S-OIL, an oil and natural gas company, has its headquarters near Gongdeok Station and Gongdeok Sageori in Seoul. On the 23rd floor, Tap Cloud 23 serves a lunch semi-buffet and a dinner with views of the Seoul cityscape. The first floor holds a Gud Oil goods shop and free vending machines, and bidets are installed in each lobby restroom stall. The coffee discount does not apply without an employee card.