WILLIAMS PIPELINE PARTNERS L.P.

Q: Jun 30 2010

Q: Mar 31 2010

FY: Dec 31 2009

Q: Sep 30 2009

Q: Jun 30 2009

Q: Mar 31 2009

FY: Dec 31 2008

Q: Sep 30 2008

Q: Jun 30 2008

Q: Mar 31 2008

FY: Dec 31 2007

Completion of Acquisition or Disposition of Assets

Results of Operations and Financial Condition

1.01,8.01,9.01

Results of Operations and Financial Condition

2.02,9.01

4.02,9.01

Results of Operations and Financial Condition

Other Events

2.02,9.01

5.02

5.02,9.01

2.02,9.01

2.02,9.01

Results of Operations and Financial Condition

5.02,7.01,9.01

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

Certification of termination of registration of a class of securities (Section 12(b))

Notice of Effectiveness

Notification of removal from listing and/or registration on a national securities exchange

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Notice of Effectiveness

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

AUSTIN H BRENT

BENDER JAMES J

House Emmitt C

CHAPPEL DONALD R

WILLIAMS COMPANIES INC

ZELKOWITZ STEVEN L

WRIGHT PHILLIP D

Timmermans Ted T

Sailor Rodney

MALCOLM STEVEN J

WILLIAMS COMPANIES INC

WILLIAMS COMPANIES INC

WILLIAMS COMPANIES INC

WILLIAMS COMPANIES INC

KAYNE ANDERSON CAPITAL ADVISORS LP

TORTOISE CAPITAL ADVISORS LLC

WILLIAMS COMPANIES INC

ZELKOWITZ STEVEN L

KAYNE ANDERSON CAPITAL ADVISORS LP

ZELKOWITZ STEVEN L

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

No description available

Correspondence with the SEC

Correspondence with the SEC

No description available

Letter from the SEC

Letter from the SEC

Correspondence with the SEC