Check the listing for details. Maracaibo Oil Exploration Corp. - 1920's-30's dated Oil Stock Certificate - Mara. Condition: Used. Listed at 20.00 USD. Oil Stock printed by American Bank Note Company. Two male figures at each side of a female. Very attractive vignette!!! The Maracaibo Basin, also known as Lake Maracaibo natural region, Lake Maracaibo depression or Lake Maracaibo Lowlands, is a foreland basin & one of the eight natural regions of Venezuela, found in the northwestern corner of Venezuela in South America. Covering over 36,657 square km, it is a hydrocarbon-rich region that has produced over 30 billion bbl of oil with an estimated 44 billion bbl yet to be recovered. The basin is characterized by a large shallow tidal estuary, Lake Maracaibo, located near its center. The Maracaibo basin has a complex tectonic history that dates back to the Jurassic period with multiple evolution stages. Despite its complexity, these major tectonic stages are well preserved within its stratigraphy. This makes The Maracaibo basin one of the most valuable basins for reconstructing South America's early tectonic history. Read more at https://en.wikipedia.org/wiki/Maracaibo_Basin Item ordered may not be exact piece shown. All original and authentic.