USEC Inc. (USU: chart), supplies low enriched uranium for commercial nuclear power plants, said that its fourth-quarter net earnings increased to $40.1 million, or 46 cents per share, compared with $29.6 million, or 34 cents per share, in the year-ago period. Revenue declined to $544.2 million versus $549.7 million in the same period a year earlier.

CBRE Realty Finance Inc. (CBF: chart), which operates as a commercial real estate specialty finance company, said that its fourth-quarter net earnings increased to $3.5 million, or 12 cents per share, compared with $1.73 million, or 9 cents per share, in the year-ago period. Adjusted funds from operations rose to $5.9 million, or 19 cents per share, from $2.5 million, or 13 cents per share, last year. Revenue jumped to $25.6 million versus $8.78 million in the same period a year earlier.

Frontier Oil Corp. (FTO: chart), oil refiner, said that its fourth-quarter earnings declined to $52.4 million, or 47 cents per share, compared with $63 million, or 55 cents per share, a year earlier. The results for the quarter include an inventory loss of 22 cents per share. Revenue declined 5.5% to $1.09 billion versus last year''s $1.15 billion.

Blockbuster Inc. (BBI: chart), video rental chain, said that its fourth quarter profit dropped to $12.9 million, or 5 cents per share, compared with $18 million, or 9 cents per share, in the fourth quarter of 2005. On an adjusted basis, the company said it would have earned $20.4 million, or 9 cents a share, vs. $25.0 million, or 12 cents. Revenue increased 1.4% to $1.51 billion on an increase in worldwide same-store merchandise sales.

Federated Department Stores Inc. (FD: chart), store chain retailer, said that its fourth--quarter net income increased 5% to $733 million, or $1.40 per share compared with $699 million or $1.26 per share in the year-ago period. Revenue declined to $9.16 billion versus $9.57 billion in the same period a year earlier.