BANGKOK, March 27 (Reuters) - Thailand's oil and gas retailer, PTT Oil and Retail Business Pcl on Monday said it plans to invest $900 million this year to expand its local and overseas business.

About 45% of the budget will be used to expand its coffee house franchise, Cafe Amazon and fried chicken chain, Texas Chicken, Chief Executive Officer Disathat Panyarachun said. (Reporting by Chayut Setboonsarng; Editing by Martin Petty)