April 17, 2019

VIA EDGAR SUBMISSION

U.S. Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Attention: John Reynolds

Re:	NuStar Energy L.P.
	Registration Statement on Form S-3
	Initially Filed on April 12, 2019
	File No. 333-230823
	Request for Acceleration

Dear Mr. Reynolds:

Pursuant to Rule 461 promulgated under the Securities Act of 1933, as amended, NuStar Energy L.P., a Delaware limited partnership (the “Partnership”), hereby requests that the effective date of its Registration Statement on Form S-3 (File No. 333-230823) (the “Registration Statement”) be accelerated and that the Registration Statement be declared effective at 4:30 p.m., Washington, D.C. time, on April 19, 2019, or as soon thereafter as practicable.

If you have any questions regarding the foregoing request, please contact the undersigned at (210) 918-2512.

	Very truly yours,

	NUSTAR ENERGY L.P.

	By:	Riverwalk Logistics, L.P., its general partner

	By:	NuStar GP, LLC, its general partner

	By:	/s/ Amy L. Perry
		Amy L. Perry
		Executive Vice President—M&A, Strategic Direction and Investor Relations and Corporate Secretary

cc:	George J. Vlahakos, Sidley Austin LLP