Longhorn MC 503 is a producing conventional gas field located in deepwater in the US and is operated by Eni Us Operating. The field is located in block Mississippi Canyon 502, with water depth of 2,648 feet.

Field participation details

The field is owned by Eni and China National Offshore Oil.

Production from Longhorn MC 503

The Longhorn MC 503 conventional gas field recovered 93.18% of its total recoverable reserves, with peak production in 2011. The peak production was approximately 1.53 thousand bpd of crude oil and condensate and 119 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2027.

Remaining recoverable reserves

The field is expected to recover 3.11 Mmboe, comprised of 0.14 Mmbbl of crude oil & condensate and 17.83 bcf of natural gas reserves.


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.