First Reserve Fund VIII LP, managed by private-equity firm First Reserve Corp., Greenwich, Conn., sold approximately 50% of its interest in T-3 Energy Services Inc., Houston, (Nasdaq: TTES). First Reserve Fund sold 4.5 million T-3 Energy Services share in a series of block trades, reducing its beneficial ownership from 84.8% to approximately 44.3% of T- 3 Energy Services shares. T-3 provides drilling and completion services, workover and production and transportation. First Reserve remains T-3’s largest stockholder. The increased public float is to enhance liquidity.