UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 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):   October 27, 2008

UNITED STATES OIL FUND, LP
(Exact name of registrant as specified in its charter)

Delaware
  
001-32834
  
20-2830691
(State or other jurisdiction
of incorporation)
  
(Commission File Number)
  
(I.R.S. Employer
Identification No.)
         
   
1320 Harbor Bay Parkway, Suite 145
Alameda, California 94502
    
 
  
(Address of principal executive offices) (Zip Code)
  
 
         
Registrant's telephone number,
including area code
  
(510) 522-3336
    

Not Applicable
(Former name or former address, if changed since last report)

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 communication 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 14d-2(b) 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 7.01. Regulation FD Disclosure.

On October 27, 2008, United States Oil Fund, LP (the “Registrant”) issued its monthly account statement for the month ended September 30, 2008, which is presented in the form of a Statement of Income (Loss) and a Statement of Changes in Net Asset Value, as required pursuant to Part 4.22 of the Commodity Futures Trading Commission rules. A copy of the monthly account statement is furnished as Exhibit 99.1 to this Current Report on Form 8-K and also can be found on the Registrant’s website at www.unitedstatesoilfund.com. The information furnished in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in any such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit 99.1 Monthly Account Statement of the Registrant for the month ended September 30, 2008.


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.
 
     
 
UNITED STATES OIL FUND, LP
By: United States Commodity Funds LLC, its general partner
 
 		  
 		  
 
Date: October 27, 2008 By:   /s/ Nicholas D. Gerber
 
Name: Nicholas D. Gerber
 
Title: President and Chief Executive Officer