Erha is a producing conventional oil field located in deepwater in Nigeria and is operated by Esso Exploration and Production Nigeria . The field is located in block OML 133 (OPL 209P), with water depth of 3,960 feet.

Field participation details

The field is owned by Shell and Exxon Mobil.

Production from Erha

The Erha conventional oil field recovered 84.75% of its total recoverable reserves, with peak production in 2007. The peak production was approximately 203.66 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2035. The field currently accounts for approximately 2% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 132.16 Mmboe, comprised of 132.16 Mmbbl of crude oil & condensate. Erha conventional oil field reserves accounts 0.03% 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.