NewMarket Corp. (NEU: chart), developer of petroleum additives, said that its fourth-quarter net earnings declined to $4.5 million, or 26 cents per share, compared with $11.1 million, or 64 cents per share, in the year-ago period. Excluding special items, the company posted a per-share profit of 60 cents versus 46 cents. Revenue climbed to $306.2 million from $293.7 million in the same period a year earlier.

B/E Aerospace Inc. (BEAV: chart), aircraft cabin products maker, said that its fourth-quarter net income fell to $21.7 million, or 28 cents per share, from $62.1 million, or 96 cents per share, in the year-earlier period. Quarterly revenue jumped 44% to $321.6 million compared to $222.9 million in the same period a year earlier.

Regal-Beloit Corp. (RBC: chart), electric motors, generators and auto transmissions maker, said that its fourth-quarter earnings increased to $23 million, or 68 cents per share, compared with a year-ago profit of $20.3 million, or 63 cents per share. Quarterly revenue slipped 2.5% to $366.6 million from $376.2 million in the same period a year earlier.

Royal Caribbean Cruises Ltd. (RCL: chart), cruise line, said that its fourth-quarter net income increased to $46.6 million, or 22 cents per share, compared with a loss of $3.6 million, or 2 cents per share in the year-ago period. Revenue climbed to $1.15 billion versus $1 billion in the same period a year earlier.

Potlatch Corp. (PCH: chart), real-estate investment trust that owns forestland, said that its fourth-quarter earnings increased to $44.1 million, or $1.13 per share, compared with a year-ago profit of $9.9 million, or 34 cents per share. The latest results included a gain of $24 million, or 62 cents per share, related to the company''s share of the negotiated settlement of the softwood lumber trade dispute between the U.S. and Canada, as well as an income tax adjustment of $3.9 million, or 10 cents per share, stemming from an asset transfer. Revenue jumped to $390 million against $389.3 million a year earlier.