California-based Maguire Properties, Inc. (MPG) is a real estate investment trust (REIT) that specializes in the property management, marketing, leasing, acquiring, developing, and financing of high-quality office properties, primarily in the Southern California market. Maguire's office portfolio is mostly concentrated in the Los Angeles central business district (51.8% of rentable square feet), which makes it one of the largest owners of office space in this region. The company's other two major markets are Orange County (38% of rentable square feet) and San Diego County (4%). As of September 30, 2007, the company owned whole or had partial interests in 38 properties with approximately 21 million net rentable square feet, a 350-room hotel, and 13.8 million square feet of parking. The company also owned approximately 16 million square feet of undeveloped land for future development. Maguire's major tenants include: Southern California Gas Company (6.9% of total annualized rent), Sempra (2.8%), and Wells Fargo Bank (2.1%).