The Margarita gas field is a

natural gas field A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence ...

located in the

Gran Chaco Province Gran Chaco is a province in the eastern parts of the Bolivian department Tarija. The province voted to become an autonomous region on 6 December 2009. Location ''Gran Chaco'' province is one of six provinces in the Tarija Department. It is loc ...

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

. Discovered in 1998, it was developed by

Repsol S.A. Repsol S.A.
El Nuevo Herald, 2012-05-31Originally an init ...

, determining it to have initial total

proven reserves Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil reserves, natural gas reserves, and coal reserves. It is defined as the " antity of energy sources estimated with reasonabl ...

of the Margarita gas field are around 13 trillion ft³ (371 km³). It began production of

natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbo ...

and condensates in 2004, with a production rate of around 210 million ft³/day (6×10⁵ m³).

References

Natural gas fields in Bolivia {{gasfield-stub