X0306 4 2014-06-03 0000007332 SOUTHWESTERN ENERGY CO SWN 0001103813 KERLEY GREGORY D SUITE 125 2350 N. SAM HOUSTON PARKWAY EAST HOUSTON TX 77032 1 Common Stock 2014-06-03 4 S 0 50000 46.41 D 299900 D This transaction was executed in multiple trades at prices ranging from $46.35 to $46.45. The price reported above in Column 4 reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon written request, to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected. /s/ Melissa D. McCarty, Attorney-in-fact for Mr. Kerley 2014-06-04