One Shell Plaza (OSP) is a 50-story, 218 m (715 ft) skyscraper at 910 Louisiana Street in Downtown Houston, Texas.

[5] The $80 million in major renovations included an updated lobby and plaza, elevator modernization, upgrades to the buildings EMP systems, new lighting, and ADA modifications.

[9][10][11][12] Baker Botts, one of the largest law firms in Houston, has been a tenant in the building since it opened in 1971.

The mast supported 1971 start up channel 26 KVRL (later KDOG, now KRIV) and a mast that simultaneously radiated signals for eight FM stations KYND (then 92.5, now KKBQ on 92.9 MHz), 93.7 KRLY (now KQBT), 95.7 KIKK-FM (now KKHH), 99.1 KODA, 100.3 KILT-FM, 101.1 KLOL, 102.1 KLYX (now KMJQ), and 104.1 KRBE.

The combiner and antenna was supplied by Electronic Research Inc. One Shell was used until the completion of the then Texas Commerce Tower and Allied Bank Plaza in 1982–1983, creating a skyscraper canyon that causes multipath distortion, and necessitated the move to the Houston antenna farm in Missouri City.