The history of the city of Barrancabermeja is inextricably linked to its unique geographical location and natural wealth. Long before the arrival of Europeans, indigenous settlements were located on these lands along the banks of the Magdalena River. The first mention of the area in European chronicles dates back to 1536, when the Spanish conquistador Gonzalo Jiménez de Quesada reached this point during his expedition deep into the territory of modern-day Colombia. Struck by the reddish hue of the coastal cliffs, he named this place Barrancabermeja, which translates as "Crimson Ravines". For several centuries, the settlement remained a modest transit point on the country's main waterway.
A key factor that determined the city's destiny was its location on the banks of the Magdalena River, which historically served as the main trade and transport corridor connecting the Caribbean coast with the interior regions. However, the real turning point in history was the discovery of rich oil deposits in 1921. This event radically changed the status and economy of Barrancabermeja, transforming it from a small river port into a strategically important industrial centre.
With the discovery of "black gold", rapid economic growth began. The American company Tropical Oil Company launched active drilling operations for the first wells, which attracted labour and investment to the region. By 1922, the fast-growing settlement officially received city status. The economic significance of Barrancabermeja was finally consolidated in 1951 with the construction of the country's largest oil refinery, which later came under the management of the national company Ecopetrol. This defined the city's profile for decades to come, giving it the unofficial title of the "Oil Capital of Colombia".