Brainard Gas Corporation
(May 1, 2013)

Columbia Gas of Ohio, Inc.
(April 30, 2013 - SSO)

Constitution Gas Transport Co. Inc.
(March 1, 2011)

Duke Energy Ohio (formerly CG&E)
(May 1, 2013)

Dominion East Ohio
(May 14, 2013 - SSO)

Eastern Natural Gas Company
(May 1, 2013)

Gasco Distribution Systems, Inc.
(June 1, 2009)

Glenwood Energy of Oxford, Inc.
(formerly Oxford Natural Gas)
(April 1, 2013)

N.I.E.D. (Harrietsville)
(January 1, 2006)

N.I.E.D. (Local Supply)
(January 1, 2006)

Northeast Ohio Natural Gas Corporation
(May 1, 2013)

Ohio Cumberland Gas
(October 21, 2012)

Ohio Gas Company
(June 1, 2009)

Orwell Natural Gas
(May 1, 2013)

Piedmont Gas Company
(April 1, 2013)

Pike Natural Gas (Hillsboro)
(May 1, 2013)

Pike Natural Gas (Waverly)
(May 1, 2013)

Southeastern Natural Gas Company
(May 1, 2013)

Suburban Natural Gas
(May 1, 2013)

Vectren Energy Delivery of Ohio
(May 1, 2013 ~ SSO)

 Waterville Gas & Oil Company
(May 1, 2013)