June 9, 2009 Drury Capital Inc. c/o Drury Capital Services 47 Hulfish Street — Suite 340 Princeton, NJ 08542 Attention: Mr. Bernard Drury Re: Management Agreement Renewal Dear Mr. Drury:

Exhibit 10.5(a)

June 9, 2009

Xxxxx Capital Inc.
x/x Xxxxx Xxxxxxx Xxxxxxxx
00 Xxxxxxx Xxxxxx — Xxxxx 000
Xxxxxxxxx, XX 00000

Attention: Xx. Xxxxxxx Xxxxx

     Re: Management Agreement Renewal

Dear Xx. Xxxxx:

We are writing with respect to your management agreements concerning the commodity pool to which reference is made below (the “Management Agreement”). We are extending the term of the Management Agreement through June 30, 2010 and all other provisions of the Management Agreement will remain unchanged.

	•		Citigroup Diversified Futures Fund L.P.
	•		CMF Xxxxx Master Fund
	•		CMF Institutional Futures Portfolio L.P.

Please acknowledge receipt of this modification by signing one copy of this letter and returning it to the attention of Xx. Xxxxxxxx Xxxxx at the address above or fax to 000-000-0000. If you have any questions I can be reached at 000-000-0000.

Very truly yours,

CITIGROUP MANAGED FUTURES LLC

By:		/s/ Xxxxxxxx Xxxxx
		Xxxxxxxx Xxxxx
		Chief Financial Officer & Director
XXXXX CAPITAL INC.
By:		/s/ Xxxxxxx X. Xxxxx
Print Name: Xxxxxxx X. Xxxxx

XX/sr