CHESAPEAKE UTILITIES CORPORATION EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT SUBSIDIARIES STATE INCORPORATED ------------ ------------------- Eastern Shore Natural Gas Company Delaware Sharp Energy, Inc. Delaware Chesapeake Service Company Delaware Xeron, Inc. Mississippi Sam Shannahan Well Company, Inc. Maryland Sharp Water, Inc. Delaware SUBSIDIARIES OF SHARP ENERGY, INC. STATE INCORPORATED -------------------------------------- ------------------- Sharpgas, Inc. Delaware Tri-County Gas Co., Incorporated Maryland SUBSIDIARIES OF CHESAPEAKE SERVICE COMPANY STATE INCORPORATED ---------------------------------------------- ------------------- Skipjack, Inc. Delaware BravePoint, Inc. Georgia Chesapeake Investment Company Delaware Eastern Shore Real Estate, Inc. Maryland SUBSIDIARIES OF SHARP WATER, INC. STATE INCORPORATED ------------------------------------- ------------------- EcoWater Systems of Michigan, Inc. Michigan Carroll Water Systems, Inc. Maryland Absolute Water Care, Inc. Florida Sharp Water of Florida, Inc. Delaware Sharp Water of Idaho, Inc. Delaware Sharp Water of Minnesota, Inc. Delaware