X0101 EFFECT 33 LIVE 2010-05-04 0001193125-10-092058 POS AM 0001263050 Texas Competitive Electric Holdings CO LLC 333-157057 0001445049 Energy Future Competitive Holdings CO 333-157057-44 0001445347 Generation MT Co LLC 333-157057-43 0001445349 Decordova Power Co LLC 333-157057-41 0001445350 Collin Power Co LLC 333-157057-40 0001445351 Big Brown Power Co LLC 333-157057-39 0001445352 Big Brown Lignite Co LLC 333-157057-38 0001445353 Big Brown 3 Power Co LLC 333-157057-37 0001445377 Morgan Creek 7 Power Co LLC 333-157057-36 0001445378 Monticello 4 Power Co LLC 333-157057-35 0001445379 Martin Lake 4 Power Co LLC 333-157057-34 0001445360 Valley Power Co LLC 333-157057-32 0001445361 Valley NG Power Co LLC 333-157057-31 0001445362 TXU SESCO Energy Services Co 333-157057-30 0001445363 TXU SESCO Co LLC 333-157057-29 0001445364 TXU SEM Co 333-157057-28 0001445365 TXU Retail Services Co 333-157057-27 0001445366 TXU Energy Solutions Co LLC 333-157057-26 0001445368 TXU Energy Retail Co LLC 333-157057-24 0001445370 Tradinghouse Power Co LLC 333-157057-22 0001445371 Tradinghouse 3 & 4 Power Co LLC 333-157057-21 0001445372 Sandow Power Co LLC 333-157057-20 0001445373 Oak Grove Power Co LLC 333-157057-19 0001445374 Oak Grove Mining Co LLC 333-157057-18 0001445375 Oak Grove Management Co LLC 333-157057-17 0001445376 NCA Resources Development Co LLC 333-157057-16 0001445380 Luminant Renewables Co LLC 333-157057-15 0001445381 Luminant Power Services Co 333-157057-14 0001445382 Luminant Mining Services Co 333-157057-13 0001445383 Luminant Mining Co LLC 333-157057-12 0001445385 Luminant Mineral Development Co LLC 333-157057-11 0001445386 Luminant Holding Co LLC 333-157057-10 0001445387 Luminant Generation Co LLC 333-157057-09 0001445391 Luminant ET Services Co 333-157057-08 0001445392 Luminant Energy Trading California Co 333-157057-07 0001445393 Luminant Energy Services Co 333-157057-06 0001445394 Luminant Energy Co LLC 333-157057-05 0001445395 Luminant Big Brown Mining Co LLC 333-157057-04 0001445396 Lake Creek 3 Power Co LLC 333-157057-03 0001445397 Generation SVC Co 333-157057-02 0001445553 TCEH Finance, Inc. 333-157057-01