Eni's segment information is determined on the basis of the operating segments whose results are periodically reviewed by the Chief Operating Decision Maker (the CEO) for performance evaluation and resource allocation decisions.

For financial reporting purposes, consistent with applicable accounting standards, management has considered that the decision-making processes for resource allocation and the CEO's assessment of financial/industrial performance are conducted at a lower level of aggregation than the groupings described. Therefore, in compliance with the provisions of IFRS 8, which regulates the segment reporting, Eni’s reportable segments as of December 31, 2025, have been defined as follows considering the operating segments that flow into the three groupings:

 Exploration & Production: exploration, development and production of crude oil, condensates and natural gas. The business also engages in oil and products trading activities, designed to perform supply-balancing transactions on the market for refining and stabilize or hedge commercial margins.

 Global Gas & LNG Portfolio (GGP) and Power: wholesale supply and marketing of natural gas via pipeline, international transport activities, and the purchase and marketing of equity and third-party LNG. It includes gas trading activities finalized to hedging and stabilizing commercial margins, as well as optimizing the gas asset portfolio. The results of the Power business operating which involves the generation and wholesale of electricity from thermoelectric plants, which offers similar economic returns given the similar industrial dynamics related to gas and electricity demand have been included in this reportable segment. It includes trading of CO2 emission certificates and forward electricity sales for the purposes of hedging and optimizing margins.

 Refining and Chemicals: processing crude oil for the production of conventional fuels, carried out by the "Refining" operating segment, and the production of petroleum-based chemicals, carried out by the subsidiary Versalis and its subsidiaries. These activities have been combined into a single reportable segment because they offer similar economic returns, exposure to common market dynamics, and common industrial process structures. Versalis is active in the production of bioplastics through its subsidiary Novamont and in compounding chemistry.

 Enilive: engages in the manufacturing of biofuels from renewable raw materials and in retail marketing activities of traditional and biofuels through an extensive network of refueling outlets, also providing non-fuel products and services to drivers with a view to sustainable mobility. It also engages in wholesale fuels, bitumen and lubricants.

 Plenitude: engages in the retail sales of gas, electricity and related services, production and wholesale of electricity from renewable energy plants, and is also building and managing a network of charging points for electric vehicles.

 Corporate and Other activities: includes the main business support functions, in particular holding, central treasury, IT, human resources, real estate services, captive insurance activities, research and development, new technologies, business digitalization and the environmental remediation activity managed by the subsidiary Eni Rewind. The segment also includes activities related to CCUS, agri-business, forest conservation and bioenergy production projects, currently under development.

Segment information presented to the CEO (the Chief Operating Decision Maker, ex IFRS 8) includes: revenues, operating profit and directly attributable assets and liabilities.

Segment Information

(€ million)	Exploration & Production	Global Gas & LNG Portfolio and Power	Refining and Chemicals	Enilive	Plenitude	Total reportable segments	Corporate and Other activities	Adjustments of intragroup profits	Total
2025
Sales from operations including intersegment sales	50,367	17,120	18,179	19,120	10,168	114,954
- less: intersegment sales	(13,258)	(4,018)	(12,956)	(2,783)	(50)	(33,065)
Sales from operations	37,109	13,102	5,223	16,337	10,118	81,889	262		82,151
Operating profit	6,302	1,770	(2,485)	499	153	6,239	(1,499)	270	5,010
Net provisions for contingencies	(335)	93	(346)	(42)	(43)	(673)	(491)	47	(1,117)
Depreciation and amortization	(6,061)	(279)	(146)	(294)	(451)	(7,231)	(153)	35	(7,349)
Impairments of tangible and intangible assets and right-of-use assets	(1,135)	(17)	(482)	(60)	(7)	(1,701)	(96)		(1,797)
Reversals of tangible and intangible assets and right-of-use assets	54	35	31	60		180	35		215
Write-off of tangible and intangible assets	(30)		(1)		(2)	(33)			(33)
Share of profit (loss) of equity-accounted investments	1,116	32	120	(53)	(33)	1,182	(21)		1,161
Identifiable assets (a)	60,407	4,988	6,377	6,117	13,622	91,511	2,630	(253)	93,888
Unallocated assets (b)									43,181
Equity-accounted investments	7,562	417	2,354	796	1,139	12,268	887		13,155
Identifiable liabilities (a)	19,934	4,691	4,153	3,303	5,490	37,571	5,239	(90)	42,720
Unallocated liabilities (b)									41,562
Capital expenditure in tangible and intangible assets	6,678	109	663	468	764	8,682	587	(40)	9,229
2024
Sales from operations including intersegment sales	54,440	18,876	21,210	21,139	10,179	125,844
- less: intersegment sales	(15,565)	(3,815)	(15,329)	(2,469)	(55)	(37,233)
Sales from operations	38,875	15,061	5,881	18,670	10,124	88,611	186		88,797
Operating profit	6,715	(909)	(1,681)	282	1,307	5,714	(371)	(105)	5,238
Net provisions for contingencies	(282)	(11)	(478)	(48)	(81)	(900)	(484)	(13)	(1,397)
Depreciation and amortization	(6,353)	(267)	(161)	(284)	(424)	(7,489)	(144)	33	(7,600)
Impairments of tangible and intangible assets and right-of-use assets	(2,385)	(195)	(458)	(117)	(1)	(3,156)	(51)		(3,207)
Reversals of tangible and intangible assets and right-of-use assets	182	94	3		5	284	23		307
Write-off of tangible and intangible assets	(576)				(3)	(579)	(1)		(580)
Share of profit (loss) of equity-accounted investments	904	44	73	(43)	(47)	931	(65)		866
Identifiable assets (a)	67,572	7,421	7,228	5,893	13,588	101,702	2,712	(457)	103,957
Unallocated assets (b)									42,982
Equity-accounted investments	8,348	488	2,621	899	1,019	13,375	775		14,150
Identifiable liabilities (a)	20,627	7,230	4,253	2,995	5,883	40,988	4,881	(49)	45,820
Unallocated liabilities (b)									45,471
Capital expenditure in tangible and intangible assets	6,055	110	632	416	887	8,100	408	(23)	8,485
2023
Sales from operations including intersegment sales	55,773	24,168	23,061	21,780	11,102	135,884
- less: intersegment sales	(17,812)	(4,700)	(16,873)	(2,903)	(62)	(42,350)
Sales from operations	37,961	19,468	6,188	18,877	11,040	93,534	183		93,717
Operating profit	8,693	2,626	(2,121)	585	(659)	9,124	(948)	81	8,257
Net provisions for contingencies	(354)	(206)	(352)	(33)	(73)	(1,018)	(339)	(12)	(1,369)
Depreciation and amortization	(6,271)	(295)	(142)	(261)	(404)	(7,373)	(140)	34	(7,479)
Impairments of tangible and intangible assets and right-of-use assets	(1,419)	(14)	(732)	(38)	(7)	(2,210)	(52)		(2,262)
Reversals of tangible and intangible assets	376	52	6			434	26		460
Write-off of tangible and intangible assets	(531)				(5)	(536)	1		(535)
Share of profit (loss) of equity-accounted investments	1,012	49	381	(38)	(55)	1,349	(13)		1,336
Identifiable assets (a)	64,504	7,688	7,186	6,081	12,692	98,151	1,891	(378)	99,664
Unallocated assets (b)									42,942
Equity-accounted investments	6,780	534	2,724	858	664	11,560	1,070		12,630
Identifiable liabilities (a)	21,461	6,637	3,910	2,900	5,436	40,344	4,578	(56)	44,866
Unallocated liabilities (b)									44,096
Capital expenditure in tangible and intangible assets	7,135	119	556	428	636	8,874	360	(19)	9,215

(a) Include assets/liabilities directly associated with the generation of operating profit. Does not include financial assets and liabilities, investments, income tax assets and liabilities.

(b) Include assets/liabilities not directly associated with the generation of operating profit.