8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant To Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 29, 2008

NiSource Inc.

(Exact name of registrant as specified in its charter)

Commission file number 001-16189

Delaware	35-2108964
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

801 East 86th Avenue Merrillville, Indiana	46410
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code (877) 647-5990

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions.

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2 (b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4 (c))

ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

On February 29, 2008, NiSource Inc. (the “Company”) issued a press release with respect to the Company’s previously released unaudited 2007 earnings. The Company’s press release, dated February 29, 2008, is attached as Exhibit 99.1.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits

Exhibit
Number	Description
99.1	Press release issued on February 29, 2008.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		NiSource Inc.
		(Registrant)
Date: February 29, 2008	By:	/s/ Jeffrey W. Grossman           Jeffrey W. Grossman
		Vice President and Controller

EXHIBIT INDEX

Exhibit
Number	Description
99.1	Press release issued on February 29, 2008

EX-99.1

Exhibit 99.1

801 E. 86th Avenue
Merrillville, IN 46410

FOR IMMEDIATE RELEASE
February 29, 2008

FOR ADDITIONAL INFORMATION
Media	Investors
Tom Cuddy	Randy Hulen
Director, Communications	Director, Investor Relations
(219) 647-5581	(219) 647-5688
tcuddy@nisource.com	rghulen@nisource.com

NiSource Announces Form 10-K Filing to be Delayed

MERRILLVILLE, Ind. — NiSource Inc. (NYSE: NI) announced today that it will be revising its previously released unaudited 2007 earnings as a result of changes in its unbilled electric revenue estimates at its Northern Indiana Public Service Company (NIPSCO) subsidiary dating back a number of years. Consequently, the company is filing a Form 12b-25 with the Securities and Exchange Commission, which extends the due date for its Form 10-K filing.

NiSource emphasized that the revenue estimates in question were never billed to its customers and that there would be no impact on customers as a result of the correction. The company estimates that the previously released electric net revenues were overstated by a cumulative total of $15-$20 million over a period of years, primarily since 2002. The company indicated that it has addressed the estimating process which resulted in the overstated revenue estimates and does not expect there to be a meaningful impact on future revenues or earnings.

The revision will result in a slight delay in the filing of NiSource’s Form 10-K for the year ended December 31, 2007. The company currently expects that it will file its 2007 Form 10-K on or before March 14, 2008.