EXHIBIT 21
TXU CORP.
SUBSIDIARY HIERARCHY
Effective December 31, 2006
| State or Country of Incorporation | ||
| TXU Energy Company LLC 1 |
Delaware | |
| TXU Big Brown Management Company LLC |
Delaware | |
| TXU Big Brown Company LP 2 |
Texas | |
| TXU Big Brown Lignite Management Company LLC |
Delaware | |
| TXU Big Brown Lignite Company LP 3 |
Texas | |
| TXU DeCordova Management Company LLC |
Delaware | |
| TXU DeCordova Company LP 4 |
Texas | |
| TXU Tradinghouse Management Company LLC |
Delaware | |
| TXU Tradinghouse Company LP 5 |
Texas | |
| TXU Generation Management Company LLC |
Delaware | |
| TXU Generation Company LP 6 |
Texas | |
| Valley Power Company LLC |
Texas | |
| Fuelco LLC 7 |
Delaware | |
| TXU Renewables Investment Company LLC |
Delaware | |
| TXU Renewables Management Company LLC |
Delaware | |
| TXU Renewables Company LP 8 |
Texas | |
| TXU Generation Services Company |
Texas | |
| Oak Grove Management Company LLC |
Delaware | |
| TXU Energy Investment Company LLC |
Delaware | |
| TXU Energy Finance Company LLC |
Delaware | |
| TXU Mining Management Company LLC |
Delaware | |
| TXU Mining Company LP 9 |
Texas | |
| TXU Big Brown Mining Management Company LLC |
Delaware | |
| TXU Big Brown Mining Company LP 10 |
Texas | |
| Oak Grove Mining Company LLC |
Texas | |
| Oak Grove Power Company LLC |
Texas | |
| Lake Creek 3 Power Company LLC |
Texas | |
| Monticello 4 Power Company LLC |
Texas | |
| Martin Lake Power Company LLC |
Texas | |
| Morgan Creek Power Company LLC |
Texas | |
| Big Brown 3 Power Company LLC |
Texas | |
| Tradinghouse 3 & 4 Power Company LLC |
Texas | |
| TXU SESCO Company LLC |
Texas | |
| TXU SESCO Energy Services Company |
Texas | |
| TXU Energy Retail Management Company LLC |
Delaware | |
| TXU Energy Retail Company LP 11 |
Texas | |
| TXU Portfolio Optimization Company LLC |
Delaware | |
| TXU Portfolio Management Company LP 12 |
Texas | |
| TXU Energy Trading (California) Company |
Texas | |
| TXU Energy Trading Canada Limited |
Canada | |
| TXU ET Services Company |
Texas | |
| TXU Energy Solutions Investment Company LLC |
Delaware | |
| TXU Energy Solutions Management Company LLC |
Delaware | |
| TXU Energy Solutions Company LP 13 |
Texas | |
| TXU Chilled Water Solutions Company |
Texas | |
| TXU SEM Company |
Delaware | |
| Wichita/Victory Ave. LLC |
Texas |
1
Except as noted above, the voting stock of each subsidiary company and their subsidiaries and affiliates is wholly owned (100%) by its parent or a wholly-owned affiliate.
| 1 |
99% owned by TXU US Holdings Company, 1% owned by TXU Energy Holdings Company |
| 2 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Big Brown Management Company LLC (general partner) |
| 3 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Big Brown Lignite Management Company LLC (general partner) |
| 4 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU DeCordova Management Company LLC (general partner) |
| 5 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Tradinghouse Management Company LLC (general partner) |
| 6 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Generation Management Company LLC (general partner) |
| 7 |
92% membership interest owned by TXU Generation Company LP |
| 8 |
99.5% owned by TXU Renewables Investment Company LLC (limited partner) and 0.5% owned by TXU Renewables Management Company LLC (general partner) |
| 9 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Mining Management Company LLC (general partner) |
| 10 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Big Brown Mining Management Company LLC (general partner) |
| 11 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Energy Retail Management Company LLC (general partner) |
| 12 |
99.5% owned by TXU Energy Investment Company LLC (limited partner) and 0.5% owned by TXU Portfolio Optimization Company LLC (general partner) |
| 13 |
99.5% owned by TXU Energy Solutions Investment Company LLC (limited partner) and 0.5% owned by TXU Energy Solutions Management Company LLC (general partner) |
Affiliates
| State or County of Incorporation or Organization | ||
| EIP Holdings LLC (1) |
Delaware |
| 1 |
20% (2.5M) membership interest owned by TXU Portfolio Management Company LP. |
2