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Filing Details

Accession Number:: 0001181431-10-058994
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-12-02 19:54:18
Reporting Period:: 2010-11-30

Filing Date:: 2010-12-02
Accepted Time:: 2010-12-02 19:54:18
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
916457	Calpine Corp	CPN	Electric Services (4911)	770212977

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1252464	H Edward Mcdermott	591 Redwood Highway , Suite 3215 Mill Valley CA 94941		No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-11-30	0	$0.00	0	No	4	P	Indirect	See Footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	See Footnotes

Footnotes

On November 30, 2010, Edward H. McDermott ("EHM") purchased one-third of the outstanding shares of SPO Advisory Corp. ("SPO Corp.") previously owned by William J. Patterson. William J. Patterson passed away on September 24, 2010. Following the transaction which caused this filing, 85,541,939 shares of the issuer's common stock are owned directly by SPO Partners II, L.P. ("SPO Partners"), and may be deemed to be indirectly beneficially owned by (i) SPO Advisory Partners, L.P. ("SPO Advisory"), the sole general partner of SPO Partners, (ii) SPO Corp., the sole general partner of SPO Advisory, and (iii) John H. Scully ("JHS"), William E. Oberndorf ("WEO") and EHM, the three controlling persons of SPO Corp.
Additionally, 5,150,500 shares are owned directly by SPO Partners II Co-Investment Partnership, L.P. ("SPO Co-Invest"), and may be deemed to be indirectly beneficially owned by (i) SPO Advisory, the sole general partner of SPO Co-Invest, (ii) SPO Corp., the sole general partner of SPO Advisory, and (iii) JHS, WEO and EHM, the three controlling persons of SPO Corp. Additionally, following the transaction causing this filing, 3,266,901 shares of the issuer's common stock are owned directly by San Francisco Partners, L.P. ("SF Partners"), and may be deemed to be indirectly beneficially owned by (i) SF Advisory Partners, L.P. ("SF Advisory"), the sole general partner of SF Partners, (ii) SPO Corp., the sole general partner of SF Advisory, and (iii) JHS, WEO and EHM, the three controlling persons of SPO Corp.
Additionally, following the transaction causing this filing, EHM beneficially owns 6,800 shares of the issuer's common stock held in the EHM individual retirement account, which is self-directed.