Reserves Report

7 May 2020

Tatneft Group's total proved reserves of crude oil and condensate at year-end 2019 amounted to 6.7 billion barrels or 940 million tonnes

Based on the audit by an independent oil and gas consulting firm Miller & Lents, Ltd. net recoverable oil and gas reserves of Tatneft in accordance with the standards of the Petroleum Resources Management System prepared by the Oil and Gas Reserves Committee of the Society of Petroleum Engineers (SPE-PRMS) as of 31 December 2019, assuming full economic life of the fields and constant prices, were:

Reserves Category Crude and Condensate Gas

(MBbls) (MMcf)

Proved Developed 3 210 953 1 185 745

Producing

Proved Developed 2 450 704 919 100

Nonproducing

Proved 1 017 758 372 471

Undeveloped

Total Proved 6 679 415 2 477 316

Probable 2 312 215 780 664

Possible 238 733 10 729

At the end of 2019 total proved reserves of crude and condensate were estimated at 940.3 million tonnes, and of gas at 70.15 billion cubic meters.

In addition to the audit of reserves, net contingent resources in the company's fields were estimated at year-end 2019:

Resources Category Crude and Condensate Gas

(MBbls) (MMcf)

Low Estimate (1С) 534 047 261 190

Best Estimate (2С) 811 365 442 539

High Estimates (3С) 1 725 775 2 145 852

Contingent resources are defined by the SPE-PRMS as those quantities of petroleum estimated, as of a given date, to be potentially recoverable from known accumulations by application of development projects not currently considered to be commercially recoverable due to one or more contingencies.

This press release contains inside information.

Forward-looking statements: This press release may contain or rely on statements about future events and expectations that are forward-looking in nature. Any statement that is not a statement of historical fact is a forward-looking statement that involves known and unknown risks, uncertainties and other factors which may cause actual results, performance or achievements expressed or implied by such forward-looking statements to differ. PJSC TATNEFT assumes no obligations to update the forward-looking statements to reflect actual results, changes in assumptions or changes in factors affecting these statements.