EX-21 6 d30531exv21.htm SUBSIDIARIES OF THE REGISTRANT exv21
 

Exhibit 21
SUBSIDIARIES OF ATMOS ENERGY CORPORATION
             
    State of   Percent of
Name   Incorporation   Ownership
 
            
ATMOS ENERGY HOLDINGS, INC.
  Delaware     100 %
(wholly-owned by Atmos Energy Corporation)
            
 
            
BLUE FLAME INSURANCE SERVICES, LTD
  Bermuda     100 %
(wholly-owned by Atmos Energy Corporation)
            
 
            
PDH I HOLDING COMPANY, INC. (1)
  Texas     100 %
(wholly-owned by Atmos Energy Corporation)
            
 
            
MISSISSIPPI ENERGIES, INC.
  Mississippi     100 %
(wholly-owned by Atmos Energy Corporation)
            
 
            
LEGENDARY LIGHTING, LLC
  Mississippi     50 %
(50% owned by Mississippi Energies, Inc.)
            
 
            
UNITARY GH&C PRODUCTS, LLC
  Mississippi     28 %
(28% owned by Mississippi Energies, Inc.)
            
 
            
ATMOS ENERGY SERVICES, LLC
  Delaware     100 %
(a limited liability company)
            
(wholly-owned by Atmos Energy Holdings, Inc.)
            
 
            
EGASCO, LLC
  Texas     100 %
(a limited liability company) (wholly-owned by
            
Atmos Energy Holdings, Inc.)
            
 
            
ENERGAS ENERGY SERVICES TRUST
  Pennsylvania     100 %
(a business trust)
            
(wholly-owned by Atmos Energy
            
Services, LLC)
            
 
            
UNITED CITIES PROPANE GAS, INC.
  Tennessee     100 %
(a wholly-owned subsidiary of Atmos Energy
            
Holdings, Inc.)
            
 
            
ENERMART ENERGY SERVICES TRUST (a business trust)
  Pennsylvania     100 %
(wholly-owned by Atmos Energy Holdings, Inc.)
            
 
            
ATMOS ENERGY MARKETING, LLC
  Delaware     100 %
(a limited liability company)
            
(wholly-owned by Atmos Energy Holdings, Inc.)
            

 

 

             
    State of   Percent of
Name   Incorporation   Ownership
 
            
ATMOS POWER SYSTEMS, INC.
  Georgia     100 %
(a wholly-owned subsidiary of Atmos Energy
            
Holdings, Inc.)
            
 
            
ATMOS PIPELINE AND STORAGE, LLC
  Delaware     100 %
(a limited liability company)
            
(wholly-owned by Atmos Energy Holdings, Inc.)
            
 
            
UCG STORAGE, INC.
  Delaware     100 %
(wholly-owned by Atmos Pipeline and Storage, LLC)
            
 
            
WKG STORAGE, INC.
  Delaware     100 %
(wholly-owned by Atmos Pipeline and Storage, LLC)
            
 
            
ATMOS EXPLORATION AND PRODUCTION, INC.
  Delaware     100 %
(wholly-owned by Atmos Pipeline and Storage, LLC)
            
 
            
TRANS LOUISIANA GAS PIPELINE, INC.
  Louisiana     100 %
(wholly-owned by Atmos Pipeline and Storage, LLC)
            
 
            
TRANS LOUISIANA GAS STORAGE, INC.
  Delaware     100 %
(wholly-owned by Atmos Pipeline and Storage, LLC)
            
 
(1)   PDH I Holding Company, Inc., a Texas corporation, became a wholly-owned subsidiary of Atmos Energy Corporation, as a result of its acquisition on October 1, 2004 from TXU Gas Company.