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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
107263	Williams Companies Inc	WMB	Natural Gas Transmission (4922)	730569878

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1333810	T Ted Timmermans	One Williams Center Tulsa OK 74172	Vice President And Controller	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-02-26	4,119	$21.54	15,356	No	4	M	Direct
Common Stock	Disposition	2010-02-26	1,505	$21.54	13,851	No	4	F	Direct
Common Stock	Disposition	2010-03-01	1,800	$21.74	12,051	No	4	S	Direct
Common Stock	Disposition	2010-03-01	800	$21.75	11,251	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	F	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Units	Disposition	2010-02-26	4,119	$0.00	4,119	$0.00
Common Stock	Restricted Stock Units	Disposition	2010-02-26	5,492	$0.00	5,492	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
44,207	2010-02-26	2010-02-26	No	4	M	Direct
38,715	2010-02-26	2010-02-26	No	4	J	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	13,015	Indirect	By employee stock plan

Footnotes

Payout of Restricted Stock Units, in a transaction exempt under Rules 16b-3(d) and 16b-6(b), of shares of common stock awarded under The Williams Companies, Inc. 2007 Incentive Plan of which a portion of the shares were withheld for taxes.
Represents total shares of the Company's common stock held in The Investment Plus Plan.
The performance-based Restricted Stock Units grant was cancelled since vesting was subject to the applicable grant agreement and compensation committee certification that the Company met the three year performance measure. The specific performance measure was based on a improvement in the Company's Economic Value Added over the three year period and such measure was not met.