| TEXAS                                                               | 75-0404410                                |
|---------------------------------------------------------------------|-------------------------------------------|
| (State      or other jurisdiction of incorporation or organization) | (I.R.S.      Employer Identification No.) |
|                                                                |                                      |
| 601      SOUTH RAGUET, LUFKIN, TEXAS                                | 75904                                     |
| (Address      of principal executive offices)                       | (Zip      Code)                           |

| ·   | the      level of North American and worldwide oil and gas exploration and      production activity; |
|--------------------|------------------------------------------------------------------------------------------------------|

| ·   | worldwide      economic conditions, particularly economic conditions in North      America; |
|--------------------|---------------------------------------------------------------------------------------------|

| ·   | oil      and gas production costs; |
|--------------------|------------------------------------|

| ·   | weather      conditions; |
|--------------------|--------------------------|

| ·   | the      expected costs of developing newreserves; |
|--------------------|----------------------------------------------------|

| ·   | national      government political requirements and the policies of  OPEC; |
|--------------------|----------------------------------------------------------------------------|

| ·   | the      price and availability of alternativefuels; |
|--------------------|------------------------------------------------------|

| ·   | the      effect of worldwide energy conservation  measures; |
|--------------------|-------------------------------------------------------------|

| ·   | environmental      regulation; and |
|--------------------|------------------------------------|

| ·   | tax      policies. |
|--------------------|--------------------|

| ·   | disruption      of oil and natural gas exploration and production    activities; |
|--------------------|----------------------------------------------------------------------------------|

| ·   | restriction      of the movement and exchange offunds; |
|--------------------|--------------------------------------------------------|

| ·   | inhibition      of our ability to collectreceivables; |
|--------------------|-------------------------------------------------------|

| ·   | enactment      of additional or stricter U.S. government or international sanctions;      and |
|--------------------|-----------------------------------------------------------------------------------------------|

| ·   | limitation      of our access to markets for periods oftime. |
|--------------------|--------------------------------------------------------------|

pension fundinvestment performance or assumptions relating to 
pension costs mayhave a material effect on the valuation of 
pensionobligations, the funded status of 
pension plans,and our 
pensioncost.

assets that, over the long-run, will approximate the presentvalue of projected benefit obligations. Our 
pension costis materially affected by the discount rate used to measure pension obligations,the level of plan assets available to fund those obligations at the measurementdate and the expected long-term rate of return on plan assets. Our pensionplan is supported by pension fund investments that are volatile and subjectto financial market risk, including fixed income, domestic and foreign equitysecurities, real estate and hedge funds. Significant changes in investmentperformance or a change in the portfolio mix of invested assets couldresult in corresponding increases and decreases in the valuation of plan assetsor in a change of the expected rate of return on plan assets. A change in thediscount rate would result in a significant increase or decrease in thevaluation of pension obligations, affecting the reported funded status of ourpension plans as well as the net periodic pension cost in the following fiscalyears. Similarly, changes in the expected return on plan assets couldresult in significant changes in the net periodic pension cost for subsequentfiscal years.

| ·   | trends      in the Company’s industries and the markets in which it      operates; |
|--------------------|------------------------------------------------------------------------------------------|

| ·   | changes      in the market price of the products the Company  sells; |
|--------------------|----------------------------------------------------------------------|

| ·   | the      introduction of new technologies or products by the Company or its      competitors; |
|--------------------|-----------------------------------------------------------------------------------------------|

| ·   | changes      in expectations as to the Company’s future financial performance,      including financial estimates by securities analysts and      investors; |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | operating      results that vary from the expectations of securities analysts and      investors; |
|--------------------|---------------------------------------------------------------------------------------------------|

| ·   | announcements      by the Company or its competitors of significant contracts, acquisitions,      strategic partnerships, joint ventures, financings or capital      commitments; |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | changes      in laws and regulations; and |
|--------------------|-------------------------------------------|

| ·   | general      economic and competitiveconditions. |
|--------------------|--------------------------------------------------|

| Oilfield:                       |                            |   |
|---------------------------------|---------------------------------|--------|
| Pumping      Unit Manufacturing | 240,000      sq. ft.            |   |
| Foundry      Operations         | 687,000      sq. ft.            |   |
|                            |                            |   |
| Power      Transmission:        |                            |   |
| New      Unit Manufacturing     | 458,000      sq. ft.            |   |
| Repair      Operations          | 84,000      sq. ft.             |   |
|                            |                            |   |
| Trailer      Manufacturing      | 388,000      sq. ft.            |   |
|                            |                            |   |
| Corporate      Facilities       |   33,000      sq. ft. |   |

| Oilfield      (Pumping unit manufacturing and repair):       |                 |   |
|--------------------------------------------------------------|----------------------|--------|
| Nisku,      Alberta, Canada                                  | 66,000      sq. ft.  |   |
| Comodoro      Rivadia, Argentina                             | 125,000      sq. ft. |   |
|                                                         |                 |   |
| Power      Transmission (New unit manufacturing and repair): |                 |   |
| Fougerolles,      France                                     | 377,000      sq. ft. |   |

|    |   | 2007             |   |   | 2006   |   |
|---------|--------|------------------|--------|--------|--------|--------|
|    |   | Stock      Price |   |   |   |   |   | Stock      Price |   |   |   |   |
| Quarter |   | High             |   |   | Low    |   |   | Dividend |   |   | High |   |   | Low |   |   | Dividend |   |
|    |   |             |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| First   |   | $                | 63.07  |   |   | $      | 50.23 |   |   | $ | 0.21 |   |   | $ | 68.67 |   |   | $ | 45.56 |   |   | $ | 0.11 |   |
| Second  |   |             | 67.43  |   |   |   | 55.81 |   |   |   | 0.21 |   |   |   | 71.47 |   |   |   | 50.21 |   |   |   | 0.15 |   |
| Third   |   |             | 73.25  |   |   |   | 50.73 |   |   |   | 0.23 |   |   |   | 65.21 |   |   |   | 49.05 |   |   |   | 0.18 |   |
| Fourth  |   |             | 62.90  |   |   |   | 50.84 |   |   |   | 0.23 |   |   |   | 61.46 |   |   |   | 50.66 |   |   |   | 0.18 |   |

| Plan      Category                                              |   | Number      of securities to be issued upon exercise of outstanding options, warrants      and rights (a) |    |   | Weighted-average      exercise price of outstanding options, warrants and rights    (b) |   |   | Number      of securities remaining available for future issuance under equity      compensation plans (excluding securities reflected in column      (a)) |   |
|-----------------------------------------------------------------|--------|-----------------------------------------------------------------------------------------------------------|---------|--------|-----------------------------------------------------------------------------------------|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
|                                                            |   |                                                                                                      |    |   |                                                                                    |   |   |                                                                                                                                                       |   |
| Equity      compensation plans approved by security holders     |   |                                                                                                      | 659,143 |   |                                                                                    | $      | 30.87  |                                                                                                                                                       |   |   | 1,158,868 |   |
|                                                            |   |                                                                                                      |    |   |                                                                                    |   |   |                                                                                                                                                       |   |   |   |   |
| Equity      compensation plans not approved by security holders |   |                                                                                                      | -       |   |                                                                                    |   | -      |                                                                                                                                                       |   |   | - |   |
|                                                            |   |                                                                                                      |    |   |                                                                                    |   |   |                                                                                                                                                       |   |   |   |   |
| Total                                                           |   |                                                                                                      | 659,143 |   |                                                                                    | $      | 30.87  |                                                                                                                                                       |   |   | 1,158,868 |   |
|                                                            |   |                                                                                                      |    |   |                                                                                    |   |   |                                                                                                                                                       |   |   |   |   |

| Issuers      Purchases of Equity Securities |   |
|---------------------------------------------|--------|
|                                        |   |   |   |   |   |   |   |   |   |   |   |   |
|                                        |   |   |   |   |   |   |   | Total      Number of |   |   | Approximate      Dollar |   |
|                                        |   | Total      Number |   |   | Average |   |   | Shares      Purchased as |   |   | Value      of Shares That |   |
|                                        |   | of      Shares |   |   | Price      Paid |   |   | Part      of Publicly |   |   | May      Yet Be Purchased |   |
| Period                                      |   | Purchased |   |   | per      Share |   |   | Announced      Plans |   |   | Under      the Plans |   |
|                                        |   |   |   |   |   |   |   |   |   |   |   |   |
| October      1 - October 31                 |   |   | - |   |   | $ | - |   |   |   | - |   |   | $ | 10,084,369 |   |
| November      1- November 30                |   |   | - |   |   |   | - |   |   |   | - |   |   |   | 10,084,369 |   |
| December      1 - December 31               |   |   | 100,000 |   |   |   | 54.61 |   |   |   | 100,000 |   |   |   | 4,623,918 |   |
|                                        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total                                       |   |   | 100,000 |   |   | $ | 54.61 |   |   |   | 100,000 |   |   | $ | 4,623,918 |   |

| (In      millions, except per share data) |   | 2007   |   |   | 2006   |   |   | 2005   |   |   | 2004   |   |   | 2003   |   |
|-------------------------------------------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|
|                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Sales                                     |   | $      | 597.2  |   |   | $      | 605.5  |   |   | $      | 492.2  |   |   | $      | 356.3  |   |   | $ | 262.3 |   |
|                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Net      earnings                         |   |   | 74.2   |   |   |   | 73.0   |   |   |   | 44.5   |   |   |   | 14.4   |   |   |   | 9.7 |   |
|                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Net      earnings  per share:   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|    Basic                   |   |   | 4.98   |   |   |   | 4.92   |   |   |   | 3.10   |   |   |   | 1.06   |   |   |   | 0.74 |   |
|    Diluted                 |   |   | 4.92   |   |   |   | 4.83   |   |   |   | 3.03   |   |   |   | 1.04   |   |   |   | 0.73 |   |
|                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total      assets                         |   |   | 500.7  |   |   |   | 429.1  |   |   |   | 359.8  |   |   |   | 300.3  |   |   |   | 263.7 |   |
|                                      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Cash      dividends per share             |   |   | 0.88   |   |   |   | 0.62   |   |   |   | 0.38   |   |   |   | 0.36   |   |   |   | 0.36 |   |

|                        |   |   |    |   |   |   |    | Increase/  |   |   | %      Increase/ |   |
|-----------------------------|--------|--------|---------|--------|--------|--------|---------|------------|--------|--------|------------------|--------|
| Year      Ended December 31 |   | 2007   |    |   | 2006   |   |    | (Decrease) |   |   | (Decrease)       |   |
|                        |   |   |    |   |   |   |    |       |   |   |             |   |
| Sales                       |   |   |    |   |   |   |    |       |   |   |             |   |
| Oil      Field              |   | $      | 397,354 |   |   | $      | 401,200 |       |   | $      | (3,846           | )      |   |   | (1.0 | ) |
| Power      Transmission     |   |   | 158,452 |   |   |   | 124,922 |       |   |   | 33,530           |   |   |   | 26.8 |   |
| Trailer                     |   |   | 41,381  |   |   |   | 79,370  |       |   |   | (37,989          | )      |   |   | (47.9 | ) |
| Total                       |   | $      | 597,187 |   |   | $      | 605,492 |       |   | $      | (8,305           | )      |   |   | (1.4 | ) |
|                        |   |   |    |   |   |   |    |       |   |   |             |   |   |   |   |   |
| Gross      Profit           |   |   |    |   |   |   |    |       |   |   |             |   |   |   |   |   |
| Oil      Field              |   | $      | 109,091 |   |   | $      | 109,414 |       |   | $      | (323             | )      |   |   | (0.3 | ) |
| Power      Transmission     |   |   | 52,476  |   |   |   | 41,024  |       |   |   | 11,452           |   |   |   | 27.9 |   |
| Trailer                     |   |   | 4,801   |   |   |   | 5,811   |       |   |   | (1,010           | )      |   |   | (17.4 | ) |
| Total                       |   | $      | 166,368 |   |   | $      | 156,249 |       |   | $      | 10,119           |   |   |   | 6.5 |   |

|                        |   |   |    |   |   |   |    | Increase/  |   |   | %      Increase/ |   |
|-----------------------------|--------|--------|---------|--------|--------|--------|---------|------------|--------|--------|------------------|--------|
| Year      Ended December 31 |   | 2006   |    |   | 2005   |   |    | (Decrease) |   |   | (Decrease)       |   |
|                        |   |   |    |   |   |   |    |       |   |   |             |   |
| Sales                       |   |   |    |   |   |   |    |       |   |   |             |   |
| Oil      Field              |   | $      | 401,200 |   |   | $      | 307,075 |       |   | $      | 94,125           |   |   |   | 30.7 |   |
| Power      Transmission     |   |   | 124,922 |   |   |   | 106,616 |       |   |   | 18,306           |   |   |   | 17.2 |   |
| Trailer                     |   |   | 79,370  |   |   |   | 78,476  |       |   |   | 894              |   |   |   | 1.1 |   |
| Total                       |   | $      | 605,492 |   |   | $      | 492,167 |       |   | $      | 113,325          |   |   |   | 23.0 |   |
|                        |   |   |    |   |   |   |    |       |   |   |             |   |   |   |   |   |
| Gross      Profit           |   |   |    |   |   |   |    |       |   |   |             |   |   |   |   |   |
| Oil      Field              |   | $      | 109,414 |   |   | $      | 76,578  |       |   | $      | 32,836           |   |   |   | 42.9 |   |
| Power      Transmission     |   |   | 41,024  |   |   |   | 32,300  |       |   |   | 8,724            |   |   |   | 27.0 |   |
| Trailer                     |   |   | 5,811   |   |   |   | 4,463   |       |   |   | 1,348            |   |   |   | 30.2 |   |
| Total                       |   | $      | 156,249 |   |   | $      | 113,341 |       |   | $      | 42,908           |   |   |   | 37.9 |   |

| (In      thousands of dollars)                        |   |   |   |   | Payments      due by period |   |
|-------------------------------------------------------|--------|--------|--------|--------|-----------------------------|--------|
|                                                  |   |   |   |   | Less      than              |   |   |  1 -      3 |   |   |  3 -      5 |   |   | More      than |   |
| Contractual      obligations                          |   | Total  |   |   | 1      year                 |   |   | years |   |   | years |   |   | 5      years |   |
|                                                  |   |   |   |   |                        |   |   |   |   |   |   |   |   |   |   |   |   |
| Operating      lease obligations                      |   | $      | 3,020  |   |                        | $      | 1,118 |   |   | $ | 1,261 |   |   | $ | 440 |   |   | $ | 201 |   |
| Contractual      commitments for capital expenditures |   |   | 10,936 |   |                        |   | 10,414 |   |   |   | 522 |   |   |   | - |   |   |   | - |   |
|                                                  |   |   |   |   |                        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total                                                 |   | $      | 13,956 |   |                        | $      | 11,532 |   |   | $ | 1,783 |   |   | $ | 440 |   |   | $ | 201 |   |
|                                                  |   |   |   |   |                        |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |

|                                                         |   | Pension  |   |   | Other    |   |
|--------------------------------------------------------------|--------|----------|--------|--------|----------|--------|
| (Thousands      of dollars)                                  |   | Benefits |   |   | Benefits |   |
|                                                         |   |     |   |   |     |   |
| Discount      rate                                           |   |     |   |   |     |   |
|                                                         |   |     |   |   |     |   |
| Effect      of change on net periodic benefit cost (income): |   |     |   |   |     |   |
|                                                         |   |     |   |   |     |   |
| .25      percentage point increase                           |   | $        | (118   | )      |     | $      | (6 | ) |
| .25      percentage point decrease                           |   |     | 121    |   |     |   | 6 |   |
|                                                         |   |     |   |   |     |   |   |   |
| Effect      of change on PBO/APBO:                           |   |     |   |   |     |   |   |   |
|                                                         |   |     |   |   |     |   |   |   |
| .25      percentage point increase                           |   | $        | 5,044  |   |     | $      | 172 |   |
| .25      percentage point decrease                           |   |     | (4,810 | )      |     |   | (166 | ) |
|                                                         |   |     |   |   |     |   |   |   |
| Long-term      rate of return on plan assets                 |   |     |   |   |     |   |   |   |
|                                                         |   |     |   |   |     |   |   |   |
| Effect      of change on net periodic benefit cost (income): |   |     |   |   |     |   |   |   |
|                                                         |   |     |   |   |     |   |   |   |
| .25      percentage point increase                           |   | $        | (551   | )      |     | $      | - |   |
| .25      percentage point decrease                           |   |     | 551    |   |     |   | - |   |
|                                                         |   |     |   |   |     |   |   |   |

| ·   | oil      prices; |
|--------------------|------------------|

| ·   | declines      in domestic and worldwide oil and gasdrilling; |
|--------------------|--------------------------------------------------------------|

| ·   | capital      spending levels of oil producers; |
|--------------------|------------------------------------------------|

| ·   | the      cyclicality of the trailerindustry; |
|--------------------|----------------------------------------------|

| ·   | availability      and prices for raw materials; |
|--------------------|-------------------------------------------------|

| ·   | the      inherent dangers and complexities of our  operations; |
|--------------------|----------------------------------------------------------------|

| ·   | uninsured      judgments or a rise in insurancepremiums; |
|--------------------|----------------------------------------------------------|

| ·   | the      inability to effectively integrateacquisitions; |
|--------------------|----------------------------------------------------------|

| ·   | labor      disruptions and increasing laborcosts; |
|--------------------|---------------------------------------------------|

| ·   | the      availability of qualified and skilledlabor; |
|--------------------|------------------------------------------------------|

| ·   | disruption      of our operating facilities or management information    systems; |
|--------------------|-----------------------------------------------------------------------------------|

| ·   | the      impact on foreign operations of war, political disruption, civil      disturbance, economic and legal sanctions and changes in global trade      policies; |
|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | currency      exchange rate fluctuations in the markets in which the Company      operates; |
|--------------------|---------------------------------------------------------------------------------------------|

| ·   | changes      in the laws, regulations, policies or other activities of governments,      agencies and similar organizations where such actions may affect the      production, licensing, distribution or sale of the Company’s products, the      cost thereof or applicable taxrates; |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | costs      related to legal and administrative proceedings, including adverse      judgments against the Company if the Company fails to prevail in reversing      such judgments; and |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | general      industry, political and economic conditions in the markets where the      Company’s procures material, components and supplies for the production of      the Company’s principal products or where the Company’s products are      produced, distributed or sold. |
|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                             |   | 2007   |    |   | 2006   |   |
|----------------------------------------------------------------------------------|--------|--------|---------|--------|--------|--------|
| Assets                                                                           |   |   |    |   |   |   |
| Current      Assets:                                                             |   |   |    |   |   |   |
| Cash      and cash equivalents                                                   |   | $      | 95,748  |   |   | $      | 57,797 |   |
| Receivables,      net                                                            |   |   | 93,634  |   |   |   | 90,585 |   |
| Income      tax receivable                                                       |   |   | 4,637   |   |   |   | - |   |
| Inventories                                                                      |   |   | 95,821  |   |   |   | 85,630 |   |
| Deferred      income tax assets                                                  |   |   | 1,615   |   |   |   | 7,919 |   |
| Other      current assets                                                        |   |   | 1,412   |   |   |   | 1,521 |   |
| Total      current assets                                                        |   |   | 292,867 |   |   |   | 243,452 |   |
|                                                                             |   |   |    |   |   |   |   |   |
| Property,      plant and equipment, net                                          |   |   | 120,129 |   |   |   | 113,081 |   |
| Prepaid      pension costs                                                       |   |   | 71,571  |   |   |   | 56,856 |   |
| Goodwill,      net                                                               |   |   | 11,990  |   |   |   | 11,732 |   |
| Other      assets, net                                                           |   |   | 4,099   |   |   |   | 3,948 |   |
| Total      assets                                                                |   | $      | 500,656 |   |   | $      | 429,069 |   |
|                                                                             |   |   |    |   |   |   |   |   |
| Liabilities      and Shareholders' Equity                                        |   |   |    |   |   |   |   |   |
|                                                                             |   |   |    |   |   |   |   |   |
| Current      liabilities:                                                        |   |   |    |   |   |   |   |   |
| Accounts      payable                                                            |   | $      | 23,977  |   |   | $      | 24,375 |   |
| Accrued      liabilities:                                                        |   |   |    |   |   |   |   |   |
| Payroll      and benefits                                                        |   |   | 11,444  |   |   |   | 9,810 |   |
| Warranty      expenses                                                           |   |   | 3,641   |   |   |   | 3,668 |   |
| Taxes      payable                                                               |   |   | 7,131   |   |   |   | 7,665 |   |
| Other                                                                            |   |   | 21,941  |   |   |   | 15,977 |   |
| Total      current liabilities                                                   |   |   | 68,134  |   |   |   | 61,495 |   |
|                                                                             |   |   |    |   |   |   |   |   |
| Deferred      income tax liabilities                                             |   |   | 34,600  |   |   |   | 28,022 |   |
| Postretirement      benefits                                                     |   |   | 7,303   |   |   |   | 8,475 |   |
| Other      liabilities                                                           |   |   | 5,966   |   |   |   | 2,937 |   |
| Commitments      and contingencies                                               |   |   | -       |   |   |   | - |   |
|                                                                             |   |   |    |   |   |   |   |   |
| Shareholders'      equity:                                                       |   |   |    |   |   |   |   |   |
|                                                                             |   |   |    |   |   |   |   |   |
| Common      stock, $1.00 par value per share; 60,000,000 shares      authorized; |   |   |    |   |   |   |   |   |
| 15,534,184      and 15,322,903 shares issued and outstanding, respectively       |   |   | 15,534  |   |   |   | 15,323 |   |
| Capital      in excess par                                                       |   |   | 48,315  |   |   |   | 38,173 |   |
| Retained      earnings                                                           |   |   | 341,315 |   |   |   | 280,198 |   |
| Treasury      stock, 895,278 and 395,278 shares, respectively, at cost           |   |   | (31,580 | )      |   |   | (4,083 | ) |
| Accumulated      other comprehensive income (loss)                               |   |   | 11,069  |   |   |   | (1,471 | ) |
| Total      shareholders' equity                                                  |   |   | 384,653 |   |   |   | 328,140 |   |
| Total      liabilities and shareholders' equity                                  |   | $      | 500,656 |   |   | $      | 429,069 |   |
|                                                                             |   |   |    |   |   |   |   |   |

|                                              |   | 2007   |    |   | 2006   |   |    | 2005   |   |
|---------------------------------------------------|--------|--------|---------|--------|--------|--------|---------|--------|--------|
|                                              |   |   |    |   |   |   |    |   |   |
| Sales                                             |   | $      | 597,187 |   |   | $      | 605,492 |   |   | $ | 492,167 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Cost      of sales                                |   |   | 430,819 |   |   |   | 449,243 |   |   |   | 378,826 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Gross      profit                                 |   |   | 166,368 |   |   |   | 156,249 |   |   |   | 113,341 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Selling,      general and administrative expenses |   |   | 59,034  |   |   |   | 52,994  |   |   |   | 44,135 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Operating      income                             |   |   | 107,334 |   |   |   | 103,255 |   |   |   | 69,206 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Interest      income                              |   |   | 3,751   |   |   |   | 1,893   |   |   |   | 563 |   |
| Interest      expense                             |   |   | (285    | )      |   |   | (160    | )      |   |   | (159 | ) |
| Other      income (expense), net                  |   |   | 1,926   |   |   |   | (259    | )      |   |   | (335 | ) |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Earnings      before income tax provision         |   |   | 112,726 |   |   |   | 104,729 |   |   |   | 69,275 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Income      tax provision                         |   |   | 38,515  |   |   |   | 31,735  |   |   |   | 24,731 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Net      earnings                                 |   |   | 74,211  |   |   |   | 72,994  |   |   |   | 44,544 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |
| Net      earnings per share                       |   |   |    |   |   |   |    |   |   |   |   |   |
| Basic                                             |   | $      | 4.98    |   |   | $      | 4.92    |   |   | $ | 3.10 |   |
| Diluted                                           |   | $      | 4.92    |   |   | $      | 4.83    |   |   | $ | 3.03 |   |
|                                              |   |   |    |   |   |   |    |   |   |   |   |   |

|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    | Accumulated  |   |   |   |   |
|----------------------------------------------|--------|------------------------|------------|--------|-------------|--------|--------|-------------------|--------|--------|----------------|--------|--------|----------|---------|--------|--------------|--------|---------|--------------|--------|--------|--------|--------|
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    | Other        |   |   |   |   |
| Years      Ended December 31,                |   | Common                 |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    | Compre-      |   |   |   |   |
| 2007,      2006 and 2005                     |   | Stock                  |       |   |        |   |   | Capital           |   |   |           |   |   |     |    |   | Compre-      |   |    | hensive      |   |   |   |   |
| (Thousands      of dollars,                  |   | Shares,      net       |       |   | Common      |   |   | In      Excess    |   |   | Retained       |   |   | Treasury |    |   | hensive      |   |    | Income       |   |   |   |   |
| except      share data)                 |   |  of      Treasury |       |   |  Stock |   |   |  of      Par |   |   |  Earnings |   |   | Stock    |    |   | Income  |   |    |  (Loss) |   |   | Total  |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |
| Balance,      Jan. 1, 2005                   |   |                   | 13,980,680 |   |        |   | 14,472 |              |   |   | 19,488         |   |   |     | 177,374 |   |         |   | (5,075  | )            |   |   |   |   |   | 2,673 |   |   |   | 208,932 |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |
| Comprehensive      income:                   |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |
| Net      earnings                            |   |                   |       |   |        |   |   |              |   |   |           |   |   |     | 44,544  |   |         |   |    |         |   |   | 44,544 |   |   |   |   |   |   |   | 44,544 |   |
| Other      comprehensive income, net of tax: |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Foreign      currency translation            |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| adjustments                                  |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | (727   | )      |   |   |   |   |   |   | (727 | ) |
| Other      comprehensive income              |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | (727   | )      |   |   | (727 | ) |   |   |   |   |
| Comprehensive      income                    |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | 43,817 |   |   |   |   |   |   |   |   |   |
| Cash      dividends                          |   |                   |       |   |        |   |   |              |   |   |           |   |   |     | (5,491  | )      |         |   |    |         |   |   |   |   |   |   |   |   |   |   | (5,491 | ) |
| Exercise      of stock options               |   |                   | 744,686    |   |        |   | 653    |              |   |   | 12,217         |   |   |     |    |   |         |   | 951     |         |   |   |   |   |   |   |   |   |   |   | 13,821 |   |
| Balance,      Dec. 31, 2005                  |   |                   | 14,725,366 |   |        |   | 15,125 |              |   |   | 31,705         |   |   |     | 216,427 |   |         |   | (4,124  | )            |   |   |   |   |   |   | 1,946 |   |   |   | 261,079 |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Comprehensive      income:                   |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Net      earnings                            |   |                   |       |   |        |   |   |              |   |   |           |   |   |     | 72,994  |   |         |   |    |         |   |   | 72,994 |   |   |   |   |   |   |   | 72,994 |   |
| Other      comprehensive income, net of tax: |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Foreign      currency translation            |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| adjustments                                  |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | 1,012  |   |   |   | 1,012 |   |   |   | 1,012 |   |
| Total      comprehensive income              |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   | $      | 74,006 |   |   |   |   |   |   |   |   |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Initial      application of FAS 158:         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Defined      benefit pension plans           |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   | (5,758 | ) |   |   |   |   |
| Defined      benefit postretirement plans    |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   | 1,329 |   |   |   |   |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Total      initial application of FAS 158:   |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   | (4,429 | ) |   |   | (4,429 | ) |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Cash      dividends                          |   |                   |       |   |        |   |   |              |   |   |           |   |   |     | (9,223  | )      |         |   |    |         |   |   |   |   |   |   |   |   |   |   | (9,223 | ) |
| Stock-based      compensation                |   |                   |       |   |        |   |   |              |   |   | 2,908          |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   | 2,908 |   |
| Exercise      of stock options               |   |                   | 202,259    |   |        |   | 198    |              |   |   | 3,560          |   |   |     |    |   |         |   | 41      |         |   |   |   |   |   |   |   |   |   |   | 3,799 |   |
| Balance,      Dec. 31, 2006                  |   |                   | 14,927,625 |   |        | $      | 15,323 |              |   | $      | 38,173         |   |   | $        | 280,198 |   |         | $      | (4,083  | )            |   |   |   |   |   | $ | (1,471 | ) |   | $ | 328,140 |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Comprehensive      income:                   |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Net      earnings                            |   |                   |       |   |        |   |   |              |   |   |           |   |   |     | 74,211  |   |         |   |    |         |   |   | 74,211 |   |   |   |   |   |   |   | 74,211 |   |
| Other      comprehensive income, net of tax: |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Foreign      currency translation            |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| adjustments                                  |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | 5,057  |   |   |   | 5,057 |   |   |   | 5,057 |   |
| Defined      benefit pension plans           |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | 6,979  |   |   |   | 6,979 |   |   |   | 6,979 |   |
| Defined      benefit post-retirement plans   |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   | 504    |   |   |   | 504 |   |   |   | 504 |   |
| Total      comprehensive income              |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   | $      | 86,751 |   |   |   |   |   |   |   |   |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |
| Cash      dividends                          |   |                   |       |   |        |   |   |              |   |   |           |   |   |     | (13,094 | )      |         |   |    |         |   |   |   |   |   |   |   |   |   |   | (13,094 | ) |
| Treasury      stock purchases                |   |                   | (500,000   | )      |        |   |   |              |   |   |           |   |   |     |    |   |         |   | (27,497 | )            |   |   |   |   |   |   |   |   |   |   | (27,497 | ) |
| Stock-based      compensation                |   |                   |       |   |        |   |   |              |   |   | 3,682          |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   | 3,682 |   |
| Exercise      of stock options               |   |                   | 211,281    |   |        |   | 211    |              |   |   | 6,460          |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   | 6,671 |   |
| Balance,      Dec. 31, 2007                  |   |                   | 14,638,906 |   |        | $      | 15,534 |              |   | $      | 48,315         |   |   | $        | 341,315 |   |         | $      | (31,580 | )            |   |   |   |   |   | $ | 11,069 |   |   | $ | 384,653 |   |
|                                         |   |                   |       |   |        |   |   |              |   |   |           |   |   |     |    |   |         |   |    |         |   |   |   |   |   |   |   |   |   |   |   |   |

|                                                                                      |   | 2007   |    |   | 2006   |   |    | 2005   |   |
|-------------------------------------------------------------------------------------------|--------|--------|---------|--------|--------|--------|---------|--------|--------|
| Cash      flows form operating activities:                                                |   |   |    |   |   |   |    |   |   |
| Net      earnings                                                                         |   | $      | 74,211  |   |   | $      | 72,994  |   |   | $ | 44,544 |   |
| Adjustments      to reconcile net earnings to cash provided by operating      activities: |   |   |    |   |   |   |    |   |   |
| Depreciation      and amortization                                                        |   |   | 14,524  |   |   |   | 11,950  |   |   |   | 11,376 |   |
| Deferred      income tax provision/benefit                                                |   |   | 8,795   |   |   |   | (4,520  | )      |   |   | (2,041 | ) |
| Excess      tax benefit from share-based compensation                                     |   |   | (3,031  | )      |   |   | (3,525  | )      |   |   | - |   |
| Share-based      compensation expense                                                     |   |   | 3,682   |   |   |   | 2,908   |   |   |   | - |   |
| Pension      income                                                                       |   |   | (3,257  | )      |   |   | (2,901  | )      |   |   | (2,115 | ) |
| Postretirement      benefits/obligation                                                   |   |   | (400    | )      |   |   | (123    | )      |   |   | 747 |   |
| (Gain)      loss on disposition of property, plant and equipment                          |   |   | (450    | )      |   |   | (123    | )      |   |   | 92 |   |
| Changes      in:                                                                          |   |   |    |   |   |   |    |   |   |   |   |   |
| Receivables,      net                                                                     |   |   | (1,141  | )      |   |   | (9,440  | )      |   |   | (19,905 | ) |
| Income      tax receivable                                                                |   |   | (4,573  | )      |   |   | -       |   |   |   | - |   |
| Inventories                                                                               |   |   | (7,549  | )      |   |   | (10,490 | )      |   |   | (20,360 | ) |
| Other      current assets                                                                 |   |   | 179     |   |   |   | 3,553   |   |   |   | (3,533 | ) |
| Accounts      payable                                                                     |   |   | (2,425  | )      |   |   | 3,039   |   |   |   | (2,367 | ) |
| Accrued      liabilities                                                                  |   |   | 11,745  |   |   |   | 4,044   |   |   |   | 17,242 |   |
| Net      cash provided by operating activities                                            |   |   | 90,310  |   |   |   | 67,366  |   |   |   | 23,680 |   |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Cash      flows from investing activites:                                                 |   |   |    |   |   |   |    |   |   |   |   |   |
| Additions      to property, plant and equipment                                           |   |   | (19,253 | )      |   |   | (31,241 | )      |   |   | (15,803 | ) |
| Proceeds      from disposition of property, plant and equipment                           |   |   | 1,395   |   |   |   | 236     |   |   |   | 187 |   |
| Increase      in other assets                                                             |   |   | (231    | )      |   |   | (680    | )      |   |   | (833 | ) |
| Acquisition      of other companies                                                       |   |   | -       |   |   |   | -       |   |   |   | (3 | ) |
| Net      cash used in investing activities                                                |   |   | (18,089 | )      |   |   | (31,685 | )      |   |   | (16,452 | ) |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Cash      flows from financing activites:                                                 |   |   |    |   |   |   |    |   |   |   |   |   |
| Payments      of short-term notes payable                                                 |   |   | -       |   |   |   | (288    | )      |   |   | (1,530 | ) |
| Dividends      paid                                                                       |   |   | (13,094 | )      |   |   | (9,223  | )      |   |   | (5,491 | ) |
| Excess      tax benefit from share-based compensation                                     |   |   | 3,031   |   |   |   | 3,525   |   |   |   | - |   |
| Proceeds      from exercise of stock options                                              |   |   | 3,467   |   |   |   | 2,192   |   |   |   | 8,564 |   |
| Purchases      of treasury stock                                                          |   |   | (27,497 | )      |   |   | -       |   |   |   | - |   |
| Net      cash provided by (used in) financing activities                                  |   |   | (34,093 | )      |   |   | (3,794  | )      |   |   | 1,543 |   |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Effect      of translation on cash and cash equivalents                                   |   |   | (177    | )      |   |   | 88      |   |   |   | (46 | ) |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Net      increase in cash and cash equivalents                                            |   |   | 37,951  |   |   |   | 31,975  |   |   |   | 8,725 |   |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Cash      and cash equivalents at beginning of period                                     |   |   | 57,797  |   |   |   | 25,822  |   |   |   | 17,097 |   |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Cash      and cash equivalents at end of period                                           |   | $      | 95,748  |   |   | $      | 57,797  |   |   | $ | 25,822 |   |
|                                                                                      |   |   |    |   |   |   |    |   |   |   |   |   |

|                                 | Useful      Life            |
|--------------------------------------|-----------------------------|
|                                 | (in      years)             |
|                                 |                        |   |   |
| Land                                 |                        | - |   |
| Land      improvements               |   10.0            | - |   25.0 |
| Buildings                            |   12.5            | - |   40.0 |
| Machinery      and equipment         |     3.0 | - |   15.0 |
| Furniture      and fixtures          |     5.0 | - |   12.5 |
| Computer      equipment and software |     3.0 | - |     7.0 |

| (Thousands      of dollars, except per share data)                |   | 2005   |   |
|-------------------------------------------------------------------|--------|--------|--------|
|                                                              |   |   |   |
| Net      earnings, as reported                                    |   | $      | 44,544 |   |
|                                                              |   |   |   |   |
| Deduct:      Total stock-based employee compensation              |   |   |   |   |
| expense      determined under SFAS 123 for all awards, net of tax |   |   | (1,213 | ) |
|                                                              |   |   |   |   |
| Pro      forma net earnings                                       |   | $      | 43,331 |   |
|                                                              |   |   |   |   |
| Net      earnings per share:                                      |   |   |   |   |
| As      reported                                                  |   | $      | 3.10   |   |
| Pro      forma                                                    |   | $      | 3.02   |   |
| Diluted      net earnings per share                               |   |   |   |   |
| As      reported                                                  |   | $      | 3.03   |   |
| Pro      forma                                                    |   | $      | 2.95   |   |
|                                                              |   |   |   |   |

|                                 |   | 2005                 |
|--------------------------------------|--------|----------------------|
|                                 |   |                 |
| Expected      dividend yield         |   | 0.75%      - 1.75%   |
| Expected      stock price volatility |   | 38.62%      - 44.14% |
| Risk      free interest rate         |   | 4.04%      - 4.47%   |
| Expected      life of options        |   | 5 -      8 years     |

| (Thousands      of dollars)                     |   | 2007   |   |   | 2006   |   |
|-------------------------------------------------|--------|--------|--------|--------|--------|--------|
|                                            |   |   |   |   |   |   |
| Accounts      receivable                        |   | $      | 93,293 |   |   | $      | 90,508 |   |
| Notes      receivable                           |   |   | 447    |   |   |   | 472 |   |
| Other      receivables                          |   |   | 406    |   |   |   | 292 |   |
| Gross      receivables                          |   |   | 94,146 |   |   |   | 91,272 |   |
|                                            |   |   |   |   |   |   |   |   |
| Allowance      for doubtful accounts receivable |   |   | (125   | )      |   |   | (215 | ) |
| Allowance      for doubtful notes receivable    |   |   | (387   | )      |   |   | (472 | ) |
| Net      receivables                            |   | $      | 93,634 |   |   | $      | 90,585 |   |
|                                            |   |   |   |   |   |   |   |   |

| (Thousands      of dollars)                  |   | 2007   |   |   | 2006   |   |
|----------------------------------------------|--------|--------|--------|--------|--------|--------|
|                                         |   |   |   |   |   |   |
| Customer      prepayments                    |   | $      | 15,370 |   |   | $      | 9,411 |   |
| Deferred      compensation plans             |   |   | 4,650  |   |   |   | 4,069 |   |
| Accrued      professional services           |   |   | 802    |   |   |   | 1,057 |   |
| Other      accrued liabilities               |   |   | 1,119  |   |   |   | 1,440 |   |
| Total      other current accrued liabilities |   | $      | 21,941 |   |   | $      | 15,977 |   |
|                                         |   |   |   |   |   |   |   |   |

| (Thousands      of dollars)                   |   | 2007   |     |   | 2006   |   |
|-----------------------------------------------|--------|--------|----------|--------|--------|--------|
|                                          |   |   |     |   |   |   |
| Land                                          |   | $      | 3,517    |   |   | $      | 3,482 |   |
| Land      improvements                        |   |   | 9,398    |   |   |   | 8,543 |   |
| Buildings                                     |   |   | 76,095   |   |   |   | 75,082 |   |
| Machinery      and equipment                  |   |   | 235,834  |   |   |   | 219,783 |   |
| Furniture      and fixtures                   |   |   | 5,315    |   |   |   | 5,007 |   |
| Computer      equipment and software          |   |   | 14,327   |   |   |   | 14,027 |   |
| Total      property, plant and equipment      |   |   | 344,486  |   |   |   | 325,924 |   |
| Less      accumulated depreciation            |   |   | (224,357 | )      |   |   | (212,843 | ) |
| Total      property, plant and equipment, net |   | $      | 120,129  |   |   | $      | 113,081 |   |
|                                          |   |   |     |   |   |   |   |   |

| (Thousands      of dollars, except share and per share data) |   | 2007   |       |   | 2006   |   |       | 2005   |   |
|--------------------------------------------------------------|--------|--------|------------|--------|--------|--------|------------|--------|--------|
|                                                         |   |   |       |   |   |   |       |   |   |
| Numerator:                                                   |   |   |       |   |   |   |       |   |   |
| Numerator      for basic and diluted earnings per            |   |   |       |   |   |   |       |   |   |
| share-net      earnings                                      |   | $      | 74,211     |   |   | $      | 72,994     |   |   | $ | 44,544 |   |
|                                                         |   |   |       |   |   |   |       |   |   |   |   |   |
| Denominator:                                                 |   |   |       |   |   |   |       |   |   |   |   |   |
| Denominator      for basic net earnings per share            |   |   |       |   |   |   |       |   |   |   |   |   |
| weighted-average      shares                                 |   |   | 14,901,176 |   |   |   | 14,844,514 |   |   |   | 14,369,934 |   |
| Effect      of dilutive securities: employee stock           |   |   |       |   |   |   |       |   |   |   |   |   |
| options                                                      |   |   | 189,187    |   |   |   | 278,155    |   |   |   | 315,922 |   |
| Denominator      for diluted net earnings per share          |   |   |       |   |   |   |       |   |   |   |   |   |
| adjusted      weighted-average shares                        |   |   |       |   |   |   |       |   |   |   |   |   |
| assumed      conversions                                     |   |   | 15,090,363 |   |   |   | 15,122,669 |   |   |   | 14,685,856 |   |
|                                                         |   |   |       |   |   |   |       |   |   |   |   |   |
| Basic      net earnings per share                            |   | $      | 4.98       |   |   | $      | 4.92       |   |   | $ | 3.10 |   |
| Diluted      net earnings per share                          |   | $      | 4.92       |   |   | $      | 4.83       |   |   | $ | 3.03 |   |
|                                                         |   |   |       |   |   |   |       |   |   |   |   |   |

| (Thousands      of dollars)             |   | 2007   |    |   | 2006   |   |    | 2005   |   |
|-----------------------------------------|--------|--------|---------|--------|--------|--------|---------|--------|--------|
|                                    |   |   |    |   |   |   |    |   |   |
| Domestic                                |   | $      | 89,918  |   |   | $      | 86,536  |   |   | $ | 60,103 |   |
| Foreign                                 |   |   | 22,808  |   |   |   | 18,193  |   |   |   | 9,172 |   |
|                                    |   |   |    |   |   |   |    |   |   |   |   |   |
| Total      earnings before income taxes |   | $      | 112,726 |   |   | $      | 104,729 |   |   | $ | 69,275 |   |
|                                    |   |   |    |   |   |   |    |   |   |   |   |   |

| (Thousands      of dollars)              |   | 2007   |   |   | 2006   |   |   | 2005   |   |
|------------------------------------------|--------|--------|--------|--------|--------|--------|--------|--------|--------|
|                                     |   |   |   |   |   |   |   |   |   |
| Current:                                 |   |   |   |   |   |   |   |   |   |
|                                     |   |   |   |   |   |   |   |   |   |
| U.S.      federal and state income taxes |   | $      | 24,296 |   |   | $      | 32,465 |   |   | $ | 23,972 |   |
| Foreign                                  |   |   | 5,763  |   |   |   | 3,919  |   |   |   | 2,777 |   |
|                                     |   |   |   |   |   |   |   |   |   |   |   |   |
| Total      current                       |   |   | 30,059 |   |   |   | 36,384 |   |   |   | 26,749 |   |
|                                     |   |   |   |   |   |   |   |   |   |   |   |   |
| Deferred:                                |   |   |   |   |   |   |   |   |   |   |   |   |
|                                     |   |   |   |   |   |   |   |   |   |   |   |   |
| U.S.      federal and state income taxes |   |   | 8,017  |   |   |   | (4,387 | )      |   |   | (1,647 | ) |
| Foreign                                  |   |   | 439    |   |   |   | (262   | )      |   |   | (371 | ) |
|                                     |   |   |   |   |   |   |   |   |   |   |   |   |
| Total      deffered                      |   |   | 8,456  |   |   |   | (4,649 | )      |   |   | (2,018 | ) |
|                                     |   |   |   |   |   |   |   |   |   |   |   |   |
| Total                                    |   | $      | 38,515 |   |   | $      | 31,735 |   |   | $ | 24,731 |   |
|                                     |   |   |   |   |   |   |   |   |   |   |   |   |

| (Thousands      of dollars)                     |   | 2007   |   |   | 2006   |   |   | 2005   |   |
|-------------------------------------------------|--------|--------|--------|--------|--------|--------|--------|--------|--------|
|                                            |   |   |   |   |   |   |   |   |   |
| Tax      provision computed at statutory rate   |   | $      | 39,454 |   |   | $      | 36,655 |   |   | $ | 24,246 |   |
| Tax      effect of:                             |   |   |   |   |   |   |   |   |   |   |   |   |
| Expenses      for which no benefit was realized |   |   | 467    |   |   |   | 84     |   |   |   | 237 |   |
| Change      in effective state tax rate         |   |   | 61     |   |   |   | (742   | )      |   |   | - |   |
| Tax      credit                                 |   |   | (482   | )      |   |   | (1,949 | )      |   |   | - |   |
| State      taxes net of federal benefit         |   |   | 1,086  |   |   |   | 1,591  |   |   |   | 1,663 |   |
| Benefit      of export incentives               |   |   | -      |   |   |   | (846   | )      |   |   | (677 | ) |
| Benefit      of manufacturing deduction         |   |   | (1,174 | )      |   |   | (629   | )      |   |   | (439 | ) |
| Other,      net                                 |   |   | (897   | )      |   |   | (2,429 | )      |   |   | (299 | ) |
|                                            |   |   |   |   |   |   |   |   |   |   |   |   |
| Total      provision for taxes                  |   | $      | 38,515 |   |   | $      | 31,735 |   |   | $ | 24,731 |   |
|                                            |   |   |   |   |   |   |   |   |   |   |   |   |

| (Thousands      of dollars)                               |   | 2007   |    |   | 2006   |   |
|-----------------------------------------------------------|--------|--------|---------|--------|--------|--------|
|                                                      |   |   |    |   |   |   |
| Current      defered income tax assets:                   |   |   |    |   |   |   |
|                                                      |   |   |    |   |   |   |
| Gross      assets                                         |   | $      | 3,881   |   |   | $      | 11,036 |   |
| Gross      liabilities                                    |   |   | (2,266  | )      |   |   | (3,117 | ) |
|                                                      |   |   |    |   |   |   |   |   |
| Total      current deferred income tax assets, net        |   |   | 1,615   |   |   |   | 7,919 |   |
|                                                      |   |   |    |   |   |   |   |   |
| Noncurrent      defered income tax liabilities:           |   |   |    |   |   |   |   |   |
|                                                      |   |   |    |   |   |   |   |   |
| Gross      assets                                         |   |   | 8,475   |   |   |   | 4,949 |   |
| Gross      liabilities                                    |   |   | (43,075 | )      |   |   | (32,971 | ) |
|                                                      |   |   |    |   |   |   |   |   |
| Total      noncurrent defered income tax liabilities, net |   |   | (34,600 | )      |   |   | (28,022 | ) |
|                                                      |   |   |    |   |   |   |   |   |
| Net      deferred income tax liabilities                  |   | $      | (32,985 | )      |   | $      | (20,103 | ) |
|                                                      |   |   |    |   |   |   |   |   |

| (Thousands      of dollars)              |   | 2007   |    |   | 2006   |   |
|------------------------------------------|--------|--------|---------|--------|--------|--------|
|                                     |   |   |    |   |   |   |
| Inventories                              |   | $      | (931    | )      |   | $      | 5,148 |   |
| Prepaid      pension costs               |   |   | (23,513 | )      |   |   | (18,801 | ) |
| Payroll      and benefits                |   |   | 639     |   |   |   | 825 |   |
| Accrued      warranty expenses           |   |   | 1,117   |   |   |   | 1,195 |   |
| Postretirement      benefits             |   |   | 4,923   |   |   |   | 4,368 |   |
| Prepaid      expenses                    |   |   | (348    | )      |   |   | (232 | ) |
| Depreciation                             |   |   | (13,656 | )      |   |   | (12,701 | ) |
| Accrued      liabilities                 |   |   | 718     |   |   |   | 728 |   |
| Other,      net                          |   |   | (1,934  | )      |   |   | (633 | ) |
|                                     |   |   |    |   |   |   |   |   |
| Net      deferred income tax liabilities |   | $      | (32,985 | )      |   | $      | (20,103 | ) |
|                                     |   |   |    |   |   |   |   |   |

| (Thousands      of dollars)                            |   | 2007   |   |
|--------------------------------------------------------|--------|--------|--------|
|                                                   |   |   |   |
| Balance      at January 1, 2007                        |   | $      | 3,382  |   |
|                                                   |   |   |   |   |
| Gross      increases- current year tax positions       |   |   | 293    |   |
| Gross      increases- tax positions from prior periods |   |   | 21     |   |
| Gross      decreases- tax positions from prior periods |   |   | (648   | ) |
| Settlements                                            |   |   | (306   | ) |
|                                                   |   |   |   |   |
| Balance      at December 31, 2007                      |   | $      | 2,742  |   |
|                                                   |   |   |   |   |

| (Thousands      of dollars)              |   | 2007   |    |   | 2006   |   |
|------------------------------------------|--------|--------|---------|--------|--------|--------|
|                                     |   |   |    |   |   |   |
| Gross      inventories @ FIFO:           |   |   |    |   |   |   |
| Finished      goods                      |   | $      | 5,790   |   |   | $      | 7,182 |   |
| Work      in progress                    |   |   | 21,674  |   |   |   | 21,121 |   |
| Raw      materials & component parts |   |   | 88,722  |   |   |   | 77,598 |   |
| Maintenance,      tooling & supplies |   |   | 11,638  |   |   |   | 10,861 |   |
| Total      gross inventories @ FIFO      |   |   | 127,824 |   |   |   | 116,762 |   |
| Less      reserves:                      |   |   |    |   |   |   |   |   |
| LIFO                                     |   |   | 30,110  |   |   |   | 28,888 |   |
| Valuation                                |   |   | 1,893   |   |   |   | 2,244 |   |
| Total      inventories as reported       |   | $      | 95,821  |   |   | $      | 85,630 |   |
|                                     |   |   |    |   |   |   |   |   |

|                                 |   | Gross      Carrying |   |   | Accumulated  |   |
|--------------------------------------|--------|---------------------|--------|--------|--------------|--------|
| (Thousands      of dollars)          |   | Amount              |   |   | Amortization |   |
|                                 |   |                |   |   |         |   |
| Amortized      intangible assets     |   |                |   |   |         |   |
|                                 |   |                |   |   |         |   |
| Non-compete      agreeements:        |   |                |   |   |         |   |
|                                 |   |                |   |   |         |   |
| As      of December 31, 2006         |   | $                   | 515    |   |         | $      | (317 | ) |
| As      of December 31, 2007         |   |                | 604    |   |         |   | (493 | ) |
|                                 |   |                |   |   |         |   |   |   |
|                                 |   |                |   |   |         |   |   |   |
| Aggregate      amortization expense: |   |                |   |   |         |   |   |   |
|                                 |   |                |   |   |         |   |   |   |
| For      the year ended 12/31/05     |   | $                   | 99     |   |         |   |   |   |
| For      the year ended 12/31/06     |   |                | 106    |   |         |   |   |   |
| For      the year ended 12/31/07     |   |                | 112    |   |         |   |   |   |
|                                 |   |                |   |   |         |   |   |   |
| Estimated      amortization expense: |   |                |   |   |         |   |   |   |
|                                 |   |                |   |   |         |   |   |   |
| For      the year ended 12/31/08     |   | $                   | 111    |   |         |   |   |   |
| For      the year ended 12/31/09     |   |                | -      |   |         |   |   |   |
| For      the year ended 12/31/10     |   |                | -      |   |         |   |   |   |
| For      the year ended 12/31/11     |   |                | -      |   |         |   |   |   |
| For      the year ended 12/31/12     |   |                | -      |   |         |   |   |   |

|                              |   |           |   |   | Power        |   |   |    |   |   |   |   |
|-----------------------------------|--------|----------------|--------|--------|--------------|--------|--------|---------|--------|--------|--------|--------|
| (Thousands      of dollars)       |   | Oil      Field |   |   | Transmission |   |   | Trailer |   |   | Total  |   |
|                              |   |           |   |   |         |   |   |    |   |   |   |   |
| Balance      as of 12/31/06       |   | $              | 9,432  |   |         | $      | 2,300  |    |   | $      | -      |   |   | $ | 11,732 |   |
|                              |   |           |   |   |         |   |   |    |   |   |   |   |   |   |   |   |
| Foreign      currency translation |   |           | 15     |   |         |   | 243    |    |   |   | -      |   |   |   | 258 |   |
|                              |   |           |   |   |         |   |   |    |   |   |   |   |   |   |   |   |
| Balance      as of 12/31/07       |   | $              | 9,447  |   |         | $      | 2,543  |    |   | $      | -      |   |   | $ | 11,990 |   |
|                              |   |           |   |   |         |   |   |    |   |   |   |   |   |   |   |   |

| (Thousands      of dollars)                       |   | 2007   |   |   | 2006   |   |   | 2005   |   |
|---------------------------------------------------|--------|--------|--------|--------|--------|--------|--------|--------|--------|
|                                              |   |   |   |   |   |   |   |   |   |
| Stock-based      compensation expense             |   | $      | 3,682  |   |   | $      | 2,908  |   |   | $ | 1,886 |   |
| Tax      benefit                                  |   |   | (1,362 | )      |   |   | (1,105 | )      |   |   | (673 | ) |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |
| Stock-based      compensation expense, net of tax |   | $      | 2,320  |   |   | $      | 1,803  |   |   | $ | 1,213 |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |

|                                                     |   | 2007                 |   | 2006                 |   | 2005                 |
|----------------------------------------------------------|--------|----------------------|--------|----------------------|--------|----------------------|
|                                                     |   |                 |   |                 |   |                 |
| Expected      dividend yield                             |   | 1.30%      - 1.60%   |   | 0.69%      - 1.30%   |   | 0.75%      - 1.75%   |
| Expected      stock price volatility                     |   | 41.10%      - 46.20% |   | 44.12%      - 48.00% |   | 38.62%      - 44.14% |
| Risk      free interest rate                             |   | 3.71%      - 4.85%   |   | 4.52%      - 5.03%   |   | 4.04%      - 4.47%   |
| Expected      life of options                            |   | 3 -      6 years     |   | 1 -      6 years     |   | 5 -      8 years     |
| Weighted-average      fair value per share at grant date |   | $23.48               |   | $22.82               |   | $15.16               |

|                                  |   |   |     |   |      |   |   | Weighted-   |   |   |      |   |
|---------------------------------------|--------|--------|----------|--------|-----------|--------|--------|-------------|--------|--------|-----------|--------|
|                                  |   |   |     |   | Weighted- |   |   | Average     |   |   | Aggregate |   |
|                                  |   |   |     |   | Average   |   |   | Remaining   |   |   | Intrinsic |   |
|                                  |   |   |     |   | Exercise  |   |   | Contractual |   |   | Value     |   |
| Options                               |   | Shares |     |   | Price     |   |   | Term        |   |   | ($000's)  |   |
|                                  |   |   |     |   |      |   |   |        |   |   |      |   |
| Outstanding      at January 1, 2007   |   |   | 743,761  |   |      | $      | 29.06  |        |   |   |      |   |   |   |
| Granted                               |   |   | 135,350  |   |      |   | 59.80  |        |   |   |      |   |   |   |
| Exercised                             |   |   | (211,281 | )      |      |   | 16.41  |        |   |   |      |   |   |   |
| Forfeited      or expired             |   |   | (8,687   | )      |      |   | 39.92  |        |   |   |      |   |   |   |
| Outstanding      at December 31, 2007 |   |   | 659,143  |   |      | $      | 39.28  |        |   |   | 7.4       |   |   | $ | 12,867 |   |
| Exercisable      at December 31, 2007 |   |   | 399,941  |   |      | $      | 30.87  |        |   |   | 6.5       |   |   | $ | 11,095 |   |
|                                  |   |   |     |   |      |   |   |        |   |   |      |   |   |   |   |   |

|                                            |   | Pre-Tax |   |   | Tax      (Expense)/ |   |   | Net    |   |
|-------------------------------------------------|--------|---------|--------|--------|---------------------|--------|--------|--------|--------|
| (Thousands      of dollars)                     |   | Amount  |   |   | Benefit             |   |   | Amount |   |
| Year      ended December 31, 2005               |   |    |   |   |                |   |   |   |   |
|                                            |   |    |   |   |                |   |   |   |   |
| Foreign      currency translation adjustments   |   | $       | (727   | )      |                | $      | -      |   |   | $ | (727 | ) |
| Other      comprehensive income                 |   | $       | (727   | )      |                | $      | -      |   |   | $ | (727 | ) |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Year      ended December 31, 2006               |   |    |   |   |                |   |   |   |   |   |   |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Foreign      currency translation adjustments   |   | $       | 1,012  |   |                | $      | -      |   |   | $ | 1,012 |   |
| Initial      application of FAS 158:            |   |    |   |   |                |   |   |   |   |   |   |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Defined      benefit pension plans:             |   |    |   |   |                |   |   |   |   |   |   |   |
| Net      prior service cost                     |   |    | (7,294 | )      |                |   | 2,553  |   |   |   | (4,741 | ) |
| Net      loss                                   |   |    | (3,129 | )      |                |   | 1,095  |   |   |   | (2,034 | ) |
| Net      transition asset                       |   |    | 1,565  |   |                |   | (548   | )      |   |   | 1,017 |   |
| Total      defined benefit pension plans        |   |    | (8,858 | )      |                |   | 3,100  |   |   |   | (5,758 | ) |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Defined      benefit postretirement plans:      |   |    |   |   |                |   |   |   |   |   |   |   |
| Net      gain                                   |   |    | 2,046  |   |                |   | (717   | )      |   |   | 1,329 |   |
| Total      defined benefit postretirement plans |   |    | 2,046  |   |                |   | (717   | )      |   |   | 1,329 |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Other      comprehensive income                 |   | $       | (5,800 | )      |                | $      | 2,383  |   |   | $ | (3,417 | ) |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Year      ended December 31, 2007               |   |    |   |   |                |   |   |   |   |   |   |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Foreign      currency translation adjustments   |   | $       | 5,057  |   |                | $      | -      |   |   | $ | 5,057 |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Defined      benefit pension plans:             |   |    |   |   |                |   |   |   |   |   |   |   |
| Amortization      of net prior service cost     |   |    | 566    |   |                |   | (207   | )      |   |   | 359 |   |
| Amortization      of net loss                   |   |    | 102    |   |                |   | (37    | )      |   |   | 65 |   |
| Amortization      of net transition asset       |   |    | (926   | )      |                |   | 339    |   |   |   | (587 | ) |
| Net      gain arising during period             |   |    | 11,265 |   |                |   | (4,123 | )      |   |   | 7,142 |   |
| Total      defined benefit pension plans        |   |    | 11,007 |   |                |   | (4,028 | )      |   |   | 6,979 |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Defined      benefit postretirement plans:      |   |    |   |   |                |   |   |   |   |   |   |   |
| Amortization      of net gain                   |   |    | (227   | )      |                |   | 83     |   |   |   | (144 | ) |
| Net      gain arising during period             |   |    | 1,022  |   |                |   | (374   | )      |   |   | 648 |   |
| Total      defined benefit postretirement plans |   |    | 795    |   |                |   | (291   | )      |   |   | 504 |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |
| Other      comprehensive income                 |   | $       | 16,859 |   |                | $      | (4,319 | )      |   | $ | 12,540 |   |
|                                            |   |    |   |   |                |   |   |   |   |   |   |   |

|                                |   |        |   |   | Defined |   |   | Defined        |   |   | Accumulated   |   |
|-------------------------------------|--------|-------------|--------|--------|---------|--------|--------|----------------|--------|--------|---------------|--------|
|                                |   | Foreign     |   |   | Benefit |   |   | Benefit        |   |   | Other         |   |
|                                |   | Currency    |   |   | Pension |   |   | Postretirement |   |   | Comprehensive |   |
| (Thousands      of dollars)         |   | Translation |   |   | Plans   |   |   | Plans          |   |   | Income        |   |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |
| Balance,      Dec. 31, 2005         |   | $           | 1,946  |   |    | $      | -      |           |   | $      | -             |   |   | $ | 1,946 |   |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |   |   |   |   |
| Current-period      change          |   |        | 1,012  |   |    |   | -      |           |   |   | -             |   |   |   | 1,012 |   |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |   |   |   |   |
| Initial      application of FAS 158 |   |        | -      |   |    |   | (5,758 | )              |   |   | 1,329         |   |   |   | (4,429 | ) |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |   |   |   |   |
| Balance,      Dec. 31, 2006         |   |        | 2,958  |   |    |   | (5,758 | )              |   |   | 1,329         |   |   |   | (1,471 | ) |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |   |   |   |   |
| Current-period      change          |   |        | 5,057  |   |    |   | 6,979  |           |   |   | 504           |   |   |   | 12,540 |   |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |   |   |   |   |
| Balance,      Dec. 31, 2007         |   | $           | 8,015  |   |    | $      | 1,221  |           |   | $      | 1,833         |   |   | $ | 11,069 |   |
|                                |   |        |   |   |    |   |   |           |   |   |          |   |   |   |   |   |

|                                                |   | Pension      Benefits |    |   | Other      Benefits |   |
|-----------------------------------------------------|--------|-----------------------|---------|--------|---------------------|--------|
| (Thousands      of dollars)                         |   | 2007                  |    |   | 2006                |   |   | 2007 |   |   | 2006 |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |
| Changes      in benefit obligation                  |   |                  |    |   |                |   |   |   |   |   |   |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |
| Benefit      obligation at beginning of year        |   | $                     | 170,861 |   |                | $      | 182,375 |   |   | $ | 9,225 |   |   | $ | 13,087 |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Service      cost                                   |   |                  | 5,452   |   |                |   | 5,178 |   |   |   | 174 |   |   |   | 172 |   |
| Interest      cost                                  |   |                  | 9,725   |   |                |   | 9,104 |   |   |   | 458 |   |   |   | 502 |   |
| Plan      participants' contributions               |   |                  | -       |   |                |   | - |   |   |   | 1,192 |   |   |   | 1,045 |   |
| Actuarial      loss (gain)                          |   |                  | (6,672  | )      |                |   | (18,262 | ) |   |   | (1,021 | ) |   |   | (3,895 | ) |
| Benefits      paid                                  |   |                  | (7,921  | )      |                |   | (7,534 | ) |   |   | (2,102 | ) |   |   | (1,686 | ) |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Benefit      obligation at end of year              |   |                  | 171,445 |   |                |   | 170,861 |   |   |   | 7,926 |   |   |   | 9,225 |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Change      in plan assets                          |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Fair      value of plan assets at beginning of year |   |                  | 224,626 |   |                |   | 209,560 |   |   |   | - |   |   |   | - |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Actual      return on plan assets                   |   |                  | 22,239  |   |                |   | 22,567 |   |   |   | - |   |   |   | - |   |
| Employer      contributions                         |   |                  | 31      |   |                |   | 33 |   |   |   | 910 |   |   |   | 641 |   |
| Plan      participants' contributions               |   |                  | -       |   |                |   | - |   |   |   | 1,192 |   |   |   | 1,045 |   |
| Benefits      paid                                  |   |                  | (7,921  | )      |                |   | (7,534 | ) |   |   | (2,102 | ) |   |   | (1,686 | ) |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Fair      value of plan assets at end of year       |   |                  | 238,975 |   |                |   | 224,626 |   |   |   | - |   |   |   | - |   |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Funded      (unfunded) status at end of year        |   | $                     | 67,530  |   |                | $      | 53,765 |   |   | $ | (7,926 | ) |   | $ | (9,225 | ) |
|                                                |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |

|                                   |   | Pension      Benefits |   |   | Other      Benefits |   |
|----------------------------------------|--------|-----------------------|--------|--------|---------------------|--------|
| (Thousands      of dollars)            |   | 2007                  |   |   | 2006                |   |   | 2007 |   |   | 2006 |   |
|                                   |   |                  |   |   |                |   |   |   |   |   |   |   |
| Prepaid      pension costs             |   | $                     | 71,571 |   |                | $      | 56,856 |   |   | $ | - |   |   | $ | - |   |
| Other      current accrued liabilities |   |                  | (241   | )      |                |   | (154 | ) |   |   | (623 | ) |   |   | (750 | ) |
| Postretirement      benefits           |   |                  | -      |   |                |   | - |   |   |   | (7,303 | ) |   |   | (8,475 | ) |
| Other      non-current liabilities     |   |                  | (3,800 | )      |                |   | (2,937 | ) |   |   | - |   |   |   | - |   |
|                                   |   |                  |   |   |                |   |   |   |   |   |   |   |   |   |   |   |
|                                   |   | $                     | 67,530 |   |                | $      | 53,765 |   |   | $ | (7,926 | ) |   | $ | (9,225 | ) |
|                                   |   |                  |   |   |                |   |   |   |   |   |   |   |   |   |   |   |

|                        |   | Pension      Benefits |   |   | Other      Benefits |   |
|-----------------------------|--------|-----------------------|--------|--------|---------------------|--------|
| (Thousands      of dollars) |   | 2007                  |   |   | 2006                |   |   | 2007 |   |   | 2006 |   |
|                        |   |                  |   |   |                |   |   |   |   |   |   |   |
| Prior      service cost     |   | $                     | 4,006  |   |                | $      | 4,741 |   |   | $ | - |   |   | $ | - |   |
| Net      loss (gain)        |   |                  | (4,847 | )      |                |   | 2,034 |   |   |   | (1,833 | ) |   |   | (1,329 | ) |
| Transition      asset       |   |                  | (380   | )      |                |   | (1,017 | ) |   |   | - |   |   |   | - |   |
|                        |   |                  |   |   |                |   |   |   |   |   |   |   |   |   |   |   |
|                        |   | $                     | (1,221 | )      |                | $      | 5,758 |   |   | $ | (1,833 | ) |   | $ | (1,329 | ) |
|                        |   |                  |   |   |                |   |   |   |   |   |   |   |   |   |   |   |

|                                    |   | Pension      Benefits |    |   | Other      Benefits |   |
|-----------------------------------------|--------|-----------------------|---------|--------|---------------------|--------|
| (Thousands      of dollars)             |   | 2007                  |    |   | 2006                |   |   | 2007 |   |   | 2006 |   |
|                                    |   |                  |    |   |                |   |   |   |   |   |   |   |
| Net      Periodic Benefit Cost          |   |                  |    |   |                |   |   |   |   |   |   |   |
|                                    |   |                  |    |   |                |   |   |   |   |   |   |   |
| Service      cost                       |   | $                     | 5,452   |   |                | $      | 5,178 |   |   | $ | 174 |   |   | $ | 172 |   |
| Interest      cost                      |   |                  | 9,725   |   |                |   | 9,104 |   |   |   | 458 |   |   |   | 502 |   |
| Expected      return on plan assets     |   |                  | (17,646 | )      |                |   | (16,458 | ) |   |   | - |   |   |   | - |   |
| Amortization      of prior service cost |   |                  | 566     |   |                |   | 566 |   |   |   | - |   |   |   | - |   |
| Amortization      of net (gain) loss    |   |                  | 102     |   |                |   | 61 |   |   |   | (227 | ) |   |   | (156 | ) |
| Amortization      of transition asset   |   |                  | (926    | )      |                |   | (926 | ) |   |   | - |   |   |   | - |   |
|                                    |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |
| Net      periodic benefit cost (income) |   |                  | (2,727  | )      |                |   | (2,475 | ) |   |   | 405 |   |   |   | 518 |   |
|                                    |   |                  |    |   |                |   |   |   |   |   |   |   |   |   |   |   |

|                               |   |   |   |               | Pension      Benefits |   | Other      Benefits |
|------------------------------------|--------|--------|--------|--------------------|-----------------------|--------|---------------------|
|                               |   |   |   |               | 2007                  |   | 2006                |   | 2007 |   | 2006 |
|                               |   |   |   |               |                  |   |                |   |   |   |   |
| Discount      rate                 |   |   |   | 6.25%      - 6.35% |                  | 5.75%  |                | 6.20% |   | 5.75% |
| Rate      of compensation increase |   |   | 4.50%  |               | 4.50%                 |   | N/A                 |   | N/A |

|                                          |   |   |   |   | Pension      Benefits |   | Other      Benefits |
|-----------------------------------------------|--------|--------|--------|--------|-----------------------|--------|---------------------|
|                                          |   |   |   |   | 2007                  |   | 2006                |   | 2007 |   | 2006 |
|                                          |   |   |   |   |                  |   |                |   |   |   |   |
| Discount      rate                            |   |   |   | 5.75%  |                  | 5.50%  |                | 5.75% |   | 5.50% |
| Expected      long-term return on plan assets |   | 8.00%  |   | 8.00%  |                  | N/A    |                | N/A |
| Rate      of compensation increase            |   |   | 4.50%  |   | 4.50%                 |   | N/A                 |   | N/A |

|                   |   |           | Target              |   | Plan      Assets     |
|------------------------|--------|----------------|---------------------|--------|----------------------|
|                   |   |           | Allocation          |   | At      December 31, |
|                   |   |           | 2008                |   | 2007                 |   | 2006 |
|                   |   |           |                |   |                 |   |   |
| Equity      securities |   | 40%      - 70% |                | 56%    |                 | 53% |
| Debt      securities   |   | 30%      - 60% |                | 21%    |                 | 26% |
| Real      estate       |   |           |  0%      - 15% |   | 9%                   |   | 9% |
| Other                  |   |           |  0%      - 15% |   | 14%                  |   | 12% |
|                   |   |           |                |   |                 |   |   |
| Total                  |   |           |                |   | 100%                 |   | 100% |
|                   |   |           |                |   |                 |   |   |

|                        |   | Pension  |   |   | Other    |   |
|-----------------------------|--------|----------|--------|--------|----------|--------|
| (Thousands      of dollars) |   | Benefits |   |   | Benefits |   |
|                        |   |     |   |   |     |   |
| 2008                        |   | $        | 8,916  |   |     | $      | 642 |   |
| 2009                        |   |     | 9,526  |   |     |   | 666 |   |
| 2010                        |   |     | 10,112 |   |     |   | 681 |   |
| 2011                        |   |     | 10,793 |   |     |   | 697 |   |
| 2012                        |   |     | 11,524 |   |     |   | 705 |   |
| 2013      - 2017            |   |     | 67,169 |   |     |   | 3,628 |   |

| (Thousands      of dollars)       |   | 2007   |   |   | 2006   |   |
|-----------------------------------|--------|--------|--------|--------|--------|--------|
|                              |   |   |   |   |   |   |
| Beginning      balance            |   | $      | 3,668  |   |   | $      | 3,245 |   |
|                              |   |   |   |   |   |   |   |   |
| Claims      paid                  |   |   | (3,185 | )      |   |   | (2,550 | ) |
| Additional      warranties issued |   |   | 3,108  |   |   |   | 3,192 |   |
| Revisions      in estimates       |   |   | 21     |   |   |   | (251 | ) |
| Foreign      currency translation |   |   | 29     |   |   |   | 32 |   |
|                              |   |   |   |   |   |   |   |   |
| Ending      balance               |   | $      | 3,641  |   |   | $      | 3,668 |   |
|                              |   |   |   |   |   |   |   |   |

| (Thousands      of dollars) |   |   |   |
|-----------------------------|--------|--------|--------|
|                        |   |   |   |
| 2008                        |   | $      | 1,118  |   |
| 2009                        |   |   | 700    |   |
| 2010                        |   |   | 561    |   |
| 2011                        |   |   | 268    |   |
| 2012                        |   |   | 172    |   |
|                        |   |   |   |   |
| All      years              |   | $      | 3,020  |   |

| (Thousands      of dollars)                                    |   | 2007   |    |   | 2006   |   |    | 2005   |   |
|----------------------------------------------------------------|--------|--------|---------|--------|--------|--------|---------|--------|--------|
| Sales      by segment:                                         |   |   |    |   |   |   |    |   |   |
| Oil      Field                                                 |   | $      | 397,354 |   |   | $      | 401,200 |   |   | $ | 307,075 |   |
| Power      Transmission                                        |   |   | 158,452 |   |   |   | 124,922 |   |   |   | 106,616 |   |
| Trailer                                                        |   |   | 41,381  |   |   |   | 79,370  |   |   |   | 78,476 |   |
| Total      sales                                               |   | $      | 597,187 |   |   | $      | 605,492 |   |   | $ | 492,167 |   |
| Sales      by geographic region:                               |   |   |    |   |   |   |    |   |   |   |   |   |
| United      States                                             |   | $      | 355,994 |   |   | $      | 428,211 |   |   | $ | 355,631 |   |
| Europe                                                         |   |   | 49,136  |   |   |   | 32,789  |   |   |   | 28,552 |   |
| Canada                                                         |   |   | 33,277  |   |   |   | 40,143  |   |   |   | 34,140 |   |
| Latin      America                                             |   |   | 83,086  |   |   |   | 60,049  |   |   |   | 51,346 |   |
| Other                                                          |   |   | 75,694  |   |   |   | 44,300  |   |   |   | 22,498 |   |
| Total      sales                                               |   | $      | 597,187 |   |   | $      | 605,492 |   |   | $ | 492,167 |   |
| Earnings      (loss) before income taxes:                      |   |   |    |   |   |   |    |   |   |   |   |   |
| Oil      Field                                                 |   | $      | 83,737  |   |   | $      | 85,325  |   |   | $ | 57,659 |   |
| Power      Transmission                                        |   |   | 27,160  |   |   |   | 19,022  |   |   |   | 13,492 |   |
| Trailer                                                        |   |   | (1,797  | )      |   |   | (1,661  | )      |   |   | (2,454 | ) |
| Corporate                                                      |   |   | 3,626   |   |   |   | 2,043   |   |   |   | 578 |   |
| Total      earnings (loss) before income taxes                 |   | $      | 112,726 |   |   | $      | 104,729 |   |   | $ | 69,275 |   |
| Assets      by segment:                                        |   |   |    |   |   |   |    |   |   |   |   |   |
| Oil      Field                                                 |   | $      | 218,528 |   |   | $      | 213,854 |   |   | $ | 184,330 |   |
| Power      Transmission                                        |   |   | 141,566 |   |   |   | 105,013 |   |   |   | 87,485 |   |
| Trailer                                                        |   |   | 22,151  |   |   |   | 27,582  |   |   |   | 39,433 |   |
| Corporate                                                      |   |   | 118,411 |   |   |   | 82,620  |   |   |   | 48,547 |   |
| Total      assets                                              |   | $      | 500,656 |   |   | $      | 429,069 |   |   | $ | 359,795 |   |
| Property,      plant & equipmet, net, by geographic region |   |   |    |   |   |   |    |   |   |   |   |   |
| United      States                                             |   | $      | 84,914  |   |   | $      | 81,385  |   |   | $ | 70,017 |   |
| Europe                                                         |   |   | 10,947  |   |   |   | 10,740  |   |   |   | 6,948 |   |
| Canada                                                         |   |   | 14,055  |   |   |   | 11,612  |   |   |   | 7,309 |   |
| Latin      America                                             |   |   | 9,926   |   |   |   | 8,985   |   |   |   | 8,582 |   |
| Other                                                          |   |   | 287     |   |   |   | 359     |   |   |   | 124 |   |
| Total      P, P & E, net                                   |   | $      | 120,129 |   |   | $      | 113,081 |   |   | $ | 92,980 |   |
| Capital      expenditures by segment                           |   |   |    |   |   |   |    |   |   |   |   |   |
| Oil      Field                                                 |   | $      | 12,830  |   |   | $      | 19,554  |   |   | $ | 11,815 |   |
| Power      Transmission                                        |   |   | 5,159   |   |   |   | 10,486  |   |   |   | 2,668 |   |
| Trailer                                                        |   |   | 438     |   |   |   | 358     |   |   |   | 523 |   |
| Corporate                                                      |   |   | 826     |   |   |   | 843     |   |   |   | 797 |   |
| Total      capital expenditures                                |   | $      | 19,253  |   |   | $      | 31,241  |   |   | $ | 15,803 |   |
| Depreciation/amortization      by segment:                     |   |   |    |   |   |   |    |   |   |   |   |   |
| Oil      Field                                                 |   | $      | 8,578   |   |   | $      | 7,166   |   |   | $ | 6,257 |   |
| Power      Transmission                                        |   |   | 4,704   |   |   |   | 3,595   |   |   |   | 3,662 |   |
| Trailer                                                        |   |   | 516     |   |   |   | 636     |   |   |   | 490 |   |
| Corporate                                                      |   |   | 726     |   |   |   | 553     |   |   |   | 968 |   |
| Total      depreciation/amortization                           |   | $      | 14,524  |   |   | $      | 11,950  |   |   | $ | 11,377 |   |

| Year Ended December      31, 2007 |   |
|-----------------------------------|--------|
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                              |   |   |   |   | Power |   |   |   |   |   |   |   |   |   |   |
| (Thousands      of dollars)       |   | Oil      Field |   |   | Transmission |   |   | Trailer |   |   | Corporate |   |   | Total |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Gross      sales                  |   | $ | 399,955 |   |   | $ | 161,731 |   |   | $ | 41,511 |   |   | $ | - |   |   | $ | 603,197 |   |
| Inter-segment      sales          |   |   | (2,601 | ) |   |   | (3,279 | ) |   |   | (130 | ) |   |   | - |   |   |   | (6,010 | ) |
| Net      sales                    |   | $ | 397,354 |   |   | $ | 158,452 |   |   | $ | 41,381 |   |   | $ | - |   |   | $ | 597,187 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Operating      income (loss)      |   | $ | 82,629 |   |   | $ | 27,122 |   |   | $ | (2,417 | ) |   | $ | - |   |   | $ | 107,334 |   |
| Other      income (expense), net  |   |   | 1,108 |   |   |   | 38 |   |   |   | 619 |   |   |   | 3,627 |   |   |   | 5,392 |   |
| Earnings      (loss) before       |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| income      tax provision         |   | $ | 83,737 |   |   | $ | 27,160 |   |   | $ | (1,798 | ) |   | $ | 3,627 |   |   | $ | 112,726 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Year Ended December      31, 2006 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                              |   |   |   |   |   | Power |   |   |   |   |   |   |   |   |   |   |   |   |   |
| (Thousands      of dollars)       |   | Oil      Field |   |   | Transmission |   |   | Trailer |   |   | Corporate |   |   | Total |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Gross      sales                  |   | $ | 404,432 |   |   | $ | 133,674 |   |   | $ | 79,413 |   |   | $ | - |   |   | $ | 617,519 |   |
| Inter-segment      sales          |   |   | (3,232 | ) |   |   | (8,752 | ) |   |   | (43 | ) |   |   | - |   |   |   | (12,027 | ) |
| Net      sales                    |   | $ | 401,200 |   |   | $ | 124,922 |   |   | $ | 79,370 |   |   | $ | - |   |   | $ | 605,492 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Operating      income (loss)      |   | $ | 85,790 |   |   | $ | 19,126 |   |   | $ | (1,661 | ) |   | $ | - |   |   | $ | 103,255 |   |
| Other      income (expense), net  |   |   | (465 | ) |   |   | (104 | ) |   |   | - |   |   |   | 2,043 |   |   |   | 1,474 |   |
| Earnings      (loss) before       |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| income      tax provision         |   | $ | 85,325 |   |   | $ | 19,022 |   |   | $ | (1,661 | ) |   | $ | 2,043 |   |   | $ | 104,729 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Year Ended December      31, 2005 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                              |   |   |   |   |   | Power |   |   |   |   |   |   |   |   |   |   |   |   |   |
| (Thousands      of dollars)       |   | Oil      Field |   |   | Transmission |   |   | Trailer |   |   | Corporate |   |   | Total |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Gross      sales                  |   | $ | 312,803 |   |   | $ | 112,527 |   |   | $ | 78,480 |   |   | $ | - |   |   | $ | 503,810 |   |
| Inter-segment      sales          |   |   | (5,728 | ) |   |   | (5,911 | ) |   |   | (4 | ) |   |   | - |   |   |   | (11,643 | ) |
| Net      sales                    |   | $ | 307,075 |   |   | $ | 106,616 |   |   | $ | 78,476 |   |   | $ | - |   |   | $ | 492,167 |   |
|                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Operating      income (loss)      |   | $ | 58,037 |   |   | $ | 13,621 |   |   | $ | (2,452 | ) |   | $ | - |   |   | $ | 69,206 |   |
| Other      income (expense), net  |   |   | (378 | ) |   |   | (129 | ) |   |   | (2 | ) |   |   | 578 |   |   |   | 69 |   |
| Earnings      (loss) before       |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| income      tax provision         |   | $ | 57,659 |   |   | $ | 13,492 |   |   | $ | (2,454 | ) |   | $ | 578 |   |   | $ | 69,275 |   |

| Quarterly Financial      Data (Unaudited)         |   |
|---------------------------------------------------|--------|
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |
|                                              |   | First |   |   | Second |   |   | Third |   |   | Fourth |   |
| (Millions      of dollars, except per share data) |   | Quarter |   |   | Quarter |   |   | Quarter |   |   | Quarter |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |
| 2007                                              |   |   |   |   |   |   |   |   |   |   |   |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |
| Sales                                             |   | $ | 148.1 |   |   | $ | 144.5 |   |   | $ | 146.9 |   |   | $ | 157.7 |   |
| Gross      profit                                 |   |   | 40.0 |   |   |   | 40.3 |   |   |   | 41.0 |   |   |   | 45.1 |   |
| Net      earnings                                 |   |   | 17.8 |   |   |   | 17.5 |   |   |   | 19.1 |   |   |   | 19.8 |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Basic      earnings per share                     |   |   | 1.19 |   |   |   | 1.17 |   |   |   | 1.28 |   |   |   | 1.35 |   |
| Diluted      earnings per share                   |   |   | 1.17 |   |   |   | 1.15 |   |   |   | 1.26 |   |   |   | 1.34 |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 2006                                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Sales                                             |   | $ | 133.4 |   |   | $ | 147.7 |   |   | $ | 158.8 |   |   | $ | 165.6 |   |
| Gross      profit                                 |   |   | 35.4 |   |   |   | 39.1 |   |   |   | 38.7 |   |   |   | 43.0 |   |
| Net      earnings                                 |   |   | 15.2 |   |   |   | 17.4 |   |   |   | 17.4 |   |   |   | 23.0 |   |
|                                              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Basic      earnings per share                     |   |   | 1.03 |   |   |   | 1.18 |   |   |   | 1.17 |   |   |   | 1.54 |   |
| Diluted      earnings per share                   |   |   | 1.01 |   |   |   | 1.16 |   |   |   | 1.15 |   |   |   | 1.52 |   |

| 3.1    |   | Fourth      Restated Articles of Incorporation, as amended, included as Exhibit 4.1 to      Lufkin Industries, Inc.’s (the “Company”) registration statement on Form      S-8 filed February 17, 2004 (File No. 333-112890), which exhibit is      incorporated herein by reference.                                                 |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 3.2    |   | Articles      of Amendment to Fourth Restated Articles of Incorporation, included as      Exhibit 3.1 to the Company’s current report on Form 8-K of the registrant      filed December 10, 1999, which exhibit is incorporated herein by      reference.                                                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 3.3    |   | Amended      and Restated Bylaws, included as Exhibit 3.1 to the Company’s current      report on Form 8-K of the registrant filed October 9, 2007 (File No.      0-02612), which exhibit is incorporated herein by    reference.                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 4.1    |   | Form      of Common Stock Certificate, included as Exhibit 4.1 to the Company’s      quarterly report on Form 10-Q of the registrant filed May 9, 2005 (File      No. 0-02612), which exhibit is incorporated herein by      reference.                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.1  |   | 1990      Stock Option Plan, included as Exhibit 4.3 to the Company's registration      statement on Form S-8 dated August 23, 1995 (File No. 33-62021), which      plan is incorporated herein by reference.                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.2  |   | 1996      Nonemployee Director Stock Option Plan, included as Exhibit 4.3 to the      Company's registration statement on Form S-8 dated June 28, 1996 (File No.      333-07129), which plan is incorporated herein by  reference.                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.3  |   | Amended      and Restated Incentive Stock Compensation Plan 2000, included as Exhibit      10.1 to the Company's current report on Form 8-K dated August 2, 2007      (File No. 0-02612), which exhibit is incorporated herein by      reference.                                                                                                      |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.4   |   | Credit      Agreement, dated December 30, 2002, between Lufkin Industries, Inc.,      JPMorgan Chase Bank and the lenders party thereto, included as Exhibit      10.1 to the Company’s quarterly report on Form 10-Q of the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.       |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.5   |   | Agreement      and First Amendment to Credit Agreement, dated June 30, 2004, between      Lufkin Industries, Inc. and JPMorgan Chase Bank, included as Exhibit 10.2      to the Company’s quarterly report on Form 10-Q of the registrant filed May      9, 2005 (File No. 0-02612), which exhibit is incorporated herein by      reference.     |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.6   |   | Agreement      and Second Amendment to Credit Agreement, dated February 1, 2005, between      Lufkin Industries, Inc. and JPMorgan Chase Bank, included as Exhibit to      the Company’s quarterly report on 10.3 Form 10-Q of the registrant filed      May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein by      reference. |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.7   |   | Agreement      and Third Amendment to Credit Agreement between Lufkin Industries, Inc. and      JPMorgan Chase Bank, National Association, included as Exhibit 10.3      to the Company’s current report on Form 8-K of the registrant filed      February 21, 2006 (File No. 0-02612), which exhibit is incorporated herein      by reference.  |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.8   |   | Agreement      and Fourth Amendment to Credit Agreement between Lufkin Industries, Inc. and      JPMorgan Chase Bank, National Association, included as Exhibit 10.1      to the Company’s current report on Form 8-K of the registrant filed      November 30, 2007 (File No. 0-02612), which exhibit is incorporated herein      by reference. |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.9  |   | Form      of General Stock Option Agreement for the Company’s 1990 Stock Option      Plan, included as Exhibit 10.4 to the Company’s quarterly report on Form      10-Q of the registrant filed May 9, 2005 (File No. 0-02612), which exhibit      is incorporated herein by reference.                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.10 |   | Form      of Stock Option Agreement with Chief Executive Officer for the Company’s      1990 Stock Option Plan, included as Exhibit 10.5 to the Company’s      quarterly report on Form 10-Q of the registrant filed May 9, 2005 (File      No. 0-02612), which exhibit is incorporated herein by      reference.                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.11 |   | Form      of Stock Option Agreement for the Company’s 1996 Nonemployee Director      Stock Option Plan, included as Exhibit 10.6 to the Company’s quarterly      report on Form 10-Q of the registrant filed May 9, 2005 (File No.      0-02612), which exhibit is incorporated herein by    reference.                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.12 |   | Form      of General Stock Option Agreement for the Company’s 2000 Incentive Stock      Compensation Plan, included as Exhibit 10.7 to the Company’s quarterly      report on Form 10-Q of the registrant filed May 9, 2005 (File No.      0-02612), which exhibit is incorporated herein by    reference.                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.13 |   | Form      of Stock Option Agreement with Chief Executive Officer for the 2000      Incentive Stock Compensation Plan, included as Exhibit 10.8 to the      Company’s quarterly report on Form 10-Q of the registrant filed May 9,      2005 (File No. 0-02612), which exhibit is incorporated herein by      reference.                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.14 |   | Thrift      Plan Restoration Plan for Salaried Employees of Lufkin Industries, Inc.,      as amended, included as exhibit 10.13 to the Company's annual report on      Form 10-K of the registrant filed March 1, 2007 (File No. 0-02612), which      exhibit is incorporated herein by reference.                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.15 |   | Retirement Plan      Restoration Plan for Salaried Employees of Lufkin Industries, Inc,      as amended, included as exhibit 10.14 to the Company's annual report on      Form 10-K of the registrant filed March 1, 2007 (File No. 0-02612), which      exhibit is incorporated herein by reference.                                                  |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.16 |   | Lufkin Industries,      Inc. Supplemental Retirement Plan, as amended, as amended, included      as exhibit 10.15 to the Company's annual report on Form 10-K of the      registrant filed March 1, 2007 (File No. 0-02612), which exhibit is      incorporated herein by reference.                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.17 |   | Lufkin      Industries, Inc. 2008 Variable Compensation Plan, included as Exhibit 10.1      to Form 8-K filed February 19, 2008 (File No. 0-02612),      which exhibit is incorporated herein by  reference.                                                                                                                                           |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.18 |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      Larry M. Hoes,      included as Exhibit 10.13 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.19 |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      John F. Glick,      included as Exhibit 10.14 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.20 |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      Scott H. Semlinger, included as      Exhibit 10.15 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.21 |   | Severance      Agreement, dated May 3, 2000, between Lufkin Industries, Inc. and Robert      D. Leslie,      included as Exhibit 10.16 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                                  |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.22 |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      Paul G. Perez,      included as Exhibit 10.17 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.23 |   | Amended      and Restated Employment Agreement, dated January 1, 1999, between Lufkin      Industries, Inc. and Douglas V. Smith, included as exhibit 10.22 to the      Company's annual report on Form 10-K of the registrant filed March 1, 2007      (File No. 0-02612), which exhibit is incorporated herein by      reference.                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.24 |   | Severance      Agreement, dated January 16, 1993, between Lufkin Industries, Inc. and      Douglas V. Smith, included as Exhibit 10.23 to the Company's annual report      on Form 10-K of the registrant filed March 16, 2006 (File No. 0-02612),      which exhibit is incorporated herein by reference.                                             |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.25 |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Larry M. Hoes (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.26 |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and John F. Glick (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.27 |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Scott H. Semlinger (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.28 |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Paul G. Perez (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.29 |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Robert D. Leslie (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 21     |   | Subsidiaries      of the registrant                                                                                                                                                                                                                                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 23     |   | Consent      of Independent Registered Public Accounting Firm                                                                                                                                                                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 31.1   |   | Rule      13a-14(a)/15d-14(a) Certification of the Chief Executive      Officer                                                                                                                                                                                                                                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 31.2   |   | Rule      13a-14(a)/15d-14(a) Certification of the Chief Financial      Officer                                                                                                                                                                                                                                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 32.1   |   | Section      1350 Certification of the Chief Executive Officer      certification                                                                                                                                                                                                                                                                      |
|   |   |                                                                                                                                                                                                                                                                                                                                                   |
| 32.2   |   | Section      1350 Certification of the Chief Financial Officer      certification                                                                                                                                                                                                                                                                      |

|                                     |   |            |   |   | Additions       |   |   |            |   |   |       |   |
|------------------------------------------|--------|-----------------|--------|--------|-----------------|--------|--------|-----------------|--------|--------|------------|--------|
|                                     |   | Balance      at |   |   |            |   |   | Charged      to |   |   |       |   |   | Balance      at |   |
|                                     |   | Beginning       |   |   | Charged         |   |   | Other           |   |   |       |   |   | End      of |   |
| Description                              |   | of      Year    |   |   | to      Expense |   |   | Accounts        |   |   | Deductions |   |   | Year |   |
|                                     |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |
| Allowance      for Doubtful Receivables: |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |
|                                     |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |
| Year      Ended December 31, 2007        |   | $               | 687    |   |            |   | (107   | )               |   |   | -          |   |   |   | 68 |   |   | $ | 512 |   |
| Year      Ended December 31, 2006        |   |            | 759    |   |            |   | (206   | )               |   |   | -          |   |   |   | (134 | ) |   |   | 687 |   |
| Year      Ended December 31, 2005        |   | $               | 176    |   |            |   | 510    |            |   |   | -          |   |   |   | (73 | ) |   | $ | 759 |   |
|                                     |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |   |   |   |   |   |
| Inventory:      Valuation Reserves:      |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |   |   |   |   |   |
|                                     |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |   |   |   |   |   |
| Year      Ended December 31, 2007        |   | $               | 2,244  |   |            |   | 446    |            |   |   | -          |   |   |   | 797 |   |   | $ | 1,893 |   |
| Year      Ended December 31, 2006        |   |            | 1,171  |   |            |   | 1,466  |            |   |   | -          |   |   |   | 393 |   |   |   | 2,244 |   |
| Year      Ended December 31, 2005        |   | $               | 1,151  |   |            |   | 207    |            |   |   | -          |   |   |   | 187 |   |   | $ | 1,171 |   |
|                                     |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |   |   |   |   |   |
| Inventory:      LIFO Reserves:           |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |   |   |   |   |   |
|                                     |   |            |   |   |            |   |   |            |   |   |       |   |   |   |   |   |   |   |   |   |
| Year      Ended December 31, 2007        |   | $               | 28,888 |   |            |   | 1,222  |            |   |   | -          |   |   |   | - |   |   | $ | 30,110 |   |
| Year      Ended December 31, 2006        |   |            | 24,544 |   |            |   | 4,344  |            |   |   | -          |   |   |   | - |   |   |   | 28,888 |   |
| Year      Ended December 31, 2005        |   | $               | 20,985 |   |            |   | 3,559  |            |   |   | -          |   |   |   | - |   |   | $ | 24,544 |   |

| BY     | /s/      R. D. Leslie                                 |   |
|--------|-------------------------------------------------------|--------|
|   | R.      D. Leslie                                     |
|   | Signing      on behalf of the registrant and as       |
|   | Vice      President/Treasurer/Chief Financial Officer |
|   | (Principal      Financial and Accounting Officer)     |

|   | Name                          | Title                                                 | Date                   |
|--------|-------------------------------|-------------------------------------------------------|------------------------|
|   |                          |                                                  |                   |
| By     | /s/      D. V. Smith     | Chief      Executive Officer                          | February      29, 2008 |
|   | D.      V. Smith              | (Principal      Executive Officer)                    |                   |
| By     | /s/      R. D. Leslie    | Vice      President/Treasurer/Chief Financial Officer | February      29, 2008 |
|   | R.      D. Leslie             | (Principal      Financial and Accounting Officer)     |                   |
| By     | /s/      J. F. Glick     | Director                                              | February      29, 2008 |
|   | J.      F. Glick              | (President)                                           |                   |
| By     | /s/      J. F. Anderson  | Director                                              | February      29, 2008 |
|   | J.F.      Anderson            |                                                  |                   |
| By     | /s/      S. V. Baer           | Director                                              | February      29, 2008 |
|   | S.      V. Baer               |                                                  |                   |
| By     | /s/      S. W. Henderson, III | Director                                              | February      29, 2008 |
|   | S.      W. Henderson, III     |                                                  |                   |
| By     | /s/      J. T. Jongebloed     | Director                                              | February      29, 2008 |
|   | J.      T. Jongebloed         |                                                  |                   |
| By     | /s/      J. H. Lollar         | Director                                              | February      29, 2008 |
|   | J.      H. Lollar             |                                                  |                   |
| By     | /s/      B. H. O’Neal   | Director                                              | February      29, 2008 |
|   | B.      H. O'Neal             |                                                  |                   |
| By     | /s/      H. J. Trout, Jr.     | Director                                              | February      29, 2008 |
|   | H.      J. Trout, Jr.         |                                                  |                   |
| By     | /s/      T. E. Wiener         | Director                                              | February      29, 2008 |
|   | T.      E. Wiener             |                                                  |                   |

| Exhibit      Number |   | Description                                                                                                                                                                                                                                                                                                                                            |
|---------------------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 3.1                 |   | Fourth      Restated Articles of Incorporation, as amended, included as Exhibit 4.1 to      Lufkin Industries, Inc.’s (the “Company”) registration statement on Form      S-8 filed February 17, 2004 (File No. 333-112890), which exhibit is      incorporated herein by reference.                                                 |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 3.2                 |   | Articles      of Amendment to Fourth Restated Articles of Incorporation, included as      Exhibit 3.1 to the Company’s current report on Form 8-K of the registrant      filed December 10, 1999, which exhibit is incorporated herein by      reference.                                                                                        |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 3.3                 |   | Amended      and Restated Bylaws, included as Exhibit 3.1 to the Company’s current      report on Form 8-K of the registrant filed October 9, 2007 (File No.      0-02612), which exhibit is incorporated herein by    reference.                                                                                                                |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 4.1                 |   | Form      of Common Stock Certificate, included as Exhibit 4.1 to the Company’s      quarterly report on Form 10-Q of the registrant filed May 9, 2005 (File      No. 0-02612), which exhibit is incorporated herein by      reference.                                                                                                          |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.1               |   | 1990      Stock Option Plan, included as Exhibit 4.3 to the Company's registration      statement on Form S-8 dated August 23, 1995 (File No. 33-62021), which      plan is incorporated herein by reference.                                                                                                                                          |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.2               |   | 1996      Nonemployee Director Stock Option Plan, included as Exhibit 4.3 to the      Company's registration statement on Form S-8 dated June 28, 1996 (File No.      333-07129), which plan is incorporated herein by  reference.                                                                                                                     |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.3               |   | Amended      and Restated Incentive Stock Compensation Plan 2000, included as Exhibit      10.1 to the Company's current report on Form 8-K dated August 2, 2007      (File No. 0-02612), which exhibit is incorporated herein by      reference.                                                                                                      |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.4                |   | Credit      Agreement, dated December 30, 2002, between Lufkin Industries, Inc.,      JPMorgan Chase Bank and the lenders party thereto, included as Exhibit      10.1 to the Company’s quarterly report on Form 10-Q of the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.       |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.5                |   | Agreement      and First Amendment to Credit Agreement, dated June 30, 2004, between      Lufkin Industries, Inc. and JPMorgan Chase Bank, included as Exhibit 10.2      to the Company’s quarterly report on Form 10-Q of the registrant filed May      9, 2005 (File No. 0-02612), which exhibit is incorporated herein by      reference.     |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.6                |   | Agreement      and Second Amendment to Credit Agreement, dated February 1, 2005, between      Lufkin Industries, Inc. and JPMorgan Chase Bank, included as Exhibit to      the Company’s quarterly report on 10.3 Form 10-Q of the registrant filed      May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein by      reference. |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.7                |   | Agreement      and Third Amendment to Credit Agreement between Lufkin Industries, Inc. and      JPMorgan Chase Bank, National Association, included as Exhibit 10.3      to the Company’s current report on Form 8-K of the registrant filed      February 21, 2006 (File No. 0-02612), which exhibit is incorporated herein      by reference.  |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| 10.8                |   | Agreement      and Fourth Amendment to Credit Agreement between Lufkin Industries, Inc. and      JPMorgan Chase Bank, National Association, included as Exhibit 10.1      to the Company’s current report on Form 8-K of the registrant filed      November 30, 2007 (File No. 0-02612), which exhibit is incorporated herein      by reference. |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.9               |   | Form      of General Stock Option Agreement for the Company’s 1990 Stock Option      Plan, included as Exhibit 10.4 to the Company’s quarterly report on Form      10-Q of the registrant filed May 9, 2005 (File No. 0-02612), which exhibit      is incorporated herein by reference.                                                    |
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| *10.10              |   | Form      of Stock Option Agreement with Chief Executive Officer for the Company’s      1990 Stock Option Plan, included as Exhibit 10.5 to the Company’s      quarterly report on Form 10-Q of the registrant filed May 9, 2005 (File      No. 0-02612), which exhibit is incorporated herein by      reference.                          |
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| *10.11              |   | Form      of Stock Option Agreement for the Company’s 1996 Nonemployee Director      Stock Option Plan, included as Exhibit 10.6 to the Company’s quarterly      report on Form 10-Q of the registrant filed May 9, 2005 (File No.      0-02612), which exhibit is incorporated herein by    reference.                                    |
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| *10.12              |   | Form      of General Stock Option Agreement for the Company’s 2000 Incentive Stock      Compensation Plan, included as Exhibit 10.7 to the Company’s quarterly      report on Form 10-Q of the registrant filed May 9, 2005 (File No.      0-02612), which exhibit is incorporated herein by    reference.                                 |
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| *10.13              |   | Form      of Stock Option Agreement with Chief Executive Officer for the 2000      Incentive Stock Compensation Plan, included as Exhibit 10.8 to the      Company’s quarterly report on Form 10-Q of the registrant filed May 9,      2005 (File No. 0-02612), which exhibit is incorporated herein by      reference.                          |
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| *10.14              |   | Thrift      Plan Restoration Plan for Salaried Employees of Lufkin Industries, Inc.,      as amended, included as exhibit 10.13 to the Company's annual report on      Form 10-K of the registrant filed March 1, 2007 (File No. 0-02612), which      exhibit is incorporated herein by reference.                                                     |
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| *10.15              |   | Retirement Plan      Restoration Plan for Salaried Employees of Lufkin Industries, Inc,      as amended, included as exhibit 10.14 to the Company's annual report on      Form 10-K of the registrant filed March 1, 2007 (File No. 0-02612), which      exhibit is incorporated herein by reference.                                                  |
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| *10.16              |   | Lufkin Industries,      Inc. Supplemental Retirement Plan, as amended, as amended, included      as exhibit 10.15 to the Company's annual report on Form 10-K of the      registrant filed March 1, 2007 (File No. 0-02612), which exhibit is      incorporated herein by reference.                                                                   |
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| *10.17              |   | Lufkin      Industries, Inc. 2008 Variable Compensation Plan, included as Exhibit 10.1      to Form 8-K filed February 19, 2008 (File No. 0-02612),      which exhibit is incorporated herein by  reference.                                                                                                                                           |
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| *10.18              |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      Larry M. Hoes,      included as Exhibit 10.13 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                               |
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| *10.19              |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      John F. Glick,      included as Exhibit 10.14 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                               |
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| *10.20              |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      Scott H. Semlinger, included as      Exhibit 10.15 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                          |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.21              |   | Severance      Agreement, dated May 3, 2000, between Lufkin Industries, Inc. and Robert      D. Leslie,      included as Exhibit 10.16 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                                  |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.22              |   | Severance      Agreement, dated November 11, 1999, between Lufkin Industries, Inc. and      Paul G. Perez,      included as Exhibit 10.17 to the Company’s quarterly report on Form 10-Q of      the registrant      filed May 9, 2005 (File No. 0-02612), which exhibit is incorporated herein      by reference.                               |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.23              |   | Amended      and Restated Employment Agreement, dated January 1, 1999, between Lufkin      Industries, Inc. and Douglas V. Smith, included as exhibit 10.22 to the      Company's annual report on Form 10-K of the registrant filed March 1, 2007      (File No. 0-02612), which exhibit is incorporated herein by      reference.                    |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.24              |   | Severance      Agreement, dated January 16, 1993, between Lufkin Industries, Inc. and      Douglas V. Smith, included as Exhibit 10.23 to the Company's annual report      on Form 10-K of the registrant filed March 16, 2006 (File No. 0-02612),      which exhibit is incorporated herein by reference.                                             |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.25              |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Larry M. Hoes (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                   |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.26              |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and John F. Glick (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                   |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.27              |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Scott H. Semlinger (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                              |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.28              |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Paul G. Perez (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                   |
|                |   |                                                                                                                                                                                                                                                                                                                                                   |
| *10.29              |   | Employment      Agreement, dated as of August 18, 2006, by and between Lufkin Industries,      Inc. and Robert D. Leslie (incorporated by reference to Exhibit 10.1 to      Lufkin Industries, Inc.’s Form 8-K (File No. 0-02612) filed on August 24,      2006).                                                                                |
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| 21                  |   | Subsidiaries      of the registrant                                                                                                                                                                                                                                                                                                                    |
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| 23                  |   | Consent      of Independent Registered Public Accounting Firm                                                                                                                                                                                                                                                                                          |
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| 31.1                |   | Rule      13a-14(a)/15d-14(a) Certification of the Chief Executive      Officer                                                                                                                                                                                                                                                                        |
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| 31.2                |   | Rule      13a-14(a)/15d-14(a) Certification of the Chief Financial      Officer                                                                                                                                                                                                                                                                        |
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| 32.1                |   | Section      1350 Certification of the Chief Executive Officer      certification                                                                                                                                                                                                                                                                      |
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| 32.2                |   | Section      1350 Certification of the Chief Financial Officer      certification                                                                                                                                                                                                                                                                      |