Llano is a producing conventional oil field located in deepwater in the US and is operated by Shell Gulf of Mexico. The field is located in block Garden Banks 385 and Garden Banks 386, with water depth of 2,663 feet.

Field participation details

The field is owned by Shell, Exxon Mobil and Hess.

Production from Llano

The Llano conventional oil field recovered 80.65% of its total recoverable reserves, with peak production in 2005. The peak production was approximately 23.36 thousand bpd of crude oil and condensate and 54 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2030.

Remaining recoverable reserves

The field is expected to recover 28.02 Mmboe, comprised of 7.09 Mmbbl of crude oil & condensate and 125.55 bcf of natural gas reserves. Llano conventional oil field reserves accounts 0.01% of total remaining reserves of producing conventional oil fields globally.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.