Exhibit 21.2
Exelon Generation Company, LLC Subsidiary Listing
| Affiliate | Jurisdiction of Formation | |
| AllEnergy Gas & Electric Marketing Company, LLC |
Delaware | |
| AmerGen Clinton NQF, LLC |
Nevada | |
| AmerGen Consolidation, LLC |
Nevada | |
| AmerGen Energy Company, LLC |
Delaware | |
| AmerGen Oyster Creek NQF, LLC |
Nevada | |
| AmerGen TMI NQF, LLC |
Nevada | |
| Braidwood 1 NQF, LLC |
Nevada | |
| Braidwood 2 NQF, LLC |
Nevada | |
| Byron 1 NQF, LLC |
Nevada | |
| Byron 2 NQF, LLC |
Nevada | |
| Cenesco Company, LLC |
Delaware | |
| Concomber, Ltd. |
Bermuda | |
| Conemaugh Fuels, LLC |
Delaware | |
| Dresden 1 NQF, LLC |
Nevada | |
| Dresden 2 NQF, LLC |
Nevada | |
| Dresden 3 NQF, LLC |
Nevada | |
| ENEH Services, LLC |
Delaware | |
| Exelon AOG Holding # 1, Inc. |
Delaware | |
| Exelon AOG Holding # 2, Inc. |
Delaware | |
| Exelon Edgar, LLC |
Delaware | |
| Exelon Energy Company |
Delaware | |
| Exelon Framingham Development, LLC |
Delaware | |
| Exelon Framingham, LLC |
Delaware | |
| Exelon Generation Consolidation, LLC |
Nevada | |
| Exelon Generation Finance Company, LLC |
Delaware | |
| Exelon Generation International, Inc. |
Pennsylvania | |
| Exelon Hamilton, LLC |
Delaware | |
| Exelon New Boston, LLC |
Delaware | |
| Exelon New England Development, LLC |
Delaware | |
| Exelon New England Holdings, LLC |
Delaware | |
| Exelon New England Power Marketing, Limited Partnership |
Delaware | |
| Exelon Peaker Development General, LLC |
Delaware | |
| Exelon Peaker Development Limited, LLC |
Delaware | |
| Exelon PowerLabs, LLC |
Pennsylvania | |
| Exelon SHC, Inc. |
Delaware | |
| Exelon West Medway Development, LLC |
Delaware | |
| Exelon West Medway Expansion, LLC |
Delaware | |
| Exelon West Medway, LLC |
Delaware | |
| Exelon Wyman, LLC |
Delaware | |
| ExTex LaPorte Limited Partnership |
Texas | |
| ExTex Marketing, LLC |
Delaware | |
| ExTex Power, LP |
Delaware | |
| ExTex Retail Services Company, LLC |
Delaware | |
| Keystone Fuels, LLC |
Delaware | |
| LaSalle 1 NQF, LLC |
Nevada |
| LaSalle 2 NQF, LLC |
Nevada | |
| Limerick 1 NQF, LLC |
Nevada | |
| Limerick 2 NQF, LLC |
Nevada | |
| North America Power Services, Inc. |
Delaware | |
| Nuclear US Holdings, Inc. |
Delaware | |
| Nuclear US Investments, LLC |
Delaware | |
| Nuclear, Limited Partnership |
Delaware | |
| PeachBottom 1 NQF, LLC |
Nevada | |
| PeachBottom 2 NQF, LLC |
Nevada | |
| PeachBottom 3 NQF, LLC |
Nevada | |
| PECO Energy Power Company |
Pennsylvania | |
| Penesco Company, LLC |
Delaware | |
| Quad Cities 1 NQF, LLC |
Nevada | |
| Quad Cities 2 NQF, LLC |
Nevada | |
| Salem 1 NQF, LLC |
Nevada | |
| Salem 2 NQF, LLC |
Nevada | |
| Sithe Latin American Holdings, Ltd. |
Cayman Islands | |
| Sithe Overseas Power Services, Ltd. |
Virgin Islands | |
| Sithe PARDO Holdings, Ltd. |
Cayman Islands | |
| Sithe Tamuin Energy Services II, S. de R.L. de C.V. |
Mexico | |
| Sithe Tamuin Energy Services, S. de R.L. de C.V. |
Mexico | |
| Sithe Tamuin Investments II, S. de R.L. de C.V. |
Mexico | |
| Sithe Tamuin Investments, S. de R.L. de C.V. |
Mexico | |
| Southeast Chicago Energy Project, LLC |
Delaware | |
| Susquehanna Electric Company |
Maryland | |
| Susquehanna Power Company |
Maryland | |
| Tamuin Development Services, S. de R.L. de C.V. |
Mexico | |
| Tamuin Energy Management Services II, Inc. |
Delaware | |
| Tamuin Energy Management Services, Inc. |
Delaware | |
| Tamuin Holdings A, LLC |
Delaware | |
| Tamuin Holdings II, LLC |
Delaware | |
| Tamuin Holdings III, LLC |
Delaware | |
| Tamuin Holdings, LLC |
Delaware | |
| Tamuin International Finance II, LLC |
Delaware | |
| Tamuin International Finance, LLC |
Delaware | |
| Tamuin International, Inc. |
Delaware | |
| Tamuin Mexican Business Trust |
Mexico | |
| Tamuin Mexican Business Trust II |
Mexico | |
| TEG Holdings, LLC |
Delaware | |
| Termoelectrica del Golfo, S. de RL. de C.V. |
Mexico | |
| Termoelectrica Penoles, S. de R.L. de C.V. |
Mexico | |
| Texas Ohio Gas, Inc. |
Texas | |
| The Proprietors of the Susquehanna Canal |
Maryland | |
| Zion 1 NQF, LLC |
Nevada | |
| Zion 2 NQF, LLC |
Nevada |