It currently stands as the 3rd-tallest International Style skyscraper in the city, behind the BOK Tower and the Bank of America Center.

The building, with its black and white grid exterior floodlighted at night, is a Tulsa landmark.

[4] In 1980, Cities Service commenced a new 52-story headquarters in downtown Tulsa that was intended to become Oklahoma's tallest building.

The planned replacement tower was topped off at 17 stories and now serves as headquarters for ONEOK, Inc.[5] Over time, Occidental also reduced its occupancy at 110 West 7th, leaving it underutilized.

[1] Occidental Petroleum Corporation (Oxy), a California-based oil and gas exploration and production company, has Oklahoma offices in the building.