5555 San Felipe is a 41-story 1.2 million square foot trophy office tower located in the Uptown / Galleria submarket. Originally developed as the headquarters for Marathon Oil, M-M has just completed a comprehensive renovation of the property. With the addition of a food hall, coffee bar, collaborative areas, media wall, fitness center and light filled spaces – 5555 San Felipe is one of the most modern, innovative buildings in Houston.