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Other information about investments - Joint arrangements and associates - Exploration & Production (Details) | 12 Months Ended |  |
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Dec. 31, 2020 KWD (د.ك) | Dec. 31, 2020 AED (د.إ) | Dec. 31, 2020 KZT (₸) | Dec. 31, 2020 GBP (£) | Dec. 31, 2020 MZN (MT) | Dec. 31, 2020 XAF ( ) | Dec. 31, 2020 TND (د.ت) | Dec. 31, 2020 NOK (kr) | Dec. 31, 2020 EGP (ج.م.) | Dec. 31, 2020 VEF ( ) | Dec. 31, 2020 USD ($) | Dec. 31, 2020 EUR (€) | Dec. 31, 2019 EUR (€)
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Share capital | € |  |  |  |  |  |  |  |  |  |  |  | € 4,005,000,000 | € 4,005,000,000
ENI SpA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Share capital | € |  |  |  |  |  |  |  |  |  |  |  | 4,005,358,876 | € 4,005,358,876
Exploration & Production | Italy | Joint Arrangement Or Associate One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Mozambique Rovuma Venture SpA (†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | San Donato Milanese (MI) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Mozambique |  |  |  |  |  |  |  |  |  |  |  |
Share capital | € |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |
% Equity ratio | 35.71% |  |  |  |  |  |  |  |  |  |  |  |
Consolidation or valuation method | J.O. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Italy | Joint Arrangement Or Associate One [Member] | ENI SpA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 35.71% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Italy | Joint Arrangement Or Associate One [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 64.29% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Agiba Petroleum Co (†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | ج.م. 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Two [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Two [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Three [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Angola LNG Ltd |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Hamilton (Bermuda) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Angola |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | $ 9,952,000,000 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Three [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 86.40% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Three [Member] | Eni Angola Prod BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 13.60% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Four [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Ashrafi Island Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Four [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Four [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Five [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Barentsmorneftegaz Sàrl(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Luxembourg (Luxembourg) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Russia |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | 20,000 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Five [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 66.67% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Five [Member] | Eni Energy Russia BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 33.33% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Six [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Cabo Delgado Gas Development Limitada(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Maputo (Mozambique) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Mozambique |  |  |  |  |  |  |  |  |  |  |  |
Share capital | MT |  |  |  |  | MT 2,500,000 |  |  |  |  |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Six [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Six [Member] | Eni MozamLNG HBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Seven [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Cardón IV SA(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Caracas (Venezuela) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Venezuela |  |  |  |  |  |  |  |  |  |  |  |
Share capital | |  |  |  |  |  |  |  |  |  | 172.10 |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Seven [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Seven [Member] | Eni Venezuela BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eight [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Compañia Agua Plana SA |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Caracas (Venezuela) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Venezuela |  |  |  |  |  |  |  |  |  |  |  |
Share capital | |  |  |  |  |  |  |  |  |  | 0.001 |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eight [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 74.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eight [Member] | Eni Venezuela BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 26.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Nine [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Coral FLNG SA |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Maputo (Mozambique) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Mozambique |  |  |  |  |  |  |  |  |  |  |  |
Share capital | MT |  |  |  |  | 100,000,000 |  |  |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Nine [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Nine [Member] | Eni MozamLNG HBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Ten [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Coral South FLNG DMCC |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Dubai (United Arab Emirates) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | United Arab Emirates |  |  |  |  |  |  |  |  |  |  |  |
Share capital | د.إ |  | د.إ 500,000 |  |  |  |  |  |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Ten [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Ten [Member] | Eni MozamLNG HBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eleven [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | East Delta Gas Co (in liquidation) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eleven [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 62.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eleven [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 37.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twelve [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | East Kanayis Petroleum Co(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twelve [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twelve [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirteen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | East Obaiyed Petroleum Co(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirteen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirteen [Member] | Ieoc SpA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fourteen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | El Temsah Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fourteen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fourteen [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifteen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | El-Fayrouz Petroleum Co(†) (in liquidation) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifteen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifteen [Member] | Ieoc Exploration BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Sixteen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Fedynskmorneftegaz Sàrl(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Luxembourg (Luxembourg) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Russia |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | 20,000 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Sixteen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 66.67% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Sixteen [Member] | Eni Energy Russia BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 33.33% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Seven teen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Isatay Operating Company Llp(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Nur-Sultan (Kazakhstan) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Kazakhstan |  |  |  |  |  |  |  |  |  |  |  |
Share capital | ₸ |  |  | ₸ 400,000 |  |  |  |  |  |  |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Seven teen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Seven teen [Member] | Eni Isatay BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eight teen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Karachaganak Petroleum Operating BV |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Amsterdam (Netherlands) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Kazakhstan |  |  |  |  |  |  |  |  |  |  |  |
Share capital | € |  |  |  |  |  |  |  |  |  |  |  | 20,000 |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eight teen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 70.75% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Eight teen [Member] | Agip KarachagBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 29.25% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Nine teen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Karachaganak Project Development Ltd (KPD) (in liquidation) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Reading, Berkshire (United Kingdom) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | United Kingdom |  |  |  |  |  |  |  |  |  |  |  |
Share capital | £ |  |  |  | £ 100 |  |  |  |  |  |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Nine teen [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 62.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Nine teen [Member] | Agip KarachagBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 38.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Khaleej Petroleum Co Wll |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Safat (Kuwait) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Kuwait |  |  |  |  |  |  |  |  |  |  |  |
Share capital | د.ك | د.ك 250,000 |  |  |  |  |  |  |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 51.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty [Member] | Eni Middle E Ltd |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 49.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty one [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Liberty National Development Co Llc |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Wilmington (USA) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | USA |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | 0 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty one [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 67.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty one [Member] | Eni Oil & Gas Inc |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 32.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Mediterranean Gas Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty two [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty two [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty three [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Meleiha Petroleum Company(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty three [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty three [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty four [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Mellitah Oil & Gas BV(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Amsterdam (Netherlands) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Libya |  |  |  |  |  |  |  |  |  |  |  |
Share capital | € |  |  |  |  |  |  |  |  |  |  |  | € 20,000 |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty four [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty four [Member] | Eni North Africa BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty five [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Nile Delta Oil Co Nidoco |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty five [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 62.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty five [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 37.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty six [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Norpipe Terminal Holdco Ltd |  |  |  |  |  |  |  |  |  |  |  |
Registered office | London (United Kingdom) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Norway |  |  |  |  |  |  |  |  |  |  |  |
Share capital | £ |  |  |  | £ 55.69 |  |  |  |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty six [Member] | ENI SpA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 14.20% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty six [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 85.80% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty seven [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | North Bardawil Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty seven [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 70.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty seven [Member] | Ieoc Exploration BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 30.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty eight [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | North El Burg Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty eight [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty eight [Member] | Ieoc SpA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty nine [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Petrobel Belayim Petroleum Co(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty nine [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Twenty nine [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | PetroBicentenario SA(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Caracas (Venezuela) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Venezuela |  |  |  |  |  |  |  |  |  |  |  |
Share capital | |  |  |  |  |  |  |  |  |  | 3,790 |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 60.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty [Member] | Eni Lasmo Plc |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 40.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty one [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | PetroJunín SA(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Caracas (Venezuela) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Venezuela |  |  |  |  |  |  |  |  |  |  |  |
Share capital | |  |  |  |  |  |  |  |  |  | 24,021 |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty one [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 60.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty one [Member] | Eni Lasmo Plc |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 40.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | PetroSucre SA |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Caracas (Venezuela) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Venezuela |  |  |  |  |  |  |  |  |  |  |  |
Share capital | |  |  |  |  |  |  |  |  |  | 2,203 |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty two [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 74.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty two [Member] | Eni Venezuela BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 26.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty three [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Pharaonic Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty three [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty three [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty four [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Point Resources FPSO AS |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Sandnes (Norway) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Norway |  |  |  |  |  |  |  |  |  |  |  |
Share capital | kr |  |  |  |  |  |  |  | kr 150,100,000 |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty four [Member] | PR FPSO Holding AS |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty five [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Point Resources FPSO Holding AS |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Sandnes (Norway) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Norway |  |  |  |  |  |  |  |  |  |  |  |
Share capital | kr |  |  |  |  |  |  |  | 60,000 |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty five [Member] | Var Energi AS |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty six [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Port Said Petroleum Co (†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty six [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty six [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty seven [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | PR Jotun DA |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Sandnes (Norway) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Norway |  |  |  |  |  |  |  |  |  |  |  |
Share capital | kr |  |  |  |  |  |  |  | 0 |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty seven [Member] | PR FPSO Holding AS |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty seven [Member] | PR FPSO AS |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 95.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty eight [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Raml Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty eight [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 77.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty eight [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 22.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty nine [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Ras Qattara Petroleum Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty nine [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 62.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Thirty nine [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 37.50% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Rovuma Basin LNG Land Limitada(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Maputo (Mozambique) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Mozambique |  |  |  |  |  |  |  |  |  |  |  |
Share capital | MT |  |  |  |  | 140,000 |  |  |  |  |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 66.67% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty [Member] | Mozamb Rov V SpA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 33.33% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty one [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Rovuma LNG Investments (DIFC) Ltd |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Dubai (United Arab Emirates) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Mozambique |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | 50,000 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty one [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty one [Member] | Eni MozamLNG HBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Rovuma LNG SA |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Maputo (Mozambique) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Mozambique |  |  |  |  |  |  |  |  |  |  |  |
Share capital | MT |  |  |  |  | MT 100,000,000 |  |  |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty two [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty two [Member] | Eni MozamLNG HBV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty three [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Shorouk Petroleum Company |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty three [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty three [Member] | Ieoc Production BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty four [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Société Centrale Electrique du Congo SA |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Pointe-Noire (Republic of the Congo) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Republic of the Congo |  |  |  |  |  |  |  |  |  |  |  |
Share capital | |  |  |  |  |  | 44,732,000,000 |  |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty four [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 80.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty four [Member] | Eni Congo SA |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 20.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty five [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Société Italo Tunisienne d'Exploitation Pétrolière SA(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Tunisi (Tunisia) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Tunisia |  |  |  |  |  |  |  |  |  |  |  |
Share capital | د.ت |  |  |  |  |  |  | د.ت 5,000,000 |  |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty five [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty five [Member] | Eni Tunisia BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty six [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Sodeps - Société de Developpement et d'Exploitation du Permis du Sud SA(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Tunisi (Tunisia) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Tunisia |  |  |  |  |  |  |  |  |  |  |  |
Share capital | د.ت |  |  |  |  |  |  | د.ت 100,000 |  |  |  |  |  |
Consolidation or valuation method | Co. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty six [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty six [Member] | Eni Tunisia BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty seven [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Thekah Petroleum Co (in liquidation) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | 20,000 |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty seven [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 75.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty seven [Member] | Ieoc Exploration BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty eight [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | United Gas Derivatives Co |  |  |  |  |  |  |  |  |  |  |  |
Registered office | New Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | 153,000,000 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty eight [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 66.67% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty eight [Member] | Eni International BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 33.33% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty nine [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Vår Energi AS(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Forus (Norway) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Norway |  |  |  |  |  |  |  |  |  |  |  |
Share capital | kr |  |  |  |  |  |  |  | 399,425,000 |  |  |  |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty nine [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 30.15% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Forty nine [Member] | Eni International BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 69.85% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Vår Energi Marine AS |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Sandnes (Norway) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Norway |  |  |  |  |  |  |  |  |  |  |  |
Share capital | kr |  |  |  |  |  |  |  | kr 61,000,000 |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty [Member] | Var Energi AS |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty one [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | VIC CBM Ltd(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | London (United Kingdom) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Indonesia |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | 52,315,912 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty one [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty one [Member] | Eni Lasmo Plc |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | Virginia Indonesia Co CBM Ltd(†) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | London (United Kingdom) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Indonesia |  |  |  |  |  |  |  |  |  |  |  |
Share capital | $ |  |  |  |  |  |  |  |  |  |  | $ 25,631,640 |  |
Consolidation or valuation method | Eq. |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty two [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty two [Member] | Eni Lasmo Plc |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty three [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
Company name | West Ashrafi Petroleum Co(†) (in liquidation) |  |  |  |  |  |  |  |  |  |  |  |
Registered office | Cairo (Egypt) |  |  |  |  |  |  |  |  |  |  |  |
Country of operation | Egypt |  |  |  |  |  |  |  |  |  |  |  |
Share capital |  |  |  |  |  |  |  |  | ج.م. 20,000 |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty three [Member] | Third parties |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |
Exploration & Production | Foreign (outside Italy) | Joint Arrangement Or Associate Fifty three [Member] | Ieoc Exploration BV |  |  |  |  |  |  |  |  |  |  |  |  |
Joint arrangements and associates |  |  |  |  |  |  |  |  |  |  |  |  |
% Ownership | 50.00% |  |  |  |  |  |  |  |  |  |  |  |

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