UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C.  20549
 
FORM 8-K
 
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
 
Date of Report (Date of earliest event reported):         July 14, 2010                                   
 
ALLIS-CHALMERS ENERGY INC.
(Exact name of registrant as specified in its charter)
 
Delaware
  
001-02199
  
39-0126090
(State or other jurisdiction of
incorporation or organization)
  
(Commission File
Number)
  
(I.R.S. Employer Identification
No.)
 
5075 Westheimer
Suite 890
Houston, Texas
  
77056
(Address of principal executive offices)
  
(Zip Code)

Registrant’s telephone number, including area code:  (713) 369-0550
 
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
 
¨
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 
 
 

Item 1.01.   Entry into a Material Definitive Agreement.
 
On July 14, 2010, Allis-Chalmers Energy Inc. (the “Company”) and Lime Rock Partners V, L.P. (“Lime Rock”) entered into a Fourth Amendment (the “Fourth Amendment”) to their Investment Agreement, dated May 20, 2009.  Pursuant to the Fourth Amendment, Lime Rock has agreed to designate their two remaining nominees to the Company’s board of directors by October 15, 2010.
 
The full text of the Fourth Amendment is attached as Exhibit 4.1 to this Current Report on Form 8-K and incorporated by reference herein.
 
Item 9.01
Financial Statements and Exhibits
 
 
(d)
Exhibits:
 
Exhibit
No.
  
Description
     
4.1
  
Fourth Amendment to Investment Agreement, dated July 14, 2010, between Allis-Chalmers Energy Inc. and Lime Rock Partners V, L.P.
 
SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 
 
ALLIS-CHALMERS ENERGY INC.
     
Date:  July 14, 2010
By:
 /s/ Theodore F. Pound III
 
Name:
Theodore F. Pound III
 
Title:
General Counsel and Secretary

 
 
 

EXHIBIT INDEX
 
Exhibit
No.
  
Description
     
4.1
  
Fourth Amendment to Investment Agreement, dated July 14, 2010, between Allis-Chalmers Energy Inc. and Lime Rock Partners V, L.P.