owned subsidiaries (the Company) reflect all adjustments (consisting of normal recurring adjustments) which are, in the opinion of management, necessary
to present fairly the financial position as of September 30, 2006, and the results of operations and cash flows of the Company for all interim periods presented.

These condensed consolidated financial statements should be read in conjunction with the Companys December 31, 2005 audited consolidated financial statements and notes thereto contained in the
Companys Annual Report on Form 10-K for the year ended December 31, 2005. The results of operations and cash flows for the nine-month period ended September 30, 2006 are not necessarily indicative of the operating results and cash
flows to be achieved for the full year.

The condensed consolidated financial statements include certain estimates and assumptions by
management. These estimates and assumptions relate to the reported amounts of assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expense during the periods. Significant items
subject to such estimates and assumptions include the carrying amount of property, plant and equipment, goodwill and parts and supplies inventories; quantification of amounts recorded for contingencies, tax accruals and certain other accrued
liabilities; valuation allowances for accounts receivable and deferred income tax assets; and revenue recognition under the percentage-of-completion method of accounting including estimates of progress toward completion and estimates of gross profit
or loss on contracts in progress. The Company bases its estimates on historical experience and other assumptions that it believes relevant under the circumstances. Actual results could differ from those estimates. Certain prior period amounts have
been reclassified to be consistent with current presentation.

As discussed in Note 2, the Company sold its TXP-4 Plant on January 12,
2006 and the majority of its Venezuela operations and assets on August 17, 2006. The remainder of the Venezuelan assets is expected to be sold during the fourth quarter of 2006. Additionally, the Company has its Nigeria operations and assets
for sale. Accordingly, these condensed consolidated financial statements reflect these operations as discontinued operations in all periods presented. The disclosures in the notes to the condensed consolidated financial statements relate to
continuing operations except as otherwise indicated.

Inventories, consisting of parts and supplies, are stated at the lower of cost or
market. Cost is determined using the first-in, first-out (FIFO) method. Parts and supplies inventories are evaluated at least annually and adjusted for excess and obsolescence. Parts and supplies are valued at the lower of cost or
market value, net of a reserve for obsolescence of $2,135 and $2,509 at September 30, 2006 and December 31, 2005, respectively. Using the same valuation and obsolescence policies as continuing operations, discontinued operations had parts
and supplies of $21,405 and $16,818 at September 30, 2006 and December 31, 2005, respectively.

Cash and cash equivalents
includes $15,000 of cash required as a minimum balance as stipulated by a waiver and amendment to the Companys 2004 Credit Facility (see Note 7). Additionally, the Company had $1,500 of restricted cash related to a funded letter of credit. As
of October 27, 2006, the letter of credit was replaced with a letter of credit from the new credit facility resulting in the $1,500 being no longer restricted.



8



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

2.
Discontinuance of Operations and Asset Disposal

Strategic Decisions

As part of the Companys ongoing strategic evaluation of operations, the following businesses have been discontinued: Nigeria, Venezuela, and the
TXP-4 Plant, collectively the Discontinued Operations, and accordingly, these businesses are presented as discontinued operations in the preceding condensed consolidated financial statements. The net assets and net liabilities related to
the Discontinued Operations are shown on the Condensed Consolidated Balance Sheets as components of Assets of discontinued operations and Liabilities of discontinued operations, respectively. The results of the Discontinued
Operations are shown on the Condensed Consolidated Statements of Operations as a component of Loss from discontinued operations net of provision for income taxes, for all periods shown.

The separate results of the Discontinued Operations, as well as a break down of the major classes of assets and liabilities included as part of
Discontinued Operations, are detailed in the subsequent tables.

Nigeria

An international investment bank has been engaged to sell the Companys Nigeria operations and assets. The process has identified several qualified
potential purchasers, and negotiations are in progress. At this time the Company is unable to determine the gain or loss upon the ultimate disposal of the Nigeria operations and assets. The Company expects to be able to reach an agreement on the
sale by the end of the first quarter of 2007 or shortly thereafter. Nigeria operations and assets were previously included in the Companys International segment.

As part of the sales process, the Company continues to evaluate the carrying value of the Nigeria assets and operations with respect to their estimated
market value. For the third quarter of 2006, the Company did not recognize an impairment of the Nigeria assets based upon this analysis. Any impairment would be included in the Loss from discontinued operations net of provision for income
taxes.

Venezuela

Asset disposal  On August 17, 2006 the Company entered into a Share Purchase Agreement with a Venezuelan company (the Buyer), pursuant to which the Company sold all of its membership interests
in Willbros (Barbados) Limited, Inc. (WBL), a wholly-owned subsidiary of the Company. WBL owns all of the assets and operations of the Company in Venezuela, with the exception of joint-venture interest in Harwat International Finance
Corporation NV (Harwat). The Company received cash payments of $7,000 for conveyance of WBL with no gain recognized subject to the pending sale discussed below. The Venezuela operations and assets were previously a component of the
Companys International segment.

Pending joint-venture interest disposal  As part of the Share Purchase Agreement, Buyer
has also agreed to buy the Companys 10% interest in Harwat. The sale of the Harwat interest is expected to be completed in the fourth quarter of 2006. The Company is scheduled to receive $3,300 in notes receivable from Buyer for the
Companys ownership interest in Harwat with a potential gain of $1,595 to be recognized contingent on collection of the notes receivable.

TXP-4 Plant

Asset disposal  On January 12, 2006, the Company entered into a Purchase Agreement
and Release with Williams Field Services Company (Williams), a wholly-owned subsidiary of The Williams Companies, Inc., pursuant to which the Company sold to Williams all of its membership interest in Opal TXP-4 Company, LLC, a
wholly-owned subsidiary of the Company (the LLC). The LLC owns a gas processing plant known as the TXP-4 Plant (the TXP-4 Plant) at Opal in Lincoln County, Wyoming, in addition to certain facilities, equipment and supplies
related to the TXP-4 Plant. Prior to the sale, the TXP-4 Plant was a component of the US & Canada segment. The Company received cash payments of $27,944 for conveyance of the LLC and realized a pre-tax gain of $2,033 and an after-tax
gain of $1,342.



9



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

2.
Discontinuance of Operations and Asset Disposal (continued)

The sale was effective at 12:01 a.m. Central Standard Time on
January 1, 2006. The only financial effect from the sale for the three or nine months ended September 30, 2006, is the gain on the sale, reflected as a component of the Loss from discontinued operations net of provision for income
taxes.

In addition to the cash payments described above, Williams agreed to pay the Company a portion of any recovery that Williams
may obtain in the future from third parties which is based on damages, loss or injury related to the TXP-4 Plant or the Jonah Dehy, up to $3,400. This settlement is contingent upon Williams recovery from various third parties and is the only
ongoing potential source of cash flows subsequent to the Purchase Agreement date. The timing and amount of any resolution to these claims cannot be estimated.

Contingencies, Commitments and Other Circumstances

At September 30, 2006 and December 31, 2005, other assets and
accounts receivable of the Discontinued Operations include anticipated recoveries from insurance or third parties of $300 and $4,656, respectively, primarily related to the repair of pipelines. The Company believes the recovery of these costs from
insurance or other parties is probable. Actual recoveries may vary from these estimates.

At September 30, 2006, the Company had
approximately $24,933 of letters of credit outstanding associated with Discontinued Operations representing the maximum amount of future payments the Company could be required to make. See Note 10 for additional information on letters of credit and
insurance bonds. The Company had no liability recorded as of September 30, 2006, related to these commitments.

Nigerian National Labor Contract

The previous Nigerian national labor contract covering approximately 1,600 National
laborers at the Companys Choba Site 1 facility expired in March 2006. A replacement agreement executed in May mistakenly included labor rate increases ranging between 300% to 350% which the labor union claims are binding upon the Company
notwithstanding the obvious mistake in fact and other legal deficiencies in the form and substance of the replacement agreement (the May Agreement). However, based upon opinions of legal counsel in Nigeria, for a variety of reasons the
Company believes the May Agreement is unenforceable in its current form and the Company and its legal counsel are pursuing measures to rectify the mistake and related deficiencies in the purported agreement, including, without limitation, through
negotiation, mediation, and judicial actions provided for under the labor laws of Nigeria. During this rectification process, however, the Company has voluntarily increased the labor rate by 20%. An accrued liability of $6,900 has been recorded at
September 30, 2006 to reflect the Companys current estimate of additional end-of-service costs attributable to reaching a mutually acceptable final form of labor agreement. Although the Company does not currently anticipate that the May
Agreement will be determined to be enforceable in its current mistaken form, should rectification of that agreement be unsuccessful through the labor relations and related legal processes now underway, a substantially greater monthly labor expense
would be incurred by the Company and an estimated additional $26,000 of end-of-service liability would result, making continued operations in Nigeria uneconomical. Also, this rectification process now underway by the Company has incited protests and
strikes from the rank and file workers covered by the May Agreement. The labor union has complained to national, local and regional politicians and the matter will soon be heard by the Labor Board to be resolved.

Joint Ventures

Venezuela

In connection with the Companys 10% interest in a joint venture in Venezuela, the Company issued a
corporate guarantee equal to 10% of the joint ventures outstanding borrowings with two banks. The guarantee decreases as borrowings are repaid. As of September 30, 2006, the maximum amount of future payments the Company could be required
to make under this guarantee is approximately $1,408. The Company anticipates its guarantee to the two banks would terminate with the closing of the sale of the Venezuelan operations and assets.

This obligation will be transferred to the Buyer in connection with the pending joint-venture investment disposal described above.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

2.
Discontinuance of Operations and Asset Disposal (continued)

Nigeria

Kanssen International Pipe Coating Services, Limited (Kanssen) and Willbros West Africa, Inc (WWAI) entered into an agreement to upgrade facilities at
the WWAI Choba location pipe coating facilities. The agreement was signed in June 2006 and included an installation of new concrete weight coating equipment furnished by Kanssen. The new agreement supersedes an existing memorandum of understanding
of October 14, 2005.

The new agreement updates the working arrangement between Kanssen and WWAI whereby each party participates in
the venture with a 50% interest. Kanssen will supply the equipment and WWAI will supply the plant building and facilities, and utilities. WWAI will be paid a management fee not to exceed 9% of revenue on each contract.

Results of Discontinued Operations

Statements of operations of Discontinued Operations are as follows:



|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|----------------------------- |  | ------------------------------------- | ------- | - | --------- | - | ---- | --------- |  | ----------------------- | ----- |  | - | ------- | -
|                              |  | Three Months Ended September 30, 2006 |        
|                              |  | Nigeria                               |         |   | Venezuela |   |      | OpalTXP-4 |  | Discontinued Operations |      
|Contract revenue              |  | $                                     | 102,304 |   |           | $ | 43   |           |  | $                       |      |  | $ | 102,347 |  
|Operating expenses:           |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Contract                      |  |                                       | 112,432 |   |           |   | 114  |           |  |                         |      |  |   | 112,546 |  
|Depreciation and amortization |  |                                       |        |   |           |   |     |           |  |                         |      |  |   |        |  
|General and administrative    |  |                                       | 7,184   |   |           |   | 46   |           |  |                         |      |  |   | 7,230   |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|                              |  |                                       | 119,616 |   |           |   | 160  |           |  |                         |      |  |   | 119,776 |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Operating loss                |  |                                       | (17,312 | ) |           |   | (117 | )         |  |                         |      |  |   | (17,429 | )
|Other income (expense)        |  |                                       | 3,478   |   |           |   | (1   | )         |  |                         |      |  |   | 3,477   |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Loss before income taxes      |  |                                       | (13,834 | ) |           |   | (118 | )         |  |                         |      |  |   | (13,952 | )
|Provision for income taxes    |  |                                       | 3,184   |   |           |   |     |           |  |                         |      |  |   | 3,184   |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Net loss                      |  | $                                     | (17,018 | ) |           | $ | (118 | )         |  | $                       |      |  | $ | (17,136 | )
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|                              | 
|                              |  | Three Months Ended September 30, 2005 |        
|                              |  | Nigeria                               |         |   | Venezuela |   |      | OpalTXP-4 |  | Discontinued Operations |      
|Contract revenue              |  | $                                     | 89,079  |   |           | $ | 147  |           |  | $                       | 4,587 |  | $ | 93,813  |  
|Operating expenses:           |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Contract                      |  |                                       | 83,041  |   |           |   | 425  |           |  |                         | 3,750 |  |   | 87,216  |  
|Depreciation and amortization |  |                                       | 2,125   |   |           |   | 149  |           |  |                         | 244   |  |   | 2,518   |  
|General and administrative    |  |                                       | 9,628   |   |           |   | 45   |           |  |                         |      |  |   | 9,673   |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|                              |  |                                       | 94,794  |   |           |   | 619  |           |  |                         | 3,994 |  |   | 99,407  |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Operating income (loss)       |  |                                       | (5,715  | ) |           |   | (472 | )         |  |                         | 593   |  |   | (5,594  | )
|Other income                  |  |                                       | 137     |   |           |   | 268  |           |  |                         |      |  |   | 405     |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Income (loss) before taxes    |  |                                       | (5,578  | ) |           |   | (204 | )         |  |                         | 593   |  |   | (5,189  | )
|Provision for income taxes    |  |                                       | 3,212   |   |           |   |     |           |  |                         | 202   |  |   | 3,414   |  
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  
|Net income (loss)             |  | $                                     | (8,790  | ) |           | $ | (204 | )         |  | $                       | 391   |  | $ | (8,603  | )
|                              |  |                                       |         |   |           |   |      |           |  |                         |       |  |   |         |  



11



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

2.
Discontinuance of Operations and Asset Disposal (continued)



|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|----------------------------- |  | ------------------------------------ | ------- | - | --------- | - | ------ | --------- |  | ----------------------- | ------ |  | - | ------- | -
|                              |  | Nine Months Ended September 30, 2006 |        
|                              |  | Nigeria                              |         |   | Venezuela |   |        | OpalTXP-4 |  | Discontinued Operations |       
|Contract revenue              |  | $                                    | 375,275 |   |           | $ | 257    |           |  | $                       |       |  | $ | 375,532 |  
|Operating expenses:           |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Contract                      |  |                                      | 372,487 |   |           |   | 562    |           |  |                         |       |  |   | 373,049 |  
|Depreciation and amortization |  |                                      | 3,607   |   |           |   | 378    |           |  |                         |       |  |   | 3,985   |  
|General and administrative    |  |                                      | 20,339  |   |           |   | 322    |           |  |                         |       |  |   | 20,661  |  
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|                              |  |                                      | 396,433 |   |           |   | 1,262  |           |  |                         |       |  |   | 397,695 |  
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Operating loss                |  |                                      | (21,158 | ) |           |   | (1,005 | )         |  |                         |       |  |   | (22,163 | )
|Other income (expense)        |  |                                      | (11,022 | ) |           |   | 164    |           |  |                         | 2,033  |  |   | (8,825  | )
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Income (loss) before taxes    |  |                                      | (32,180 | ) |           |   | (841   | )         |  |                         | 2,033  |  |   | (30,988 | )
|Provision for income taxes    |  |                                      | 14,427  |   |           |   | 143    |           |  |                         | 691    |  |   | 15,261  |  
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Net income (loss)             |  | $                                    | (46,607 | ) |           | $ | (984   | )         |  | $                       | 1,342  |  | $ | (46,249 | )
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|                              | 
|                              |  | Nine Months Ended September 30, 2005 |        
|                              |  | Nigeria                              |         |   | Venezuela |   |        | OpalTXP-4 |  | Discontinued Operations |       
|Contract revenue              |  | $                                    | 260,307 |   |           | $ | 324    |           |  | $                       | 17,487 |  | $ | 278,118 |  
|Operating expenses:           |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Contract                      |  |                                      | 230,020 |   |           |   | 1,094  |           |  |                         | 13,524 |  |   | 244,638 |  
|Depreciation and amortization |  |                                      | 6,020   |   |           |   | 451    |           |  |                         | 754    |  |   | 7,225   |  
|General and administrative    |  |                                      | 25,115  |   |           |   | 515    |           |  |                         |       |  |   | 25,630  |  
|Other operating expense       |  |                                      | 1,084   |   |           |   |       |           |  |                         |       |  |   | 1,084   |  
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|                              |  |                                      | 262,239 |   |           |   | 2,060  |           |  |                         | 14,278 |  |   | 278,577 |  
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Operating income (loss)       |  |                                      | (1,932  | ) |           |   | (1,736 | )         |  |                         | 3,209  |  |   | (459    | )
|Other income (expense)        |  |                                      | (794    | ) |           |   | 252    |           |  |                         |       |  |   | (542    | )
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Income (loss) before taxes    |  |                                      | (2,726  | ) |           |   | (1,484 | )         |  |                         | 3,209  |  |   | (1,001  | )
|Provision for income taxes    |  |                                      | 11,442  |   |           |   |       |           |  |                         | 1,091  |  |   | 12,533  |  
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  
|Net income (loss)             |  | $                                    | (14,168 | ) |           | $ | (1,484 | )         |  | $                       | 2,118  |  | $ | (13,534 | )
|                              |  |                                      |         |   |           |   |        |           |  |                         |        |  |   |         |  

During the three-month and nine-month periods ended September 30, 2006, the Company recorded
income taxes of $3,184 and $15,261, respectively, on losses before income taxes from discontinued operations of $13,952 and $30,988, respectively. During the three-month and nine-month periods ended September 30, 2005, the Company recorded a
provision for income taxes of $3,414 and $12,533, respectively, on losses before income taxes from discontinued operations of $5,189 and $1,001, respectively.

The circumstances that gave rise to the Company recording provisions for income taxes when the Company had losses before income taxes for the three and nine month periods ended September 30, 2006 and
September 30, 2005, is that Nigerian operations are generally subject to a deemed profits tax whereby tax liabilities are incurred based on revenue earned rather than taxable income.



12



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

2.
Discontinuance of Operations and Asset Disposal (continued)

Financial Position of Discontinued Operations

Balance sheets of Discontinued Operations are as follows:



|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|-------------------------------------------------- |  | ------------------ | ------- | --------- | - | --------- |  | ----------------------- | ------ |  | - | -------
|                                                   |  | September 30, 2006
|                                                   |  | Nigeria            |         | Venezuela |   | OpalTXP-4 |  | Discontinued Operations
|Current assets:                                    |  |                    |         |           |   |           |  |                         |        |  |   |        
|Cash and cash equivalents                          |  | $                  | 21,857  |           | $ |          |  | $                       |       |  | $ | 21,857 
|Accounts receivable, net                           |  |                    | 113,231 |           |   |          |  |                         |       |  |   | 113,231
|Contract cost and recognized income not yet billed |  |                    | 63,403  |           |   |          |  |                         |       |  |   | 63,403 
|Prepaid expenses                                   |  |                    | 13,914  |           |   |          |  |                         |       |  |   | 13,914 
|Parts and supplies inventories                     |  |                    | 21,405  |           |   |          |  |                         |       |  |   | 21,405 
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Total current assets                               |  |                    | 233,810 |           |   |          |  |                         |       |  |   | 233,810
|Property, plant and equipment, net                 |  |                    | 47,850  |           |   |          |  |                         |       |  |   | 47,850 
|Investments in joint ventures                      |  |                    |        |           |   | 3,465     |  |                         |       |  |   | 3,465  
|Other assets                                       |  |                    | 604     |           |   |          |  |                         |       |  |   | 604    
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Total assets                                       |  |                    | 282,264 |           |   | 3,465     |  |                         |       |  |   | 285,729
|Current liabilities                                |  |                    | 180,153 |           |   |          |  |                         |       |  |   | 180,153
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Total liabilities                                  |  |                    | 180,153 |           |   |          |  |                         |       |  |   | 180,153
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Net assets of discontinued operations              |  | $                  | 102,111 |           | $ | 3,465     |  | $                       |       |  | $ | 105,576
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|                                                   | 
|                                                   |  | December 31, 2005 
|                                                   |  | Nigeria            |         | Venezuela |   | OpalTXP-4 |  | Discontinued Operations
|Current assets:                                    |  |                    |         |           |   |           |  |                         |        |  |   |        
|Cash and cash equivalents                          |  | $                  | 9,514   |           | $ | 134       |  | $                       |       |  | $ | 9,648  
|Accounts receivable, net                           |  |                    | 93,667  |           |   |          |  |                         |       |  |   | 93,667 
|Contract cost and recognized income not yet billed |  |                    | 36,392  |           |   | 32        |  |                         |       |  |   | 36,424 
|Prepaid expenses                                   |  |                    | 14,716  |           |   | 163       |  |                         |       |  |   | 14,879 
|Parts and supplies inventories                     |  |                    | 16,818  |           |   |          |  |                         |       |  |   | 16,818 
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Total current assets                               |  |                    | 171,107 |           |   | 329       |  |                         |       |  |   | 171,436
|Property, plant and equipment, net                 |  |                    | 52,200  |           |   | 4,354     |  |                         |       |  |   | 56,554 
|Asset held for sale                                |  |                    |        |           |   |          |  |                         | 23,049 |  |   | 23,049 
|Investments in joint ventures                      |  |                    |        |           |   | 3,961     |  |                         |       |  |   | 3,961  
|Deferred tax assets                                |  |                    |        |           |   | 693       |  |                         |       |  |   | 693    
|Other assets                                       |  |                    | 5,256   |           |   | 150       |  |                         |       |  |   | 5,406  
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Total assets                                       |  |                    | 228,563 |           |   | 9,487     |  |                         | 23,049 |  |   | 261,099
|Current liabilities                                |  |                    | 142,171 |           |   | 498       |  |                         |       |  |   | 142,669
|Other liabilities                                  |  |                    |        |           |   | 536       |  |                         | 880    |  |   | 1,416  
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Total liabilities                                  |  |                    | 142,171 |           |   | 1,034     |  |                         | 880    |  |   | 144,085
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        
|Net assets of discontinued operations              |  | $                  | 86,392  |           | $ | 8,453     |  | $                       | 22,169 |  | $ | 117,014
|                                                   |  |                    |         |           |   |           |  |                         |        |  |   |        



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

3.
Stock-Based Compensation

The information contained in this note pertains to continuing and discontinued operations.

The Company has three stock ownership plans under which awards were or may be granted to employees and outside directors in the form of non-qualified
stock options, incentive stock options, restricted shares and restricted rights. The options granted to employees under the Willbros stock ownership plans generally vest over four years and expire after ten years. Options granted to outside
directors vest six months after the date of grant and expire after ten years. All restricted stock grants and restricted stock rights, also described collectively as restricted stock units (RSUs), granted to employees have service
conditions and vest in installments over periods of up to five years. Restricted stock granted to outside directors vests one year after the date of grant. Shares of common stock reserved for future grants under the plans were 980,558 at
September 30, 2006.

Effective January 1, 2006, the Company adopted the fair value recognition provisions of Statement of
Financial Accounting Standards (SFAS) No. 123R using the modified prospective application method. Under this method, compensation cost recognized in the three-month and nine-month periods ended September 30, 2006 includes the
applicable amounts of: (a) compensation expense of all share-based payments granted prior to, but not yet vested as of, January 1, 2006 (based on the grant-date fair value estimated in accordance with the original provisions of SFAS
No. 123, Accounting for Stock-Based Compensation, and previously presented in the pro forma footnote disclosures in the Companys SEC reports), and (b) compensation cost for all share-based payments granted subsequent to
January 1, 2006 (based on the grant-date fair value estimated in accordance with the provisions of SFAS No. 123R). The Company uses the Black-Scholes valuation method to determine the fair value of stock options granted as of the grant
date. Results for prior periods have not been adjusted.

The following table summarizes the impact of recognizing compensation expense
related to stock options using the fair value recognition provisions of SFAS No. 123R for the three-month and nine-month periods ended September 30, 2006:



|                                   |  |                                     |     |   |                                    |   |       |  
|---------------------------------- |  | ----------------------------------- | --- | - | ---------------------------------- | - | ----- | -
|                                   |  | Three Months EndedSeptember 30,2006 |     |   | Nine Months EndedSeptember 30,2006 |  
|Share-based salaries and wages     |  | $                                   | (54 | ) |                                    | $ | (325  | )
|Less: income taxes                 |  |                                     |    |   |                                    |   |      |  
|                                   |  |                                     |     |   |                                    |   |       |  
|Increase in net loss               |  | $                                   | (54 | ) |                                    | $ | (325  | )
|                                   |  |                                     |     |   |                                    |   |       |  
|Increase in basic loss per share   |  | $                                   |    |   |                                    | $ | (0.02 | )
|                                   |  |                                     |     |   |                                    |   |       |  
|Increase in diluted loss per share |  | $                                   |    |   |                                    | $ | (0.02 | )
|                                   |  |                                     |     |   |                                    |   |       |  

Share-based compensation related to RSUs is recorded based on the Companys stock price
as of the grant date. Recognition of share-based compensation related to RSUs was not impacted by the adoption of SFAS No. 123R. Expense from both stock options and RSUs totaled $1,186 and $3,054, respectively, for the three-month
and nine-month periods ended September 30, 2006. The Company had no tax benefits related to either stock options or RSUs during the three-month and nine-month periods ended September 30, 2006.

Prior to January 1, 2006, the Company accounted for awards granted under the incentive plans following the recognition and measurement principles of
Accounting Principles Board (APB) Opinion 25, Accounting for Stock Issued to Employees, and related Interpretations, as permitted by SFAS No. 123. Because it is the Companys policy to grant stock options at the
market price on the date of grant, the intrinsic value of these grants was zero and, therefore, no compensation expense was recorded. Under the modified prospective application method, results for prior periods have not been adjusted to reflect the
effects of implementing SFAS No. 123R. The following pro forma information is presented for comparative purposes and illustrates the pro forma effect on net loss and net loss per share for the three-month and nine-month periods ended
September 30, 2005, as if the Company had applied the fair value recognition provisions of SFAS No. 123 to share-based compensation prior to January 1, 2006:



14



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

3.
Stock-Based Compensation (continued)



|                                                                           |  |                                                |         |   |                                               |   |         |  
|-------------------------------------------------------------------------- |  | ---------------------------------------------- | ------- | - | --------------------------------------------- | - | ------- | -
|                                                                           |  | Pro Forma Three MonthsEnded September 30, 2005 |         |   | Pro Forma Nine MonthsEnded September 30, 2005 |  
|Net loss, as reported                                                      |  | $                                              | (17,553 | ) |                                               | $ | (37,370 | )
|Add: stock-based employee compensation included in net loss                |  |                                                | 706     |   |                                               |   | 1,964   |  
|Less: stock-based employee compensation determined under fair value method |  |                                                | (783    | ) |                                               |   | (2,121  | )
|                                                                           |  |                                                |         |   |                                               |   |         |  
|Net loss, pro forma                                                        |  | $                                              | (17,630 | ) |                                               | $ | (37,527 | )
|                                                                           |  |                                                |         |   |                                               |   |         |  
|Per share amounts:                                                         |  |                                                |         |   |                                               |   |         |  
|Basic net loss per share, as reported                                      |  | $                                              | (0.83   | ) |                                               | $ | (1.76   | )
|                                                                           |  |                                                |         |   |                                               |   |         |  
|Basic net loss per share, pro forma                                        |  | $                                              | (0.83   | ) |                                               | $ | (1.77   | )
|                                                                           |  |                                                |         |   |                                               |   |         |  
|Diluted net loss per share, as reported                                    |  | $                                              | (0.83   | ) |                                               | $ | (1.76   | )
|                                                                           |  |                                                |         |   |                                               |   |         |  
|Diluted net loss per share, pro forma                                      |  | $                                              | (0.83   | ) |                                               | $ | (1.77   | )
|                                                                           |  |                                                |         |   |                                               |   |         |  

The fair values of stock options granted during the nine-month periods ended September 30,
2006 and 2005, were estimated using the Black-Scholes valuation method with the weighted average assumptions listed below:



|                                       |  |                                     |       |     |                                     |   |       |    
|-------------------------------------- |  | ----------------------------------- | ----- | --- | ----------------------------------- | - | ----- | ---
|                                       |  | Nine MonthsEnded September 30, 2006 |       |     | Nine MonthsEnded September 30, 2005 |  
|Weighted average grant date fair value |  | $                                   | 6.72  |     |                                     | $ | 6.75  |    
|Weighted average assumptions used:     |  |                                     |       |     |                                     |   |       |    
|Expected volatility                    |  |                                     | 45.66 | %   |                                     |   | 43.61 | %  
|Expected lives                         |  |                                     | 3.46  | yrs |                                     |   | 3.00  | yrs
|Risk-free interest rates               |  |                                     | 4.66  | %   |                                     |   | 2.28  | %  
|Expected dividend yield                |  |                                     | 0.00  | %   |                                     |   | 0.00  | %  

Volatility is calculated using an analysis of historical volatility. The Company believes that the
historical volatility of the Companys stock is the best method for estimating future volatility. The expected lives of options are determined based on the Companys historical share option exercise experience. The Company believes the
historical experience method is the best estimate of future exercise patterns currently available. The risk-free interest rates are determined using the implied yield currently available for zero-coupon U.S. government issues with a remaining term
equal to the expected life of the options.

Stock option activity for the nine months ended September 30, 2006, consists of:



|                                  |  |                  |   |  |                                 |      
|--------------------------------- |  | ---------------- | - |  | ------------------------------- | -----
|                                  |  | Numberof Options |   |  | Weighted Average Exercise Price
|Outstanding at January 1, 2006    |  | 887,270          |   |  | $                               | 11.76
|Granted                           |  | 180,000          |   |  |                                 | 17.44
|Exercised                         |  | (209,370         | ) |  |                                 | 10.63
|Forfeited                         |  | (24,000          | ) |  |                                 | 13.13
|                                  |  |                  |   |  |                                 |      
|Outstanding at September 30, 2006 |  | 833,900          |   |  | $                               | 13.23
|                                  |  |                  |   |  |                                 |      
|Exercisable at September 30, 2006 |  | 668,900          |   |  | $                               | 12.30
|                                  |  |                  |   |  |                                 |      



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

3.
Stock-Based Compensation (continued)

As of September 30, 2006, the aggregate intrinsic value of stock options outstanding and
stock options exercisable was $2,481 and $2,364, respectively. The weighted average remaining contractual term of the exercisable options is 4.9 years at September 30, 2006. During the nine months ended September 30, 2006, the total
intrinsic value of options exercised was $2,174. There was no tax benefit realized related to those exercises.

Activity related to
RSUs for the nine months ended September 30, 2006, is summarized in the following table:



|                                  |  |                 |   |  |                                        |      
|--------------------------------- |  | --------------- | - |  | -------------------------------------- | -----
|                                  |  | Number of RSUs |   |  | Weighted Average Grant-Date Fair Value
|Outstanding at January 1, 2006    |  | 441,375         |   |  | $                                      | 19.61
|Granted                           |  | 140,000         |   |  |                                        | 18.38
|Vested, shares released           |  | (123,875        | ) |  |                                        | 17.87
|Forfeited                         |  | (9,375          | ) |  |                                        | 17.33
|                                  |  |                 |   |  |                                        |      
|Outstanding at September 30, 2006 |  | 448,125         |   |  | $                                      | 19.75
|                                  |  |                 |   |  |                                        |      

The RSUs outstanding at September 30, 2006 include 41,666 RSUs which are vested
but have a deferred share issuance date.

As of September 30, 2006, there was a total of $5,818 of unrecognized compensation costs,
net of estimated forfeitures, related to all non-vested share-based compensation arrangements granted in the Companys incentive plans. That cost is expected to be recognized over a weighted-average period of 1.43 years.

4. New Accounting Pronouncements

SAB No. 108

In September 2006, the Securities and Exchange Commission (SEC) issued Staff Accounting Bulletin No. 108,
Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements (SAB 108). SAB 108 provides interpretive guidance on how the effects of the carryover or
reversal of prior year misstatements should be considered in quantifying a current year misstatement. The SEC staff believes that companies should quantify errors using both a balance sheet and an income statement approach and evaluate whether
either approach results in quantifying a misstatement that, when all relevant quantitative and qualitative factors are considered, is material. SAB 108 is effective for the Companys fiscal year ending December 31, 2006. The adoption of
SAB 108 will only impact the Companys consolidated financial statements if the Company has misstatements in the future.

FIN No. 48

In June 2006, the Financial Accounting Standards Board (FASB) issued FASB Interpretation No. 48, Accounting for
Uncertainty in Income Taxes, (FIN 48) an interpretation of Statement of Financial Accounting Standards (SFAS) No. 109, Accounting for Income Taxes. This interpretation clarifies the accounting for
uncertainty in income taxes recognized in an enterprises financial statements in accordance with SFAS Statement No. 109. The interpretation prescribes a recognition threshold and measurement attribute for a tax position taken or expected
to be taken in a tax return and also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. The provisions of FIN 48 are effective for fiscal years beginning after
December 31, 2006. The Company is currently evaluating what impact, if any, this statement will have on its financial statements.



16



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

4. New
Accounting Pronouncements (continued)

SFAS No. 123R

In December 2004, the FASB issued SFAS No. 123R, Share-Based Payments. This standard requires expensing of stock options and other share-based payments and supersedes SFAS No. 123, which had
allowed companies to choose between expensing stock options or showing pro forma disclosure only. SFAS No. 123R eliminates the alternative of applying the intrinsic value measurement provisions of APB Opinion No. 25 to stock compensation
awards issued to employees. Rather, the new standard requires a company to measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award. This standard is effective for
annual reporting periods beginning after June 30, 2005 and will apply to all awards granted, modified, cancelled or repurchased after that date, as well as the unvested portion of prior awards. The Company adopted the standard as of
January 1, 2006 on a modified prospective application basis. The standard did not have a material impact on the Companys financial statements (see Note 3).

SFAS No. 151

In November 2004, the FASB issued SFAS No. 151, Inventory Costs,
an amendment of Accounting Research Bulletin (ARB) No. 43, Chapter 4. This statement clarifies the types of costs that should be expensed rather than capitalized as inventory. This statement also clarifies the circumstances under
which fixed overhead costs associated with operating facilities involved in inventory processing should be capitalized. Since the Companys international construction generally occurs in remote locations, making timely outside delivery
uncertain, parts and supplies are maintained either at the work site or in warehouses close to the operation. During periods of high utilization, parts and supplies are generally consumed and replenished within a one-year period. During a period of
lower utilization in a particular location, the parts and supplies are generally not transferred to other international locations until new contracts are obtained because of the significant transportation costs which would result from such
transfers. The Company adopted the standard as of January 1, 2006, and the standard did not have a material impact on its financial statements.

SFAS No. 154

In May 2005, the FASB issued SFAS No. 154, Accounting Changes and Error Corrections
(SFAS No. 154) to replace Accounting Principles Board Opinion No. 20 and SFAS No. 3. This statement requires retroactive application of a change in accounting principle to prior years financial statements unless it
is impracticable to determine the period-specific effects or the cumulative effect of a change. The provisions of SFAS No. 154 are effective for accounting changes and corrections of errors made in fiscal years beginning after December 15,
2005. Since the adoption of SFAS No. 154 at January 1, 2006, the Company has had no changes in accounting principle requiring retrospective application.

SFAS No. 155

In February 2006, the FASB issued SFAS No. 155, Accounting for Certain Hybrid Financial
Instruments, (SFAS No. 155) which amends SFAS No.133, Accounting for Derivative Instruments and Hedging Activities (SFAS No. 133) and SFAS No.140, Accounting for
Transfers and Servicing of Financial Assets and Extinguishments of Liabilities (SFAS No. 140). SFAS No. 155 simplifies the accounting for certain derivatives embedded in other financial instruments by allowing them to be
accounted for as a whole if the holder elects to account for the whole instrument on a fair value basis. SFAS No.155 also clarifies and amends certain other provisions of SFAS No. 133 and SFAS No. 140. SFAS No. 155 is effective for
all financial instruments acquired, issued or subject to a re-measurement event occurring in fiscal years beginning after September 15, 2006. Earlier adoption is permitted, provided the Company has not yet issued financial statements, including
for interim periods, for that fiscal year. The Company adopted the standard as of January 1, 2006, and the standard did not have a material impact on its financial statements.

SFAS No. 157

In September 2006, the FASB issued SFAS No. 157, Fair Value
Measurements (SFAS No. 157). SFAS No. 157 clarifies the principle that fair value should be based on the assumptions market participants would use when pricing an asset or liability and establishes a fair value hierarchy
that prioritizes the information used



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

4. New
Accounting Pronouncements (continued)

to develop those assumptions. SFAS No. 157 is effective for the Companys fiscal year beginning
January 1, 2007. The Company is currently evaluating what impact, if any, this statement will have on its financial statements.

FASB Staff
Position (FSP) No. AUG AIR-1

On September 7, 2006 the FASB issued this amendment to certain provisions in the American
Institute of Certified Public Accountants (the AICPA) Industry Guide, Audits of Airlines,and Accounting Principles Board Opinion (APB) Opinion No. 28, Interim Financial Reporting. This FSP prohibits
the use of the accrue-in-advance method of accounting for planned major maintenance activities in annual and interim financial reporting periods. The guidance in this FSP shall be applied to the first fiscal year beginning after December 15,
2006. The Company intends to adopt this standard for the fiscal year beginning January 1, 2007 and the Company expects no impact at that time. The Company is analyzing the potential impact to retrospective periods.

Historically the Company has employed the accrue-in-advance method of accounting for the major planned maintenance of Company owned vessels used in
marine pipeline construction and maintenance as part of its Nigeria assets and operations. Major planned maintenance typically included dry-dock work to obtain ocean going certification every three and five year interval. Because of the held for
sale nature of the Companys assets in Nigeria the accrued major maintenance costs were eliminated in the third quarter of 2006. This review led the Company to relieve these liabilities as it was determined that the Company would not own the
vessels when their next three and five year major planned maintenance activities were due. This reduced the contract costs of the Companys operations in Nigeria by $2,100.

5. Foreign Exchange Risk

The Company attempts to negotiate contracts which provide for payment in
U.S. dollars, but it may be required to take all or a portion of payment under a contract in another currency. To mitigate non-U.S. currency exchange risk, the Company seeks to match anticipated non-U.S. currency revenue with expenses in the same
currency whenever possible. To the extent it is unable to match non-U.S. currency revenue with expenses in the same currency, the Company may use forward contracts, options or other common hedging techniques in the same non-U.S. currencies. The
Company had no derivative financial instruments to hedge currency risk at September 30, 2006 or December 31, 2005.

6. Income Taxes

During the three-month and nine-month periods ended September 30, 2006, the Company recorded income taxes of $379 and $1,811,
respectively, on losses before income taxes from continuing operations of $4,586 and $16,787, respectively. During the three-month and nine-month periods ended September 30, 2005, the Company recorded a benefit for income taxes of $1,094 and
$1,969, respectively, on losses before income taxes from continuing operations of $10,044 and $25,805, respectively.

The circumstances
that gave rise to the Company recording provisions for income taxes when the Company had losses before income taxes for the three and nine month periods ended September 30, 2005 and September 30, 2006, are operations in the United States,
Canada, and Oman generate taxable income and thus generate tax liabilities in each of those separate tax jurisdictions. Moreover, transfer pricing principles require the Company to allocate expenses to certain subsidiaries, receiving the benefit of
such expenses. Some tax jurisdictions either do not allow tax deductions or there is no tax benefit derived from expenses allocated to these subsidiaries.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

7.
Long-Term Debt

Long-term debt consists of the following:



|                               |  |                    |         |   |                   |   |         |  
|------------------------------ |  | ------------------ | ------- | - | ----------------- | - | ------- | -
|                               |  | September 30, 2006 |         |   | December 31, 2005 |  
|2.75% Convertible senior notes |  | $                  | 70,000  |   |                   | $ | 70,000  |  
|6.5% Senior convertible notes  |  |                    | 84,500  |   |                   |   | 65,000  |  
|Capital lease obligation       |  |                    | 10,187  |   |                   |   |        |  
|Other obligations              |  |                    | 2,853   |   |                   |   | 3,020   |  
|                               |  |                    |         |   |                   |   |         |  
|Total debt                     |  |                    | 167,540 |   |                   |   | 138,020 |  
|Less: current portion          |  |                    | (2,660  | ) |                   |   | (2,680  | )
|                               |  |                    |         |   |                   |   |         |  
|Total long-term debt           |  | $                  | 164,880 |   |                   | $ | 135,340 |  
|                               |  |                    |         |   |                   |   |         |  

2.75% Convertible Senior Notes

On March 12, 2004, the Company completed a primary offering of $60,000 of 2.75% Convertible Senior Notes (the 2.75% Notes). On
April 13, 2004, the initial purchasers of the 2.75% Notes exercised their option to purchase an additional $10,000 aggregate principal amount of the notes. Collectively, the primary offering and purchase option of the 2.75% Notes totaled
$70,000. The 2.75% Notes are general senior unsecured obligations. Interest is paid semi-annually on March 15 and September 15 and payments began on September 15, 2004. The 2.75% Notes mature on March 15, 2024 unless the notes
are repurchased, redeemed or converted earlier. The Company may redeem the 2.75% Notes for cash on or after March 15, 2011, at 100% of the principal amount of the notes plus accrued interest. The holders of the 2.75% Notes have the right to
require the Company to purchase the 2.75% Notes, including unpaid interest, on March 15, 2011, 2014, and 2019 or upon a change of control related event. On March 15, 2011 or upon a change in control event, the Company must pay the purchase
price in cash. On March 15, 2014 and 2019, the Company has the option of providing its common stock in lieu of cash or a combination of common stock and cash to fund purchases. The holders of the 2.75% Notes may, under certain circumstances,
convert the notes into shares of the Companys common stock at an initial conversion ratio of 51.3611 shares of common stock per $1,000.00 principal amount of notes (representing a conversion price of approximately $19.47 per share resulting in
3,595,277 shares issuable at September 30, 2006, subject to adjustment in certain circumstances). The notes will be convertible only upon the occurrence of certain specified events including, but not limited to, if, at certain times, the
closing sale price of the Companys common stock exceeds 120% of the then current conversion price, or $23.36 per share, based on the initial conversion price. In the event of a default under any Company credit agreement other than the
indenture covering the 2.75% Notes, (1) in which the Company fails to pay principal or interest on indebtedness with an aggregate principal balance of $10,000 or more; or (2) in which indebtedness with a principal balance of $10,000 or
more is accelerated, an event of default would result under the 2.75% Notes. Since the non-compliance issue under the 2004 Credit Facility discussed below did not involve payment defaults and did not result in the acceleration of any indebtedness of
the Company, these defaults did not create an event of default under the 2.75% Notes.

On September 22, 2005, the Company entered into
an amendment of the indenture covering the 2.75% Notes (the Indenture Amendment). The Indenture Amendment extended the initial date on or after which the 2.75% Notes may be redeemed by the Company to March 15, 2013 from
March 15, 2011. In addition, a new provision was added to such indenture which requires the Company, in the event of a Fundamental change which is a change of control event in which 10% or more of the consideration in the
transaction consists of cash, to make a coupon make-whole payment equal to the present value (discounted at the U.S. Treasury rate) of the lesser of (a) two years of scheduled payments of interest on the 2.75% Notes or
(b) all scheduled interest on the 2.75% Notes from the date of the transaction through March 15, 2013. Unamortized debt issue costs of $2,398 and $2,714 associated with the 2.75% Notes are included in other assets at September 30,
2006 and December 31, 2005, respectively, and are being amortized over the seven-year period ending March 2011.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

7.
Long-Term Debt (continued)

6.5% Senior Convertible Notes

On December 22, 2005, the Company entered into a purchase agreement (the Purchase Agreement) for a private placement of $65,000 aggregate principal amount of its 6.5% Senior Convertible Notes due 2012
(the 6.5% Notes). The private placement closed on December 23, 2005. During the first quarter of 2006, the initial purchasers of the 6.5% Notes exercised their options to purchase an additional $19,500 of the 6.5% Notes bringing the
aggregate principal amount of the 6.5% Notes to $84,500. The net proceeds of the offering were used to retire existing indebtedness and provide additional liquidity to support working capital needs.

The 6.5% Notes are governed by an Indenture dated December 23, 2005 and were entered into by and among the Company, as issuer, Willbros USA, Inc.,
as guarantor (WUSAI), and The Bank of New York, as Trustee (the Indenture), and were issued under the Purchase Agreement in a transaction exempt from the registration requirements of the Securities Act of 1933, as amended
(the Securities Act). The 6.5% Notes are convertible into shares of the Companys common stock at a conversion rate of 56.9606 shares of common stock per $1,000.00 principal amount of notes (representing a conversion price of
approximately $17.56 per share resulting in 4,813,171 shares issuable at September 30, 2006, subject to adjustment in certain circumstances). Pursuant to the Purchase Agreement, the Company and WUSAI have agreed to indemnify the Purchasers,
their affiliates and agents, against certain liabilities, including liabilities under the Securities Act.

The 6.5% Notes mature on
December 15, 2012 unless the notes are repurchased or converted earlier. The Company does not have the right to redeem the 6.5% Notes. The holders of the 6.5% Notes have the right to require the Company to purchase the 6.5% Notes for cash,
including unpaid interest, on December 15, 2010. The holders of the 6.5% Notes also have the right to require the Company to purchase the 6.5% Notes for cash upon the occurrence of a Fundamental change, as defined in the Indenture, for 110% of
the principal amount if the Fundamental change occurs prior to December 31, 2006, and for 100% of the principal amount if the Fundamental change occurs after that date. In addition to the amounts described above, the Company will be required to
pay a make-whole premium to the holders of the 6.5% Notes who elect to convert their notes into the Companys common stock in connection with the Fundamental change. The make-whole premium is payable in additional shares of
common stock and is calculated based on a formula with the premium ranging from 0% to 31.4% depending on when the Fundamental change occurs and the price of the Companys stock at the time the Fundamental change occurs.

Upon conversion of the 6.5% Notes, the Company has the right to deliver, in lieu of shares of its common stock, cash or a combination of cash and shares
of its common stock. Under the Indenture, the Company is required to notify holders of the 6.5% Notes of its method for settling the principal amount of the 6.5% Notes upon conversion. This notification, once provided, is irrevocable and legally
binding upon the Company with regard to any conversion of the 6.5% Notes. On March 21, 2006, the Company notified holders of the 6.5% Notes of its election to satisfy its conversion obligation with respect to the principal amount of any 6.5%
Notes surrendered for conversion by paying the holders of such surrendered 6.5% Notes 100% of the principal conversion obligation in the form of common stock of the Company. Until the 6.5% Notes are surrendered for conversion, the Company will not
be required to notify holders of its method for settling the excess amount of the conversion obligation relating to the amount of the conversion value above the principal amount, if any. In the event of a default of $10,000 or more on any credit
agreement, including the 2004 Credit Facility and the 2.75% Notes, a corresponding event of default would result under the 6.5% Notes. Since the non-compliance issue under the 2004 Credit Facility discussed below did not involve payment defaults and
did not result in acceleration of any indebtedness of the Company, these defaults did not create an event of default under the 6.5% Notes.

Unamortized debt issue costs of $4,061 and $698 associated with the 6.5% Notes are included in other assets at September 30, 2006 and December 31, 2005, respectively, and are being amortized over the seven-year period ending
December 2012.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

7.
Long-Term Debt (continued)

2004 Credit Facility

On March 12, 2004, the existing $125,000 June 2002 credit agreement was amended, restated and increased to $150,000 (the 2004 Credit Facility). The 2004 Credit Facility matures with Calyon New York
Branch (Calyon) on March 12, 2007. The 2004 Credit Facility may be used for standby and commercial letters of credit, borrowings or a combination thereof. Borrowings are limited to the lesser of 40% of the borrowing base or $30,000
and are payable at termination on March 12, 2007. Interest is payable quarterly at a base rate plus a margin ranging from 0.75% to 2.00% or on a Eurodollar rate plus a margin ranging from 1.75% to 3.00%. The 2004 Credit Facility is
collateralized by substantially all of the Companys assets, including stock of the Companys principal subsidiaries, prohibits the payment of cash dividends and requires the Company to maintain certain financial ratios. The borrowing base
is calculated using varying percentages of cash, accounts receivable, accrued revenue, contract cost and recognized income not yet billed, property, plant and equipment, and parts and supplies inventories. Unamortized debt issue costs of $435
associated with the 2004 Credit Facility were charged to expense in the third quarter of 2006 as the Company had an agreement in principle to replace the 2004 Credit Facility with a new credit facility. On October 27, 2006, the Company entered
into a new credit facility (see Note 13). Unamortized debt issue costs of $982 associated with the 2004 Credit Facility were included in other assets at December 31, 2005.

As of September 30, 2006, there were no borrowings under the 2004 Credit Facility and there were $37,393 in outstanding letters of credit, of which
$12,461 related to continuing operations. Letters of credit reduce the availability on the facility by 75% of their amount outstanding; however, the total value of letters of credit outstanding may not exceed $50,000 (see 2004 Credit Facility
Waivers below).

2004 Credit Facility Waivers

Primarily as a result of the negative financial impact that recent events in Nigeria have had on operations and the Companys decision to sell the Nigeria operations and assets, the Company was not in compliance
with certain financial covenants in the 2004 Credit Facility at September 30, 2006.

On August 18, 2006 the Company entered into
a Sixth Amendment and Temporary Waiver Agreement (the Sixth Amendment) which waived the Companys failure to comply with certain financial covenants of the 2004 Credit Facility during the fiscal quarter ended June 30, 2006
until the earlier of (i) September 30, 2006 or (ii) the occurrence of a waiver default, which is a breach by the Company of any covenant, a material breach of any representation and warranty or the occurrence of any
default or event of default under the 2004 Credit Facility, other than the defaults which were temporarily waived by the Sixth Amendment. The Sixth Amendment further amended the 2004 Credit Facility to reduce the total commitment to $50,000 and
provided for a letter of credit limit of $50,000 less the face amount of letters of credit issued prior to August 18, 2006, and provided that each new letter of credit must be fully cash collateralized and that a letter of credit fee of 0.25%
be paid for each cash collateralized letter of credit. The Sixth Amendment expired on September 30, 2006, and availability under the 2004 Credit Facility was reduced to zero. On October 27, 2006, the Company entered into a new $100,000
synthetic credit facility and reissued under this facility all the then outstanding letters of credit (see Note 13).

Capital Lease

In the third quarter of 2006 the Company entered into a capital lease of construction equipment with total assets purchased of
$10,187. The required total minimum lease payments are $10,187, with $773 remaining in 2006, $3,093 due in 2007, $3,093 due in 2008 and $3,228 due in 2009.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

8. Loss
Per Share

Basic and diluted loss from continuing operations per common share for the three and nine-month periods ended
September 30, 2006 and 2005 are computed as follows:



|                                                                                |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|------------------------------------------------------------------------------- |  | ------------------------------- | ---------- | - | ------------------------------ | - | ---------- | ---- |  | - | ---------- | - |  | - | ---------- | -
|                                                                                |  | Three Months EndedSeptember 30, |            |   | Nine Months EndedSeptember 30, |  
|                                                                                |  | 2006                            |            |   | 2005                           |   |            | 2006 |  |   | 2005       |  
|Net loss from continuing operations applicable to common shares                 |  | $                               | (4,965     | ) |                                | $ | (8,950     | )    |  | $ | (18,598    | ) |  | $ | (23,836    | )
|                                                                                |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Weighted average number of common shares outstanding for basic loss per share   |  |                                 | 21,557,695 |   |                                |   | 21,254,987 |      |  |   | 21,480,730 |   |  |   | 21,252,994 |  
|Effect of dilutive potential common shares from stock options                   |  |                                 |           |   |                                |   |           |      |  |   |           |   |  |   |           |  
|                                                                                |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Weighted average number of common shares outstanding for diluted loss per share |  |                                 | 21,557,695 |   |                                |   | 21,254,987 |      |  |   | 21,480,730 |   |  |   | 21,252,994 |  
|                                                                                |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Loss per common share from continuing operations:                               |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Basic                                                                           |  | $                               | (0.23      | ) |                                | $ | (0.42      | )    |  | $ | (0.87      | ) |  | $ | (1.12      | )
|                                                                                |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  
|Diluted                                                                         |  | $                               | (0.23      | ) |                                | $ | (0.42      | )    |  | $ | (0.87      | ) |  | $ | (1.12      | )
|                                                                                |  |                                 |            |   |                                |   |            |      |  |   |            |   |  |   |            |  

The Company incurred net losses for the three-month and nine-month periods ended
September 30, 2006 and 2005, respectively, and has therefore excluded the securities listed below from the computation of diluted loss per share as the effect would be anti-dilutive:



|                               |  |                                          |  |          
|------------------------------ |  | ---------------------------------------- |  | ---------
|                               |  | Three and Nine MonthsEnded September 30,
|                               |  | 2006                                     |  | 2005     
|2.75% Convertible senior notes |  | 3,595,277                                |  | 3,595,277
|6.5% Senior convertible notes  |  | 4,813,171                                |  |         
|Stock options                  |  | 833,900                                  |  | 915,770  
|Restricted stock               |  | 248,000                                  |  | 288,375  
|                               |  |                                          |  |          
|                               |  | 9,490,348                                |  | 4,799,422
|                               |  |                                          |  |          

In accordance with Emerging Issues Task Force Issue 04-8, The Effect of Contingently
Convertible Instruments on Diluted Earnings per Share, the 8,408,448 shares issuable upon conversion of both the 6.5% Notes and the 2.75% Notes will be included in diluted earnings per share if those securities are dilutive, regardless of
whether the conversion prices of $19.47 and $17.56, respectively, have been met.

9. Segment Information

The Companys two segments, International and United States & Canada (also US & Canada), are
strategic business units that are managed separately as each segment has different operational requirements and marketing strategies. Management believes, due to the composition of current work and potential work opportunities, and the nuances of
the geographic markets the Company serves, that the organization should be viewed on a geographic basis. The International segment consists of all construction, engineering and facilities development operations in countries other than the
United States and Canada. Currently such operations are primarily in the Middle East. The United States & Canada segment consists of all construction, engineering and facilities development operations in the United States and Canada.
The Companys corporate operations include



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

9. Segment
Information (continued)

the general, administrative, and financing functions of the organization. The costs of these functions are allocated between
the two operating segments. The Companys corporate operations also include various other assets that are allocated between the two operating segments.

The table below reflects the Companys operating segments for the three-month and nine-month periods ended September 30, 2006 and 2005:



|                              |  |                                       |         |   |                                      |   |        |            |  |   |         |   |  |               |         |   |            |   |        |   |  |   |         |  
|----------------------------- |  | ------------------------------------- | ------- | - | ------------------------------------ | - | ------ | ---------- |  | - | ------- | - |  | ------------- | ------- | - | ---------- | - | ------ | - |  | - | ------- | -
|                              |  | Three Months Ended September 30, 2006 |         |   | Nine Months Ended September 30, 2006 |  
|                              |  | Total                                 |         |   | International                        |   |        | US &Canada |  |   | Total   |   |  | International |         |   | US &Canada |  
|Revenue                       |  | $                                     | 125,466 |   |                                      | $ | 20,220 |            |  | $ | 105,246 |   |  | $             | 352,181 |   |            | $ | 46,076 |   |  | $ | 306,105 |  
|Operating expenses:           |  |                                       |         |   |                                      |   |        |            |  |   |         |   |  |               |         |   |            |   |        |   |  |   |         |  
|Contract costs                |  |                                       | 113,418 |   |                                      |   | 18,128 |            |  |   | 95,290  |   |  |               | 320,628 |   |            |   | 41,393 |   |  |   | 279,235 |  
|Depreciation and amortization |  |                                       | 3,265   |   |                                      |   | 470    |            |  |   | 2,795   |   |  |               | 9,180   |   |            |   | 1,628  |   |  |   | 7,552   |  
|General and administrative    |  |                                       | 11,092  |   |                                      |   | 2,010  |            |  |   | 9,082   |   |  |               | 33,133  |   |            |   | 5,006  |   |  |   | 28,127  |  
|                              |  |                                       |         |   |                                      |   |        |            |  |   |         |   |  |               |         |   |            |   |        |   |  |   |         |  
|                              |  |                                       | 127,775 |   |                                      |   | 20,608 |            |  |   | 107,167 |   |  |               | 362,941 |   |            |   | 48,027 |   |  |   | 314,914 |  
|                              |  |                                       |         |   |                                      |   |        |            |  |   |         |   |  |               |         |   |            |   |        |   |  |   |         |  
|Operating loss                |  | $                                     | (2,309  | ) |                                      | $ | (388   | )          |  | $ | (1,921  | ) |  | $             | (10,760 | ) |            | $ | (1,951 | ) |  | $ | (8,809  | )
|                              |  |                                       |         |   |                                      |   |        |            |  |   |         |   |  |               |         |   |            |   |        |   |  |   |         |  



|                              |  |                                       |        |   |                                      |   |        |             |  |   |        |   |  |                   |         |   |            |   |        |   |  |   |         |  
|----------------------------- |  | ------------------------------------- | ------ | - | ------------------------------------ | - | ------ | ----------- |  | - | ------ | - |  | ----------------- | ------- | - | ---------- | - | ------ | - |  | - | ------- | -
|                              |  | Three Months Ended September 30, 2005 |        |   | Nine Months Ended September 30, 2005 |  
|                              |  | Total                                 |        |   | International                        |   |        | US & Canada |  |   | Total  |   |  | US &International |         |   | US &Canada |  
|Revenue                       |  | $                                     | 65,034 |   |                                      | $ | 4,891  |             |  | $ | 60,143 |   |  | $                 | 176,527 |   |            | $ | 18,700 |   |  | $ | 157,827 |  
|Operating expenses:           |  |                                       |        |   |                                      |   |        |             |  |   |        |   |  |                   |         |   |            |   |        |   |  |   |         |  
|Contract costs                |  |                                       | 59,430 |   |                                      |   | 4,506  |             |  |   | 54,924 |   |  |                   | 161,368 |   |            |   | 17,253 |   |  |   | 144,115 |  
|Depreciation and amortization |  |                                       | 2,996  |   |                                      |   | 658    |             |  |   | 2,338  |   |  |                   | 8,547   |   |            |   | 2,132  |   |  |   | 6,415   |  
|General and administrative    |  |                                       | 10,376 |   |                                      |   | 2,413  |             |  |   | 7,963  |   |  |                   | 30,262  |   |            |   | 7,603  |   |  |   | 22,659  |  
|                              |  |                                       |        |   |                                      |   |        |             |  |   |        |   |  |                   |         |   |            |   |        |   |  |   |         |  
|                              |  |                                       | 72,802 |   |                                      |   | 7,577  |             |  |   | 65,225 |   |  |                   | 200,177 |   |            |   | 26,988 |   |  |   | 173,189 |  
|                              |  |                                       |        |   |                                      |   |        |             |  |   |        |   |  |                   |         |   |            |   |        |   |  |   |         |  
|Operating loss                |  | $                                     | (7,768 | ) |                                      | $ | (2,686 | )           |  | $ | (5,082 | ) |  | $                 | (23,650 | ) |            | $ | (8,288 | ) |  | $ | (15,362 | )
|                              |  |                                       |        |   |                                      |   |        |             |  |   |        |   |  |                   |         |   |            |   |        |   |  |   |         |  

Total assets by segments as of September 30, 2006 and December 31, 2005 are presented
below:



|                       |  |                   |         |                  |   |        
|---------------------- |  | ----------------- | ------- | ---------------- | - | -------
|                       |  | September 30,2006 |         | December 31,2005
|International          |  | $                 | 60,338  |                  | $ | 23,678 
|United States & Canada |  |                   | 178,529 |                  |   | 214,204
|                       |  |                   |         |                  |   |        
|Total segment assets   |  | $                 | 238,867 |                  | $ | 237,882
|                       |  |                   |         |                  |   |        

10. Contingencies, Commitments and Other Circumstances

International Irregularities & Investigation

On January 6, 2005, J. Kenneth Tillery, then President of Willbros International, Inc. (WII), who was principally responsible for all international operations, resigned from the Company. Following
Mr. Tillerys resignation, the Audit Committee, working with independent outside legal counsel and forensic accountants retained by such legal counsel, commenced an independent investigation into the circumstances in connection with a
Bolivian tax assessment and the actions of Mr. Tillery in other international locations. The Audit Committees investigation identified payments that were made by or at the direction of Mr. Tillery in Bolivia,



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

10.
Contingencies, Commitments and Other Circumstances (continued)

Nigeria and Ecuador which may have been violations of the United States Foreign Corrupt
Practices Act (FCPA) and other United States laws. The investigation also revealed that Mr. Tillery authorized numerous transactions between Company subsidiaries and entities in which he apparently held an ownership interest or
exercised significant control. In addition, the Company has learned that certain acts carried out by Mr. Tillery and others acting under his direction with respect to a bid for work in Sudan may constitute facilitation efforts prohibited by
U.S. law, a violation of U.S. trade sanctions and the unauthorized export of technical information.

The United States Securities and
Exchange Commission (SEC) continues to investigate whether the Company and others may have violated various provisions of the Securities Act and the Securities Exchange Act of 1934 (the Exchange Act) and the United States
Department of Justice (DOJ) is investigating violations of the FCPA and other applicable laws. In addition, the United States Department of Treasurys Office of Foreign Assets Control (OFAC) is investigating potential
improper facilitation and export activities.

The Company is cooperating fully with each of these investigations. If the Company or one of
its subsidiaries is found to have violated the FCPA, that entity could be subject to civil penalties of up to $650 per violation and disgorgement of profits with prejudgment interest, criminal penalties of up to the greater of $2,000 per violation
or twice the gross pecuniary gain resulting from the improper conduct, and be required to engage an independent monitor to review its compliance with the FCPA. If the Company or one of its subsidiaries is found to have violated trade sanctions
or U.S. export restrictions, that entity could be subject to civil penalties of up to $11 per violation and criminal penalties of up to $250 per violation. There may be other penalties that could apply under other U.S. laws or the laws of
foreign jurisdictions. While the consequences of these investigations on the Company and its subsidiaries are uncertain, the possible consequences include  but are not limited to  debarment from participating in future U.S.
government contracts and from participating in certain U.S. export transactions, default of existing credit facilities, restricted access to capital markets and insurance, and harm to existing and future commercial relationships. The Company
cannot predict the outcome of the investigations being conducted by the SEC, the DOJ and OFAC, including the Companys exposure to civil or criminal fines or penalties, or other regulatory action which could have a material adverse effect on
the Companys business, financial condition and results of operations.

Class-Action Lawsuit Related To International Irregularities

On May 18, 2005 a securities class-action lawsuit, captionedLegion Partners, LLP v. Willbros Group, Inc. et al., was
filed in the United States District Court for the Southern District of Texas against the Company and certain of its present and former officers and directors. Thereafter, three nearly identical lawsuits were filed. Plaintiffs purport to
represent a class composed of all persons who purchased or otherwise acquired Willbros Group, Inc. common stock and/or other securities between May 6, 2002 and May 16, 2005, inclusive. The Court ordered these actions consolidated and
appointed ADAR Investments, LLC as Lead Plaintiff and Bernstein, Liebhard & Lifshitz of New York as Lead Plaintiffs counsel, who then filed a consolidated amended complaint on January 9, 2006. The Consolidated Amended
Complaint alleges that Willbros and certain of its present and former officers and directors, including Michael Curran, Warren Williams (WGI Defendants), and J. Kenneth Tillery, violated the Securities Exchange Act of 1934 through a
series of false and misleading statements and a scheme to defraud. The alleged misrepresentations and scheme to defraud relate to the activities of Mr. Tillery in Nigeria and Bolivia, certain alleged accounting errors, the
restatement of past financial results, and alleged Foreign Corrupt Practices Act violations. The Lead Plaintiff seeks to recover unspecified monetary damages and other relief on behalf of all purchasers of the Companys common stock during the
purported class period. The Company filed a motion to dismiss the complaint, asserting that the Plaintiffs allegations were completely without merit.

While the motion to dismiss was pending, the Company reached a settlement in principle with the Lead Plaintiff and the parties have signed a Memorandum of Understanding (Proposed Settlement). The Proposed
Settlement provides for a payment of $10,500 to resolve all claims against all defendants. The full settlement amount is escrowed and is funded by the Companys insurance carriers as part of the Companys agreement with its insurers, which
also provides for payment of the Companys attorneys fees.



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

10.
Contingencies, Commitments and Other Circumstances (continued)

The Proposed Settlement is subject to limited confirmatory discovery by the
plaintiffs, notice to the class, and approval by the U.S. District Court. The Company cannot predict the outcome of the Courts rulings regarding confirmation of the settlement, but it has no reason to believe the Proposed Settlement will not
be confirmed by the Court.

Legal Proceedings

The Company is a party to a number of legal proceedings in Nigeria that are typical in number and nature for a Company of our size. The Company has recently noticed increased actions by judgment debtors to enforce
their judgments and various court orders have been obtained that are or may be appealed by the Company. Pending final resolution of the appeals, the existing court orders currently restrict the transfer of certain property out of Nigeria or attempt
to garnish monies due to the Company. while it is anticipated that the Companys appeal of the judgment and/or court orders may prevail in full or in part, the Company cannot predict the outcome of the Nigerian courts determination of the
dispute and rulings.

Insurance Coverage & Claims

The Company has the usual liability of contractors for the completion of contracts and the warranty of its work. Where work is performed through a joint
venture, the Company also has possible liability for the contract completion and warranty responsibilities of its joint venture partners. In addition, the Company acts as prime contractor on a majority of the projects it undertakes and is normally
responsible for the performance of the entire project, including subcontract work. Management is not aware of any material exposure related thereto which has not been provided for in the accompanying consolidated financial statements.

At September 30, 2006 and December 31, 2005, other assets and accounts receivable include anticipated recoveries from insurance or third
parties of $4,190 and $4,426, respectively. On October 20, 2006 the Company received payment in the amount of $3,300 related a claim. The Company believes the recovery of these costs from insurance or other parties is probable. Actual
recoveries may vary from these estimates.

Letters of Credit

From time to time, the Company enters into commercial commitments, usually in the form of commercial and standby letters of credit, insurance bonds and
financial guarantees. Contracts with the Companys customers may require the Company to provide letters of credit or insurance bonds with regard to the Companys performance of contracted services. In such cases, the commitments can be
called upon in the event of failure to perform contracted services. Likewise, contracts may allow the Company to issue letters of credit or insurance bonds in lieu of contract retention provisions, in which the client withholds a percentage of the
contract value until project completion or expiration of a warranty period. Retention commitments can be called upon in the event of warranty or project completion issues, as prescribed in the contracts. At September 30, 2006, the Company had
approximately $12,461 of letters of credit and $52,136 insurance bonds outstanding, representing the maximum amount of future payments the Company could be required to make. The Company had no liability recorded as of September 30, 2006 related
to these commitments.

6.5% Convertible Senior Notes

In connection with the private placement of the 6.5% Notes (see Note 7) on December 23, 2005, the Company entered into a Registration Rights Agreement with the Purchasers. The Registration Rights Agreement
requires the Company to file a registration statement with respect to the resale of the shares of the Companys common stock issuable upon conversion of the 6.5% Notes (filed on September 22, 2006) and to use its best efforts to cause such
registration statement to be declared effective no later than December 31, 2006. In the event the Company is unable to satisfy its obligations under the Registration Rights Agreement, the Company will owe additional interest to the holders of
the 6.5% Notes at a rate per annum equal to 0.5% of the principal amount of the 6.5% Notes for the first 90 days and 1.0% per annum from and after the 91stday following such event.



25



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

10.
Contingencies, Commitments and Other Circumstances (continued)

Contract Completion Audits

Certain post-contract completion audits and reviews are periodically conducted by clients and/or government entities. While there can be no assurance
that claims will not be received as a result of such audits and reviews, management does not believe a legitimate basis for any material claims exists. At present, it is not possible for management to estimate the likelihood of such claims being
asserted or, if asserted, the amount or nature thereof.

International Operations

The Company provides engineering and construction services to the oil, gas and power industries and government entities, and develops, owns and operates
assets developed under Build, Own and Operate contracts. The Companys principal markets are currently Africa, the Middle East and North America. Operations outside the United States and Canada may be subject to certain risks which
ordinarily would not be expected to exist in the United States, including foreign currency restrictions, extreme exchange rate fluctuations, expropriation of assets, civil uprisings and riots, war, unanticipated taxes including income taxes, excise
duties, import taxes, export taxes, sales taxes or other governmental assessments, availability of suitable personnel and equipment, termination of existing contracts and leases, government instability and legal systems of decrees, laws,
regulations, interpretations and court decisions which are not always fully developed and which may be retroactively applied. Management is not presently aware of any events of the type described in the countries in which it operates that have not
been provided for in the accompanying consolidated financial statements.

See Note 2 for a discussion of commitments and contingencies
associated with Discontinued Operations.

11. Related Party Transactions

In the past, certain of the Companys subsidiaries entered into commercial agreements with companies in which the former President of Willbros
International, Inc., J. Kenneth Tillery, apparently had an ownership interest. These ownership interests had not been previously disclosed to the Company. Those companies included Arbastro Trading, Ltd., Windfall Energy Services, Ltd., Oco
Industrial Services, Ltd., Hydrodive Offshore Services International, Inc., Hydrodive Nigeria, Ltd., and Hydrodive International, Ltd. All are companies that chartered or sold marine vessels to the Companys subsidiaries. Hydrodive Offshore
Services International, Inc. and Hydrodive International, Ltd. (together Hydrodive) also provided diving services to the Companys subsidiaries. Payment terms for these vendors range from due on receipt to net 30 days. The
settlement method was cash.

Mr. Tillery also appears to have exercised significant influence over the activities of Symoil Petroleum,
Ltd., and Fusion Petroleum Services, Ltd., which provided consulting services for projects in Nigeria, and Kaplan and Associates, which provided consulting services for projects in Bolivia and certain other foreign locations.

Mr. Tillery resigned his position with the Company on January 6, 2005 and accordingly none of the companies identified above are considered
related parties subsequent to that date. In the fourth quarter of 2005, the Company settled all outstanding claims with Windfall Energy Services, Ltd., Hydrodive International, Ltd., and Hydrodive Nigeria, Ltd. The Company entered into new contracts
governing services to be provided by these vendors in the future.

Payments made to companies where Mr. Tillery appears to have had an
undisclosed ownership interest during the three-month and nine-month period ended September 30, 2005 were recorded as contract cost on Nigeria projects and are detailed below.



|                               |  |                                     |       |                                    |   |      
|------------------------------ |  | ----------------------------------- | ----- | ---------------------------------- | - | -----
|                               |  | Three MonthsEndedSeptember 30, 2005 |       | Nine MonthsEndedSeptember 30, 2005
|Hydrodive International, Ltd.  |  | $                                   | 2,563 |                                    | $ | 4,599
|Hydrodive Nigeria, Ltd.        |  |                                     | 10    |                                    |   | 10   
|Windfall Energy Services, Ltd. |  |                                     |      |                                    |   | 300  
|Oco Industrial Services, Ltd.  |  |                                     | 40    |                                    |   | 43   
|                               |  |                                     |       |                                    |   |      
|Total                          |  | $                                   | 2,613 |                                    | $ | 4,952
|                               |  |                                     |       |                                    |   |      



26



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

11.
Related Party Transactions (continued)

Outstanding amounts owed to related parties in which Mr. Tillery appears to have had an
undisclosed ownership interest or over which he appears to have exercised significant influence and which are included in accounts payable and accrued liabilities are as follows:



|                               |  |                   |      
|------------------------------ |  | ----------------- | -----
|                               |  | September 30,2005
|Hydrodive International, Ltd.  |  | $                 | 1,118
|Windfall Energy Services, Ltd. |  |                   | 753  
|Hydrodive Nigeria, Ltd.        |  |                   | 21   
|                               |  |                   |      
|Total                          |  | $                 | 1,892
|                               |  |                   |      

12. Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements

Set forth below are the condensed consolidating financial statements of (a) Willbros Group, Inc. (WGI), (b) Willbros USA, Inc.
(WUSAI), which is a guarantor of the 6.5% Notes, and (c) all other direct and indirect subsidiaries, including the Discontinued Operations in Nigeria and Venezuela, which are not guarantors of the 6.5% Notes. There are currently no
restrictions on the ability of WUSAI to transfer funds to WGI in the form of cash dividends or advances. Under the terms of the Indenture for the 6.5% Notes, WUSAI may not sell or otherwise dispose of all or substantially all of its assets, or merge
with or into another entity, other than the Company, unless no default exists under the Indenture and the acquirer assumes all obligations of WUSAI under the Indenture. WGI is a holding company with no significant operations, other than through its
subsidiaries.

The condensed consolidating financial statements present investments in subsidiaries using the equity method of accounting.



27



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

12.
Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (continued)

September 30, 2006 and
December 31, 2005

Willbros Group, Inc. and Subsidiaries

CONDENSED CONSOLIDATING BALANCE SHEETS



---



|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|--------------------------------------------------------- |  | ------------------ | ------- | - | ---------------- | - | ------- | -------------- |  | - | ------------ | - |  | ------------ | -------- | - |  | - | ------- | -
|                                                          |  | September 30, 2006 |        
|                                                          |  | Parent             |         |   | WUSAI(Guarantor) |   |         | Non-Guarantors |  |   | Eliminations |   |  | Consolidated |         
|ASSETS                                                    |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Current assets:                                           |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Cash and cash equivalents                                 |  | $                  | 15,070  |   |                  | $ | (3,073  | )              |  | $ | 3,479        |   |  | $            |         |   |  | $ | 15,476  |  
|Restricted cash                                           |  |                    | 1,500   |   |                  |   |        |                |  |   |             |   |  |              |         |   |  |   | 1,500   |  
|Accounts receivable, net                                  |  |                    |        |   |                  |   | 57,411  |                |  |   | 45,003       |   |  |              |         |   |  |   | 102,414 |  
|Contract cost and recognized income not yet billed        |  |                    |        |   |                  |   | 2,709   |                |  |   | 12,254       |   |  |              |         |   |  |   | 14,963  |  
|Prepaid expenses                                          |  |                    |        |   |                  |   | 16,550  |                |  |   | (259         | ) |  |              |         |   |  |   | 16,291  |  
|Parts and supplies inventories                            |  |                    |        |   |                  |   | 464     |                |  |   | 1,671        |   |  |              |         |   |  |   | 2,135   |  
|Assets of discontinued operations                         |  |                    |        |   |                  |   |        |                |  |   | 285,729      |   |  |              |         |   |  |   | 285,729 |  
|Receivables from affiliated companies                     |  |                    | 225,794 |   |                  |   |        |                |  |   |             |   |  |              | (225,794 | ) |  |   |        |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total current assets                                      |  |                    | 242,364 |   |                  |   | 74,061  |                |  |   | 347,877      |   |  |              | (225,794 | ) |  |   | 438,508 |  
|Deferred tax assets                                       |  |                    |        |   |                  |   | 3,548   |                |  |   | 152          |   |  |              |         |   |  |   | 3,700   |  
|Property, plant and equipment, net                        |  |                    |        |   |                  |   | 34,460  |                |  |   | 32,007       |   |  |              |         |   |  |   | 66,467  |  
|Investment in subsidiaries                                |  |                    | (5,899  | ) |                  |   |        |                |  |   |             |   |  |              | 5,899    |   |  |   |        |  
|Other assets                                              |  |                    | 6,334   |   |                  |   | 3,550   |                |  |   | 6,037        |   |  |              |         |   |  |   | 15,921  |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total assets                                              |  | $                  | 242,799 |   |                  | $ | 115,619 |                |  | $ | 386,073      |   |  | $            | (219,895 | ) |  | $ | 524,596 |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|                                                          |  |                    |         |   |                 
|LIABILITIES AND STOCKHOLDERS EQUITY                      |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Current liabilities:                                      |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Notes payable and current portion of long-term debt       |  | $                  |        |   |                  | $ | 2,599   |                |  | $ | 61           |   |  | $            |         |   |  | $ | 2,660   |  
|Accounts payable and accrued liabilities                  |  |                    | 1,685   |   |                  |   | 38,891  |                |  |   | 41,643       |   |  |              |         |   |  |   | 82,219  |  
|Contract billings in excess of cost and recognized income |  |                    |        |   |                  |   | 6,878   |                |  |   | 72           |   |  |              |         |   |  |   | 6,950   |  
|Accrued income tax                                        |  |                    |        |   |                  |   | (82     | )              |  |   | 865          |   |  |              |         |   |  |   | 783     |  
|Liabilities of discontinued operations                    |  |                    |        |   |                  |   |        |                |  |   | 281,371      |   |  |              | (101,218 | ) |  |   | 180,153 |  
|Payables to affiliated companies                          |  |                    |        |   |                  |   | 27,574  |                |  |   | 97,002       |   |  |              | (124,576 | ) |  |   |        |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total current liabilities                                 |  |                    | 1,685   |   |                  |   | 75,860  |                |  |   | 421,014      |   |  |              | (225,794 | ) |  |   | 272,765 |  
|Long-term debt                                            |  |                    | 154,500 |   |                  |   | 10,279  |                |  |   | 101          |   |  |              |         |   |  |   | 164,880 |  
|Other liabilities                                         |  |                    |        |   |                  |   | 64      |                |  |   | 273          |   |  |              |         |   |  |   | 337     |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total liabilities                                         |  |                    | 156,185 |   |                  |   | 86,203  |                |  |   | 421,388      |   |  |              | (225,794 | ) |  |   | 437,982 |  
|Stockholders equity:                                     |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Common stock                                              |  |                    | 1,099   |   |                  |   | 8       |                |  |   | 32           |   |  |              | (40      | ) |  |   | 1,099   |  
|Capital in excess of par value                            |  |                    | 163,139 |   |                  |   | 89,156  |                |  |   | 8,526        |   |  |              | (97,682  | ) |  |   | 163,139 |  
|Accumulated deficit                                       |  |                    | (80,013 | ) |                  |   | (59,748 | )              |  |   | (45,148      | ) |  |              | 104,896  |   |  |   | (80,013 | )
|Other stockholders equity components                     |  |                    | 2,389   |   |                  |   |        |                |  |   | 1,275        |   |  |              | (1,275   | ) |  |   | 2,389   |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total stockholders equity                                |  |                    | 86,614  |   |                  |   | 29,416  |                |  |   | (35,315      | ) |  |              | 5,899    |   |  |   | 86,614  |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total liabilities and stockholders equity                |  | $                  | 242,799 |   |                  | $ | 115,619 |                |  | $ | 386,073      |   |  | $            | (219,895 | ) |  | $ | 524,596 |  
|                                                          |  |                    |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  



28



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##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

12.
Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (continued)

CONDENSED
CONSOLIDATING BALANCE SHEETS



---



|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|--------------------------------------------------------- |  | ----------------- | ------- | - | ---------------- | - | ------- | -------------- |  | - | ------------ | - |  | ------------ | -------- | - |  | - | ------- | -
|                                                          |  | December 31, 2005 |        
|                                                          |  | Parent            |         |   | WUSAI(Guarantor) |   |         | Non-Guarantors |  |   | Eliminations |   |  | Consolidated |         
|ASSETS                                                    |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Current assets:                                           |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Cash and cash equivalents                                 |  | $                 | 58,794  |   |                  | $ | (5,240  | )              |  | $ | 2,379        |   |  | $            |         |   |  | $ | 55,933  |  
|Accounts receivable, net                                  |  |                   | 196     |   |                  |   | 61,790  |                |  |   | 22,000       |   |  |              |         |   |  |   | 83,986  |  
|Contract cost and recognized income not yet billed        |  |                   |        |   |                  |   | 5,839   |                |  |   | 1,780        |   |  |              |         |   |  |   | 7,619   |  
|Prepaid expenses                                          |  |                   |        |   |                  |   | 10,300  |                |  |   | 1,571        |   |  |              |         |   |  |   | 11,871  |  
|Parts and supplies inventories                            |  |                   |        |   |                  |   | 701     |                |  |   | 1,808        |   |  |              |         |   |  |   | 2,509   |  
|Assets of discontinued operations                         |  |                   |        |   |                  |   | 23,049  |                |  |   | 238,050      |   |  |              |         |   |  |   | 261,099 |  
|Receivables from affiliated companies                     |  |                   | 173,080 |   |                  |   |        |                |  |   |             |   |  |              | (173,080 | ) |  |   |        |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total current assets                                      |  |                   | 232,070 |   |                  |   | 96,439  |                |  |   | 267,588      |   |  |              | (173,080 | ) |  |   | 423,017 |  
|Deferred tax assets                                       |  |                   |        |   |                  |   | 2,742   |                |  |   | 1,505        |   |  |              |         |   |  |   | 4,247   |  
|Property, plant and equipment, net                        |  |                   |        |   |                  |   | 29,956  |                |  |   | 29,750       |   |  |              |         |   |  |   | 59,706  |  
|Investment in subsidiaries                                |  |                   | 46,158  |   |                  |   |        |                |  |   |             |   |  |              | (46,158  | ) |  |   |        |  
|Other assets                                              |  |                   | 3,412   |   |                  |   | 3,301   |                |  |   | 5,298        |   |  |              |         |   |  |   | 12,011  |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total assets                                              |  | $                 | 281,640 |   |                  | $ | 132,438 |                |  | $ | 304,141      |   |  | $            | (219,238 | ) |  | $ | 498,981 |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|                                                          |  |                   |         |   |                 
|LIABILITIES AND STOCKHOLDERS EQUITY                      |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Current liabilities:                                      |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Notes payable                                             |  | $                 |        |   |                  | $ | 2,671   |                |  | $ | 9            |   |  | $            |         |   |  | $ | 2,680   |  
|Accounts payable and accrued liabilities                  |  |                   | 1,406   |   |                  |   | 45,614  |                |  |   | 20,562       |   |  |              |         |   |  |   | 67,582  |  
|Contract billings in excess of cost and recognized income |  |                   |        |   |                  |   | 1,123   |                |  |   | 219          |   |  |              |         |   |  |   | 1,342   |  
|Accrued income tax                                        |  |                   |        |   |                  |   | 1,308   |                |  |   | 1,060        |   |  |              |         |   |  |   | 2,368   |  
|Liabilities of discontinued operations                    |  |                   |        |   |                  |   | 880     |                |  |   | 156,876      |   |  |              | (13,671  | ) |  |   | 144,085 |  
|Payables to affiliated companies                          |  |                   |        |   |                  |   | 47,665  |                |  |   | 111,744      |   |  |              | (159,409 | ) |  |   |        |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total current liabilities                                 |  |                   | 1,406   |   |                  |   | 99,261  |                |  |   | 290,470      |   |  |              | (173,080 | ) |  |   | 218,057 |  
|Long-term debt                                            |  |                   | 135,000 |   |                  |   | 334     |                |  |   | 6            |   |  |              |         |   |  |   | 135,340 |  
|Other liabilities                                         |  |                   |        |   |                  |   | 73      |                |  |   | 277          |   |  |              |         |   |  |   | 350     |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total liabilities                                         |  |                   | 136,406 |   |                  |   | 99,668  |                |  |   | 290,753      |   |  |              | (173,080 | ) |  |   | 353,747 |  
|Stockholders equity:                                     |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Common stock                                              |  |                   | 1,082   |   |                  |   | 8       |                |  |   | 32           |   |  |              | (40      | ) |  |   | 1,082   |  
|Capital in excess of par value                            |  |                   | 161,596 |   |                  |   | 89,156  |                |  |   | 8,526        |   |  |              | (97,682  | ) |  |   | 161,596 |  
|Retained earnings (deficit)                               |  |                   | (15,166 | ) |                  |   | (56,394 | )              |  |   | 5,067        |   |  |              | 51,327   |   |  |   | (15,166 | )
|Other stockholders equity components                     |  |                   | (2,278  | ) |                  |   |        |                |  |   | (237         | ) |  |              | 237      |   |  |   | (2,278  | )
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total stockholders equity                                |  |                   | 145,234 |   |                  |   | 32,770  |                |  |   | 13,388       |   |  |              | (46,158  | ) |  |   | 145,234 |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  
|Total liabilities and stockholders equity                |  | $                 | 281,640 |   |                  | $ | 132,438 |                |  | $ | 304,141      |   |  | $            | (219,238 | ) |  | $ | 498,981 |  
|                                                          |  |                   |         |   |                  |   |         |                |  |   |              |   |  |              |          |   |  |   |         |  



29



---

##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

12.
Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (continued)

CONDENSED
CONSOLIDATING STATEMENT OF OPERATIONS



---



|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|---------------------------------------------------------------------------- |  | ------------------------------------- | ------- | - | ---------------- | - | ------ | -------------- |  | - | ------------ | - |  | ------------ | ------ | - |  | - | ------- | -
|                                                                             |  | Three Months Ended September 30, 2006 |        
|                                                                             |  | Parent                                |         |   | WUSAI(Guarantor) |   |        | Non-Guarantors |  |   | Eliminations |   |  | Consolidated |       
|Contract revenue                                                             |  | $                                     |        |   |                  | $ | 77,699 |                |  | $ | 55,600       |   |  | $            | (7,833 | ) |  | $ | 125,466 |  
|Operating expenses:                                                          |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Contract costs                                                               |  |                                       | 1       |   |                  |   | 65,456 |                |  |   | 47,961       |   |  |              |       |   |  |   | 113,418 |  
|Depreciation and amortization                                                |  |                                       |        |   |                  |   | 2,236  |                |  |   | 1,029        |   |  |              |       |   |  |   | 3,265   |  
|General and administrative                                                   |  |                                       | 983     |   |                  |   | 11,478 |                |  |   | 6,464        |   |  |              | (7,833 | ) |  |   | 11,092  |  
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|                                                                             |  |                                       | 984     |   |                  |   | 79,170 |                |  |   | 55,454       |   |  |              | (7,833 | ) |  |   | 127,775 |  
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Operating loss                                                               |  |                                       | (984    | ) |                  |   | (1,471 | )              |  |   | 146          |   |  |              |       |   |  |   | (2,309  | )
|Other income (expense):                                                      |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Equity in loss of consolidated subsidiaries                                  |  |                                       | (19,015 | ) |                  |   |       |                |  |   |             |   |  |              | 19,015 |   |  |   |        |  
|Interest  net                                                               |  |                                       | (2,102  | ) |                  |   | (335   | )              |  |   | (272         | ) |  |              |       |   |  |   | (2,709  | )
|Other  net                                                                  |  |                                       |        |   |                  |   | (18    | )              |  |   | 450          |   |  |              |       |   |  |   | 432     |  
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Income (loss) from continuing operations before income taxes                 |  |                                       | (22,101 | ) |                  |   | (1,824 | )              |  |   | 324          |   |  |              | 19,015 |   |  |   | (4,586  | )
|Provision (benefit) for income taxes                                         |  |                                       |        |   |                  |   | (650   | )              |  |   | 1,029        |   |  |              |       |   |  |   | 379     |  
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Income (loss) from continuing operations                                     |  |                                       | (22,101 | ) |                  |   | (1,174 | )              |  |   | (705         | ) |  |              | 19,015 |   |  |   | (4,965  | )
|Loss from discontinued operations net of provision for income taxes          |  |                                       |        |   |                  |   | (570   | )              |  |   | (16,566      | ) |  |              |       |   |  |   | (17,136 | )
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Net income (loss)                                                            |  | $                                     | (22,101 | ) |                  | $ | (1,744 | )              |  | $ | (17,271      | ) |  | $            | 19,015 |   |  | $ | (22,101 | )
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|                                                                             | 
|                                                                             |  | Three Months Ended September 30, 2005 |        
|                                                                             |  | Parent                                |         |   | WUSAI(Guarantor) |   |        | Non-Guarantors |  |   | Eliminations |   |  | Consolidated |       
|Contract revenue                                                             |  | $                                     |        |   |                  | $ | 58,554 |                |  | $ | 16,231       |   |  | $            | (9,751 | ) |  | $ | 65,034  |  
|Operating expenses:                                                          |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Contract costs                                                               |  |                                       |        |   |                  |   | 44,733 |                |  |   | 14,697       |   |  |              |       |   |  |   | 59,430  |  
|Depreciation and amortization                                                |  |                                       |        |   |                  |   | 1,833  |                |  |   | 1,163        |   |  |              |       |   |  |   | 2,996   |  
|General and administrative                                                   |  |                                       | 1,432   |   |                  |   | 10,882 |                |  |   | 7,813        |   |  |              | (9,751 | ) |  |   | 10,376  |  
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|                                                                             |  |                                       | 1,432   |   |                  |   | 57,448 |                |  |   | 23,673       |   |  |              | (9,751 | ) |  |   | 72,802  |  
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Operating loss                                                               |  |                                       | (1,432  | ) |                  |   | 1,106  |                |  |   | (7,442       | ) |  |              |       |   |  |   | (7,768  | )
|                                                                             |  |                                       |         |   |                 
|Other income (expense):                                                      |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Equity in loss of consolidated subsidiaries                                  |  |                                       | (15,338 | ) |                  |   |       |                |  |   |             |   |  |              | 15,338 |   |  |   |        |  
|Interest  net                                                               |  |                                       | (510    | ) |                  |   | (476   | )              |  |   | (616         | ) |  |              |       |   |  |   | (1,602  | )
|Other  net                                                                  |  |                                       | (273    | ) |                  |   | (306   | )              |  |   | (95          | ) |  |              |       |   |  |   | (674    | )
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Income (loss) from continuing operations before income taxes                 |  |                                       | (17,553 | ) |                  |   | 324    |                |  |   | (8,153       | ) |  |              | 15,338 |   |  |   | (10,044 | )
|Provisions tax (benefit) for income taxes                                    |  |                                       |        |   |                  |   | (778   | )              |  |   | (316         | ) |  |              |       |   |  |   | (1,094  | )
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Income (loss) from continuing operations                                     |  |                                       | (17,553 | ) |                  |   | 1,102  |                |  |   | (7,837       | ) |  |              | 15,338 |   |  |   | (8,950  | )
|Income (loss) from discontinued operations net of provision for income taxes |  |                                       |        |   |                  |   | 13     |                |  |   | (8,616       | ) |  |              |       |   |  |   | (8,603  | )
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  
|Net income (loss)                                                            |  | $                                     | (17,553 | ) |                  | $ | 1,115  |                |  | $ | (16,453      | ) |  | $            | 15,338 |   |  | $ | (17,553 | )
|                                                                             |  |                                       |         |   |                  |   |        |                |  |   |              |   |  |              |        |   |  |   |         |  



30



---

##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

12.
Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (continued)

CONDENSED
CONSOLIDATING STATEMENT OF OPERATIONS



---



|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|---------------------------------------------------------------------------- |  | ------------------------------------ | ------- | - | ---------------- | - | ------- | -------------- |  | - | ------------ | - |  | ------------ | ------- | - |  | - | ------- | -
|                                                                             |  | Nine Months Ended September 30, 2006 |        
|                                                                             |  | Parent                               |         |   | WUSAI(Guarantor) |   |         | Non-Guarantors |  |   | Eliminations |   |  | Consolidated |        
|Contract revenue                                                             |  | $                                    |        |   |                  | $ | 219,027 |                |  | $ | 159,326      |   |  | $            | (26,172 | ) |  | $ | 352,181 |  
|Operating expenses:                                                          |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Contract costs                                                               |  |                                      | 1       |   |                  |   | 177,868 |                |  |   | 142,759      |   |  |              |        |   |  |   | 320,628 |  
|Depreciation and amortization                                                |  |                                      |        |   |                  |   | 5,930   |                |  |   | 3,250        |   |  |              |        |   |  |   | 9,180   |  
|General and administrative                                                   |  |                                      | 6,354   |   |                  |   | 39,311  |                |  |   | 13,640       |   |  |              | (26,172 | ) |  |   | 33,133  |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|                                                                             |  |                                      | 6,355   |   |                  |   | 223,109 |                |  |   | 159,649      |   |  |              | (26,172 | ) |  |   | 362,941 |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Operating loss                                                               |  |                                      | (6,355  | ) |                  |   | (4,082  | )              |  |   | (323         | ) |  |              |        |   |  |   | (10,760 | )
|                                                                             |  |                                      |         |   |                 
|Other income (expense):                                                      |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Equity in loss of consolidated subsidiaries                                  |  |                                      | (53,569 | ) |                  |   |        |                |  |   |             |   |  |              | 53,569  |   |  |   |        |  
|Interest  net                                                               |  |                                      | (4,922  | ) |                  |   | (698    | )              |  |   | (512         | ) |  |              |        |   |  |   | (6,132  | )
|Other  net                                                                  |  |                                      | (1      | ) |                  |   | (14     | )              |  |   | 120          |   |  |              |        |   |  |   | 105     |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Loss from continuing operations before income taxes                          |  |                                      | (64,847 | ) |                  |   | (4,794  | )              |  |   | (715         | ) |  |              | 53,569  |   |  |   | (16,787 | )
|Provision for income taxes                                                   |  |                                      |        |   |                  |   | 361     |                |  |   | 1,450        |   |  |              |        |   |  |   | 1,811   |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Loss from continuing operations                                              |  |                                      | (64,847 | ) |                  |   | (5,155  | )              |  |   | (2,165       | ) |  |              | 53,569  |   |  |   | (18,598 | )
|Income (loss) from discontinued operations net of provision for income taxes |  |                                      |        |   |                  |   | 1,800   |                |  |   | (48,049      | ) |  |              |        |   |  |   | (46,249 | )
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Net loss                                                                     |  | $                                    | (64,847 | ) |                  | $ | (3,355  | )              |  | $ | (50,214      | ) |  | $            | 53,569  |   |  | $ | (64,847 | )
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|                                                                             | 
|                                                                             |  | Nine Months Ended September 30, 2005 |        
|                                                                             |  | Parent                               |         |   | WUSAI(Guarantor) |   |         | Non-Guarantors |  |   | Eliminations |   |  | Consolidated |        
|Contract revenue                                                             |  | $                                    |        |   |                  | $ | 152,000 |                |  | $ | 53,173       |   |  | $            | (28,646 | ) |  | $ | 176,527 |  
|Operating expenses:                                                          |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Contract costs                                                               |  |                                      |        |   |                  |   | 112,454 |                |  |   | 48,914       |   |  |              |        |   |  |   | 161,368 |  
|Depreciation and amortization                                                |  |                                      |        |   |                  |   | 5,253   |                |  |   | 3,294        |   |  |              |        |   |  |   | 8,547   |  
|General and administrative                                                   |  |                                      | 4,307   |   |                  |   | 39,066  |                |  |   | 15,535       |   |  |              | (28,646 | ) |  |   | 30,262  |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|                                                                             |  |                                      | 4,307   |   |                  |   | 156,773 |                |  |   | 67,743       |   |  |              | (28,646 | ) |  |   | 200,177 |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Operating loss                                                               |  |                                      | (4,307  | ) |                  |   | (4,773  | )              |  |   | (14,570      | ) |  |              |        |   |  |   | (23,650 | )
|                                                                             |  |                                      |         |   |                 
|Other income (expense):                                                      |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Equity in loss of consolidated subsidiaries                                  |  |                                      | (31,586 | ) |                  |   |        |                |  |   |             |   |  |              | 31,586  |   |  |   |        |  
|Interest  net                                                               |  |                                      | (1,235  | ) |                  |   | (848    | )              |  |   | (554         | ) |  |              |        |   |  |   | (2,637  | )
|Other  net                                                                  |  |                                      | (242    | ) |                  |   | 628     |                |  |   | 96           |   |  |              |        |   |  |   | 482     |  
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Loss from continuing operations before income taxes                          |  |                                      | (37,370 | ) |                  |   | (4,993  | )              |  |   | (15,028      | ) |  |              | 31,586  |   |  |   | (25,805 | )
|Income tax benefit                                                           |  |                                      |        |   |                  |   | (1,292  | )              |  |   | (677         | ) |  |              |        |   |  |   | (1,969  | )
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Loss from continuing operations                                              |  |                                      | (37,370 | ) |                  |   | (3,701  | )              |  |   | (14,351      | ) |  |              | 31,586  |   |  |   | (23,836 | )
|Income (loss) from discontinued operations net of provision for income taxes |  |                                      |        |   |                  |   | 2,013   |                |  |   | (15,547      | ) |  |              |        |   |  |   | (13,534 | )
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  
|Net loss                                                                     |  | $                                    | (37,370 | ) |                  | $ | (1,688  | )              |  | $ | (29,898      | ) |  | $            | 31,586  |   |  | $ | (37,370 | )
|                                                                             |  |                                      |         |   |                  |   |         |                |  |   |              |   |  |              |         |   |  |   |         |  



31



---

##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

12.
Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (continued)

CONDENSED
CONSOLIDATING STATEMENTS OF CASH FLOWS



---



|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|------------------------------------------------------------------------ |  | ------------------------------------ | ------- | - | ---------------- | - | ------- | -------------- |  | - | ------------ | - | ------------ | - | - |  | - | ------- | -
|                                                                         |  | Nine Months Ended September 30, 2006 |        
|                                                                         |  | Parent                               |         |   | WUSAI(Guarantor) |   |         | Non-Guarantors |  |   | Eliminations |   | Consolidated |  
|Net cash used in operating activities of continuing operations           |  | $                                    | (6,940  | ) |                  | $ | (3,533  | )              |  | $ | (2,244       | ) |              | $ |  |  | $ | (12,717 | )
|Net cash used in operating activities of discontinued operations         |  |                                      |        |   |                  |   | (880    | )              |  |   | (58,705      | ) |              |   |  |  |   | (59,585 | )
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Cash used in operating activities                                        |  |                                      | (6,940  | ) |                  |   | (4,413  | )              |  |   | (60,949      | ) |              |   |  |  |   | (72,302 | )
|Cash flows from investing activities:                                    |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Purchases of property, plant and equipment                               |  |                                      |        |   |                  |   | (2,242  | )              |  |   | (10,147      | ) |              |   |  |  |   | (12,389 | )
|Increase in restricted cash                                              |  |                                      | (1,500  | ) |                  |   |        |                |  |   |             |   |              |   |  |  |   | (1,500  | )
|Proceeds from sale of property, plant and equipment                      |  |                                      |        |   |                  |   |        |                |  |   | 8,243        |   |              |   |  |  |   | 8,243   |  
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Cash used in investing activities of continuing operations               |  |                                      | (1,500  | ) |                  |   | (2,242  | )              |  |   | (1,904       | ) |              |   |  |  |   | (5,646  | )
|Cash provided by investing activities of discontinued operations         |  |                                      |        |   |                  |   | 25,082  |                |  |   | 4,809        |   |              |   |  |  |   | 29,891  |  
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) investing activities                          |  |                                      | (1,500  | ) |                  |   | 22,840  |                |  |   | 2,905        |   |              |   |  |  |   | 24,245  |  
|Cash flows from financing activities:                                    |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Proceeds from issuance of convertible notes                              |  |                                      | 19,500  |   |                  |   |        |                |  |   |             |   |              |   |  |  |   | 19,500  |  
|Proceeds from issuance of common stock                                   |  |                                      | 2,226   |   |                  |   |        |                |  |   |             |   |              |   |  |  |   | 2,226   |  
|Advances from (repayments to) parent/affiliates                          |  |                                      | (52,714 | ) |                  |   | (6,741  | )              |  |   | 59,455       |   |              |   |  |  |   |        |  
|Repayment of bank and other debt                                         |  |                                      |        |   |                  |   | (9,519  | )              |  |   | (36          | ) |              |   |  |  |   | (9,555  | )
|Costs of debt issuance and other                                         |  |                                      | (4,296  | ) |                  |   |        |                |  |   | (34          | ) |              |   |  |  |   | (4,330  | )
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) financing activities of continuing operations |  |                                      | (35,284 | ) |                  |   | (16,260 | )              |  |   | 59,385       |   |              |   |  |  |   | 7,841   |  
|Cash provided by financing activities of discontinued operations         |  |                                      |        |   |                  |   |        |                |  |   |             |   |              |   |  |  |   |        |  
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) financing activities                          |  |                                      | (35,284 | ) |                  |   | (16,260 | )              |  |   | 59,385       |   |              |   |  |  |   | 7,841   |  
|Effect of exchange rate changes on cash and cash equivalents             |  |                                      |        |   |                  |   |        |                |  |   | (241         | ) |              |   |  |  |   | (241    | )
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) all activities                                |  | $                                    | (43,724 | ) |                  | $ | 2,167   |                |  | $ | 1,100        |   |              | $ |  |  | $ | (40,457 | )
|                                                                         |  |                                      |         |   |                  |   |         |                |  |   |              |   |              |   |   |  |   |         |  



32



---

##### Table of Contents

WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

12.
Parent, Guarantor and Non-Guarantor Condensed Consolidating Financial Statements (continued)

CONDENSED
CONSOLIDATING STATEMENTS OF CASH FLOWS



---



|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|---------------------------------------------------------------------------------- |  | ------------------------------------ | ------- | - | ---------------- | - | ------ | -------------- |  | - | ------------ | - | ------------ | - | - |  | - | ------- | -
|                                                                                   |  | Nine Months Ended September 30, 2005 |        
|                                                                                   |  | Parent                               |         |   | WUSAI(Guarantor) |   |        | Non-Guarantors |  |   | Eliminations |   | Consolidated |  
|Net cash flows provided by (used in) operating activities of continuing operations |  | $                                    | (3,728  | ) |                  | $ | 8,777  |                |  | $ | (23,969      | ) |              | $ |  |  | $ | (18,920 | )
|Net cash provided by (used in) operating activities of discontinued operations     |  |                                      |        |   |                  |   | (838   | )              |  |   | 6,746        |   |              |   |  |  |   | 5,908   |  
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) operating activities                                    |  |                                      | (3,728  | ) |                  |   | 7,939  |                |  |   | (17,223      | ) |              |   |  |  |   | (13,012 | )
|Cash flows from investing activities:                                              |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Purchases of property, plant and equipment                                         |  |                                      |        |   |                  |   | (4,866 | )              |  |   | (9,797       | ) |              |   |  |  |   | (14,663 | )
|Proceeds from sales of property, plant and equipment                               |  |                                      |        |   |                  |   | 1,529  |                |  |   | 339          |   |              |   |  |  |   | 1,868   |  
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Cash used in investing activities of continuing operations                         |  |                                      |        |   |                  |   | (3,337 | )              |  |   | (9,458       | ) |              |   |  |  |   | (12,795 | )
|Cash used in investing activities of discontinued operations                       |  |                                      |        |   |                  |   |       |                |  |   | (13,811      | ) |              |   |  |  |   | (13,811 | )
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Cash used in investing activities                                                  |  |                                      |        |   |                  |   | (3,337 | )              |  |   | (23,269      | ) |              |   |  |  |   | (26,606 | )
|Cash flows from financing activities:                                              |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Proceeds from issuance of bank and other debt                                      |  |                                      |        |   |                  |   |       |                |  |   | 779          |   |              |   |  |  |   | 779     |  
|Proceeds from issuance of common stock                                             |  |                                      | 362     |   |                  |   |       |                |  |   |             |   |              |   |  |  |   | 362     |  
|Advances from (repayments to) parent/affiliates                                    |  |                                      | (39,181 | ) |                  |   | (698   | )              |  |   | 39,879       |   |              |   |  |  |   |        |  
|Repayment of bank and other debt                                                   |  |                                      |        |   |                  |   | (3,217 | )              |  |   | (808         | ) |              |   |  |  |   | (4,025  | )
|Costs of debt issuance and other                                                   |  |                                      | (252    | ) |                  |   |       |                |  |   |             |   |              |   |  |  |   | (252    | )
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) financing activities of continuing operations           |  |                                      | (39,071 | ) |                  |   | (3,915 | )              |  |   | 39,850       |   |              |   |   |  |   | (3,136  | )
|Cash provided by financing activities of discontinued operations                   |  |                                      |        |   |                  |   |       |                |  |   |             |   |              |   |  |  |   |        |  
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) financing activities                                    |  |                                      | (39,071 | ) |                  |   | (3,915 | )              |  |   | 39,850       |   |              |   |  |  |   | (3,136  | )
|Effect of exchange rate changes on cash on cash and cash equivalents               |  |                                      |        |   |                  |   |       |                |  |   | 475          |   |              |   |  |  |   | 475     |  
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  
|Cash provided by (used in) all activities                                          |  | $                                    | (42,799 | ) |                  | $ | 687    |                |  | $ | (167         | ) |              | $ |  |  | $ | (42,279 | )
|                                                                                   |  |                                      |         |   |                  |   |        |                |  |   |              |   |              |   |   |  |   |         |  

13. Subsequent Events

2006 Credit Facility

On October 27, 2006, Willbros USA, Inc., a wholly-owned subsidiary of the Company,
entered into a new $100,000 three-year senior secured synthetic credit facility with a group of lenders led by Calyon (the 2006 Credit Facility). The 2006 Credit Facility replaces the Companys 2004 Credit Facility which was
scheduled to expire in March 2007. The Company may elect to increase the total capacity under the 2006 Credit Facility to $150,000, with consent from Calyon. The 2006 Credit Facility may be used for standby and commercial letters of credit,
borrowings or a combination thereof. Borrowings, which may be made up to $25,000 less the amount of any letter of credit advances or Financial Letters of Credit, must be repaid at least once a year and no new revolving advances made for a period of
10 consecutive business days thereafter. Fees payable under the 2006 Credit Facility include a Facility Fee at a rate per annum equal to 5.0% of the aggregate commitments, payable quarterly in arrears (the Facility Fee will be reduced to 2.75% if
the Company obtains a rating from S&P and Moodys greater than B and B2, respectively), and a letter of credit fee equal to 0.125% per annum of aggregate commitments. Interest is payable quarterly in arrears at the adjusted base rate
minus 1.00% or at a Eurodollar rate at the Companys



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WILLBROS GROUP, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share
amounts)

(Unaudited)

13.
Subsequent Events (continued)

option. The 2006 Credit Facility is collateralized by substantially all of the Companys assets, including stock of
the Companys principal subsidiaries. The 2006 Credit Facility contains a requirement for the maintenance of a $10 million minimum cash balance, prohibits the payment of cash dividends and include customary affirmative and negative covenants,
such as limitations on the creation of new indebtedness and on certain liens, restrictions on certain transactions and payments and maintenance of a maximum senior leverage ratio, a minimum fixed charge coverage ratio and minimum tangible net worth
requirement. A default may be triggered by events such as a failure to comply with financial covenants or other covenants, a failure to make payments when due, a failure to make payments when due in respect of or a failure to perform obligations
relating to debt obligations in excess of $5,000, a change of control of the Company (as defined by the 2006 Credit Facility) or certain insolvency proceedings as defined by the 2006 Credit Facility. The 2006 Credit Facility is guaranteed by the
Company and certain other subsidiaries. Debt issue costs associated with the 2006 Credit Facility, which are expected to be in excess of $2,000, will be amortized over the three-year term of the 2006 Credit Facility ending October 2009.

As defined in the 2006 Credit Facility, the Company is prohibited from making any investments, capital expenditures or otherwise funding the
Companys Nigeria Operations on a cumulative basis above a maximum of $15,000 from October 27, 2006 through June 29, 2007. As of June 30, 2007, the maximum of $15,000 reduces by $5,000 to a cumulative funding level not to exceed
$10,000.

Private Placement of Common Stock

On October 27, 2006, the Company sold 3,722,360 shares of its common stock in a private placement (the Private Placement). The selling price was $14.00 per share which was a discount of 10% based on
the Companys closing stock price of $15.50 on October 24, 2006. In addition, the buyers of the common stock acquired warrants to purchase an additional 558,354 shares at an exercise price of $19.03 per share. Each warrant will be
exercisable, in whole or in part, until 60 months from the date of issuance. The common shares, the warrants and the common shares issuable upon exercise of the warrants have not been registered under the Securities Act of 1933 and may not be
offered or sold in the United States absent registration or an applicable exemption from registration requirements. Net proceeds after deal costs are estimated to be $49,000. Private Placement net proceeds will be used for general corporate purposes
primarily to support the start-up of several new projects in the United States and Canada.

Registration Rights Agreement

In connection with the Private Placement of the common shares and the warrants, on October 27, 2006 (the Closing Date) the Company
entered into a Registration Rights Agreement with the buyers (the Registration Rights Agreement). The Registration Rights Agreement requires the Company to file a registration statement (the Registration Statement) with the
Securities and Exchange Commission as soon as practicable, but in no event later than 60 days after the Closing Date to register the resale from time to time by the buyers of the common shares and warrant shares issued or issuable upon exercise of
the warrants, without regard to any limitations on exercise of the warrants. Additionally, the Company agreed to use its reasonable best efforts to cause the Registration Statement to be declared effective under the Securities Act as soon as
practicable but in no event later than 120 days after the Closing Date. In the event of a delay in the filing or effectiveness of the Registration Statement, or for any period during which the effectiveness of the registration statement is not
maintained or is suspended by the Company other than as permitted under the Registration Rights Agreement, the Company will pay each buyer an amount in cash equal to one and one-quarter percent (1.25%) of such buyers aggregate purchase
price of its registrable securities  as provided in the purchase agreement, but the Company shall not be required to pay any buyer an aggregate amount that exceeds 10.0% of such buyers aggregate purchase price.



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ITEM 2. MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS (In thousands, except share and per share amounts or unless otherwise noted)

The following discussion should be read in conjunction with the unaudited condensed consolidated financial statements for the three-month and nine-month
interim periods ended September 30, 2006 and 2005, included in Item 1 of this report, and the consolidated financial statements and Managements Discussion and Analysis of Financial Condition and Results of Operations, including
Critical Accounting Policies, included in our Annual Report on Form 10-K for the year ended December 31, 2005.

OVERVIEW

We derive our revenue from engineering, construction and project management activities provided to the oil, gas and power industries and government
entities. Through the Company and our predecessors, we have provided services to customers in over 55 countries. For the quarter ended September 30, 2006, we generated revenue from continuing operations primarily in Canada, Oman and the United
States. We obtain our work through competitive bidding and through negotiations with prospective clients. Contract values may range from a few thousand dollars to several hundred million dollars and contract durations range from a few weeks to more
than two years.

Our strategy is to deploy our resources in markets for our engineering and construction services which can provide the
highest risk adjusted return, while maintaining a balanced backlog with respect to commercial and political risks and market presence. Our overall strategy has not changed. However, as the fundamental drivers in different markets around the world
change, our tactical approach is continuously adjusted and refined. As a result of our ongoing evaluation of the Companys operations and markets, we are in the process of employing a new set of tactics to optimize the risk adjusted returns we
seek. In late June 2006, this evaluation process resulted in our decision to sell our operations in Nigeria. The Company concluded that the operating and commercial risks associated with doing business in Nigeria have exceeded the Companys
acceptable risk levels.

An international investment bank has been engaged to sell the Companys interest in its Nigeria operations.
The Company expects to be able to reach an agreement on the sale by the end of the first quarter of 2007 or shortly thereafter. An online data room has been created and negotiations with potential buyers have begun. The sale of the majority of our
Venezuela operations and assets was completed in August 2006. The remainder of the Venezuela assets is expected to be sold during the fourth quarter of 2006. The sale of the TXP-4 Plant in Opal, Wyoming, was completed in the first quarter of 2006.
Therefore, included in discontinued operations are the financial results of the TXP-4 Plant and the Nigeria and Venezuela operations and assets (collectively the Discontinued Operations).

We continue to make progress on our plan to exit Latin America and Nigeria as we refocus our attention and resources to North America and a few other
selected international markets. We also expect to benefit from additional cost savings which we can realize through a more opportunistic approach to our international business currently operating from our base in Oman where we are well positioned
for project work in the Middle East and North Africa.

We have identified over $11 billion of qualified project opportunities with
approximately half of these opportunities being in North America. Since December 31, 2005, backlog has increased from $240 million to $763 million, driven primarily by new opportunities in the United States and Canada. However, this is a
decrease from the Companys record backlog at June 30, 2006 of $1.2 billion. This is due to our election to terminate our participation in a $600 million EPC project in North America. Changes by the client in scope and schedule negatively
impacted expected utilization of our construction assets and potential future margins on this project which caused it to no longer be attractive to Willbros. Construction was not anticipated to begin until mid-2007, thus we chose not to commit
resources to an increasingly uncertain schedule. Given the robust market, we are highly confident of obtaining multiple prospects in the near term to replace this cancelled work. These prospects offer the opportunity to keep our construction
resources fully engaged and to generate the highest possible return on those assets.

We believe the fundamentals supporting the demand for
engineering and construction services for the oil, gas and power industries indicate that the market for our services will be strong for the next two years and possibly longer. Increased bid activity in our markets, particularly in North America,
support our view that the infrastructure needed to move greater volumes of hydrocarbons from new supply areas is inadequate and new capacity additions to pipeline infrastructure are required. The strength of the markets for our services, in North
America



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and in other regions outside Nigeria and Venezuela, supports our expectation that we can derive additional revenue to offset the reduction of revenue in
Nigeria and Venezuela. In the July 24, 2006 Oil & Gas Journal, a review of the Lehman Bros. Oil and Gas Exploration and Production Spending Survey notes that expenditures for 2006 are estimated to be approximately $261 billion,
a 21.3% increase over 2005 expenditures and up from the 14.7% increase the survey forecasted for 2006 in December 2005. Notably, the greatest expected increase was 27.7% in the United States. Companies surveyed also indicated that, on average, they
would reduce future spending if oil prices fell to $42.00 per barrel and natural gas prices to $5.00 per thousand cubic feet. Since we believe the infrastructure Willbros engineers and constructs is an important element in the monetization of these
exploration and production investments, we have a high level of confidence that the projects and work prospects we have identified and qualified as future work opportunities will proceed unless prevailing prices for oil and gas decline significantly
from current levels. The rate of growth in investment in the United States market also improves the relative attractiveness of that market for our services, and the move toward liquefied natural gas continues to bring opportunities to Willbros, both
in North America and in the producing/exporting countries.

In the United States and Canada, oil and gas exploration and production
spending is estimated by Lehman Bros. to be over $90 billion in 2006, compared to actual expenditures in 2005 of almost $73 billion. This nearly 24% increase in expected expenditures in the United States and Canada supports our view that new
infrastructure additions will be required to transport new oil and gas discoveries from new or expanding areas of supply. The high level of engineering activity we are experiencing in the United States and Canada also supports our belief that the
level of demand for our services will remain high for the short- to mid-term, since heightened levels of engineering activity generally lead to increased construction activity. Revenue for the nine months ended September 30, 2006 for United
States & Canada was up 94.0% over the same period in 2005, another indication that supports our belief that the demand for our services will be strong for at least the next several years. Since December 31, 2005, backlog has
increased to $763 million, driven primarily by new opportunities in the United States and Canada.

In the international sector, Lehman
Bros. expects expenditure increases of over 20%, from $142 billion in 2005 to an estimated $170 billion in 2006. Our analysis of international opportunities identified demand for our services in Angola, Algeria and Saudi Arabia, some of which can be
addressed with resources redeployed from Nigeria and Venezuela. We expect to pursue these markets opportunistically to replace a portion of the operations discontinued in Nigeria and Venezuela. Our operation in Oman, which generated revenue of
$46,076 in the first nine months of 2006 as compared to $18,700 in the same period last year, currently has multiple projects under contract and is expected to generate revenue at the current level through the end of the year.

Financial Transactions

On October 27, 2006, we
concluded two financial transactions that were required to support our expected growth. Willbros USA, Inc., a wholly-owned subsidiary of the Company, entered into a new $100,000 three-year senior secured synthetic credit facility (the 2006
Credit Facility) with a group of lenders led by Calyon New York Branch (Calyon). Concurrent with the creation of the 2006 Credit Facility, the predecessor 2004 Credit Facility was terminated and $37,169 of outstanding letters of
credit were reissued under the 2006 Credit Facility. At November 7, 2006, the 2006 Credit Facility has availability of $57,831 and is scheduled to expire in October 2009. The Company may elect to increase the total capacity under the 2006
Credit Facility to $150,000, with consent from Calyon. The 2006 Credit Agreement includes customary affirmative and negative covenants, such a limitations on the creation of new indebtedness and an certain liens, restrictions on certain transactions
and payments and maintenance of a maximum senior leverage ratio, a minimum fixed charge coverage ratio and a minimum tangible net work requirement. Additionally, the Company is prohibited from making any investments, capital expenditures or
otherwise funding the Companys Nigeria operations on a cumulative basis above a maximum of $15,000 from October 27, 2006 through June 29, 2007. At June 30, 2007, the maximum of $15,000 reduces by $5,000 to a cumulative funding
level not to exceed $10,000.

Also on October 27, 2006, the Company sold 3,722,360 shares of its common stock in a private placement
(the Private Placement). The selling price was $14.00 per share which was a discount of 10% based on the Companys closing stock price of $15.50 on October 24, 2006. Net proceeds after estimated deal costs were approximately
$49,000. Private Placement net proceeds will be used for general corporate purposes primarily to support the start-up of several new projects in United States and Canada.

The buyers of the Private Placement common stock also acquired warrants to purchase an additional 558,354 shares at an exercise price of $19.03 per share. Each warrant will be exercisable, in whole or in part for a
period of 60 months from the date of issuance. Additional information on the Private Placement and the 2006 Credit Facility is available in Note 13  Subsequent Events in the Notes to Condensed Consolidated Financial Statements in this Form
10-Q.



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The sale of our Nigeria operations and assets is expected to provide an additional infusion of capital
that will allow us to expand our operations and take advantage of the current markets.

Discontinued Operations

In Nigeria we continue to see the spread and escalation of hostilities against oil and gas installations and the work forces charged with construction,
maintenance and operation of those installations. The attacks by militants have directly and indirectly affected the Company on a continuous basis since the hostage taking incident of February 18, 2006. However, since mid-June, the situation in
Nigeria has worsened, with attacks increasing throughout the country. Additional production operations in the Delta area have been and remain, shut in. These disruptions have had the combined effect of supporting higher oil prices and either
frustrating projects or creating a force majeure event for our ongoing projects in Nigeria. In the current work environment, with the Nigeria government and local operating companies unable to provide the security necessary for us to conduct project
operations, our project activities are frustrated and we cannot expose our personnel on an ongoing basis to the very real and escalating threat posed by these militant and hostile community disturbances. Further, there exists the ongoing possibility
that labor unrest could escalate into violence at the Choba facility due to a continuing labor dispute over a new May 2006 labor agreement.

In late September 2006, violence in the Port Harcourt area escalated to the point where we elected to transfer employees out of this area to ensure their continued safety. We have subsequently reduced our Choba facility staff to a minimum
number required to support a caretaker status. Critical ongoing support functions have been shifted to Lagos and other locations outside the Port Harcourt area.

Discontinued Operations reported a $17,136 loss or $0.80 loss per share during the three-month period ended September 30, 2006, as compared to a $8,603 loss or a $0.41 loss per share for the same period in 2005.
Net loss for the nine-month periods ended September 30, 2006 and 2005 were $46,249 or $2.15 per share and $13,534 or $0.64 per share, respectively. The loss from Discontinued Operations for the three-month and nine-month periods ended
September 30, 2006 is almost entirely attributable to our Nigeria operations. The operating results in Nigeria for the third quarter of 2006 were negatively impacted by schedule delays; increasing costs related to labor, equipment, materials,
and security; disputes with clients related to change orders, and the implementation of our Nigeria exit strategy.

We continue to work
with our clients in achieving settlements on unapproved change orders and claims related to this years events in Nigeria. In addition to contractually pursuing recovery of substantial costs associated with force majeure and other work
interruption events, we have incurred significant costs under fixed-sum contracts that are not billable because we are unable to continue work and achieve the billing milestones. There can be no certainty at this time that we will be able to
satisfactorily resolve the open change orders and claims with our clients, although several clients have made a substantial effort to work with us. We are also in the process of eliminating all Nigeria related costs, except for those that are
essential to support the sale and the operations in the Lagos area and adjacent countries.

We are encouraged by the level of interest
expressed by several qualified buyers with strong Nigeria connections. The Company expects to be able to reach an agreement on the sale of its Nigeria operations by the end of the first quarter of 2007 or shortly thereafter. Additional financial
disclosures on Discontinued Operations are provided in Note 2  Discontinuance of Operations and Asset Disposal in the Notes to Condensed Consolidated Financial Statements in this Form 10-Q.

The remainder of Managements Discussion and Analysis of Financial Conditions and Results of Operations pertains only to continuing operations
unless noted otherwise. Information on discontinued operations for TXP-4 Plant, Venezuela and Nigeria is available in Note 2  Discontinuance of Operations and Asset Disposal in the Notes to Condensed Consolidated Financial Statements in this
Form 10-Q.

Financial Summary

For the
quarter ended September 30, 2006, we had a loss of $4,965 or $0.23 per share on revenue of $125,466. This compares to revenue of $65,034 in the same quarter in 2005, when we reported a loss of $8,950 or $0.42 per share. The third quarter 2006
loss approximates the second quarter 2006 loss of $5,104. The third quarter loss is primarily attributable to delays in starting certain projects and substantial idle equipment costs for equipment secured several months in advance of expected
project start dates to ensure availability. Besides the idle equipment weakening third quarter margins, a significant portion of the current revenue is being derived from lower margin procurement activities completed for clients in Canada and for US
engineering activities that were bid at lower margins in anticipation of receiving significant EPC contracts.



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Revenue of $125,466 for the third quarter of 2006 represents a $60,432 (92.9%) increase over the
revenue for the same period in 2005. The Internationaland theUnited States & Canadasegments revenue increased $15,329 (313.4%) and $45,103 (75.0%), respectively, in the third quarter of 2006 as compared to the third
quarter of 2005. Third quarter 2006 revenue increased 5.3% from the previous quarter, continuing a series of quarter-on-quarter revenue increases during 2006.

Contract costs increased $53,988 (90.8%) to $113,418 in the third quarter of 2006 as compared to the same quarter of 2005 due to activity increases in both operating segments. Contract margin in the third quarter
of 2006 as compared to the third quarter of 2005 rose 1.0% to 9.6%. Canada margin was 15.8%, compared to a segment total of 9.5% for the quarter. The higher margins in Canada were partially offset by lower margins in U.S. construction related to the
tight labor market and delayed start on certain projects.

G&A increased $716 (6.9%) to $11,092 in the third quarter of 2006 from
$10,376 in the same quarter of last year primarily due to a charge of $1,206 related to the August 10, 2006 separation agreement between the Company and its former CFO. Additionally, insurance cost (primarily D&O coverage) increased $490
due to the 2005 investigation into matters that ultimately led to a separate SEC/DOJ investigation, and salaries, wages and benefits increased $197 to support increased operations which resulted in a greater than 90% increase in revenue from period
to period. Consulting fees increased $557 due primarily to Sarbanes-Oxley compliance. The remaining net favorable variance of $1,734 is comprised primarily of decreases in legal, accounting, and auditing fees. The 2005 period costs were
extraordinarily high due to the investigation into matters that ultimately led to a separate SEC/DOJ investigation. During the coming months, we will continue to focus on reducing costs to establish a G&A run rate of 6% to 8% of revenue from
continuing operations. G&A as a percentage of revenue for the three and nine-month periods ended September 30, 2006 was 8.8% and 9.4%, respectively.

We recorded income tax expense of $379 on a loss from continuing operations before income taxes of $4,586 for the three-month period ended September 30, 2006. The circumstances that gave rise to the Company
recording provisions for income taxes when we had a loss before income taxes, are operations in the United States, Canada, and Oman generate taxable income and thus generate tax liabilities in each of those separate tax jurisdictions. Moreover,
transfer pricing principles require the Company to allocate expenses to certain subsidiaries, receiving the benefit of such expenses. Some tax jurisdictions either do not allow tax deductions or there is no tax benefit derived from expenses
allocated to these subsidiaries.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

In our Annual Report on Form 10-K for the year ended December 31, 2005, we identified and disclosed our significant accounting policies. Other than
the adoption as of January 1, 2006, SFAS No. 123R, Share Based Payments, SFAS No. 151, Inventory Costs, SFAS No. 154, Accounting Changes and Error Corrections, SFAS No. 155,
Accounting for Certain Hybrid Financial Instruments, SFAS No. 157, Fair Value Measurements, SAB No. 108, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year
Financial Statements, FIN No. 48, Accounting for Uncertainty in Income Taxes, and FSP No. AUG AIR-1, the impact of which are discussed in Note 4 to the condensed consolidated financial statements included in this Form 10-Q,
there have been no changes to our significant accounting policies during the nine-month period ended September 30, 2006.



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OTHER FINANCIAL MEASURES

EBITDA

We use EBITDA (earnings before net interest, income taxes, depreciation and amortization) as part of our overall
assessment of financial performance by comparing EBITDA between accounting periods. We believe that EBITDA is used by the financial community as a method of measuring our performance and of evaluating the market value of companies considered to be
in businesses similar to ours. EBITDA for the nine months ended September 30, 2006 was $(1,475) as compared to $(14,621) for the same period in 2005, a $13,146 (89.9%) improvement.

A reconciliation of EBITDA to GAAP financial information follows:



|                                     |  |                                |         |   |      |   |         |  
|------------------------------------ |  | ------------------------------ | ------- | - | ---- | - | ------- | -
|                                     |  | Nine Months EndedSeptember 30, |        
|                                     |  | 2006                           |         |   | 2005 |  
|Net loss                             |  | $                              | (18,598 | ) |      | $ | (23,836 | )
|Interest, net                        |  |                                | 6,132   |   |      |   | 2,637   |  
|Provision (benefit) for income taxes |  |                                | 1,811   |   |      |   | (1,969  | )
|Depreciation and amortization        |  |                                | 9,180   |   |      |   | 8,547   |  
|                                     |  |                                |         |   |      |   |         |  
|EBITDA                               |  | $                              | (1,475  | ) |      | $ | (14,621 | )
|                                     |  |                                |         |   |      |   |         |  

BACKLOG

We define anticipated contract revenue as backlog when the award of a contract is reasonably assured, generally upon the execution of a definitive agreement or contract. Anticipated revenue from post-contract award
processes, including change orders, extra work, variations in the scope of work and the effect of escalation or currency fluctuation formulas, is not added to backlog until realization is reasonably assured. Backlog as of September 30, 2006 was
$763,022 compared to $240,373 at December 31, 2005. The backlog increased $522,649 primarily due to several large projects in U.S. engineering, up $316,609 & construction, up $151,675. The increased activity in the oil sands region of
Canada contributed to the increase in backlog for Canada.

International backlog is $58,583 mainly for work in Oman. United
States & Canada backlog is $704,439.

Backlog for Discontinued Operations is $449,280 and $575,982 at September 30, 2006
and December 31, 2005, respectively. This backlog is primarily associated with our Nigeria operations.

RESULTS OF OPERATIONS

Our contract revenue and contract costs are significantly impacted by the capital budgets of our clients and the timing and location of development
projects in the oil, gas and power industries worldwide. Contract revenue and cost variations by country from year to year are the result of: (a) entering and exiting work countries; (b) the execution of new contract awards; (c) the
completion of contracts; and (d) the overall level of demand for our services.

Our ability to be successful in obtaining and
executing contracts can be affected by the relative strength or weakness of the U.S. dollar compared to the currencies of our competitors, our clients and our work locations.



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Three Months Ended September 30, 2006 Compared to Three Months Ended September 30, 2005

Contract Revenue

Contract revenue increased $60,432
(92.9%) to $125,466 due to increases in both the International and United States & Canadasegments. A quarter-to-quarter comparison of revenue is as follows:



|                       |  |                                  |         |      |   |          |  |               |        |  |       |  
|---------------------- |  | -------------------------------- | ------- | ---- | - | -------- |  | ------------- | ------ |  | ----- | -
|                       |  | Three Months Ended September 30, |        
|                       |  | 2006                             |         | 2005 |   | Increase |  | PercentChange |       
|International          |  | $                                | 20,220  |      | $ | 4,891    |  | $             | 15,329 |  | 313.4 | %
|United States & Canada |  |                                  | 105,246 |      |   | 60,143   |  |               | 45,103 |  | 75.0  | %
|                       |  |                                  |         |      |   |          |  |               |        |  |       |  
|Total                  |  | $                                | 125,466 |      | $ | 65,034   |  | $             | 60,432 |  | 92.9  | %
|                       |  |                                  |         |      |   |          |  |               |        |  |       |  

International revenue increased $15,329 primarily due to a significant new project in Oman
in 2006, which generated approximately $11,150 in third quarter revenue. Additional net revenue increases of $4,179 were primarily the result of additional time and material work.

United States & Canadarevenue increased $45,103 primarily as a result of increased third quarter of 2006 business activity for U.S.
construction of $11,958, U.S. engineering of $14,902 and Canada of $24,041. The increase in Canada activity is partially attributable to the fourth quarter of 2005 start-up of our new Edmonton modular fabrication facility which generated revenue of
approximately $4,600 in the third quarter of 2006. Additionally, the award of several major projects in 2006 within the segment accounted for the majority of the remainder.

Contract Income

Contract income increased $6,444 (115.0%) to $12,048 in the third quarter of
2006 as compared to the same quarter in 2005. A quarter-to-quarter comparison of contract income is as follows:



|                       |  |                                  |        |             |      |   |      |   |             |  |     |          |  |               |       |  |       |  
|---------------------- |  | -------------------------------- | ------ | ----------- | ---- | - | ---- | - | ----------- |  | --- | -------- |  | ------------- | ----- |  | ----- | -
|                       |  | Three Months Ended September 30, |       
|                       |  | 2006                             |        | % ofRevenue |      |   | 2005 |   | % ofRevenue |  |     | Increase |  | PercentChange |      
|International          |  | $                                | 2,092  |             | 10.3 | % |      | $ | 385         |  | 7.9 | %        |  | $             | 1,707 |  | 443.4 | %
|United States & Canada |  |                                  | 9,956  |             | 9.5  | % |      |   | 5,219       |  | 8.7 | %        |  |               | 4,737 |  | 90.8  | %
|                       |  |                                  |        |             |      |   |      |   |             |  |     |          |  |               |       |  |       |  
|Total                  |  | $                                | 12,048 |             | 9.6  | % |      | $ | 5,604       |  | 8.6 | %        |  | $             | 6,444 |  | 115.0 | %
|                       |  |                                  |        |             |      |   |      |   |             |  |     |          |  |               |       |  |       |  

International contract income increased $1,707 in the third quarter of 2006 as compared to
the same quarter in 2005 primarily due to previously discussed Oman revenue increases as a result of additional projects.

United
States & Canada contract income increased $4,737 during the third quarter of 2006 as compared to the same quarter in 2005. Contract income increased primarily as a result of previously discussed revenue increases. Canada margin was
15.8%, compared to a segment total of 9.5%. The higher margins in Canada were partially offset by lower margins in U.S. construction related to increased cost due to a tight labor market and project startup delays.

Other Operating Expenses

Depreciation and
amortization increased $269 (9.0%) to $3,265 in the third quarter of 2006 from $2,996 in the same quarter of last year primarily due to the conversion of existing construction equipment rental agreements to capital leases during the quarter.

G&A increased $716 (6.9%) to $11,092 in the third quarter of 2006 from $10,376 in the same quarter of last year primarily due to
a one-time charge of $1,206 related to the August 10, 2006 separation agreement between the company and its former CFO. Additionally, insurance cost (primarily D&O coverage) increased $490 due to the 2005 investigation into matters that
ultimately led to a separate SEC/DOJ investigation. Salaries, wages



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and benefits increased $197 to support increased operations which resulted in a greater than 90% increase in revenue from period to period. Consulting fees
increased $557 due primarily to Sarbanes-Oxley compliance. The remaining net favorable variance of $1,734 is comprised primarily of decreases in legal, accounting, and auditing fees. The 2005 period costs were extraordinarily high due to the
investigation into matters that ultimately led to a separate SEC/DOJ investigation.

Non-Operating Items

Interest  net increased to $2,709 in the third quarter 2006 from $1,602 in the same quarter last year due primarily to additional interest
expense related to the issuance of the 6.5% Notes and the write-off of $432 in deferred debt issuance cost related to the 2004 Credit Facility, which was replaced by the 2006 Credit Facility.

Other  net increased to $432 in income in the third quarter of 2006 from $674 in expense in the same quarter of last year, a favorable
variance of $1,106. This variance is caused partially by a $348 reduction in foreign exchange losses. Additionally, the 2006 period includes gains on sales of property, plant and equipment of $522, all related to the sale of Canada real estate and
other equipment.

Income Tax  the Company recognized $379 of income tax expense on a loss of $4,586 before income taxes in the
three months ended September 30, 2006, a $1,473 increase in income tax expense as compared to the three months ended September 30, 2005 when a $1,094 tax benefit resulted from a loss of $10,044 before income taxes. The increase is mainly
due to more taxable income being generated in the United States, Canada and Oman.

Nine Months Ended September 30, 2006, Compared to Nine Months
Ended September 30, 2005

Contract Revenue

Contract revenue increased $175,654 (99.5%) to $352,181 due primarily to an increase in the United States & Canadasegment. A year-to-date comparison of revenue is as follows:



|                       |  |                                |         |      |   |          |  |               |         |  |       |  
|---------------------- |  | ------------------------------ | ------- | ---- | - | -------- |  | ------------- | ------- |  | ----- | -
|                       |  | Nine Months Ended September 30 |        
|                       |  | 2006                           |         | 2005 |   | Increase |  | PercentChange |        
|International          |  | $                              | 46,076  |      | $ | 18,700   |  | $             | 27,376  |  | 146.4 | %
|United States & Canada |  |                                | 306,105 |      |   | 157,827  |  |               | 148,278 |  | 94.0  | %
|                       |  |                                |         |      |   |          |  |               |         |  |       |  
|Total                  |  | $                              | 352,181 |      | $ | 176,527  |  | $             | 175,654 |  | 99.5  | %
|                       |  |                                |         |      |   |          |  |               |         |  |       |  

International revenue increased $27,376 primarily due to a significant new project in Oman
in 2006 that generated approximately $20,422 in revenue in the nine-month period ended September 30, 2006. Additional net revenue increases of $6,954 were primarily the result of additional time and material work.

United States & Canadarevenue increased $148,278 primarily a result of increased 2006 business activity for U.S. construction of
$45,680, U.S. engineering of $25,392 and Canada of $78,776. The increase in Canada activity is primarily attributable to an increase in maintenance revenue of approximately $70,000. Additional net revenue increases of $8,776 were primarily the
result of increases in modular fabrication revenues.

Contract Income

Contract income increased $16,394 (108.1%) to $31,553 in the first nine months of 2006 as compared to the same period in 2005. A period-to-period comparison of contract income is as follows:



|                       |  |                                |        |             |      |   |      |   |             |  |     |          |  |               |        |  |       |  
|---------------------- |  | ------------------------------ | ------ | ----------- | ---- | - | ---- | - | ----------- |  | --- | -------- |  | ------------- | ------ |  | ----- | -
|                       |  | Nine Months Ended September 30 |       
|                       |  | 2006                           |        | % ofRevenue |      |   | 2005 |   | % ofRevenue |  |     | Increase |  | PercentChange |       
|International          |  | $                              | 4,683  |             | 10.2 | % |      | $ | 1,447       |  | 7.7 | %        |  | $             | 3,236  |  | 223.6 | %
|United States & Canada |  |                                | 26,870 |             | 8.8  | % |      |   | 13,712      |  | 8.7 | %        |  |               | 13,158 |  | 96.0  | %
|                       |  |                                |        |             |      |   |      |   |             |  |     |          |  |               |        |  |       |  
|Total                  |  | $                              | 31,553 |             | 9.0  | % |      | $ | 15,159      |  | 8.6 | %        |  | $             | 16,394 |  | 108.1 | %
|                       |  |                                |        |             |      |   |      |   |             |  |     |          |  |               |        |  |       |  

International contract income increased $3,236 primarily due to previously discussed
revenue increases in Oman as a result of new projects in the first nine months of 2006 compared to the first nine months in 2005.



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United States & Canada contract income increased $13,158 and the first nine months of
2006 compared to the first nine months of 2005. Contract income increased primarily as a result of previously discussed revenue increases. Canada margin was 10.5%, compared to a segment total of 8.8%. The higher margins in Canada were partially
offset by lower margins in U.S. construction related to increased cost due to the tight labor market and project start up delays.

Other Operating
Expenses

Depreciation and amortization increased $633 (7.4%) to $9,180 in the first nine months of 2006 from $8,547 in the same
period last year primarily due to the start-up of the Edmonton, Canada module fabrication facility late in 2005 and the conversion of existing construction equipment rental agreements into capital leases.

G&A increased $2,871 (9.5%) to $33,133 in the first nine months of 2006 from $30,262 in the comparable 2005 period. The 2006 period includes a
one-time charge of $1,206 related to the August 10, 2006 separation agreement between the Company and its former CFO. Additional increases were attributable to insurance (particularly D&O coverage) $2,482 due to the 2005 the investigation
into matters that ultimately lead to a separate SEC/DOJ investigation; salaries, wages and benefits $1,397 to support increased operations which resulted in a greater than 90% revenue increase from period to period; tax consultants $1,289 related to
the Companys increased need for compliance and planning assistance as a result of its growth. Offsetting these increases were decreases in accounting and auditing fees $2,529 and legal fees $2,394, both due to extraordinarily high levels in
2005 due to the investigation into matters that ultimately led to a separate SEC/DOJ investigation. The remaining net $690 increase is due, as previously mentioned, to support increased operations.

Non-Operating Items

Interest
net increased to $6,132 in the first nine months of 2006 from $2,637 in the same period last year due primarily to additional interest expense related to the issuance of the 6.5% Notes and to the write-off of $432 of deferred debt issuance cost
related to the 2004 Credit Facility which was replaced by the 2006 Credit Facility.

Other  net decreased to $105 in
income in the first nine months of 2006 from $482 in income in the same period last year. The $377 decrease is due partially to a $108 increase in foreign currency exchange losses. Additionally, the 2006 period includes $589 in gains on sales of
property, plant and equipment, including a $522 gain on the sale of Canada real estate and other equipment. The 2005 period includes $885 in gains on sales of property, plant and equipment, including a $1,032 gain on the sale of the Companys
Broken Arrow, Oklahoma yard.

Income Tax the Company recognized $1,811 of income tax expense on a loss of $16,787 before
income taxes in the nine months ended September 30, 2006, a $3,780 increase in income tax expense as compared to the nine months ended September 30, 2005 when a $1,969 tax benefit resulted from a loss of $25,805 before income taxes. The
increase is mainly due to more taxable income being generated in the United States, Canada and Oman.

LIQUIDITY AND CAPITAL RESOURCES

Capital Requirements

Our primary requirements for
capital are to acquire, upgrade and maintain equipment, provide working capital for current projects, finance the mobilization of employees and equipment to new projects, establish a presence in countries where we perceive growth opportunities and
finance the possible acquisition of new businesses and equity investments. Historically, we have met these capital requirements primarily from operating cash flows, borrowings under our credit facility and debt and equity financings.

Working Capital

Cash and cash equivalents decreased
$40,457 (72.3%) to $15,476 at September 30, 2006 from $55,933 at December 31, 2005. $29,694 of the decrease relates to discontinued operations. Of the remaining $10,763, significant causes of the decrease were cash used in ongoing
operations of $12,717, investments in new property, plant and equipment of $12,389, repayment of notes payable and long-term debt of $9,519, costs to issue new debt of $3,776 and an increase in restricted cash of $1,500. Offsetting these decreases
were increases due to the issuance of $19,500 in new 6.5% Senior Convertible Notes, proceeds from the issuance of common stock $2,226, and proceeds from the sale of property, plant and equipment of $8,243.



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Working capital, excluding the net assets and liabilities of discontinued operations, decreased $27,779
(31.6%) from December 31, 2005. The primary causes were from a decrease in cash and cash equivalents of $40,457 (detailed above), an increase in accounts receivable of $18,428, an increase in contract costs and recognized income not yet
billed of $7,344, an increase in prepaid expenses of $4,420 and accrued liabilities of $14,637 and an increase in contract billings in excess of cost and recognized income of $5,608.

Cash flows used in continuing operations for the year through September 30, 2006 improved by $6,203 compared to the same period in 2005, to a
negative cash flow of $12,717 from a negative cash flow of $18,920.

2.75% Convertible Senior Notes

On March 12, 2004, the Company completed a primary offering of $60,000 of 2.75% Convertible Senior Notes (the 2.75% Notes). On
April 13, 2004, the initial purchasers of the 2.75% Notes exercised their option to purchase an additional $10,000 aggregate principal amount of the notes. Collectively, the primary offering and purchase option of the 2.75% Notes totaled
$70,000. The 2.75% Notes are general senior unsecured obligations. Interest is paid semi-annually on March 15 and September 15 and payments began on September 15, 2004. The 2.75% Notes mature on March 15, 2024 unless the notes
are repurchased, redeemed or converted earlier. The holders of the 2.75% Notes may, under certain circumstances, convert the notes into shares of the Companys common stock at an initial conversion ratio of 51.3611 shares of common stock per
$1,000.00 principal amount of notes (representing a conversion price of approximately $19.47 per share resulting in 3,595,277 shares issuable at September 30, 2006 subject to adjustment in certain circumstances). The notes will be convertible
only upon the occurrence of certain specified events including, but not limited to, if, at certain times, the closing sale price of the Companys common stock exceeds 120% of the then current conversion price, or $23.36 per share, based on the
initial conversion price.

On September 22, 2005, the Company entered into an amendment of the indenture with holders of the 2.75%
Notes (the Indenture Amendment). The Indenture Amendment extended the initial date on or after which the 2.75% Notes may be redeemed by the Company to March 15, 2013 from March 15, 2011.

6.5% Senior Convertible Notes

On December 22,
2005, the Company entered into a purchase agreement (the Purchase Agreement) for a private placement of $65,000 aggregate principal amount of its 6.5% Senior Convertible Notes due 2012 (the 6.5% Notes). The private placement
closed on December 23, 2005. The net proceeds of the offering were used to retire existing indebtedness and provide additional liquidity to support working capital needs for our current level of operations. During the first quarter of 2006, the
initial purchasers of the 6.5% Notes exercised their options to purchase an additional $19,500 of the 6.5% Notes, bringing the aggregate principal amount of the private placement to $84,500. The 6.5% Notes are general senior unsecured obligations.
Interest is payable semi-annually on June 15 and December 15, and payments began on June 15, 2006.

The 6.5% Notes are
convertible into shares of the Companys common stock at a conversion rate of 56.9606 shares of common stock per $1,000.00 principal amount of notes (representing a conversion price of approximately $17.56 per share resulting in 4,813,171
shares issuable at September 30, 2006 subject to adjustment in certain circumstances), subject to adjustment in certain circumstances.

2004
Credit Facility

On March 12, 2004, the existing $125,000 June 2002 credit agreement with Calyon was amended, restated and
increased to $150,000 (the 2004 Credit Facility). The 2004 Credit Facility would have matured on March 12, 2007. The 2004 Credit Facility was available for standby and commercial letters of credit, borrowings or a combination
thereof. Borrowings were limited to the lesser of 40% of the borrowing base or $30,000. Interest was payable quarterly at a base rate plus a margin ranging from 0.75% to 2.00% or on a Eurodollar rate plus a margin ranging from 1.75% to 3.00%. The
2004 Credit Facility was collateralized by substantially all of the Companys assets, including stock of the Companys principal subsidiaries, prohibited the payment of cash dividends and required the Company to maintain certain financial
ratios. The borrowing base was calculated using varying percentages of cash, accounts receivable, accrued revenue, contract cost and recognized income not yet billed; property, plant and equipment, and spare parts.

During the period from August 6, 2004 to August 18, 2006, the Company entered into various amendments and waivers to the 2004 Credit Facility
with its syndicated bank group to waive non-compliance with certain financial and non-financial covenants. Among other things, the amendments provided that (1) certain financial covenants and reporting obligations were waived and/or modified to
reflect the Companys current and anticipated



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future operating performance, (2) the ultimate reduction of the facility to $70,000 for issuance of letter of credit obligations only, and (3) a
requirement for the Company to maintain a minimum cash balance of $15,000.

Primarily as a result of the negative financial impact that
recent events in Nigeria have had on operations and the Companys decision to sell the Nigeria operations and assets, the Company was not in compliance with certain financial covenants in the 2004 Credit Facility at September 30, 2006.

On August 18, 2006 the Company entered into a Sixth Amendment and Temporary Waiver Agreement (the Sixth Amendment) which
waived the Companys failure to comply with certain financial covenants of the 2004 Credit Facility during the fiscal quarter ended June 30, 2006 until the earlier of (i) September 30, 2006 or (ii) the occurrence of a
waiver default, which is a breach by the Company of any covenant, a material breach of any representation and warranty or the occurrence of any default or event of default under the 2004 Credit Facility, other than the defaults which
were temporarily waived by the Sixth Amendment. The Sixth Amendment further amended the 2004 Credit Facility to reduce the total commitment to $50,000 and provided for a letter of credit limit of $50,000 less the face amount of letters of credit
issued prior to August 18, 2006, and provided that each new letter of credit must be fully cash collateralized and that a letter of credit fee of 0 25% be paid for each cash collateralized letter of credit. The Sixth Amendment expired on
September 30, 2006, and availability under the 2004 Credit Facility was reduced to zero. On October 27, 2006, the Company entered into a new $100,000 synthetic credit facility and reissued under this facility all the then outstanding
letters of credit (see Note 13). Effective October 27, 2006, in connection with the closing of the 2006 Credit Facility discussed below, the Company terminated the 2004 Credit Facility.

As of September 30, 2006, there were no borrowings under the 2004 Credit Facility and there were $37,393 in outstanding letters of credit, of which
$12,461 related to continuing operations.

2006 Credit Facility

On October 27, 2006, Willbros USA, Inc., a wholly-owned subsidiary of the Company, entered into a new $100,000 three-year senior secured synthetic
credit facility with a group of lenders led by Calyon (the 2006 Credit Facility). The 2006 Credit Facility replaces the 2004 Credit Facility which was scheduled to expire in March 2007. The Company may elect to increase the total
capacity under the 2006 Credit Facility to $150,000, with consent from Calyon. The 2006 Credit Facility may be used for standby and commercial letters of credit, borrowings or a combination thereof. Borrowings, which may be made up to $25,000 less
the amount of financial standby or commercial letters of credit, are payable at the maturity date, October 27, 2009. Interest is payable quarterly in arrears at the base rate minus 1.00% or at a Eurodollar rate at the Companys option. At
least once a year, all revolving advances must be repaid and no new revolving advances made for a period of 10 consecutive business days thereafter. Fees payable under the 2006 Credit Facility include a Facility Fee at a rate per annum equal to 5.0%
of the aggregate commitments, payable quarterly in arrears (the Facility Fee will be reduced to 2.75% if the Company obtains a rating from S&P and Moodys greater than B and B2, respectively), and a letter of credit fee equal to
0.125% per annum of aggregate commitments. The 2006 Credit Facility is collateralized by substantially all of the Companys assets, including stock of the Companys principal subsidiaries. The 2006 Credit Facility contains a
requirement for the maintenance of a $10,000 minimum cash balance, prohibits the payment of cash dividends and includes customary affirmative and negative covenants, such as limitations on the creation of new indebtedness and on certain liens,
restrictions on certain transactions and payments and maintenance of a maximum senior leverage ratio, a minimum fixed charge coverage ratio and minimum tangible net worth requirement. A default may be triggered by events such as a failure to comply
with financial covenants or other covenants, a failure to make payments when due, a failure to make payments when due in respect of or a failure to perform obligations relating to debt obligations in excess of $5,000, a change of control of the
Company or certain insolvency proceedings as defined by the 2006 Credit Facility. The 2006 Credit Facility is guaranteed by the Company and certain other subsidiaries. Debt issue costs associated with the 2006 Credit Facility, which are expected to
be in excess of $2,000, will be amortized over the three-year term of the 2006 Credit Facility ending October 2009.

As defined in the 2006
Credit Facility, the Company is prohibited from making any investments, capital expenditures or otherwise funding the Companys Nigeria Operations on a cumulative basis above a maximum of $15,000 from October 27, 2006 through June 29,
2007. As of June 30, 2007, the maximum of $15,000 reduces by $5,000 to a cumulative funding level not to exceed $10,000.



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Private Placement

On October 27, 2006, the Company sold 3,722,360 shares of its common stock in a private placement (the Private Placement). The selling price was $14.00 per share which was a discount of 10% based on
the Companys closing stock price of $15.50 on October 24, 2006. In addition, the buyers of the common stock acquired warrants to purchase an additional 558,354 shares at an exercise price of $19.03 per share. Each warrant will be
exercisable, in whole or in part, until 60 months from the date of issuance. Net proceeds after estimated deal costs are estimated to be $49,000. The Private Placements net proceeds will be used for general corporate purposes, primarily to
support the start-up of several new projects in the United States and Canada.

Liquidity

Continuing Operations We believe that cash flows from continuing operations and the net proceeds from the sale of the 6.5% Notes, which was
completed in the first quarter of 2006, and the Private Placement and 2006 Credit Facility entered into October 2006, will be sufficient to finance working capital and capital expenditures for our continuing operations and should give us the
liquidity and flexibility to perform the increasing volume of projects we are currently pursuing or have in backlog. Capital expenditures for equipment for 2006 are estimated at $25,000, a significant portion of which will be financed through
capital leases. However, should the DOJ, SEC, or OFAC, as a result of their investigations, criminally charge the Company or otherwise levy material civil and/or criminal fines or penalties against the Company, these events could have a material
adverse effect on the Companys liquidity and operations.

Discontinued Operations In Nigeria we continue to see the
spread and escalation of hostilities against oil and gas installations and the work forces charged with maintenance, construction and operation of these installations. The attacks by militants have directly and indirectly affected Willbros on a
continuous basis since the hostage taking incident of February 18, 2006. Since mid-June 2006, the situation in Nigeria has worsened, with attacks increasing throughout the country. Additional production operations in the Delta area have been,
and remain, shut in. These disruptions have had the combined effect of supporting higher oil prices and either frustrating projects or creating a force majeure event for the ongoing projects in Nigeria. In the current work environment, with the
Nigerian government and local operating companies unable to provide the security necessary for us to conduct project operations, our project activities are frustrated and we cannot expose our personnel on an ongoing basis to the very real and
escalating threat posed by these militant and hostile community disturbances. Further there exists the ongoing possibility that labor unrest could escalate into violence at the Choba facility due to a continuing labor dispute over a new May 2006
labor agreement.

In late September 2006, violence in the Port Harcourt area escalated to the point where we elected to transfer employees
out of this area to ensure continued safety. We have subsequently reduced our Choba facility staff to a minimum number required to support a caretaker status. Critical ongoing support functions have been shifted to Lagos and other locations outside
the Port Harcourt area.

We are in negotiations with our clients regarding the financial impact of schedule delays, increased labor costs,
increased equipment and material costs, disputed change orders, and heightened security concerns in order to mitigate the commercial impacts on us from these recent events in Nigeria. We continue to work with our clients to achieve settlements on
unapproved changes orders and claims related to this years events in Nigeria. There can be no certainty at this time that we will be able to satisfactorily resolve the open change orders and claims with our clients, although several clients
have made a substantial effort to work with us. We are also in the process of eliminating all Nigeria related costs, except for those that are essential to support the sale and the continuing operations in the Lagos area and nearby adjacent
countries

We are encouraged by the level of interest expressed by several qualified buyers with strong Nigeria connections. The Company
expects to be able to reach an agreement on the sale of its Nigeria operations by the end of the first quarter of 2007 or shortly thereafter.

The events that have negatively impacted our revenue, operating results and cash flow from discontinued operations are continuing. While we believe that these and other numerous factors could have an impact on our cash flow, both positively
and negatively, the majority of which, should they occur, could be funded from our future operations, our existing cash balances, our private placement of common stock and the limited funding available for discontinued operations from our 2006
Credit Agreement.

For a discussion of these and other events which could cause actual results to differ from our expectations and a
discussion of risk factors that could impact cash flow, please refer to the section entitled Risk Factors contained in Item 1A in this document and in the Companys annual report on Form 10-K for the year ended
December 31, 2005.



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Contractual Obligations

As of September 30, 2006, we had $154,500 of outstanding debt related to the convertible notes. In addition, in the third quarter of 2006 the Company entered into a capital lease of construction equipment
with a value of $10,187. The Company will be required to pay a facility fee of 5% of aggregate commitments under the 2006 Credit Facility

Other contractual obligations and commercial commitments, as detailed in the Companys annual report on Form 10-K for the year ended December 31, 2005, did not materially change outside of payments made in the normal course of
business.

NEW ACCOUNTING PRONOUNCEMENTS

See Note 4 of the Notes to the Condensed Consolidated Financial Statements included in this report for a summary of recently issued accounting standards.



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FORWARD-LOOKING STATEMENTS

This Form 10-Q includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as
amended. All statements, other than statements of historical facts, included in this Form 10-Q that address activities, events or developments which we expect or anticipate will or may occur in the future, including such things as future capital
expenditures (including the amount and nature thereof), oil, gas, gas liquids and power prices, demand for our services, the amount and nature of future investments by governments, expansion and other development trends of the oil, gas and power
industries, business strategy, expansion and growth of our business and operations, the outcome of government investigations and legal proceedings and other such matters are forward-looking statements. These forward-looking statements are based on
assumptions and analyses we made in light of our experience and our perception of historical trends, current conditions and expected future developments, as well as other factors we believe are appropriate under the circumstances. However, whether
actual results and developments will conform to our expectations and predictions is subject to a number of risks and uncertainties. As a result, actual results could differ materially from our expectations. Factors that could cause actual results to
differ from those contemplated by our forward-looking statements include, but are not limited to, the following:



| |  |  | difficulties we may encounter in discontinuing our business in Nigeria and/or arising in connection with the negotiation of change orders and other contractual modifications with
our customers and in connection with the sale and disposition of our operations and assets there generally, including, without limitation, collecting receivables, exporting select items of equipment and materials, and restructuring and/or severing
long-term relationships there with partners, labor organizations, and/or other entities and individuals formerly associated with our business there over the years;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | expenses involved in discontinuing our operations in Nigeria and Venezuela may exceed our estimates;
| | - |  | ----------------------------------------------------------------------------------------------------

| |  |  | the results of government investigations into the actions of the Company and of current and former employees of the Company, including J. Kenneth Tillery, the former President of
Willbros International, Inc.;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | the consequences of the Company entering into a criminal plea agreement or a deferred prosecution agreement, including the imposition of civil or criminal fines, penalties,
monitoring arrangements, or other sanctions that might be imposed as a result of government investigations;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | adverse results that we could suffer in civil litigation involving or arising from the actions of former employees and officers of the Company;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | inability to obtain adequate financing;
| | - |  | ---------------------------------------

| |  |  | the assertion by parties to contracts with us that the actions of former employees of the Company were improper, which constitutes a breach of, or otherwise give rise to claims
under, contracts to which we are a party;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | determination that the actions of former employees of the Company caused us to breach our credit agreements or debt instruments, which could result in the lack of access to our
credit facilities and the requirement to cash collateralize our existing letters of credit;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | the commencement by foreign governmental authorities of investigations into the actions of current and former employees of the Company, and the determination that such actions
constituted violations of foreign law;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | the dishonesty of employees and/or other representatives or their refusal to abide by applicable laws and the Companys established policies and rules;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | curtailment of capital expenditures in the oil, gas and power industries;
| | - |  | -------------------------------------------------------------------------

| |  |  | political or social circumstances impeding the progress of our work and increasing the cost of performance;
| | - |  | -----------------------------------------------------------------------------------------------------------

| |  |  | failure to obtain the timely award of one or more projects;
| | - |  | -----------------------------------------------------------

| |  |  | cancellation of projects, in whole or in part;
| | - |  | ----------------------------------------------

| |  |  | inclement weather;
| | - |  | ------------------

| |  |  | project cost overruns, unforeseen schedule delays, and the application of liquidated damages;
| | - |  | ---------------------------------------------------------------------------------------------

| |  |  | failing to realize cost recoveries from projects completed or in progress within a reasonable period after completion of the relevant project;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | inability to identify and acquire suitable acquisition targets on reasonable terms;
| | - |  | -----------------------------------------------------------------------------------

| |  |  | loss of the services of key management personnel;
| | - |  | -------------------------------------------------



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##### Table of Contents

| |  |  | the demand for energy moderating or diminishing;
| | - |  | ------------------------------------------------

| |  |  | downturns in general economic, market or business conditions in our target markets;
| | - |  | -----------------------------------------------------------------------------------

| |  |  | changes in the effective tax rate in countries where our work will be performed;
| | - |  | --------------------------------------------------------------------------------

| |  |  | changes in applicable laws or regulations, or changed interpretations thereof;
| | - |  | ------------------------------------------------------------------------------

| |  |  | changes in the scope of our expected insurance coverage;
| | - |  | --------------------------------------------------------

| |  |  | inability to manage insurable risk at an affordable cost;
| | - |  | ---------------------------------------------------------

| |  |  | the occurrence of the risk factors listed under Item 1A of this document, and in the Companys Annual Report on Form 10-K and in our other filings with the Securities
and Exchange Commission from time to time; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | other factors, most of which are beyond our control.
| | - |  | ----------------------------------------------------

Consequently, all of the forward-looking statements made in this Form 10-Q are qualified by these cautionary statements and there can be no assurance that the actual results or developments we anticipate will be realized or, even if
substantially realized, that they will have the consequences for, or effects on, our business or operations that we anticipate today. We assume no obligation to update publicly any such forward-looking statements, whether as a result of new
information, future events or otherwise. For a more complete description of the circumstances surrounding the actions of the current and former employees of the Company, see the Risk Factors included in the Companys Annual Report on Form 10-K
for the year ended December 31, 2005, beginning on page 27.

Unless the context otherwise requires, all references in this Form
10-Q to Willbros, the Company, we, us and our refer to Willbros Group, Inc., its consolidated subsidiaries and their predecessors.



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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our primary market risk is our
exposure to changes in non-U.S. currency exchange rates. We attempt to negotiate contracts which provide for payment in U.S. dollars, but we may be required to take all or a portion of payment under a contract in another currency. To mitigate
non-U.S. currency exchange risk, we seek to match anticipated non-U.S. currency revenue with expenses in the same currency whenever possible. To the extent we are unable to match non-U.S. currency revenue with expenses in the same currency, we may
use forward contracts, options or other common hedging techniques in the same non-U.S. currencies. We had no forward contracts or options at September 30, 2006 and 2005 or during the three-month periods then ended.

The carrying amounts for cash and cash equivalents, accounts receivable, notes payable and accounts payable and accrued liabilities shown in the
consolidated balance sheets approximate fair value at September 30, 2006 due to the generally short maturities of these items. At September 30, 2006, our investments were primarily in short-term dollar denominated bank deposits with
maturities of a few days, or in longer-term deposits where funds can be withdrawn on demand without penalty. We have the ability and expect to hold our investments to maturity.

Our exposure to market risk for changes in interest rates relates primarily to our long-term debt. At September 30, 2006, none of our indebtedness
was subject to variable interest rates.



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##### Table of Contents

ITEM 4. CONTROLS AND PROCEDURES

Our management, with the participation of our Chief Executive Officer
and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934) as of September 30, 2006. Based on this evaluation, our management,
including our Chief Executive Officer and Chief Financial Officer, concluded that, as of September 30, 2006, the disclosure controls and procedures are not effective in alerting them on a timely basis to material information required to be included
in our periodic filings with the Securities and Exchange Commission.

Company management with oversight from the Audit Committee has
devoted substantial effort to the remediation of the material weakness related to the Companys financial statement close process. This material weakness resulted in delays in our ability to timely close our books and records during 2005. Such
delays in closing the books and records are at least in part a contributing factor to the delays we have experienced in filing our quarterly and annual financial statements with the SEC. This material weakness resulted primarily from insufficient
staffing of qualified accounting personnel. Additionally, management identified a material weakness related to controls over the project reporting used in the accounting process. This weakness primarily impacts Nigeria contracts. Cost estimates were
not routinely updated to reflect current information and insufficient measures were taken to independently verify uniform and reliable cost estimates. Generally, our material weaknesses related to insufficient performance of existing controls rather
than incorrect design of controls.

During the quarter ended September 30, 2006, the Company implemented the following material
changes in its internal control over financial reporting that have materially improved, or are reasonably likely to materially improve, our internal control over financial reporting:



| |  |  | Continued to develop documentation and consistent execution of controls over our financial statement close process;
| | - |  | -------------------------------------------------------------------------------------------------------------------

| |  |  | Expanded operations and accounting supervisory controls over consistency of the project reporting process and documentation for Nigeria contracts through the addition of supervisory
personnel;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | Recruited candidates in order to expeditiously fill vacancies in our accounting, finance, and project management functions;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------

| |  |  | Due to the operating environment in Nigeria, a process was initiated to transfer a number of the significant accounting controls from Port Harcourt to Lagos, Nigeria and Houston.
This is expected to be completed during the quarter ended December 31, 2006; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| |  |  | Continued our review and monitoring of the accounting department structure and organization, both in terms of size and expertise.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------

We believe the implemented and planned improvements to our internal control over financial reporting and our disclosure controls and procedures will be
adequate to provide reasonable assurance that the information required to be disclosed in our Exchange Act reports is properly recorded, processed, summarized and reported within the time periods specified in the SECs rules and forms, and that
such information is accumulated and communicated to management, as appropriate, to allow timely decisions regarding required disclosures. Specifically, we believe the continued development of documentation and consistent execution of control
procedures related to closing our books and preparing financial statements, such as reconciliations and analyses, will ensure the timeliness and accuracy of our books and records. The controls implemented to develop consistency of the project
reporting will allow us to continue to improve our review of monthly project results and estimates prior to closing the books and preparing the financial statements. The transfer of a number of significant accounting controls from Nigeria to Houston
will provide for more effective supervision of Nigeria processes and controls. Finally, the reorganization of our accounting department structure will continue to provide for additional supervision of Nigerian project accounting personnel.



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##### Table of Contents

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

For information regarding legal proceedings, see Item 3. Legal
Proceedings of our Annual Report on Form 10-K for the year ended December 31, 2005, and Notes 2 and 10 of our Notes to Condensed Consolidated Financial Statements in Item 1 of Part I of this Form 10-Q, which information
from Note 10 as to legal proceedings is incorporated by reference herein.

Item 1A. Risk Factors

Except as set forth below, there have been no material changes in risk factors
involving the Company from those previously disclosed in the Companys Annual Report on Form 10-K for the year ended December 31, 2005 and quarterly reports on Form 10-Q for the quarters ended March 31, 2006 and June 30, 2006.

The spread and escalation of hostilities in Nigeria has and will continue to adversely affect us.

In Nigeria, we continue to see the spread and escalation of hostilities against oil and gas installations and the work forces charged with construction,
maintenance and operation of those installations. The attacks by militants have directly and indirectly affected us on a continuous basis since the hostage taking incident of February 18, 2006. However, since mid-June, the situation in Nigeria
has worsened, with attacks increasing throughout the country. Additional production operations in the Delta area have been and remain, shut in. These disruptions have had the combined effect of supporting higher oil prices and either frustrating
projects or creating a force majeure event for the ongoing projects in Nigeria. In the current work environment, with the Nigerian government and local operating companies unable to provide the security necessary for us to conduct project
operations, our project activities are frustrated and we cannot expose our personnel on an ongoing basis to the very real and escalating threat posed by these militant and hostile community disturbances. Further, there exists the ongoing possibility
that labor unrest could escalate into violence at the Choba facility due to a continuing labor dispute over a new May 2006 labor agreement.

In late September 2006, violence in the Port Harcourt area escalated to the point where we elected to transfer employees out of this area to ensure their continued safety. We have subsequently reduced our Choba facility staff to a minimum
number required to support a caretaker status. Critical ongoing support functions have been shifted to either our Lagos office or other locations.

Although we are aggressively pursuing all contractual remedies that may be available to us and are taking steps to minimize the drain on our financial resources that these disruptions are having on our financial results, we may be unable to
negotiate satisfactory settlements with our customers. If conditions in Nigeria remain the same or continue to deteriorate and we are unable to resolve various contractual claims with our clients, our cash flow and financial results may continue to
be adversely affected.



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##### Table of Contents

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table provides information
about purchases of our common stock by us during the quarter ended September 30, 2006:



|                                       |  |                                       |  |                                  |  |                                                                              |  |                                                                                                      
|-------------------------------------- |  | ------------------------------------- |  | -------------------------------- |  | ---------------------------------------------------------------------------- |  | -----------------------------------------------------------------------------------------------------
|                                       |  | (a) TotalNumberOf SharesPurchased (1) |  | (b)AveragePricePaid PerShare (2) |  | (c) TotalNumberOf SharesPurchasedAs Part OfPubliclyAnnouncedPlans orPrograms |  | (d)MaximumNumber (orApproximateDollar Value)Of SharesThat MayYet BePurchasedUnder
thePlans orPrograms
|July 1, 2006  July 31, 2006           |  |                                      |  |                                 |  |                                                                             |  |                                                                                                     
|August 1, 2006  August 31, 2006       |  | 6,942                                 |  | 16.00                            |  |                                                                             |  |                                                                                                     
|September 1, 2006  September 30, 2006 |  | 16,616                                |  | 15.54                            |  |                                                                             |  |                                                                                                     
|                                       |  |                                       |  |                                  |  |                                                                              |  |                                                                                                      
|Total                                  |  | 23,558                                |  | 15.68                            |  |                                                                             |  |                                                                                                     
|                                       |  |                                       |  |                                  |  |                                                                              |  |                                                                                                      

---

|1) | Represents (a) 7,933 shares of common stock acquired from certain of our officers and key employees under the share withholding provisions of our 1996 Stock Plan for the
payment of taxes associated with the vesting of shares of restricted stock granted under such plan and (b); 15,625 shares of common stock surrendered by a former officer to the Company in satisfaction of outstanding loans from the Company.
|-- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|2) | The price paid per common share represents the closing sales price of a share of our common stock, as reported in the New York Stock Exchange composite transactions, on the day that
the stock was acquired by us or, in the case of the 15,625 shares, the recorded value of the note receivable that was cancelled.
|-- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Item 3. Defaults upon Senior Securities

Not applicable

Item 4. Submission of Matters to a Vote of Security Holders

The Annual Meeting of Stockholders of the
Company (the Annual Meeting) was held on August 2, 2006, in Panama City, Panama. At the Annual Meeting, the stockholders of the Company (a) elected Robert R. Harl, Peter A. Leidel and James B. Taylor, Jr. as Class I directors
of the Company for three-year terms, (b) adopted an amendment to the Companys Restated Articles of Incorporation to increase the number of authorized shares of common stock from 35,000,000 to 70,000,000, (c) approved Amendment Number
5 to the Willbros Group, Inc. 1996 Stock Plan, (d) approved the Willbros Group, Inc. 2006 Director Restricted Stock Plan, and (e) ratified the appointment of GLO CPAs, LLP as the independent registered public accounting firm of the Company
for 2006.

There were present at the Annual Meeting, in person or by proxy, stockholders holding 18,562,379 shares of the common stock of
the Company, or 85.18% of the total stock outstanding and entitled to vote at the Annual Meeting. The table below describes the results of voting at the Annual Meeting.



|                                                                           |  |            |  |                         |  |             |  |                
|-------------------------------------------------------------------------- |  | ---------- |  | ----------------------- |  | ----------- |  | ---------------
|                                                                           |  | Votes For  |  | VotesAgainst OrWithheld |  | Abstentions |  | BrokerNon-Votes
|1. Election of Directors:                                                  |  |            |  |                         |  |             |  |                
|Robert R. Harl                                                             |  | 18,469,941 |  | 92,438                  |  |            |  |               
|Peter A. Leidel                                                            |  | 18,466,969 |  | 95,410                  |  |            |  |               
|James B. Taylor, Jr.                                                       |  | 18,466,401 |  | 95,978                  |  |            |  |               
|                                                                           |  |            |  |                        
|2. Approval to Amend Restated Articles of Incorporation:                   |  | 16,257,528 |  | 2,030,327               |  | 274,524     |  |               
|                                                                           |  |            |  |                        
|3. Adoption of Amendment Number 5 to Willbros Group, Inc. 1996 Stock Plan: |  | 12,029,834 |  | 1,335,561               |  | 67,525      |  | 5,129,459      
|                                                                           |  |            |  |                        
|4. Adoption of Willbros Group, Inc. 2006 Director Restricted Stock Plan:   |  | 12,744,770 |  | 632,645                 |  | 55,505      |  | 5,129,459      
|                                                                           |  |            |  |                        
|5. Ratification of Independent Registered Public Accounting Firm:          |  | 18,511,313 |  | 43,084                  |  | 7,981       |  |               



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##### Table of Contents

Item 5. Other Information

Not applicable

Item 6. Exhibits

Exhibits:

The following documents are included as exhibits to this Form 10-Q. Those exhibits below incorporated by reference herein are indicated as such by the information supplied in the parenthetical thereafter. If no
parenthetical appears after an exhibit, such exhibit is filed herewith.



|     |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     | 
|3.1  |  | Certificate of Amendment to the Restated Articles of Incorporation of the Company (Filed as Exhibit B to the Companys Proxy Statement for Annual Meeting of Stockholders dated
July 5, 2006).                                                                                                                                                                                                                                                            
|     | 
|3.2  |  | Amended and Restated Articles of Incorporation of the Company.                                                                                                                                                                                                                                                                                                                                                                                            
|     | 
|4.1  |  | Securities Purchase Agreement dated October 26, 2006, by and among the Company and the buyers listed on the signature pages thereto (the Buyers) (Filed as Exhibit 10.1 to the
Companys current report on Form 8-K dated October 26, 2006, filed October 27, 2006).                                                                                                                                                                                    
|     | 
|4.2  |  | Form of Warrant dated October 27, 2006 issued to each of the Buyers (Filed as Exhibit 10.2 to the Companys current report on Form 8-K dated October 26, 2006, filed October 27,
2006).                                                                                                                                                                                                                                                                   
|     | 
|4.3  |  | Registration Rights Agreement dated October 27, 2006, by and among the Company and each of the Buyers (Filed as Exhibit 10.3 to the Companys current report on Form 8-K dated October 26,
2006, filed October 27, 2006).                                                                                                                                                                                                                                 
|     | 
|10.1 |  | Credit Agreement dated as of October 27, 2006, among Willbros USA, Inc., as borrower, the Company and certain other subsidiaries and affiliates as guarantors, the lenders from time to time
party thereto and Calyon New York Branch, as Administrative Agent, Collateral Agent, Issuing Bank, Deposit Bank and Revolving Loan Lender (Filed as Exhibit 10.1 to the Companys current report on Form 8-K dated October 27, 2006, filed
October 27, 2006).



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##### Table of Contents

|     |  |                                                                                                                                                                                                                                                                                                                                                                                                                                 
|---- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     | 
|10.2 |  | Amendment Number 5 to Willbros Group, Inc. 1996 Stock Plan dated June 14, 2006 (Filed as Exhibit C to the Companys Proxy Statement for Annual Meeting of Stockholders dated
July 5, 2006).                                                                                                                                                                                                                                     
|     | 
|10.3 |  | Willbros Group, Inc. 2006 Director Restricted Stock Plan (Filed as Exhibit D to the Companys Proxy Statement for Annual Meeting of Stockholders dated July 5,
2006).                                                                                                                                                                                                                                                          
|     | 
|10.4 |  | Employment Agreement dated August 28, 2006, between Willbros USA, Inc. and Van A. Welch.                                                                                                                                                                                                                                                                                                                                        
|     | 
|10.5 |  | Separation Agreement and Release dated August 29, 2006, between Willbros USA, Inc. and Warren L. Williams.                                                                                                                                                                                                                                                                                                                      
|     | 
|10.6 |  | Consulting Services Agreement dated August 10, 2006, between Willbros USA, Inc. and Warren L. Williams.                                                                                                                                                                                                                                                                                                                         
|     | 
|10.7 |  | Sixth Amendment and Temporary Waiver Agreement dated August 18, 2006 to the Amended and Restated Credit Agreement dated March 12, 2004, among the Company, certain designated subsidiaries,
certain financial institutions, Calyon New York Branch, as Administrative Agent and CIBC, Inc., as Syndication Agent (Filed as Exhibit 10 to the Companys current report on Form 8-K dated August 18, 2006, filed August 23,
2006).
|     | 
|31.1 |  | Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002.                                                                                                                                                                                                                                               
|     | 
|31.2 |  | Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002.                                                                                                                                                                                                                                               
|     | 
|32.1 |  | Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                              
|     | 
|32.2 |  | Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                              



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SIGNATURE

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.



|                       |  |                      |  |                                               
|---------------------- |  | -------------------- |  | ----------------------------------------------
|                       |  | WILLBROS GROUP, INC.
|                       |  |                     
|Date: November 8, 2006 |  | By:                  |  | /s/ Van A. Welch                              
|                       |  |                      |  | Van A. Welch                                  
|                       |  |                      |  | Senior Vice President, Chief Financial Officer
|                       |  |                      |  | and Treasurer                                 
|                       |  |                      |  | (Principal Financial Officer and              
|                       |  |                      |  | Principal Accounting Officer)                 



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##### Table of Contents

EXHIBIT INDEX

The following documents are included as exhibits to this Form 10-Q. Those exhibits below
incorporated by reference herein are indicated as such by the information supplied in the parenthetical thereafter. If no parenthetical appears after an exhibit, such exhibit is filed herewith.



|              |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                               
|              | 
|3.1           |  | Certificate of Amendment to the Restated Articles of Incorporation of the Company (Filed as Exhibit B to the Companys Proxy Statement for Annual Meeting of Stockholders dated July 5,
2006).                                                                                                                                                                                                                                                            
|              | 
|3.2           |  | Amended and Restated Articles of Incorporation of the Company.                                                                                                                                                                                                                                                                                                                                                                                            
|              | 
|4.1           |  | Securities Purchase Agreement dated October 26, 2006, by and among the Company and the buyers listed on the signature pages thereto (the Buyers) (Filed as Exhibit 10.1 to the
Companys current report on Form 8-K dated October 26, 2006, filed October 27, 2006).                                                                                                                                                                                    
|              | 
|4.2           |  | Form of Warrant dated October 27, 2006 issued to each of the Buyers (Filed as Exhibit 10.2 to the Companys current report on Form 8-K dated October 26, 2006, filed October 27,
2006).                                                                                                                                                                                                                                                                   
|              | 
|4.3           |  | Registration Rights Agreement dated October 27, 2006, by and among the Company and the Buyers (Filed as Exhibit 10.3 to the Companys current report on Form 8-K dated October 26, 2006,
filed October 27, 2006).                                                                                                                                                                                                                                         
|              | 
|10.1          |  | Credit Agreement dated as of October 27, 2006, among Willbros USA, Inc., as borrower, the Company and certain other subsidiaries and affiliates as guarantors, the lenders from time to time
party thereto and Calyon New York Branch, as Administrative Agent, Collateral Agent, Issuing Bank, Deposit Bank and Revolving Loan Lender (Filed as Exhibit 10.1 to the Companys current report on Form 8-K dated October 27, 2006, filed
October 27, 2006).
|              | 
|10.2          |  | Amendment Number 5 to Willbros Group, Inc. 1996 Stock Plan dated June 14, 2006 (Filed as Exhibit C to the Companys Proxy Statement for Annual Meeting of Stockholders dated July 5,
2006).                                                                                                                                                                                                                                                               
|              | 
|10.3          |  | Willbros Group, Inc. 2006 Director Restricted Stock Plan (Filed as Exhibit D to the Companys Proxy Statement for Annual Meeting of Stockholders dated July 5,
2006).                                                                                                                                                                                                                                                                                    
|              | 
|10.4          |  | Employment Agreement dated August 28, 2006, between Willbros USA, Inc. and Van A. Welch.                                                                                                                                                                                                                                                                                                                                                                  
|              | 
|10.5          |  | Separation Agreement and Release dated August 29, 2006, between Willbros USA, Inc. and Warren L. Williams.                                                                                                                                                                                                                                                                                                                                                
|              | 
|10.6          |  | Consulting Services Agreement dated August 10, 2006, between Willbros USA, Inc. and Warren L. Williams.                                                                                                                                                                                                                                                                                                                                                   
|              | 
|10.7          |  | Sixth Amendment and Temporary Waiver Agreement dated August 18, 2006 to the Amended and Restated Credit Agreement dated March 12, 2004, among the Company, certain designated subsidiaries,
certain financial institutions, Calyon New York Branch, as Administrative Agent and CIBC, Inc., as Syndication Agent (Filed as Exhibit 10 to the Companys current report on Form 8-K dated August 18, 2006, filed August 23,
2006).                          
|              | 
|10.1          |  | Amendment No. 1 to Employment Agreement dated June 1, 2006, between Willbros USA, Inc. and Robert R. Harl (filed as Exhibit 10.1 to our current report on Form 8-K dated June 16, 2006, filed
June 22, 2006).                                                                                                                                                                                                                                             



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|     |  |                                                                                                                                                                                  
|---- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|     | 
|31.1 |  | Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002.
|     | 
|31.2 |  | Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of
2002.
|     | 
|32.1 |  | Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                               
|     | 
|32.2 |  | Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                               



57