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

December 9, 2010

Commission File Number	Registrant	State of Incorporation	IRS Employer Identification Number
1-7810	Energen Corporation	Alabama	63-0757759
2-38960	Alabama Gas Corporation	Alabama	63-0022000

605 Richard Arrington Jr. Boulevard North Birmingham, Alabama	35203
(Address of principal executive offices)	(Zip Code)

(205) 326-2700

(Registrant’s telephone number including area code)

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:

¨ 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 8.01 Other Events

On December 9, 2010 Energen Corporation issued a press release announcing that its oil and gas subsidiary, Energen Resources, has purchased 40,000 acres in the Permian Basin for $110 million plus standard closing adjustments. The company expects to use available cash and its syndicated lines of credit to finance the acquisition. This press release is attached hereto as Exhibit 99.1 to this Form 8-K and is furnished to, but not filed with, the Commission.

ITEM 7.01 Regulation FD Disclosure

On December 9, 2010 Energen Corporation issued a press release announcing that it has increased its 2011 capital spending plans, production estimates, and earnings guidance range to reflect the first-year impact of the previously announced Wolfberry acquisition expected to close this month and the Permian Basin acquisition also announced December 9, 2010. This press release is attached hereto as Exhibit 99.2 to this Form 8-K and is furnished to, but not filed with, the Commission.

Energen Corporation also included a reconciliation of certain Non-GAAP financial measures to the related GAAP financial measures. This reconciliation is attached hereto as Exhibit 99.3.

ITEM 9.01 Financial Statements and Exhibits

(d) Exhibits

The following exhibit is furnished as part of this Current Report on Form 8-K.

Exhibit Number:
99.1	Press Release dated December 9, 2010
99.2	Press Release dated December 9, 2010
99.3	Non-GAAP Financial Measures Reconciliation

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 thereunto duly authorized.

	ENERGEN CORPORATION
December 9, 2010	By	/s/ Charles W. Porter, Jr.
		Charles W. Porter, Jr. Vice President, Chief Financial Officer and Treasurer of Energen Corporation and Alabama Gas Corporation

EXHIBIT INDEX

EXHIBIT NUMBER	DESCRIPTION
99.1	* Press Release dated December 9, 2010
99.2	* Press Release dated December 9, 2010
99.3	* Non-GAAP Financial Measures Reconciliation

* This exhibit is furnished to, but not filed with, the Commission by inclusion herein.

EX-99.1

Exhibit 99.1

For Release: 6:00 P.M. EST	Contacts:   Julie S. Ryland
Thursday, December 9, 2010	205.326.8421

Energen Unit Buys Bone Spring Acreage in Permian Basin

Company Also Sees Potential Drilling Opportunities in Avalon Shale, Wolfcamp Trends

Conference Call Set for Friday, December 10, at 10:30 a.m. EST

BIRMINGHAM, Alabama – Energen Corporation (NYSE: EGN) today announced that its oil and gas exploration and production company, Energen Resources Corporation, has purchased 40,000 acres in the Permian Basin from SandRidge Energy Inc. for $110 million plus standard closing adjustments.

Energen Corporation will hold a conference call to discuss its latest Permian Basin

acquisition on Friday, December 10, 2010, at 10:30 a.m. EST.

The dial-in number is 888-818-6237 (reference Permian Acquisition Conference Call).

The call also may be accessed live at the Company’s Web site: www.energen.com.

Based on 320-acre spacing, the company has identified 62 net potential drilling locations in the 3^rd Bone Spring play on 21,300 net acres in Loving, Reeves, Ward, and Winkler counties; this acreage is in the heart of the emerging Bone Spring play. Unproved Bone Spring reserves (net unrisked) are estimated to exceed 21 million barrels of oil equivalents (MMBOE); oil comprises 78 percent and natural gas the remaining 22 percent. The company expects to invest approximately $465 million to develop the Bone Spring potential in this acreage acquisition.

“This is an exciting purchase for us,” said James McManus, chairman and chief executive officer of Energen. “Not only does it provide additional acreage that we were seeking in order to expand our Bone Spring activity, it offers upside potential in the Avalon Shale and, possibly, in the Wolfcamp trend. The Permian Basin has long been Energen Resources’ second largest area of operation, and we have had a solid base of oil reserves for quite some time. This acquisition – our fourth in the Permian Basin in the last 18 months – further solidifies our prominence in this prolific, domestic oil-producing region.”

A horizontal drilling play targeting the 3^rd Bone Spring Sands at a vertical depth of 10,500-11,500 feet, the typical Bone Spring well has estimated ultimate recovery of 400,000-500,000 BOE; Energen Resources estimates that drilling and completion costs are approximately $7.5 million per well.

Energen has drilled 8 Bone Spring wells to-date in Ward and Winkler counties and participated in another 23 wells on its existing Bone Spring acreage (18,300 net acres; 12,300 net undeveloped acres) in the Permian Basin, and the company has previously announced plans to drill another 5 net wells in 2011. This acquisition brings Energen Resources’ total acreage position in the 3^rd Bone Spring play to more than 33,000 net undeveloped acres and approximately 100 net drilling locations.

Energen Resources also believes the entire 40,000 acres is prospective for the Avalon shale and, possibly, the Wolfcamp trend. The company plans to drill at least one Avalon well in 2011; if successful, Energen’s new acreage position offers some 125 potential Avalon shale locations (320-acre spacing). Together with existing acreage, this acquisition brings the company’s total Avalon potential to more than 60,000 net undeveloped acres and more than 180 drilling locations.

SUMMARY OF NET UNDEVELOPED ACRES AND DRILLING LOCATIONS

	3rd Bone  Spring		Avalon Shale
Acquisition Net Acres – Undeveloped		21,300		40,000
Existing Net Acres – Undeveloped		12,300		22,500
Acquisition Potential Drilling Locations†		62		125
Existing Potential Drilling Locations†		38		55

Energen Corporation is a diversified energy holding company with headquarters in Birmingham, AL. Its two lines of business are the acquisition, development and exploration of domestic, onshore natural gas, oil and NGL reserves and natural gas distribution in central and north Alabama. Energen Resources has more than 3.5 trillion cubic feet equivalent of proved, probable, and possible reserves in the San Juan, Permian, and Black Warrior basins. Alabama Gas Corporation is the largest distributor of natural gas in Alabama. More information is available at http://www.energen.com.

This release contains statements expressing expectations of future plans, objectives and performance that constitute forward-looking statements made pursuant to the Safe Harbor provision of the Private Securities Litigation Reform Act of 1995. Except as otherwise disclosed, the Company’s forward-looking statements do not reflect the impact of possible or pending acquisitions, divestitures or restructurings. We undertake no obligation to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise. All statements based on future expectations rather than on historical facts are forward-looking statements that are dependent on certain events, risks and uncertainties that could cause actual results to differ materially from those anticipated. In addition, the Company cannot guarantee the absence of errors in input data, calculations and formulas used in its estimates, assumptions and forecasts. A more complete discussion of risks and uncertainties that could affect future results of Energen and its subsidiaries is included in the Company’s periodic reports filed with the Securities and Exchange Commission.

EX-99.2

Exhibit 99.2

For Release: 6:15 p.m. EDT	Contacts:   Julie S. Ryland
Thursday, December 9, 2010	205.326.8421

NEW PERMIAN ACQUISITIONS BOOST ENERGEN’S 2011 CAPITAL SPENDING PLANS

Oil, NGL Production Estimated to Grow 20% in 2011

2011 Earnings Guidance Increased

BIRMINGHAM, Alabama – Energen Corporation (NYSE: EGN) announced today that it has increased its 2011 capital spending plans, production estimates, and earnings guidance range to reflect the first-year impact of its two latest Permian Basin acquisitions: (1) a Wolfberry package expected to close this month and (2) a Bone Spring acreage package that closed today.

The diversified energy company is increasing its capital spending plans at Energen Resources Corporation, its oil and gas exploration and production business, to a record $667 million (prior 2011 guidance was for $510 million). Of this amount, more than 80 percent will be deployed in the oil-rich Permian Basin. Reflected in the company’s new capital budget are an additional 56 Wolfberry wells and another 8 Bone Spring wells. Energen Resources also has added capital for additional drilling rigs in the Permian Basin; the company expects to run 14-15 rigs in 2011, up from approximately 6-8 rigs in the prior guidance.

The company’s production forecast for 2011 is now 123 billion cubic feet equivalent (Bcfe), reflecting 9 percent growth over its 2010 estimated production (prior 2011 production guidance was 120 Bcfe). Oil and natural gas liquids (NGL) production is expected to jump 20 percent from 2010 to 2011 and comprise more than 40 percent of total estimated production.

Given the significant drilling inventory and limited current production of Energen Resources’ latest Permian Basin acquisitions, associated production in 2011 will be relatively modest; however, Permian production is expected to grow substantially over the next 4-5 years. Based on the pace of development drilling and the risking incorporated into its acquisition models, Energen Resources’ oil and NGL production could increase approximately 60 percent from 2010 to 2013.

As a result of changes to its 2011 production estimates, Energen is revising upward its earnings guidance by 5 cents to $3.25-$3.65 per diluted share; this guidance also reflects an expected increase in interest expense associated with the potential issuance of long-term debt to help finance recent acquisitions.

CAPITAL SPENDING IN 2011

Oil and natural gas liquids in the Permian Basin will, once again, be the focus of Energen Resources’ capital plans given the strength of oil prices relative to natural gas.

Development Capital in Existing Properties By Area ($MM)

Area	2011 (e)				2010 (e)
	Revised		Prior
San Juan Basin	$	83	$	83	$	79
Permian Basin	$	532	$	368	$	266
Black Warrior Basin	$	14	$	14	$	1
N. LA/E. TX/Other	$	10	$	10	$	7
TOTAL	$	639	$	475	$	353

Development Drilling: Net Wells by Area

Area	2011 (e)				2010 (e)
	Revised		Prior
San Juan Basin		45		45		24
Permian Basin		350		284		234
Black Warrior Basin		41		41		1
N. LA/E. TX/Other		3		3		1

Energen Resources also plans to invest $25 million for exploratory drilling in the Permian Basin in 2011.

2011 EARNINGS GUIDANCE

Energen’s new earnings guidance range for 2011 is $3.25-$3.65 per diluted share. The company also increased its 2011 after-tax cash flow estimate to $643-$672 million. Energen’s guidance assumptions for commodity prices remained unchanged at $4.25 per thousand cubic feet (Mcf) for natural gas, $80 per barrel for oil, and $0.83 per gallon for NGL. Energen also has added oil and natural gas hedges for 2011. Approximately 63 percent of the company’s 2011 estimated production is now hedged at an average NYMEX-equivalent price of $8.72 per Mcfe.

Production Comparison

Commodity	2011 (e)		2010 (e)		Change
Natural Gas (Bcf)		72.1		71.1		1	%
Oil (MBO)		6,420		5,203		23	%
NGL (MMgal)		86.7		76.8		13	%
Total (Bcfe)		123.0		113.3		9	%

Production By Area Comparison (Bcfe)

Area	2011 (e)		2010 (e)		Change
San Juan Basin		57.4		56.4		2	%
Permian Basin		47.1		37.3		26	%
Black Warrior Basin		12.6		13.1		(4	)%
N. LA/E. TX/Other		5.9		6.5		(9	)%

Energen Resources updated 2011 hedge position is as follows:

Commodity	Hedge Volumes		Estimated Production		Hedge %			NYMEXe Price
Natural Gas		44.9 Bcf		72.1 Bcf		62	%	$	6.48/Mcf
Oil		4.4 MMBbl		6.4 MMBbl		69	%	$	78.11/barrel
NGLs		38.9 MMgal		86.7 MMgal		45	%	$	0.89/gallon

Energen Resources’ natural gas and oil hedge positions by hedge type for 2011 are as follows:

Natural Gas Hedges	Volumes (Bcf)		Assumed Differential		NYMEXe Price
San Juan Basin		31.3	$	0.45 per Mcf	$	6.44 per Mcf
NYMEX		13.6		—	$	6.58 per Mcf
Oil Hedges	Volumes (MBbl)		Assumed Differential		NYMEXe Price
Sour Oil (WTS)		2,076	$	2.50 per barrel	$	72.74 per barrel
NYMEX		2,345		—	$	82.86 per barrel

Other key assumptions in Energen’s 2011 guidance include:

• An average DD&A rate at Energen Resources of $1.92 per Mcfe (prior guidance: $1.86 per Mcfe);

• LOE, including production taxes, at Energen Resources of $2.03 per Mcfe (base LOE and marketing and transportation costs of $1.63 per Mcfe);

• G&A expense at Energen Resources of 48 cents per Mcfe;

• Alagasco earning on estimated average equity of $346 million; and

• Capital spending of $75 million by Alagasco.

Sensitivity of 2011 Earnings, Cash Flows to Changes in Commodity Prices

Given Energen Resources’ current hedge position for 2011, changes in commodity prices are estimated to have the following impact on Energen’s 2011 earnings and cash flows:

• Every 10-cent change in the average NYMEX price of gas from $4.25 represents an estimated net income impact of approximately $1,250,000 million (1.7 cents per diluted share).

• Every $1.00 change in the average NYMEX price of oil from $80 per barrel represents an estimated net income impact of approximately $1,085,000 (1.5 cents per diluted share).

• Every 1-cent change in the average price of liquids from $0.83 per gallon represents an estimated net income impact of approximately $250,000 (0.4 cents per diluted share).

Price-related events such as substantial basis differential changes could cause earnings sensitivities to be materially different from those outlined above.

HEDGE POSITIONS STRENGTHENED IN 2012-2014

In recent weeks, Energen Resources has sold additional swaps for a portion of its oil production in 2012, 2013, and 2014.

Energen Resources’ hedge position for 2012 is as follows:

Commodity	Hedge Volumes		NYMEXe Price
Oil		3.7 MMBbl	$	82.34/barrel
NGLs		36.4 MMgal	$	0.85/gallon

Energen Resources’ oil hedge position by hedge type for 2012 is as follows:

Oil Hedges	Volumes (MBbl)		Assumed Differential		NYMEXe Price
Sour Oil (WTS)		672	$	2.80 per barrel	$	84.20 per barrel
NYMEX		3,072		—	$	81.94 per barrel

Energen Resources’ oil hedge positions in 2013 and 2014 are as follows:

Commodity	Hedge Volumes		NYMEX Price
2013		3.2 MMBbl	$	85.32/barrel
2014		1.9 MMBbl	$	86.62/barrel

Average realized oil and gas prices for Energen Resources’ production associated with NYMEX contracts as well as for unhedged production will reflect the impact of basis differentials. Average realized NGL prices will be net of transportation and fractionation fees. For production associated with basin-specific contracts, Energen Resources will receive the contracted hedge price. Energen typically hedges basis differentials where applicable. In the tables above, the basin-specific contract prices were converted for comparability purposes to a NYMEX-equivalent price by adding to them Energen Resources’ assumed basis differentials.

Energen Corporation will hold a conference call to discuss its latest Permian

Basin acquisition on Friday, December 10, 2010, at 10:30 a.m. EST.

The dial-in number is 888-818-6237 (reference Permian Acquisition Conference Call).

The call also may be accessed live at the Company’s Web site: www.energen.com.

Energen Corporation is a diversified energy holding company with headquarters in Birmingham, AL. Its two lines of business are the acquisition, development and exploration of domestic, onshore natural gas, oil and NGL reserves and natural gas distribution in central and north Alabama. Energen Resources has approximately 3.5 trillion cubic feet equivalent of proved, probable, and possible reserves in the San Juan, Permian, and Black Warrior basins. Alabama Gas Corporation is the largest distributor of natural gas in Alabama. More information is available at http://www.energen.com.

This release contains statements expressing expectations of future plans, objectives and performance that constitute forward-looking statements made pursuant to the Safe Harbor provision of the Private Securities Litigation Reform Act of 1995. Except as otherwise disclosed, the Company’s forward-looking statements do not reflect the impact of possible or pending acquisitions, divestitures or restructurings. We undertake no obligation to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise. All statements based on future expectations rather than on historical facts are forward-looking statements that are dependent on certain events, risks and uncertainties that could cause actual results to differ materially from those anticipated. In addition, the Company cannot guarantee the absence of errors in input data, calculations and formulas used in its estimates, assumptions and forecasts. A more complete discussion of risks and uncertainties that could affect future results of Energen and its subsidiaries is included in the Company’s periodic reports filed with the Securities and Exchange Commission.

EX-99.3

Exhibit 99.3

Non-GAAP Financial Measures

The United States Securities and Exchange Commission requires public companies, such as Energen Corporation (the Company), to reconcile Non-GAAP (GAAP refers to generally accepted accounting principles) financial measures to related GAAP measures. After-tax Cash Flows is Non-GAAP financial measure. Energen believes after-tax cash flows are relevant because they are a measure of cash available to fund the Company's capital expenditures, dividends, debt reduction, and other investments.

Reconciliation To GAAP Information

($ in millions)

	Year Ended 12/31
	2011 Estimate (e)
Net Income (GAAP)		235		—	263
Depreciation, depletion and amortization		281		—	281
Deferred income taxes, net		127		—	128
After-tax Cash Flows (Non-GAAP)		643		—	672
Changes in assets and liabilities and other adjustments		(29	)	—	(29	)
Net Cash Provided by Operating Activities (GAAP)		614		—	643

(e) This estimate is a "forward-looking statement" as defined by the Securities and Exchange Commission. All statements based on future expectations rather than on historical facts are forward-looking statements that are dependent on certain events, risks and uncertainties that could cause actual results to differ materially from those anticipated. In addition, the Company cannot guarantee the absence of errors in input data, calculations and formulas used in its estimates, assumptions and forecasts. A discussion of risks and uncertainties, which could affect future results of Energen and its subsidiaries, is included in the Company's periodic reports filed with the Securities and Exchange Commission.