BOK Tower (originally One Williams Center) was constructed in 1976 for The Williams Companies Inc. a petroleum producer in Tulsa, Oklahoma. John Williams, the CEO at the time, liked the look of the recently completed World Trade Center so much that he hired the original architect to build essentially a half-scale version of WTC Tower 1.
The lobby even has marble walls and wall hanginga similar to the old World Trade Center.
Take alone the either of the twin towers were a perfectly boring tower that shouldn’t exist, the hide that fact by making two of them so it’s not surprising that is is a cookie cutter design.