1 EXHIBIT 21.1 SUBSIDIARIES 1. Heritage Operating L.P., a Delaware limited partnership, which does business under the following names: o Balgas o Carolane Propane Gas o Covington Propane o Gas Service Inc. o Gibson Propane o Greer Gas Co. o Harris Propane Gas o Heritage Propane o Holton's L.P. Gas o Horizon Gas o Horizon Gas of Palm Bay o Hydratane of Athens o Ikard & Newsom o Jerry's Propane Service o Keen Propane o Kingston Propane o Liberty Propane Gas o Modern Propane o Myers Propane Service o New Mexico Propane o Northern Energy o Northwestern Propane o Sawyer Gas o Spring Lake Super Flame o Tri-Gas of Benzie o Turner Gas o Wakulla L.P.G. o Waynesville Gas Service 2. Heritage-Bi State, L.L.C., a Delaware limited liability company, holding a partnership interest in the following: o Bi-State Propane (Bi-State Propane also transacts business under the name Turner Propane). 3. Heritage Service Corp., a Delaware corporation, holding a direct or indirect interest in the following: o M-P Oils Ltd. o M-P Oils Partnership 4. Guilford Gas Service, Inc.