February 25, 2019

VIA EDGAR

Ms. Erin Martin

Division of Corporation Finance

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

RE:	United States Oil Fund, LP
	Pre-Effective Amendment No. 1 to Registration Statement on Form S-3
	File No. 333-229210

Dear Ms. Martin:

In accordance with Rule 461 of the General Rules and Regulations under the Securities Act of 1933, as amended, United States Oil Fund, LP hereby respectfully requests that the above-captioned registration statement be ordered effective on February 27, 2019, at 9:00 a.m. ET, or as soon thereafter as practicable.

United States Oil Fund, LP
By: United States Commodity Funds LLC,
its General Partner
By:	/s/ Daphne G. Frydman
	Daphne G. Frydman
	General Counsel