WILLIAMS COMPANIES, INC.

• Revenues·FY 2009

  Major restatement

  $5.3B▼ 36.1%

  was$8.3B

  Revised down in a 10-K/A. Any P/S built on the original was 56.4% too low.

  Non-reliance notice

  As reported · Feb 26, 201010-K/A · May 1, 2012us-gaap:RevenuesReport

  Evidence

• Income (Loss) from Continuing Operations before Income Taxes, Foreign·FY 2009

  Major restatement

  -$48M▼ 33.3%

  was-$36M

  Revised down in a 10-K/A.

  Non-reliance notice

  As reported · Feb 25, 201110-K/A · May 1, 2012us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeignReport

  Evidence

• Revenues·FY 2010

  Major restatement

  $6.6B▼ 31.0%

  was$9.6B

  Revised down in a 10-K. Any P/S built on the original was 44.9% too low.

  Non-reliance notice

  As reported · Feb 25, 201110-K · Feb 27, 2013us-gaap:RevenuesReport

  Evidence

• Stockholders' Equity Attributable to Parent·As of Dec 31, 2011

  Major restatement

  $1.3B▼ 27.7%

  was$1.8B

  Revised down in a 10-K.

  Non-reliance notice

  As reported · Feb 28, 201210-K · Feb 27, 2013us-gaap:StockholdersEquityReport

  Evidence

• Revenues·Q1 2011

  Major restatement

  $1.9B▼ 27.3%

  was$2.6B

  Revised down in a 10-Q. Any P/S built on the original was 37.6% too low.

  Non-reliance notice

  As reported · May 5, 201110-Q · May 1, 2012us-gaap:RevenuesReport

  Evidence

• Revenues·Q3 2011

  Major restatement

  $2B▼ 27.0%

  was$2.7B

  Revised down in a 10-Q. Any P/S built on the original was 37.1% too low.

  Non-reliance notice

  As reported · Nov 2, 201110-Q · Oct 31, 2012us-gaap:RevenuesReport

  Evidence

Restatements are detected by comparing every vintage of a fact across all of WILLIAMS COMPANIES, INC.'s filings back to 1993. A revision is not by itself a sign of wrongdoing — companies re-file for many legitimate reasons. This list is not exhaustive: it shows WMB's most significant revisions, and a figure absent from it has not been certified as unrevised.