2025 Second quarter IFRS Financial Statements

Rosneft Oil Company

Summary Interim Consolidated Financial Statements (unaudited)

Six months ended June 30, 2025

Rosneft Oil Company

Summary interim consolidated financial statements (unaudited) Six months ended June 30, 2025

Report on Review of the Summary Interim Consolidated Financial Information 3

Summary interim consolidated financial statements (unaudited)

Summary interim consolidated balance sheet 5

Summary interim consolidated statement of profit or loss 6

Summary interim consolidated statement of cash flows 7

Notes to the summary interim consolidated financial statements (unaudited)

1. Basis of preparation of the summary interim consolidated financial statements 8

2. Changes in accounting policies and comparative amounts 9

3. Property, plant and equipment 10

4. Shareholders' equity 10

2

NEW CHALLENGES NEW SOLUTIONS

OOO «IJ,ATP -ayokiTopcxkie ycnyrPi» Pocckici, 115035, MOcxBa

Caooau nuecFtae oa6., 7S Ten.: +7 495 705 9700

*7 495 755 9700

‹Marc: +7 495 755 9704

or H: 1027739707203 M H H: 77O9Z83S52 OKnO:59002827 KfJn: 77O5OlOOl

TSATR - Audit Services LLC Sadovnicheskaya Nab., 75

Moscow, 115035, Russia

Tel: •7 495 705 9700

*7 495 755 9700

Fax: •7 495 755 9701

vvvvv bl.ru

To the Shareholders and the Board of Directors of Rosneft Oil Company

Introduction

We have reviewed the summary interim consolidated financial statements of Rosneft Oil Company and its subsidiaries (hereinafter collectively referred to a "Company"), which comprise the summary interim consolidated balance sheet as at 30 June 2025, the summary interim consolidated statement of profit or loss and summary interim consolidated statement of cash flows for the six-month period then ended, and notes to the summary interim consolidated financial statements (the "summary interim consolidated financial information" hereinafter).

The summary interim consolidated financial information is derived from the Company's interim condensed consolidated financial statements for the three-month and six-month periods ended 30 June 2025, prepared in accordance with IAS 34 Interim Financial Reporting.

Management of Rosneft Oil Company is responsible for the preparation of this summary interim consolidated financial information in accordance with the accounting principles described in

Note 1, "Basis of preparation of the summary interim consolidated financial statements", thereto. Our responsibility is to express a conclusion on this summary interim consolidated financial information based on our review.

Scope of review

We conducted our review in accordance with International Standard on Review Engagements 2410 Review of Interim Financial Information Performed by the Independent

Auditor of the Entity. A review of summary interim consolidated financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with International Standards on Auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Based on our review, nothing has come to our attention that causes us to believe that the accompanying summary interim consolidated financial information is not prepared, in all material respects, in accordance with the accounting principles described in Note 1, "Basis of preparation of the summa ry interim consolidated financial statements", thereto.

NEW CHALLENGES NEW SOLUTIONS

We draw attention to Note 1, "Basis of preparation of the summa ry interim consolidated financial statements", to the summary interim consolidated financial statements, which describes the principles applied in the preparation of this summary interim consolidated financial information. The summa ry interim consolidated financial information does not include all information required to be presented and disclosed in accordance with IAS 34 Interim Flnancial Reporting. Our conclusion is not modified in respect of this matter.

Other matter

We have expressed an unmodified conclusion in respect of the Company's interim condensed consolidated financial statements for the three-month and six-month periods ended 30 June 2025, prepared in accordance with IAS 34 Interim Financial Reporting, in our review report dated 29 August 2025.

Starygina Nataliya Gennadievna

Partner

TSATR - Audit Services Limited Liability Company

29 August 2025

Details of the auditor

Name: TSATR - Audit Services Limited Liability Company

Record made in the State Register of Legal Entities on 5 December 2002, State Registration Number 1027739707203. Address: Russia 115035, Ploscow, Sadovnicheskaya naberezhnaya, 75.

TSATR - Audit Services Limited Liability Company is a member of Self-regulatory organization of auditors Association "Sodruzhestvo". TSATR - Audit Services Limited Liability Company is included in the control copy of the register of auditors and audit organizations, main registration number 12006020327.

Oeta7/r ol' the entity

Name: Rosneft Oil Company

Record made in the State Register of Legal Entities on 12 August 2002, State Registration Number 1027700043502. Address: Russia 115035, Noscow, Sofiyskaya embankment, 26/1.

Rosneft Oil Company

Summary interim consolidated balance sheet

(in billions of Russian rubles)

Rosneft Oil Company

Summary interim consolidated statement of profit or loss

(in billions of Russian rubles)

Revenues and equity share in profits of associates and joint ventures

Notes

Six months ended

June 30, 2025

(unaudited)

Six months ended

June 30, 2024

(unaudited)

Rosneft Oil Company

Summary interim consolidated statement of cash flows

(in billions of Russian rubles)

* Certain amounts for the six months ended June 30, 2024 have been reclassified for compliance with the current period presentation (Note 2).

Rosneft Oil Company

Notes to the summary interim consolidated financial statements (unaudited)

Six months ended June 30, 2025

(all amounts in tables are in billions of Russian rubles, except as noted otherwise)

1. ‌Basis of preparation of the summary interim consolidated financial statements

   These summary interim consolidated financial statements were derived from unaudited interim condensed consolidated financial statements of the Company for the three and six months period ended June 30, 2025, which were prepared in accordance with International Accounting Standard ("IAS") 34 Interim Financial Reporting. The summary interim consolidated financial statements were prepared with a purpose of presentation of consolidated financial position and consolidated financial results of the Company without causing damage to the Company and (or) its partners.

   These summary interim consolidated financial statements consist of:

   • summary interim consolidated balance sheet as of June 30, 2025;

   • summary interim consolidated statement of profit or loss for the three months ended June 30, 2025;

   • summary interim consolidated statement of cash flows for the three months ended June 30, 2025;

   • notes to the summary interim consolidated financial statements.

These summary interim consolidated financial statements for the six months period ended June 30, 2025, contain information facilitating comprehension of the Company's activities by the users and do not disclose all the information presented in unaudited interim condensed consolidated financial statements of the Company for the three and six months period ended June 30, 2025.

Decisions of the management on preparation of the summary interim consolidated financial statements as well as on the range of sensitive information not subject to disclosure were made with consideration of Presidential Decree #903 On the temporary procedure for disclosing and providing information by some Russian business entities dated November 27, 2023.

Interim condensed consolidated financial statements of the Company for the three and six months period ended June 30, 2025, are restricted for full public disclosure in accordance with the Presidential Decree #903 On the temporary procedure for disclosing and providing information by some Russian business entities dated November 27, 2023.

These summary interim consolidated financial statements are intended to summarize and present aggregated information of the consolidated balance sheet, consolidated statement of profit or loss, consolidated statement of cash flows and do not include information about other comprehensive income and on changes in equity.

"Current assets" of the summary interim consolidated balance sheet includes cash and cash equivalents, restricted cash, investments in equity and debt instruments, accounts receivable, bank loans granted, inventories, value added tax, excise and other taxes receivable, prepayments and other current assets.

"Other non-current assets" of the summary interim consolidated balance sheet includes right-of-use assets, intangible assets, investments in equity and debt instruments, investments in associates and joint ventures, bank loans granted, deferred tax assets, goodwill and other non-current non-financial assets.

Rosneft Oil Company

Notes to the summary interim consolidated financial statements (unaudited) (continued)

1. Basis of preparation of the summary interim consolidated financial statements (continued) The basis of preparation and disclosure of these summary interim consolidated financial statements are as follows (continued)

   "Current liabilities" of the summary interim consolidated balance sheet includes accounts payable and accrued liabilities, loans and borrowings and other financial liabilities, income tax liabilities, other tax liabilities, provisions, prepayments on long-term oil and petroleum products supply agreements and other current liabilities.

   "Non-current liabilities" of the summary interim consolidated balance sheet includes loans and borrowings and other financial liabilities, deferred tax liabilities, provisions, prepayments on long-term oil and petroleum products supply agreements and other non-current liabilities.

   "Other equity components" of the summary interim consolidated balance sheet includes treasury shares, additional paid-in capital, reserve for foreign exchange differences on translation of foreign operations, and other funds and reserves.

   "Other costs and expenses" of the summary interim consolidated statement of profit or loss includes the cost of purchased oil, gas, petroleum products, goods for retail and refining costs, general and administrative expenses, transportation costs and other commercial expenses, exploration expenses.

   "Other expenses" of the summary interim consolidated statement of profit or loss includes finance income, finance expenses, other income, other expenses, and foreign exchange differences.

   "Other proceeds from investing activities" of the summary interim consolidated statement of cash flows includes the investments in current and non-current financial instruments, proceeds from current and non- current financial instruments, proceeds from sale of subsidiaries, net of cash disposed, proceeds from sale of property, plant and equipment.

   "Other financing repayment" of the summary interim consolidated statement of cash flows includes repayment of other financial liabilities, interest paid, other financing, dividends paid.

   The summary interim consolidated financial statements for the six months period ended June 30, 2025 were approved and authorized for issue by management of the Company on August 29, 2025.

2. ‌Changes in accounting policies and comparative amounts

   The accounting policies adopted are consistent with those of the previous financial year except for the adoption of amendment to existing standards effective as of January 1, 2025:

   • Amendment to IAS 21 The Effects of Changes in Foreign Exchange Rates named Lack of Exchangeability. The amendment clarify when the currency is not exchangeable into the other currency, the order of estimation of the spot exchange rate when the currency is not exchangeable, and sets the requirements for the related disclosures.

     The amendment mentioned above did not have a material impact on the summary consolidated financial statements.

     Amounts recognized within "Proceeds from loans and borrowings" and "Repayment of loans and borrowings" of the summary interim consolidated statement of cash flows for the six months ended June 30, 2024 were adjusted by RUB 237 billion for compliance with the current period presentation.

     Rosneft Oil Company

     Notes to the summary interim consolidated financial statements (unaudited) (continued)

3. ‌Property, plant and equipment

   Total

   Cost as of January 1, 2025	20,291
   Depreciation, depletion and impairment as of January 1, 2025	(6,649)
   Net book value as of January 1, 2025	13,642
   Prepayments for property, plant and equipment as of January 1, 2025	294
   Total as of January 1, 2025	13,936
   Cost Additions	1,091
   Disposals and other movements	(25)
   Foreign exchange differences	(369)
   Changes in cost of asset retirement (decommissioning) obligations	2
   As of June 30, 2025	20,990
   Depreciation, depletion and impairment Depreciation, depletion charge and impairment	(437)
   Disposals and other movements	12
   Foreign exchange differences	103
   As of June 30, 2025	(6,971)
   Net book value as of June 30, 2025	14,019
   Prepayments for property, plant and equipment as of June 30, 2025	262
   Total as of June 30, 2025	14,281

4. ‌Shareholders' equity

On June 30, 2025 the Annual General Shareholders' Meeting approved dividends on the Company's common shares for 2024 in the amount of RUB 14.68 per share, which comprised RUB 139.4 billion (excluding dividends related to treasury shares).

On June 28, 2024 the Annual General Shareholders' Meeting approved dividends on the Company's common shares for 2023 in the amount of RUB 29.01 per share, which comprised RUB 275.6 billion (excluding dividends related to treasury shares).

PJSC Rosneft Oil Company Legal address:

Russian Federation, 115035, Moscow, Sofiyskaya embankment, 26/1

Mailing address:

Russian Federation, 117997, Moscow, Sofiyskaya embankment, 26/1

Phone:

+7 (499) 517-88-99

Fax:

+7 (499) 517-72-35

E-mail: postman@rosneft.ru

Corporate website: https://www.rosneft.ru (Russian) https://www.rosneft.com (English)