Kosmos Energy, the Dallas-based company with LNG interests in the West African nations of Senegal and Mauritania and a specialist company for offshore Atlantic Margins exploration and production, has made a successful start-up of oil production at the Winterfell development in the Green Canyon area of the US Gulf of Mexico.
The Winterfell joint venture in which Kosmos has a 25.04 working interest, is a phased development with the initial two production wells of the first phase now online and ramping up production.
A third well is currently being drilled and is expected to be online by the end of the third quarter of 2024.
The three initial wells are expected to deliver gross production of around 20,000 barrels of oil equivalent per day.
Growth targets
“The start-up of Winterfell is another significant milestone for Kosmos as we continue to deliver the projects to achieve our growth targets by year-end 2024,” said Kosmos Chairman and Chief Executive Andrew G. Inglis.
The Winterfell success comes as the Kosmos LNG operations in Senegal and Mauritania head towards production, adding to Atlantic Margins output from other projects offshore Ghana and Equatorial Guinea.
“With high margin barrels, low carbon intensity and a quick expected payback, Winterfell has the right characteristics for Kosmos’s portfolio,” CEO Inglis added.
Winterfell is a Miocene-aged field discovered in 2021 in water depth of around 5,400 feet (1,600 meters).
The field has been developed via a 13-mile subsea tieback to the host platform.
Following the successful drilling and completion of the first two wells and subsea hook-up in April 2024, delays in subsequent work resulted in first oil slightly later than initially anticipated.








