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) May 29, 2012

Commission	Registrant; State of Incorporation;	I.R.S. Employer
File Number	Address; and Telephone Number	Identification No.
333-21011	FIRSTENERGY CORP.	34-1843785
	(An Ohio Corporation)
	76 South Main Street
	Akron, OH  44308
	Telephone (800)736-3402

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 (see General Instruction A.2.):

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

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

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

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

Item 7.01 Regulation FD

On May 29, 2012, FirstEnergy Corp. (FirstEnergy) will post unaudited financial information, for the three months ended March 31, 2012 and March 31, 2011, to its website at www.firstenergycorp.com/ir for the following subsidiaries that are not Securities and Exchange Commission registrants:

Metropolitan Edison Company

Pennsylvania Electric Company

The Cleveland Electric Illuminating Company

The Toledo Edison Company

FirstEnergy will continue to post the unaudited financial information for the following subsidiaries as it has done since July 2011:

Allegheny Energy Supply Company

Allegheny Generating Company

American Transmission Systems, Incorporated

Monongahela Power Company

Pennsylvania Power Company

The Potomac Edison Company

Trans-Allegheny Interstate Line Company

West Penn Power Company

The unaudited financial information that will be provided for the above referenced entities is intended to provide only a summary or overview of the financial positions of those entities as of the specified date. As this financial information is intended merely as a summary or overview, the footnote disclosure normally accompanying this type of financial information will not be included and the information provided should not be viewed as a complete presentation of the financial condition or results of operations for those entities.  FirstEnergy currently intends to post the above referenced unaudited financial information for these subsidiaries to its website approximately sixty days following the end of each of the first three fiscal quarters, and audited financial information including accompanying footnotes approximately ninety days following the end of each fiscal year.

SIGNATURE

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.

May 29, 2012

	FIRSTENERGY CORP.
	Registrant
By:		/s/ Harvey L. Wagner
		Harvey L. Wagner Vice President,  Controller and Chief Accounting Officer

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