First oil flows from GoM Winterfell subsea tieback

July 3, 2024
Beacon Offshore Energy has produced first oil from Phase 1 of the Winterfell subsea development in the Green Canyon area of the US Gulf of Mexico. 

Beacon Offshore Energy has produced first oil from Phase 1 of the Winterfell subsea development in the Green Canyon area of the US Gulf of Mexico. 

According to partner Kosmos Energy, both the initial wells are online with production ramping up. The third well, currently drilling, should go online by the end of the current quarter.

Production should then rise to about 20,000 boe/d, with two more wells to follow. Phase 1 is designed to recover about 100 MMboe, Kosmos added, with more to come from subsequent phases.

Chairman and CEO Andrew G. Inglis said Winterfell provides “high margin barrels, low-carbon intensity and a quick expected payback…Kosmos is eager to continue developing the Greater Winterfell area, which we believe has significant future upside potential.”

The field was discovered in a Miocene interval in 2021 in 5,400 ft (~1,600 m) of water, and it produces via a 13-mile subsea tieback to the Heidelberg spar platform. The Winterfell unit covers Green Canyon blocks 899, 900, 943, 944, 987 and 988. Kosmos sees follow-on opportunities in adjacent blocks where it also has interests.

Other partners in the Winterfell unit are Westlawn Americas Offshore, Red Willow, Alta Mar Energy, and CSL Exploration.

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