Document:

exv10w6wc

Exhibit 10.6(c)

June 1,
2010

Campbell & Company, Inc.

2850 Quarry Lake Drive

Baltimore, MD 21209

Attn: Ms. Theresa 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, 2011 and all other provisions of the Management Agreements
will remain unchanged.

	 	•	 	Potomac Futures Fund L.P.
	 
	 	•	 	Global Diversified 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/srexv10w1wb

Exhibit 10.1(b)

June 1, 2010

SandRidge Capital, L.P.

1300 Post Oak Blvd., Suite 325

Houston, Texas 77056

Attention: Mr. Andrew M. Rowe

          Re: Management Agreement Renewals

Dear Mr. Rowe:

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, 2011 and all other provisions of the Management Agreements will remain
unchanged.

	 	•	 	Bristol Energy Fund L.P.
	 
	 	•	 	CMF SandRidge Master Fund L.P.
	 
	 	•	 	Bohdan Mysko
	 
	 	•	 	CMF SandRidge Feeder (Cayman) Ltd.
	 
	 	•	 	UDC International
	 
	 	•	 	Energy Advisors Portfolio L.P.
	 
	 	•	 	Diversified 2000 Futures Fund L.P.
	 
	 	•	 	Tactical Diversified Futures fund L.P.
	 
	 	•	 	Diversified Multi-Advisor Futures Fund L.P.
	 
	 	•	 	Diversified Multi-Advisor Futures Fund L.P. II

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,

CERES MANAGED FUTURES LLC

	 	 	 	 	 

	By:

	 	 /s/ Jennifer
Magro

	 	 
	 

	 	 Jennifer
Magro

	 	 
	 

	 	Chief Financial Officer & Director	 	 
	 
	 	 	 	 
	SANDRIDGE CAPITAL, L.P.	 	 
	 
	By:
	 	/s/ Andrew M. Rowe	 	 
	 

	 	 

	 	 

	 	 	 	 	 

	Print Name:
	 	Andrew M. Rowe	 	 
	 

	 	 

	 	 
	JM/srexv10w2wb

Exhibit 10.2(b)

June
1, 2010

Winton Capital Management 

la. St. Mary Abbot’s Place

Kensington, London W86LS, 

U.K.

Attention: Mr. Martin Hunt

			
	      Re:	 	Management Agreement Renewals

Dear Mr. Hunt:

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, 2011 and all other provisions of the
Management Agreements will remain unchanged.

	 	•	 	Diversified Multi-Advisor Futures Fund L.P.
	 
	 	•	 	Orion Futures Fund L.P.
	 
	 	•	 	CMF Winton Feeder I LP
	 
	 	•	 	CMF Winton Master Fund L.P.
	 
	 	•	 	Tactical Diversified Futures Fund L.P.
	 
	 	•	 	Institutional Futures Portfolio LP
	 
	 	•	 	Abingdon Futures Fund L.P.
	 
	 	•	 	Global Futures Fund Ltd.
	 
	 	•	 	Orion Futures Fund (Cayman) Ltd.

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,

CERES MANAGED FUTURES LLC

 	 
	 	By:  	/s/ Jennifer Magro
 	 
	 	 	Jennifer Magro 	 
	 	 	Chief Financial Officer & Director 	 
	 

	 	 	 	 	 
	WINTON CAPITAL MANAGEMENT	 	 
	 
	 	 	 	 
	By: 
Print Name:
	 	/s/ Peter Jauhal
 

PETER JAUHAL
	 	 
	JM/sr

	 	DIRECTOR	 	 
	 

	 	WINTON CAPITAL MANAGEMENTexv10w1wb

Exhibit 10.1(b)

June 1, 2010

Altis Partners (Jersey) Limited

2 Hill Street

St Helier, Jersey

Channel Islands JE2 4UA

Attention: Mr. Stephen Hedgecock

			
	     Re:	 	Management Agreement Renewals

Dear Mr. Hedgecock:

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, 2011 and all other provisions of the Management Agreements will remain
unchanged.

	 	•	 	CTA Capital LLC
	 
	 	•	 	Global Diversified Futures Fund L.P.
	 
	 	•	 	Emerging CTA Portfolio L.P.
	 
	 	•	 	CMF Altis Partners Master Fund L.P.
	 
	 	•	 	Institutional Futures Portfolio L.P.
	 
	 	•	 	Global Futures Fund Ltd.

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 212-296-6868. If you have
any questions I can be reached at 212-296-1302.

Very truly yours,

	 	 	 	 	 
	CERES MANAGED FUTURES LLC

 	 	 
	By:  	/s/ Jennifer Magro	 	 
	 	Jennifer Magro 	 	 
	 	Chief Financial Officer and Director 	 	 
	 
	 
	ALTIS PARTNERS (JERSEY) LIMITED

 	 	 
	By:  	/s/
S. Hedgecock	 	 
	 	Print Name:  	S. Hedgecock	 	 
	 	JM/srexv10w2wb

Exhibit 10.2 (b)

June 1, 2010

Fall River Capital

11740 N. Port Washington Road

P.O. Box 40

Mequeon, WI 53092

Attention: Mr. Charlie Wright

			
	      Re:	 	Management Agreement Renewals

Dear Mr. Wright:

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, 2011 and all other provisions of the Management Agreements will remain
unchanged.

	 	•	 	CTA Capital LLC
	 
	 	•	 	Emerging CTA Portfolio 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,

CERES MANAGED FUTURES LLC

	 	 	 	 	 

	By:

	 	/s/ Jennifer Magro
 

Jennifer Magro
	 	 
	 

	 	Chief Financial Officer & Director	 	 

FALL RIVER CAPITAL

	 	 	 	 	 

	By:

	 	/s/ Robert Friedl
 

	 	 
	Print Name:

	 	Robert Friedl	 	 

JM/srexv10w3wb

			
	June 1, 2010
	 	Exhibit 10.3 (b)

Waypoint Capital Management

23 Green St. — Suite 210

Huntington, N.Y. 11743

Attention: Mr. Robert Calabretta

     Re:       Management Agreement Renewals

Dear Mr. Calabretta:

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, 2011 and all other provisions of the Management Agreements will remain
unchanged.

	 	•	 	CTA Capital LLC
	 
	 	•	 	Emerging CTA Portfolio L.P.
	 
	 	•	 	Global Diversified Futures Fund L.P.
	 
	 	•	 	Waypoint Master Fund L.P.
	 
	 	•	 	Diversified 2000 Futures 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,

CERES MANAGED FUTURES LLC

	 	 	 	 	 

	By:

	 	/s/ Jennifer Magro
 

Jennifer Magro
	 	 
	 

	 	Chief Financial Officer & Director	 	 

WAYPOINT CAPITAL MANAGEMENT

	 	 	 	 	 

	By: 

Print Name:

	 	/s/ Robert E. Calabretta
 

Robert E. Calabretta
	 	 
	
JM/srexv10w4wb

			
	June 1, 2010
	 	Exhibit 10.4 (b)

Xplor Capital Management LLC

35 Mason Street

4th Floor

Greenwich, Ct. 06830

Attention: Mr. Damon Hart

     Re:       Management Agreement Renewals

Dear Mr. Hart:

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, 2011 and all other provisions of the Management Agreements will remain
unchanged.

	 	•	 	CTA Capital LLC
	 
	 	•	 	Emerging CTA Portfolio LP

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 212-793-1986. If you have any
questions I can be reached at 212-559-5046.

Very truly yours,

CERES MANAGED FUTURES LLC

	 	 	 	 	 

	By:

	 	/s/ Jennifer Magro
 

Jennifer Magro
	 	 
	 

	 	Chief Financial Officer & Director	 	 

XPLOR CAPITAL MANAGEMENT LLC

	 	 	 	 	 

	By: 

Print Name:

	 	/s/ Damon Hart
 

Damon Hart
	 	 

JM/srexv10w6wb

			
	June 1, 2010
	 	Exhibit 10.6 (b)

Cantab Capital Partners LLP

Daedalus House, Staton Rd.

Cambridge CB1 2RE

UK

Attention: Mr. Christopher Pugh

     Re:     Management Agreement Renewals

Dear Mr. Pugh:

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, 2011 and all other provisions of the Management Agreements will remain
unchanged.

	 	•	 	CTA Capital LLC
	 
	 	•	 	Emerging CTA Portfolio LP

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 212-793-1986. If you have any
questions I can be reached at 212-559-5046.

Very truly yours,

CERES MANAGED FUTURES LLC

	 	 	 	 	 

	By:

	 	/s/ Jennifer Magro
 

Jennifer Magro
	 	 
	 

	 	Chief Financial Officer & Director	 	 

CANTAB CAPITAL PARTNERS LLP

	 	 	 	 	 

	By: 

Print Name:

	 	/s/ Chris Pugh
 

Chris Pugh
	 	 

JM/sr

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