Construction Construction started on October 6, 2009. The first crane was installed on February 25, 2010, and the second crane was installed on June 25, 2010. In July 2010, construction had reached above street level. In September 2010, construction topped the 10th floor. In November, workers started installing glass on the bottom levels of the tower. In December 2010, the building reached the 22nd floor. Upon completion of the 34th floor, Devon Energy Center surpassed the Chase Tower (since renamed
BancFirst Tower) as the tallest building in Oklahoma City on March 10, 2011. On May 17 of that year, the Devon Energy Center became the tallest building in Oklahoma, rising above Tulsa's
BOK Tower. In June 2011, the building reached the 46th floor. On July 5, 2011, the building reached the 46th floor while the glass reached the 36th floor. The building marked its
topping out at 50 stories in a ceremony held on September 21, 2011, as the Devon Energy Center reached its final height of .
Completion and opening On October 23, 2012, the building marked its opening ceremony. It was confirmed by Devon Energy CEO,
J. Larry Nichols that there would not be an observation deck; however, a restaurant named "Vast" on the 49th and 50th floors would be open to the general public. Oklahoma City Mayor
Mick Cornett attended the opening ceremony and stated, "The visual impact it has on the city is so striking and so identifiable. It took just over three years to complete the building that has quickly become a staple in our city's skyline." On June 14, 2022,
conservative activist Maison Des Champs conducted a
free solo climb along the tower as part of an
anti-abortion protest. (Incidentally, weeks prior to his feat, the
Oklahoma Legislature passed several laws severely restricting abortion access in the state, including one banning the practice from the moment of conception.) He had previously gained media attention for climbing
The New York Times Building in
Manhattan, the
Aria Resort and Casino in
Las Vegas and the
Salesforce Tower in
San Francisco to protest abortion or
COVID-19 safety protocols. Des Champs—who only used chalk for gripping—was arrested after reaching the roof of the building, and was subsequently charged on two trespassing complaints. ==Tenants==