X0306 4 2013-04-30 0000277595 ENERGEN CORP EGN 0001370809 Porter Charles W 605 RICHARD ARRINGTON JR. BLVD. NORTH BIRMINGHAM AL 35203-2707 0 1 0 0 Vice President, CFO Common Stock (ESP) 1808 I ESP Common Stock 17418 D Common Stock (Restricted) 4155 D Common Stock (Deferred) 2013-04-30 4 A 0 17 47.42 A 688 D Stock Option (Right to Buy) (NQ) 60.56 2018-01-22 Common Stock 13025 13025 D Stock Option (Right to Buy) (NQ) 29.79 2019-01-27 Comon Stock 45201 45201 D Stock Option (Right to Buy) (NQ) 46.69 2020-01-26 Common Stock 24697 24697 D Stock Option (Right to Buy) (NQ) 54.99 2021-01-25 Common Stock 24090 24090 D Stock Option (Right to Buy) (NQ) 54.11 2022-01-24 Common Stock 32667 32667 D Stock Option (Right to Buy) (NQ) 48.36 2023-01-23 Common Stock 12078 12078 D Energen Corporation Employee Savings Plan, number of shares and securities are estimates based on trustee's unit accounting. Energen Corporation Deferred Compensation Plan; number of securities is estimated based on recordkeepers' unit accounting. The option became exercisable in three annual installments of 4,341, 4,342 and 4,342 on January 23, 2009, 2010 and 2011, respectively. The option became exercisable in three equal annual installments of 15,067 each on January 28, 2010, 2011 and 2012, respectively. The option became exercisable in three annual installments of 8,232, 8,232 and 8,233 on January 27, 2011, 2012 and 2013, respectively. The option becomes exercisable in three equal annual installments of 8,030 each on January 26, 2012, 2013 and 2014, repectively. The option becomes exercisable in three equal annual installments of 10,889 each on January 25, 2013, 2014 and 2015, respectively. The option becomes exercisable in three equal annual installments of 4,026 each on January 24, 2014, 2015 and 2016, respectively. J.D. Woodruff, Attorney in Fact 2013-05-01