completed in 1983 with 50 floors. It is the 12th-tallest building in the city. Macquarie Capital (USA) Inc. has an office in Suite 4200. Oil States International () has an office in Suite 4620. Tenants One Allen Center Don Patron Bar and Grill - Lobby Operated a sit-down restaurant and a breakfast and lunch taco bar. The restaurant was active for around 20 years, servicing local office workers and catering corporate office parties. Phaedra Cook of the Houston Press wrote that Don Patron "hasn't been a critical darling of food writers in a long time" but that "it has been an important part of work life for thousands of people who work in" the complex and that "it's been treasured for good Tex-Mex plates and as a convenient spot for business lunches[...]and was great for indulging in an after-work margarita or two, also." In 2016 the management revealed plans to remodel the lobby area of One Allen Center; Don Patron's dining hall was closed by February 29, 2016, and the taco stand is scheduled to close on Friday March 5, 2016. The owners of Don Patron will continue to operate Tejas Grill & Sports Bar. Coastal Water Authority - Suite 2800 Two Allen Center Qatar Airways, Suite 1600 Chamberlain Hrdlicka law firm in Suite 1400 on the 13th and 14th floors. Three Allen Center The headquarters of Plains All American Pipeline, Suite 1600 EOG Resources had space in Allen Center; in 2006 it announced that it was moving to the Heritage Plaza. It planned to move 400 employees there by early 2007. When it occupied portions of Three Allen Center, EOG had of space occupied scattered throughout Three Allen Center. At one point the Consulate-General of Switzerland in Houston resided in Suite 1040 of Two Allen Center; the mission closed in 2006. See also List of tallest buildings in Houston List of tallest buildings in Texas References External links One Allen Center - Emporis One Allen Center - Skyscraperpage Three Allen Center - Emporis 1400 Smith Street - Skyscraperpage Skyscraper office buildings in Houston Brookfield Properties buildings Buildings and structures in Houston pl:Three Allen Center