Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following registration statements on Form S-3 and related prospectuses of The Williams Companies, Inc. and in the following registration statements on Form S-8 of our report dated February 27, 2012, except as it relates to the matter discussed under Basis of Presentation – Correction of error in Note 1, as to which the date is May 1, 2012, with respect to the consolidated financial statements and schedules of The Williams Companies, Inc., and our report dated February 27, 2012, except for the effects of the material weakness described in the sixth paragraph (of that report), as to which the date is May 1, 2012, with respect to the effectiveness of internal control over financial reporting of The Williams Companies, Inc., included in this Form 10-K/A Amendment No. 2:
| Form S-3: | ||
Registration Statement Nos. 333-29185, 333-106504 and 333-159559 | ||
| Form S-8: | ||
Registration Statement No. 333-03957 - The Williams Companies, Inc. 1996 Stock | ||
Plan for Non-Employee Directors | ||
Registration Statement No. 333-40721 - The Williams Companies, Inc. 1996 | ||
Stock Plan for Nonofficer Employees | ||
Registration Statement No. 333-51994 - The Williams Companies, Inc. 1996 | ||
Stock Plan for Nonofficer Employees | ||
Registration Statement No. 333-85542 - The Williams Investment Plus Plan | ||
Registration Statement No. 333-85546 - The Williams Companies, Inc. 2002 | ||
Incentive Plan | ||
Registration Statement No. 333-142985 - The Williams Companies, Inc. Employee | ||
Stock Purchase Plan and The Williams | ||
Companies, Inc. 2007 Incentive Plan | ||
Registration Statement No. 333-167123 - The Williams Companies, Inc. 2007 | ||
Incentive Plan | ||
/s/ Ernst & Young LLP
Tulsa, Oklahoma
May 1, 2012
