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West Africa: Building Success Into Regional Growth

Our work in the Republic of Equatorial Guinea began as a non-operating partner in the Alba field in the early '90s, giving us a longer history in the country than any other international energy company. We also have a discovery offshore Cameroon and are exploring offshore Gabon.

In 2005, we made our first operated discovery in the Alen field, located in the Douala Basin offshore Equatorial Guinea. We repeated this success with discovery of multiple oil and gas-condensate reservoirs. We’ve since converted two discoveries into producing fields.

We brought Aseng, the first floating storage and offloading vessel (FPSO) in the Douala Basin, online in 2011. 

This was quickly followed in 2013 by the Alen platform, a condensate recovery and gas reinjection facility. The gas reinjection system minimizes the need for flaring and maximizes condensate production from the reservoir.

In July 2016, we and our partner commenced production from the Alba B3 compression platform, which will enhance full recovery in the Alba field. 

We are also a partner in the Ampco Methanol Production Company (AMPCO) methanol plant, the first gas monetization project in Equatorial Guinea, and the Alba liquefied petroleum gas (LPG) processing plant.

We are currently evaluating additional 3-D seismic data in the areas where we made our discoveries. The results could lead to new exploration or additional development. 

Alen Gas Monetization

In April 2019, we made a final investment decision on the Alen gas monetization project with startup planned for the first half of 2021. Gas from the Alen field will be processed through existing facilities on Bioko Island. The Alen development is the first step towards creating an offshore natural gas hub in Equatorial Guinea, which will open the potential for future monetization of additional discovered resources through existing infrastructure. Noble Energy has discovered 3 trillion cubic feet of gross natural gas resources in the Douala Basin, which positions us well for LNG sales exposure over the coming decade. Learn more.

Yoyo-Yolanda Condensate Gas Field

The governments of Equatorial Guinea and Cameroon signed a memorandum of understanding (MOU) confirming the Yolanda discovery in Block I offshore Equatorial Guinea and the Yoyo discovery offshore Cameroon are in a contiguous reservoir that will be jointly developed as the Yoyo-Yolanda condensate gas field with Noble Energy as the operator.


We hold a 60 percent operated working interest in the 671,000-acre Doukou Dak block in the South Gabon Basin, where we acquired and are processing a 2,500 square kilometer 3-D seismic survey. We have identified a large pre-salt Cretaceous four-way structural trap with multiple reservoir targets.

NBL Operations West Africa
Equatorial Guinea & Cameroon
Net Acreage (YE 2018) 316,000
Sales volumes (YE 2018) 51 MBoe/d
(all in EG)
Total Proved Reserves (YE 2018) 97 MMboe
Productive wells (gross at YE 2016) 28

For the latest West Africa news, please see the most recent presentation on the Investor Events page. 

For information and posting on employment with Noble Energy in West Africa, click here.