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 25, 2008

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 2.02 Results of Operations and Financial Condition

On February 25, 2008, FirstEnergy Corp. posted business segment financial results for the three months ended December 31, 2007 and 2006 to its Web site – www.firstenergycorp.com/ir.  The business segment financial results are attached as Exhibit 99.1 hereto and incorporated by reference.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

Exhibit No.	Description
99.1	FirstEnergy Corp. – Consolidated Income Segments

Forward-Looking Statements: This Form 8-K includes forward-looking statements based on information currently available to management. Such statements are subject to certain risks and uncertainties. These statements include declarations regarding management’s intents, beliefs and current expectations. These statements typically contain, but are not limited to, the terms “anticipate,” “potential,” “expect,” “believe,” “estimate” and similar words. Forward-looking statements involve estimates, assumptions, known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements to be materially different from any future results, performance or achievement expressed or implied by such forward-looking statements. Actual results may differ materially due to the speed and nature of increased competition in the electric utility industry and legislative and regulatory changes affecting how generation rates will be determined following the expiration of existing rate plans in Ohio and Pennsylvania, economic or weather conditions affecting future sales and margins, changes in markets for energy services, changing energy and commodity market prices, replacement power costs being higher than anticipated or inadequately hedged, the continued ability of FirstEnergy’s regulated utilities to collect transition and other charges or to recover increased transmission costs, maintenance costs being higher than anticipated, other legislative and regulatory changes including revised environmental requirements and possible GHG emission regulations, the uncertainty of the timing and amounts of the capital expenditures needed to, among other things, implement the Air Quality Compliance Plan (including that such amounts could be higher than anticipated) or levels of emission reductions related to the Consent Decree resolving the New Source Review litigation or other potential regulatory initiatives, adverse regulatory or legal decisions and outcomes (including, but not limited to, the revocation of necessary licenses or operating permits and oversight) by the NRC (including, but not limited to, the Demand for Information issued to FENOC on May 14, 2007) as disclosed in the registrant’s SEC filings, the timing and outcome of various proceedings before the PUCO (including, but not limited to, the distribution rate cases and the generation supply plan filing for the Ohio Companies and the successful resolution of the issues remanded to the PUCO by the Ohio Supreme Court regarding the RSP and RCP, including the deferral of fuel costs) and the PPUC (including the resolution of the Petitions for Review filed with the Commonwealth Court of Pennsylvania with respect to the transition rate plan for Met-Ed and Penelec), the continuing availability of generating units and their ability to operate at, or near full capacity, the changing market conditions that could affect the value of assets held in the registrant’s nuclear decommissioning trusts, pension trusts and other trust funds, the ability to comply with applicable state and federal reliability standards, the ability to accomplish or realize anticipated benefits from strategic goals (including employee workforce initiatives), the ability to improve electric commodity margins and to experience growth in the distribution business, the ability to access the public securities and other capital markets and the cost of such capital, the risks and other factors discussed from time to time in the registrant’s SEC filings, and other similar factors. The foregoing review of factors should not be construed as exhaustive. New factors emerge from time to time, and it is not possible to predict all such factors, nor assess the impact of any such factor on the registrant’s business or the extent to which any factor, or combination of factors, may cause results to differ materially from those contained in any forward-looking statements. Also, a security rating is not a recommendation to buy, sell or hold securities, and it may be subject to revision or withdrawal at any time and each such rating should be evaluated independently of any other rating. The registrant expressly disclaims any current intention to update any forward-looking statements contained herein as a result of new information, future events, or otherwise.

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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 thereunto authorized.

February 25, 2008

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

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EX-99.1

Exhibit 99.1

FirstEnergy Corp.

Consolidated Income Segments

 (In millions)

			Three Months Ended December 31, 2007
									Ohio
			Energy			Competitive			Transitional
			Delivery			Energy			Generation						Reconciling
			Services (a)			Services (b)			Services (c)			Other (d)			Adjustments			Consolidated
		Revenues
(1	)	Electric sales	$	1,921		$	343		$	617		$	-		$	-		$	2,881
(2	)	FE Facilities		-			-			-			-			-			-
(3	)	Other		150			36			11			10			(9	)		198
(4	)	Internal revenues		-			691			-			-			(691	)		-
(5	)	Total Revenues		2,071			1,070			628			10			(700	)		3,079
		Expenses
(6	)	Fuel		1			290			-			-			-			291
(7	)	Purchased power		899			186			528			-			(691	)		922
(8	)	Other operating expenses		445			321			87			5			(27	)		831
(9	)	FE Facilities		-			-			-			-			-			-
(10	)	Provision for depreciation		103			51			-			1			6			161
(11	)	Amortization of regulatory assets		226			-			8			-			-			234
(12	)	Deferral of new regulatory assets		(72	)		-			(53	)		-			-			(125	)
(13	)	General taxes		137			26			1			-			1			165
(14	)	Total Expenses		1,739			874			571			6			(711	)		2,479
(15	)	Operating Income		332			196			57			4			11			600
		Other Income (Expense)
(16	)	Investment income		50			3			-			-			(26	)		27
(17	)	Interest expense		(109	)		(28	)		-			(1	)		(44	)		(182	)
(18	)	Capitalized interest		4			7			-			-			-			11
(19	)	Subsidiaries' preferred stock dividends		-			-			-			-			-			-
(20	)	Total Other Expense		(55	)		(18	)		-			(1	)		(70	)		(144	)
(21	)	Income From Continuing Operations
		Before Income Taxes		277			178			57			3			(59	)		456
(22	)	Income taxes		110			71			23			4			(20	)		188
(23	)	Income From Continuing Operations		167			107			34			(1	)		(39	)		268
(24	)	Discontinued operations		-			-			-			-			-			-
(25	)	Net Income	$	167		$	107		$	34		$	(1	)	$	(39	)	$	268
(a	)	Consists of regulated transmission and distribution operations, including transition cost recovery, and provider of last resort generation service for
		FirstEnergy's Pennsylvania and New Jersey electric utility subsidiaries.
(b	)	Consists of unregulated generation and commodity operations, including competitive electric sales, and generation sales to affiliated electric utilities.
(c	)	Represents provider of last resort generation service by FirstEnergy's Ohio electric utility subsidiaries.
(d	)	Primarily consists of telecommunications services.

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 Consolidated Report to the Financial Community – 4th Quarter Segment Report 2007              & #160; 1

FirstEnergy Corp.

Consolidated Income Segments

 (In millions)

			Three Months Ended December 31, 2006
									Ohio
			Energy			Competitive			Transitional
			Delivery			Energy			Generation						Reconciling
			Services (a)			Services (b)			Services (c)			Other (d)			Adjustments			Consolidated
		Revenues
(1	)	Electric sales	$	1,605		$	311		$	576		$	-		$	-		$	2,492
(2	)	FE Facilities		-			-			-			-			-			-
(3	)	Other		142			41			6			3			(4	)		188
(4	)	Internal revenues		-			612			-			-			(612	)		-
(5	)	Total Revenues		1,747			964			582			3			(616	)		2,680
		Expenses
(6	)	Fuel		1			282			-			-			-			283
(7	)	Purchased power		671			114			492			-			(613	)		664
(8	)	Other operating expenses		388			300			62			(6	)		(9	)		735
(9	)	FE Facilities		-			-			-			-			-			-
(10	)	Provision for depreciation		97			47			-			1			6			151
(11	)	Amortization of regulatory assets		192			-			5			-			-			197
(12	)	Deferral of new regulatory assets		(100	)		-			(21	)		-			-			(121	)
(13	)	General taxes		140			20			3			(3	)		7			167
(14	)	Total Expenses		1,389			763			541			(8	)		(609	)		2,076
(15	)	Operating Income		358			201			41			11			(7	)		604
		Other Income (Expense)
(16	)	Investment income		84			-			-			-			(55	)		29
(17	)	Interest expense		(121	)		(52	)		-			(1	)		(19	)		(193	)
(18	)	Capitalized interest		3			3			-			-			(1	)		5
(19	)	Subsidiaries' preferred stock dividends		(7	)		-			-			-			6			(1	)
(20	)	Total Other Expense		(41	)		(49	)		-			(1	)		(69	)		(160	)
(21	)	Income From Continuing Operations
		Before Income Taxes		317			152			41			10			(76	)		444
(22	)	Income taxes		127			61			17			(4	)		(31	)		170
(23	)	Income From Continuing Operations		190			91			24			14			(45	)		274
(24	)	Discontinued operations		-			-			-			-			-			-
(25	)	Net Income	$	190		$	91		$	24		$	14		$	(45	)	$	274
(a	)	Consists of regulated transmission and distribution operations, including transition cost recovery, and provider of last resort generation service for
		FirstEnergy's Pennsylvania and New Jersey electric utility subsidiaries.
(b	)	Consists of unregulated generation and commodity operations, including competitive electric sales,and generation sales to affiliated electric utilities.
(c	)	Represents provider of last resort generation service by FirstEnergy's Ohio electric utility subsidiaries.
(d	)	Consists of telecommunications services and non-core businesses divested in 2006 (Facilities Services Group and MYR)

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 Consolidated Report to the Financial Community – 4th Quarter Segment Report                 2

FirstEnergy Corp.

Consolidated Income Segments

 (In millions)

			Three Months Ended Dec. 31, 2007 vs. Three Months Ended Dec. 31, 2006
									Ohio
			Energy			Competitive			Transitional
			Delivery			Energy			Generation						Reconciling
			Services (a)			Services (b)			Services (c)			Other (d)			Adjustments			Consolidated
		Revenues
(1	)	Electric sales	$	316		$	32		$	41		$	-		$	-		$	389
(2	)	FE Facilities		-			-			-			-			-			-
(3	)	Other		8			(5	)		5			7			(5	)		10
(4	)	Internal revenues		-			79			-			-			(79	)		-
(5	)	Total Revenues		324			106			46			7			(84	)		399
		Expenses
(6	)	Fuel		-			8			-			-			-			8
(7	)	Purchased power		228			72			36			-			(78	)		258
(8	)	Other operating expenses		57			21			25			11			(18	)		96
(9	)	FE Facilities		-			-			-			-			-			-
(10	)	Provision for depreciation		6			4			-			-			-			10
(11	)	Amortization of regulatory assets		34			-			3			-			-			37
(12	)	Deferral of new regulatory assets		28			-			(32	)		-			-			(4	)
(13	)	General taxes		(3	)		6			(2	)		3			(6	)		(2	)
(14	)	Total Expenses		350			111			30			14			(102	)		403
(15	)	Operating Income		(26	)		(5	)		16			(7	)		18			(4	)
		Other Income (Expense)
(16	)	Investment income		(34	)		3			-			-			29			(2	)
(17	)	Interest expense		12			24			-			-			(25	)		11
(18	)	Capitalized interest		1			4			-			-			1			6
(19	)	Subsidiaries' preferred stock dividends		7			-			-			-			(6	)		1
(20	)	Total Other Expense		(14	)		31			-			-			(1	)		16
(21	)	Income From Continuing Operations
		Before Income Taxes		(40	)		26			16			(7	)		17			12
(22	)	Income taxes		(17	)		10			6			8			11			18
(23	)	Income From Continuing Operations		(23	)		16			10			(15	)		6			(6	)
(24	)	Discontinued operations		-			-			-			-			-			-
(25	)	Net Income	$	(23	)	$	16		$	10		$	(15	)	$	6		$	(6	)
(a	)	Consists of regulated transmission and distribution operations, including transition cost recovery,and provider of last resort generation service for
		FirstEnergy's Pennsylvania and New Jersey electric utility subsidiaries.
(b	)	Consists of unregulated generation and commodity operations, including competitive electric sales, and generation sales to affiliated electric utilities.
(c	)	Represents provider of last resort generation service by FirstEnergy's Ohio electric utility subsidiaries.
(d	)	Consists of telecommunications services and non-core businesses divested in 2006 (Facilities Services Group and MYR).

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 Consolidated Report to the Financial Community – 4th Quarter Segment Report                                                                                                                                                           3