There is a long-standing territorial dispute between the two countries over the area of Orinoco basin.
An oil refinery is planned be built in China to handle Venezuelan heavy crude from the Orinoco basin.
Caroní River (Venezuela), is one of the largest rivers of the Orinoco basin.
Additionally, a possibly undescribed species is found in the Orinoco Basin in Venezuela.
By a.d. 300, a new and larger wave of Amerindians from the Orinoco basin settled on islands throughout the Caribbean.
The Ventuari River is a river in the Orinoco basin in Venezuela.
Pseudancistrus sidereus is a species of armored catfish known only from the upper Orinoco basin in Amazonas state, Venezuela.
An undescribed species of Lithogenes is known from the Orinoco basin of the Guiana Shield.
The llanos of the Orinoco basin of Venezuela and Colombia are grass savannas, some parts of it get flooded every year.
The Caroni basin covers an area of 95.000 km and is part of the Orinoco basin, the most important river of Venezuela.