Exploration & Production

Eni has been present in the United States since 1968. Activities are performed in the Gulf of Mexico, Alaska, and in Texas onshore, over a developed and undeveloped acreage of 2,105 square kilometers (1,052 square kilometers net to Eni). In 2017, Eni’s oil&gas production was 77 kboe/d. Exploration and production activities in the United States are regulated by concessions.

Gulf of Mexico

Eni holds interests in 75 exploration and production blocks in the shallow and deep offshore of the Gulf of Mexico, of which 35 are operated by Eni.
The main operated fields are Allegheny and Appaloosa (Eni’s interest 100%), Pegasus (Eni’s interest 85%), Longhorn, Devils Towers and Triton (Eni’s interest 75%). Eni also holds interests in Europa (Eni’s interest 32%), Hadrian South (Eni’s interest 30%), Medusa (Eni’s interest 25%), Lucius (Eni’s interest 8.5%), K2 (Eni’s interest 13.4%), Frontrunner (Eni’s interest 37.5%) and Heidelberg (Eni’s interest 12.5%) fields. In 2017, the FID  (Final Investment Decision)  of the Lucius Subsequent Development project was sanctioned. The development activities provide for the drilling and completion of three subsea production wells and linkage to the existing facilities in the area. Start-up is expected in 2019 with a production plateau of 2 kboe/d net to Eni.


Production comes from the Alliance area (Eni’s interest 27.5%), in the Fort Worth Basin. This asset includes unconventional gas reserves (shale gas). In 2017, Eni’s production amounted to more than 4 kboe/d.


Eni holds interests in 42 exploration and development blocks in Alaska, with interests ranging from 30% to 100%; Eni is the operator in 26 of these blocks.
The main fields are Nikaitchuq (Eni operator with a 100% interest) and Oooguruk (Eni’s interest 30%) fields with a 2017 overall net production of approximately 20 kbbl/d.

Last updated on 25/05/18