Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt consisted of the following:

(in thousands)	December 31, 2015		December 31, 2014
Credit facility	$	222,500	$	485,000
7.40% Medium-term Notes, Series A, due July 24, 2017	2,000		2,000
7.36% Medium-term Notes, Series A, due July 24, 2017	15,000		15,000
7.23% Medium-term Notes, Series A, due July 28, 2017	2,000		2,000
7.32% Medium-term Notes, Series A, due July 28, 2022	20,000		20,000
7.60% Medium-term Notes, Series A, due July 26, 2027	5,000		5,000
7.35% Medium-term Notes, Series A, due July 28, 2027	10,000		10,000
7.125% Medium-term Notes, Series B, due February 15, 2028	100,000		100,000
4.625% Notes, due September 1, 2021	400,000		400,000
Total	776,500		1,039,000
Less unamortized debt discount	413		437
Total	$	776,087	$	1,038,563

Schedule of Aggregate Maturities of Long-Term Debt

The aggregate maturities of Energen’s long-term debt as of December 31, 2015 are as follows:

Years ending December 31, (in thousands)
2016	2017	2018	2019	2020	Thereafter
$—	$19,000	$—	$222,500	$—	$535,000

Schedule of Credit Facilities

The following is a summary of information relating to Energen’s credit facility:

(in thousands)	December 31, 2015			December 31, 2014
Credit facility outstanding	$	222,500		$	485,000
Available for borrowings	1,177,500			1,515,000
Total borrowing commitments	$	1,400,000		$	2,000,000
Maximum amount outstanding at any month-end	$	685,000		$	750,000
Average daily amount outstanding	$	358,929		$	482,166
Weighted average interest rates based on:
Average daily amount outstanding	1.60		%	1.46		%
Amount outstanding at year-end	1.64		%	1.67		%