Exhibit 10.15

June 5, 2008

Campbell & Company, Inc.
Court Tower Building
210 West Pennsylvania Avenue
Suite 770
Towson, MD 21204

Attn: Ms. Terry Becks

     Re: Management Agreement Renewals

Dear Ms. Becks:

We are writing with respect to your management agreements concerning the commodity pools to which reference is made below (the ‘‘Management Agreements’’). We are extending the term of the Management Agreements through June 30, 2009 and all other provisions of the Management Agreements will remain unchanged.

• Smith Barney Potomac Futures Fund L.P.

• Smith Barney Diversified Futures Fund L.P.

• Smith Barney Diversified Futures Fund L.P. II

• Smith Barney Global Diversified Futures Fund L.P.

• Salomon Smith Barney Diversified 2000 Futures Fund L.P.

• CMF Campbell Master Fund L.P.

Please acknowledge receipt of this modification by signing one copy of this letter and returning it to the attention of Ms. Jennifer Magro at the address above or fax to 212-793-1986. If you have any questions I can be reached at 212-559-5046.

Very truly yours,
CITIGROUP MANAGED FUTURES LLC
By: /s/ Jennifer Magro
	Jennifer Magro
	Chief Financial Officer & Director
CAMPBELL & COMPANY, INC.
By: /s/ Thomas P. Lloyd
Print Name: Thomas P. Lloyd

JM/sr