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Other information about investments - Principal joint ventures, joint operations and associates (Details) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Var Energi AS |  |
Disclosure of detailed information about investments |  |
Company name | Vår Energi AS |
Registered office | Forus (Norway) |
Country of operation | Norway |
Business segment | Exploration & Production |
% ownership interest | 69.60% | 69.60%
Eni's % of the investment | 69.60% | 69.60%
Saipem SpA |  |
Disclosure of detailed information about investments |  |
Company name | Saipem SpA |
Registered office | San Donato Milanese (MI) (Italy) |
Country of operation | Italy |
Business segment | Other Activities |
% ownership interest | 30.54% |
Eni's % of the investment | 30.99% | 30.99%
Union Fenosa Gas SA |  |
Disclosure of detailed information about investments |  |
Company name | Unión Fenosa Gas SA |
Registered office | Madrid (Spain) |
Country of operation | Spain |
Business segment | Gas & Power |
% ownership interest | 50.00% |
Eni's % of the investment | 50.00% | 50.00%
Cardon IV SA |  |
Disclosure of detailed information about investments |  |
Company name | Cardón IV SA |
Registered office | Caracas (Venezuela) |
Country of operation | Venezuela |
Business segment | Exploration & Production |
% ownership interest | 50.00% |
Eni's % of the investment | 50.00% | 50.00%
Gas Distribution Company of Thessaloniki Thessaly SA |  |
Disclosure of detailed information about investments |  |
Company name | Gas Distribution Company of Thessaloniki - Thessaly SA |
Registered office | Ampelokipi- Menemeni (Greece) |
Country of operation | Greece |
Business segment | Gas & Power |
% ownership interest | 49.00% |
Eni's % of the investment | 49.00% | 49.00%
Abu Dhabi Oil Refining Co |  |
Disclosure of detailed information about investments |  |
Company name | Abu Dhabi Oil Refining Co (Takreer) |
Registered office | Abu Dhabi (United Arab Emirates) |
Country of operation | United Arab Emirates |
Business segment | Refining & Marketing |
% ownership interest | 20.00% |
Eni's % of the investment | 20.00% |
Angola LNG Ltd |  |
Disclosure of detailed information about investments |  |
Company name | Angola LNG Ltd |
Registered office | Hamilton (Bermuda) |
Country of operation | Angola |
Business segment | Exploration & Production |
% ownership interest | 13.60% |
Eni's % of the investment | 13.60% | 13.60%
Coral FLNG SA |  |
Disclosure of detailed information about investments |  |
Company name | Coral FLNG SA |
Registered office | Maputo (Mozambique) |
Country of operation | Mozambique |
Business segment | Exploration & Production |
% ownership interest | 25.00% |
Eni's % of the investment | 25.00% | 25.00%
Mozambique Rovuma Venture SpA |  |
Disclosure of detailed information about investments |  |
Company name | Mozambique Rovuma Venture SpA |
Registered office | San Donato Milanese (MI) (Italy) |
Country of operation | Mozambique |
Business segment | Exploration & Production |
% ownership interest | 35.71% |
Eni's % of the investment | 35.71% |
Raffineria di Milazzo ScpA |  |
Disclosure of detailed information about investments |  |
Company name | Raffineria di Milazzo ScpA |
Registered office | Milazzo (ME) (Italy) |
Country of operation | Italy |
Business segment | Refining & Marketing |
% ownership interest | 50.00% |
Eni's % of the investment | 50.00% |
GreenStream BV |  |
Disclosure of detailed information about investments |  |
Company name | GreenStream BV |
Registered office | Amsterdam (Netherlands) |
Country of operation | Libya |
Business segment | Gas & Power |
% ownership interest | 50.00% |
Eni's % of the investment | 50.00% |
Blue Stream Pipeline Co BV |  |
Disclosure of detailed information about investments |  |
Company name | Blue Stream Pipeline Co BV |
Registered office | Amsterdam (Netherlands) |
Country of operation | Russia |
Business segment | Gas & Power |
% ownership interest | 74.62% |
Eni's % of the investment | 74.62% |

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