BANGKOK, Dec 30 (Reuters) - Most Southeast Asian stock markets rose on Wednesday as end-year portfolio buying lifted the Malaysian index to a more than two-month high and Thai stocks to a near two-week high, with energy shares leading the pack after oil prices rebounded overnight. The Kuala Lumpur composite index rose 0.8 percent to 1,699.59, the highest since Oct. 27. The index is expected to see limited gains in the near term, technically hitting 1,720, Affin Hwang Capital said in a report