LONG-TERM DEBT AND NOTES PAYABLE

Long-term debt consisted of the following:



(in thousands)	December 31, 2011		December 31, 2010

Energen Corporation:
Medium-term Notes, Series A and B, interest ranging from 7.125% to 7.6%, for notes due July 30, 2012 to February 15, 2028	$	155,000	$	155,000
5% Notes, due October 1, 2013	50,000		50,000
4.625% Notes, due September 1, 2021	400,000		—
Senior Term Loans, (floating rate interest LIBOR plus 1.375%; currently 1.67% at December 31, 2011), due March 31, 2014 to November 29, 2016	300,000		—
Alabama Gas Corporation:
Medium-term Notes, Series A, interest of 7.57%	—		5,000
5.20% Notes, due January 15, 2020	40,000		40,000
5.70% Notes, due January 15, 2035	35,246		35,793
5.368% Notes, due December 1, 2015	80,000		80,000
5.90% Notes, due January 15, 2037	45,000		45,000
3.86% Notes, due December 21, 2021	50,000		—
Total	1,155,246		410,793
Less amounts due within one year	1,000		5,000
Less unamortized debt discount	546		539
Total	$	1,153,700	$	405,254

The aggregate maturities of Energen's long-term debt for the next five years are as follows:



Years ending December 31, (in thousands)
2012	2013	2014	2015	2016
$1,000	$50,000	$100,000	$180,000	$100,000

The aggregate maturities of Alagasco's long-term debt for the next five years are as follows:



Years ending December 31, (in thousands)
2012	2013	2014	2015	2016
—	—	—	$80,000	—

In August 2011, the Company issued $400 million in Senior Notes with an interest rate of 4.625 percent due September 1, 2021. In November 2011, the Company issued $300 million in Senior Term Loans (Senior Term Loans) with a floating interest rate due March 31, 2014 through November 29, 2016. The Company used the long-term debt proceeds to replace short-term obligations, enhance liquidity and to finance the property acquisition program at Energen Resources. In December 2011, Alagasco issued $50 million of long-term debt with an interest rate of 3.86 percent due December 21, 2021 to replace short-term obligations.

In December 2011, the Company entered into interest rate swap agreements for $200 million on the Senior Term Loans. The swap agreements exchange a variable interest rate for a fixed interest rate of 2.4175 percent on $200 million of the principal amount outstanding. The fair value of the Company's interest rate swap was a $1.5 million liability at December 31, 2011 and is classified as a Level 1 fair value.

The long-term debt and short-term debt agreements of Energen and Alagasco contain financial and nonfinancial covenants including routine matters such as timely payment of principal and interest, maintenance of corporate existence and restrictions on liens. None of the agreements have covenants or events of default based on credit ratings. All of the Company's debt is unsecured.

Under Energen's Indenture dated September 1, 1996 with The Bank of New York as Trustee, a cross default provision provides that any debt default of more than $10 million by Energen, Alagasco or Energen Resources will constitute an event of default by Energen. Under Alagasco’s Indenture dated November 1, 1993 with The Bank of New York as Trustee, a cross default provision provides that any debt default by Alagasco of more than $10 million will constitute an event of default by Alagasco. Neither Indenture includes a restriction on the payment of dividends.

On October 29, 2010, Energen and Alagasco entered into an $850 million and a $150 million, respectively, three-year syndicated unsecured credit facility (syndicated credit facilities) with domestic and foreign lenders. These syndicated credit facilities replace the majority of the Company’s short-term credit facilities which were available to Energen and Alagasco. Alagasco has been authorized by the APSC to borrow up to $200 million at any one time under short-term lines of credit. On November 2, 2011, Energen and Alagasco each entered into a first amendment to their respective syndicated credit facilities dated October 29, 2010. The amendments give Energen and Alagasco additional flexibility to incur unsecured indebtedness outside of the existing syndicated credit facilities.

Energen’s obligations under the $850 million syndicated credit facility are unconditionally guaranteed by Energen Resources. The financial covenants of the Energen credit facility limit Energen to a maximum consolidated debt to capitalization ratio of no more than 65 percent as of the end of any fiscal quarter. Energen may not pay dividends during an event of default or if the payment would result in an event of default.

Similarly, the financial covenants of the Alagasco credit facility limit Alagasco to a maximum consolidated debt to capitalization ratio of no more than 65 percent as of the end of any fiscal quarter. Alagasco may not pay dividends during an event of default or if the payment would result in an event of default.

Under the Energen credit facility, a cross default provision provides that any debt default of more than $50 million by Energen, Alagasco or Energen Resources will constitute an event of default by Energen. Under Alagasco’s credit facility, a cross default provision provides that any debt default by Alagasco of more than $50 million will constitute an event of default by Alagasco.

Upon an uncured event of default under either of the credit facilities, all amounts owing under the defaulted credit facility, if any, depending on the nature of the event of default will automatically, or may upon notice by the administrative agent or the requisite lenders thereunder, become immediately due and payable and the lenders may terminate their commitments under the defaulted facility. Energen and Alagasco were in compliance with the terms of their respective credit facilities as of December 31, 2011.

The following is a summary of information relating to the credit facilities:



(in thousands)	Current Term	Energen		Alagasco		Total
Syndicated Credit Facility	10/29/2013	$	850,000	$	150,000	$	1,000,000
Bryant Bank	10/31/2012	—		9,000		9,000
BancorpSouth Bank	5/23/2012	—		10,000		10,000
Total		$	850,000	$	169,000	$	1,019,000



(in thousands)	December 31, 2011			December 31, 2010
Energen outstanding	$	—		$	235,000
Alagasco outstanding	15,000			70,000
Notes payable to banks	15,000			305,000
Available for borrowings	1,004,000			714,000
Total	$	1,019,000		$	1,019,000
Energen maximum amount outstanding at any month-end	$	363,000		$	305,000
Energen average daily amount outstanding	$	229,094		$	19,732
Energen weighted average interest rates based on:
Average daily amount outstanding	2.04		%	2.07		%
Amount outstanding at year-end	3.58		%	2.03		%
Alagasco maximum amount outstanding at any month-end	$	70,000		$	70,000
Alagasco average daily amount outstanding	$	29,268		$	6,436
Alagasco weighted average interest rates based on:
Average daily amount outstanding	1.72		%	1.56		%
Amount outstanding at year-end	3.58		%	1.90		%

Energen's total interest expense was $44.8 million, $39.2 million and $39.4 million for the years ended December 31, 2011, 2010 and 2009, respectively. Total interest expense for Alagasco was $14.7 million, $13.9 million and $13.7 million for the years ended December 31, 2011, 2010 and 2009, respectively.