Two Allen Center is a 521 ft (159 m) tall skyscraper in Houston, Texas.

[3] Two Allen Center hosts the headquarters of Houston-based national tax and business law firm Chamberlain Hrdlicka.

[5] Devon Energy had its Houston office in Two Allen Center.

In October 2012 Devon Energy announced that it was closing its office there, affecting 500 jobs.

[6] Previously Trizec Properties had its Houston offices in Suite 1100.