Free Writing Prospectus

Filed Pursuant to Rule 433
Registration No. 333-144222

North American Energy Partners Inc.

7,248,680 Shares

This free writing prospectus relates only to the securities described in, and should be read together with, the preliminary prospectus dated July 16, 2007 (the “Preliminary Prospectus”) included in Amendment No. 1 to the Registration Statement on Form F-1 (Commission File No. 333-144222) relating to these securities. The following information supplements and updates the information contained in the Preliminary Prospectus.

 

Common shares offered by us    None
Common shares offered by the selling shareholders   

7,248,680 shares (8,335,982 shares if the underwriters’

over-allotment option is fully exercised)

Underwriters’ over-allotment option    1,087,302 shares; option to purchase additional shares pro rata from the selling shareholders
Common shares to be outstanding after this offering    35,752,060 shares
Common shares to be owned by the selling shareholders after this offering   

8,284,098 shares (7,196,796 shares if the underwriters’

over-allotment option is fully exercised)

The following table presents information regarding the beneficial ownership of our common shares based on the information available to us as of July 30, 2007, by each of the selling shareholders:

 

    


Common Shares
Beneficially Owned
Prior to the Offering		   


Common
Shares
Offered Hereby		   


Common Shares
Beneficially Owned
After the Offering		    Common Shares
Beneficially Owned
After the Offering
Assuming Full Exercise
of Over-Allotment
Option

Name of Selling Shareholder

    Number    %    Number    Number    %    Number    %

Sterling Group

Partners I, L.P.

    6,351,265    17.76    1,500,000    4,851,265    13.57    4,626,265    12.94

Genstar Capital

Partners III, L.P.

    4,439,233    12.42    3,860,203    579,030    1.62    –    –

Stargen III, L.P.

    159,249    Less than
1%		    138,477    20,772    Less than
1%		    –    –

Stephens-NACG LLC

    3,065,409    8.57    450,000    2,615,409    7.32    2,547,909    7.13

Paribas North

America, Inc.

    1,517,622    4.24    1,300,000    217,622    Less than
1%		    22,622    Less than
1%

Because there will be no new shares issued by us there would be no adjustments to the actual March 31, 2007 capitalization.

The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by contacting Credit Suisse Securities (USA) LLC, 11 Madison Avenue, New York, New York 10010, Attention: Prospectus Department or UBS Investment Bank, 299 Park Avenue, New York, New York 10171, Attention: Equity Syndicate or by telephone at (212) 713-2626. The latest prospectus is also available at the following link:

http://www.sec.gov/Archives/edgar/data/1368519/000119312507166114/0001193125-07-166114-index.htm.