Commission File Number
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001-02199
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Allis-Chalmers Energy Inc.
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(Exact name of registrant as specified in its charter)
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10613 W Sam Houston Parkway, Suite 600, Houston, Texas, (713)856-4222
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(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)
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Common Stock, par value $0.01
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(Title of each class of securities covered by this Form)
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None
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(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)
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Rule 12g-4(a)(1)
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o
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Rule 12g-4(a)(2) | o | |
Rule 12h-3(b)(1)(i) | o | |
Rule 12h-3(b)(1)(ii) | o | |
Rule 15d-6 | þ |
Approximate number of holders of record as of the certification or notice date:
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One
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Date:
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February 21, 2012
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By:
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/s/ Max Bouthillette
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Max Bouthillette
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Senior Vice President, Secretary and General Counsel |