June 30, 2006 SandRidge Capital, Inc.

Exhibit 10.5

Citigroup Managed Futures LLC
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Fax ▇▇▇ ▇▇▇ ▇▇▇▇

June 30, 2006

▇▇▇▇▇▇▇▇▇ Capital, Inc.

▇▇▇▇ ▇▇▇▇ ▇▇▇ ▇▇▇▇., ▇▇▇▇▇ ▇▇▇

Houston, Texas 77056

Attention: ▇▇. ▇▇▇▇▇▇ ▇. ▇▇▇▇

Re: Management Agreement Renewals

Dear ▇▇. ▇▇▇▇:

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, 2007 and all other provisions of the Management Agreements will remain unchanged.

• SB Bristol Energy Fund LP

• CMF ▇▇▇▇▇▇▇▇▇ Master Fund LP

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

Very truly yours,
CITIGROUP MANAGED FUTURES LLC
By:	/s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇, ▇▇.
	▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇, ▇▇.
	Chief Financial Officer & Director

By: 
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Print Name:
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DRMcA/sr