“Big 5 Sporting Goods might be the next major national retailer to move into Oak Harbor.Tuesday night, the Oak Harbor City Council approved an increase in building size for the Oak Tree Village development on Highway 20 and Cabot Drive. Oak Harbor developer Bill Massey is the president of Oak Tree Investments, Inc., which is developing the commercial property.According to a letter Massey sent to the city, his company has the opportunity to bring Big 5 Sporting Goods to Oak Harbor, however, the space required for their needs would cause us to exceed our allowed limits.Under a 1989 agreement with the city, Massey agreed that the entire development would be limited to 68,000 square feet. The increase approved by the council allows an extra 2,000 square feet of building, but the development will still remain within the building limits for a C-5 zone.The proposed sporting goods store itself would total 9,970 square feet.Massey could not be reached for comment this week, but an Oak Tree Investments staff member said that the company received a letter of intent from California-based Big 5 Sporting Goods and are in preliminary negotiations with them. The sporting goods chain currently operates it closest store in Burlington. “