TNP / Tsakos Energy Navigation Limited - SEC Filings, Annual Report, Proxy Statement

Tsakos Energy Navigation Limited
US ˙ NYSE ˙ BMG9108L1735
THIS SYMBOL IS NO LONGER ACTIVE

Basic Stats
LEI 549300IFUTS62LRRCU54
CIK 1166663
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Tsakos Energy Navigation Limited
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
June 25, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

June 25, 2025 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release June 17, 2025 TEN, LTD. REPORTS PROFITS FOR FIRST QUARTER 2025 AND DECLARES FIRST SEMI-ANNUAL COMMON SHARE DIVIDEND OF $0.60 Q1 2025 EBITDA at $103 million and net income of $38 million - equivalent to $1.04 eps Divi

April 30, 2025 EX-99.3

Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2025 Annual Meeting Vote by June 11, 2025 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and it•s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. T

Exhibit 99.3 Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2025 Annual Meeting Vote by June 11, 2025 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and it•s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on June 12, 2025. Get info

April 30, 2025 EX-99.2

Tsakos Energy Navigation Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas. 2025 Annual Meeting Proxy Card IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE

Exhibit 99.2 Tsakos Energy Navigation Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas. 2025 Annual Meeting Proxy Card IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. A Proposals — The Board of Directors recommend a vote FOR all the nominees listed and FOR Proposals 2 – 4. 1. To re-el

April 30, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-31236

6-K 1 d934016d6k.htm 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athen

April 30, 2025 EX-99.4

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

Table of Contents Exhibit 99.4 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS 2024 Table of Contents TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Page Reports of Independent Registered Public Accounting Firm (PCAOB ID #1457) F-2 Consolidated Balance Sheets as of December 31, 2024 and 2023 F-6 Consolidated Statemen

April 30, 2025 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece April 30, 2025 Dear Shareholder: You are cordially invited to attend the 2025 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Thursday, June 12, 2025, at 15:00 (3:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, Greece.

April 11, 2025 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -12-31 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHA

April 11, 2025 EX-12.1

RULE 13a-14(a) CERTIFICATION

EX-12.1 Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements w

April 11, 2025 EX-13.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EX-13.2 Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Durham, and I, Harrys K

April 11, 2025 EX-2.3

DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

Exhibit 2.3 DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED References in this description to the “Company,” “we,” “our,” “or “us” are to Tsakos Energy Navigation Limited. Defined terms used but not defined herein have the meaning given to them in our Annual Report on Form 20-F to which this descripti

April 11, 2025 EX-11.1

TSAKOS ENERGY NAVIGATION LIMITED INSIDER TRADING POLICY

Exhibit 11.1 TSAKOS ENERGY NAVIGATION LIMITED INSIDER TRADING POLICY 1. The Scope of the Policy Tsakos Energy Navigation Limited ("TEN" or the "Company") is a public company, whose common shares and preferred shares are listed on the New York Stock Exchange and registered under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Pursuant to the Exchange Act, TEN files annual and

April 11, 2025 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EX-13.1 Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nikolas P. Tsakos, Chief Exe

April 11, 2025 EX-15.1

Consent of Independent Registered Public Accounting Firm

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-273740) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333-234279) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333-206852) of Tsakos

April 11, 2025 EX-12.2

RULE 13a-14(a) CERTIFICATION

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, and I, Harrys Kosmatos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which

December 3, 2024 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release November 26, 2024 TEN LTD. REPORTS PROFITS FOR THE NINE MONTHS AND THIRD QUARTER ENDED SEPTEMBER 30, 2024 AND SETS DIVIDEND DATE Net income of $157 million or $4.62 per share for 2024 nine months 50% higher dividend

December 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-31

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address

October 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 -12-31 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 JUNE 30, 2024 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant's name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens,

June 24, 2024 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release June 20, 2024 TEN, LTD. REPORTS PROFITS FOR THE FIRST QUARTER 2024 AND SETS DATE FOR FIRST COMMON SHARE SEMI-ANNUAL DIVIDEND OF $0.60 Dividend doubles from amount paid at same time last year Significant fleet renewal - incre

June 24, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

June 14, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

June 14, 2024 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release June 14, 2024 TEN LTD. ANNOUNCES NEW NYSE TICKER SYMBOL “TEN” ATHENS, GREECE, June 14, 2024 – TEN, Ltd. (the “Company”), a leading diversified crude, product and LNG tanker operator, is pleased to announce an upcoming change

May 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number 001-31236 T

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

May 3, 2024 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece May 3, 2024 Dear Shareholder: You are cordially invited to attend the 2024 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Friday, June 14, 2024, at 15:00 (3:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, Greec

May 3, 2024 EX-99.3

Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2024 Annual Meeting Vote by June 13, 2024 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and it•s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. T

EX-99.3 Exhibit 99.3 Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2024 Annual Meeting Vote by June 13, 2024 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and it•s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on June 14, 2024.

May 3, 2024 EX-99.2

Tsakos Energy Navigation ENDORSEMENT_LINE SACKPACK MR A SAMPLE DESIGNATION (IF ANY) ADD 1 000001 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 C123456789 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000 000000 ext 000000000.000000 ext 0000000

EX-99.2 Exhibit 99.2 Tsakos Energy Navigation ENDORSEMENTLINE SACKPACK MR A SAMPLE DESIGNATION (IF ANY) ADD 1 000001 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 C123456789 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000 000000 ext 000000000.000000 ext 000000000.000000 ext Your vote matters – here’s how to vote! You may vote online or by phone instead of mailing this card. Votes submitte

May 3, 2024 EX-99.4

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

EX-99.4 Table of Contents Exhibit 99.4 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS 2023 Table of Contents TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Page Reports of Independent Registered Public Accounting Firm (PCAOB ID #1457) F-2 Consolidated Balance Sheets as of December 31, 2023 and 2022 F-7 Consolidated

May 1, 2024 EX-FILING FEES

Form S-8 (Form Type) Tsakos Energy Navigation Limited (Exact name of registrant as specified in its charter) Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per

Exhibit 107.1 Form S-8 (Form Type) Tsakos Energy Navigation Limited (Exact name of registrant as specified in its charter) Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share (2) Maximum Aggregate Offering Price (2)(3) Fee Rate (3) Amount of Registration Fee (3) Equity Common Shares, $5.00 par value per

May 1, 2024 S-8

As filed with the Securities and Exchange Commission on May 1, 2024

As filed with the Securities and Exchange Commission on May 1, 2024 Registration No.

May 1, 2024 EX-4.8

TSAKOS ENERGY NAVIGATION LIMITED 2024 EQUITY INCENTIVE PLAN

Exhibit 4.8 TSAKOS ENERGY NAVIGATION LIMITED 2024 EQUITY INCENTIVE PLAN SECTION 1. GENERAL PURPOSE OF THE PLAN The purpose of the Tsakos Energy Navigation Limited 2024 Equity Incentive Plan (the “Plan”) is to advance the interests of the Company and its shareholders by providing a means to attract, retain, and reward present and prospective directors, officers, consultants and the other employees

April 19, 2024 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EX-13.1 Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nikolas P. Tsakos, Chief Exe

April 19, 2024 EX-13.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EX-13.2 Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Durham, Chief Financial

April 19, 2024 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549

` UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -12-31 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXC

April 19, 2024 EX-97.1

Tsakos Energy Navigation Limited COMPENSATION RECOVERY POLICY Adopted as of October 24, 2023

Exhibit 97.1 Tsakos Energy Navigation Limited COMPENSATION RECOVERY POLICY Adopted as of October 24, 2023 Tsakos Energy Navigation Limited, a Bermuda company (the “Company”), has adopted a Compensation Recovery Policy (this “Policy”) as described below. 1. Overview The Policy sets forth the circumstances and procedures under which the Company shall recover Erroneously Awarded Compensation from Cov

April 19, 2024 EX-2.3

DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

Exhibit 2.3 DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED References in this description to the “Company,” “we,” “our,” “or “us” are to Tsakos Energy Navigation Limited. Defined terms used but not defined herein have the meaning given to them in our Annual Report on Form 20-F to which this descripti

April 19, 2024 EX-15.1

Consent of Independent Registered Public Accounting Firm

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-273740) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333-234279) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333-206852) of Tsakos

April 19, 2024 EX-12.1

RULE 13a-14(a) CERTIFICATION

EX-12.1 Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements w

April 19, 2024 EX-12.2

RULE 13a-14(a) CERTIFICATION

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were ma

November 24, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2023 Commission File Number 001-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

November 24, 2023 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release 21st November 2023 TEN LTD. REPORTS RESULTS FOR THE NINE MONTHS AND THIRD QUARTER ENDED SEPTEMBER 30, 2023 AND DECLARES DIVIDEND DATE 160% increase in nine-months net income to $272 million equating to $8.19 per share $1.00

September 21, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 -12-31 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2023 JUNE 30, 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athen

September 21, 2023 EX-99.1

The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2023, on:

Exhibit 99.1 Capitalization The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2023, on: • an actual basis; and • an as adjusted basis giving effect to (i) scheduled debt repayments of $37.5 million, (ii) debt drawdowns of $59.2 million and paid to the shipyard for Hull 5081, Hull 5082, Hull 5083 and Hull 5084

August 14, 2023 CORRESP

Tsakos Energy Navigation Limited 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

Tsakos Energy Navigation Limited 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece August 14, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F Street, N.E. Washington, D.C. 20549 Attn: Cheryl Brown Re: Tsakos Energy Navigation Limited Acceleration Request for Registration Statement on Form F-3 File No. 333-273740 Dear M

August 4, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES Selected Consolidated Financial and Other Data (In Thousands of U.S. Dollars, except share, per share and fleet data) Three months ended March 31 (unaudited) STATEMENT OF OPERATIONS DATA 2023 2022 Voy

EX-99.1 EXHIBIT 99.1 May 30, 2023 First Quarter 2023 Summary Results In the first quarter of 2023, the positive industry fundamentals together with the trade imbalances the war in the Ukraine created, continued to support a healthy tanker market and allowed Tsakos Energy Navigation Limited (the “Company” or “TEN”) - despite operating fewer vessels—to generate gross revenues of $261 million, repres

August 4, 2023 EX-FILING FEES

Calculation of Filing Fee Tables Form F-3 (Form Type) Tsakos Energy Navigation Limited (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or

Calculation of Filing Fee Tables Form F-3 (Form Type) Tsakos Energy Navigation Limited (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit(2) Maximum Aggregate Offering Price Fee Rate Amount of Registration

August 4, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 001-3123

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address o

August 4, 2023 F-3

As filed with the Securities and Exchange Commission on August 4, 2023

F-3 Table of Contents As filed with the Securities and Exchange Commission on August 4, 2023 Registration No.

July 7, 2023 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on July 18, 2023, pursuant to the provisions of Rule 12d2-2 (a).

July 6, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2023 Commission File Number 001-31236

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

July 6, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release July 6, 2023 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, July 6, 2023 – TEN Ltd. (“TEN”) (NYSE: TNP) (the “Company”), a lea

May 31, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release May 30, 2023 TEN Ltd. to Redeem all of its 8.75% Series D Cumulative Redeemable Perpetual Preferred Shares ATHENS, Greece, May 30, 2023 – Tsakos Energy Navigation Ltd. (“TEN” or the “Comp

May 31, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number 001-31236 T

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

May 9, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release May 8, 2023 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, May 8, 2023 – TEN Ltd. (“TEN”) (NYSE: TNP) (the “Company”), a lea

May 9, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number 001-31236 T

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

May 5, 2023 EX-99.3

or (3) send an email to [email protected]. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Smartphone users Vote in Person

EX-99.3 Exhibit 99.3 Exhibit 99.3 Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2023 Annual Meeting Vote by June 15, 2023 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and it•s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on Ju

May 5, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece May 5, 2023 Dear Shareholder: You are cordially invited to attend the 2023 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Friday, June 16, 2023, at 15:00 (3:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, Greec

May 5, 2023 EX-99.4

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

EX-99.4 Table of Contents Exhibit 99.4 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS 2022 Table of Contents TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Page Reports of Independent Registered Public Accounting Firm (PCAOB ID #1457) F-2 Consolidated Balance Sheets as of December 31, 2022 and 2021 F-7 Consolidated

May 5, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number 001-31236 T

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

May 5, 2023 EX-99.2

(8683) within the USA, US territories and Canada Save paper, time and money! Using a black ink pen, mark your votes with an X as shown in this example. Sign up for electronic delivery at Please do not write outside the designated areas. www.investorv

EX-99.2 Exhibit 99.2 Exhibit 99.2 MMMMMMMMMMMM Tsakos Energy Navigation MMMMMMMMMMMMMM C123456789 000000000.000000 ext 000000000.000000 ext 000004 000000000.000000 ext 000000000.000000 ext ENDORSEMENTLINE SACKPACK 000000000.000000 ext 000000000.000000 ext Your vote matters – here’s how to vote! MR A SAMPLE You may vote online or by phone instead of mailing this card. DESIGNATION (IF ANY) Votes sub

April 12, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release April 10, 2023 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, April 10, 2023 – TEN Ltd. (“TEN”) (NYSE: TNP) (the “Company”), a

April 12, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2023 Commission File Number 001-31236

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

April 6, 2023 EX-12.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.1 Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements w

April 6, 2023 EX-13.2

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.2 Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Durham, Chief Financial

April 6, 2023 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -12-31 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHA

April 6, 2023 EX-15.1

Consent of Independent Registered Public Accounting Firm (filed herewith)

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-240253) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333-234279) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333-206852) of Tsakos

April 6, 2023 EX-12.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were ma

April 6, 2023 EX-13.1

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.1 Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nikolas P. Tsakos, President

April 6, 2023 EX-2.4

Description of Securities (filed herewith)

EX-2.4 Exhibit 2.4 DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED References in this description to the “Company,” “we,” “our,” “or “us” are to Tsakos Energy Navigation Limited. Defined terms used but not defined herein have the meaning given to them in our Annual Report on Form 20-F to which this de

February 14, 2023 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Kopernik Global Investors, LLC Passive Investment

SC 13G/A 1 c105601sc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to design

February 8, 2023 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release February 7, 2023 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, February 7, 2023 – TEN Ltd. (“TEN”) (NYSE: TNP) (the “Compan

February 8, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2023 Commission File Number 001-31

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address

January 31, 2023 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Konstantakopoulos Konstantinos - AMENDMENT NO. 4 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

January 3, 2023 EX-99.1

TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release January 3, 2023 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, January 3, 2023 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leadi

January 3, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2023 Commission File Number 001-312

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2023 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

November 23, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number 001-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

November 23, 2022 EX-99.1

Visit our company website at: http://www.tenn.gr

Exhibit 99.1 November 22, 2022 NINE MONTHS 2022 SUMMARY RESULTS In the first nine months of 2022, Tsakos Energy Navigation Limited?s (?TEN? or the ?Company?) modern and diversified fleet generated gross revenues of $590 million, $183 million higher than the 2021 first nine-months, reflecting the strength of the tanker markets. Operating income climbed to $134 million, a six-fold increase. Net inco

November 9, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release November 8, 2022 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, November 8, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a l

November 9, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number 001-31

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address

October 6, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number 001-312

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

October 6, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release October 6, 2022 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, October 6, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leadi

September 30, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 -12-31 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 JUNE 30, 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athen

September 30, 2022 EX-99.1

The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2022, on:

Capitalization The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2022, on: ? an actual basis; and ? an as adjusted basis giving effect to (i) scheduled debt repayments of $43.

September 29, 2022 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Konstantakopoulos Konstantinos - AMENDMENT NO. 3 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Tsakos Energy Navigation, LTD. (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) September 28, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to wh

September 14, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 Commission File Number 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

September 14, 2022 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release September 14, 2022 TEN LTD REPORTS PROFITS FOR THE SECOND QUARTER AND SIX MONTHS ENDED JUNE 30, 2022 AND DECLARES DIVIDEND OF $0.15 PER COMMON SHARE Ninefold increase of net income from Q1 2022 6mo net income of $51.7 millio

August 9, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number 001-3123

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of pr

August 9, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release August 8, 2022 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, August 8, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leadi

July 8, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

July 8, 2022 EX-3.1

Memorandum of Increase of Share Capital

Exhibit 3.1 Registration No. 18508 GOVERNMENT OF BERMUDA Registrar of Companies The Companies Act 1981 CERTIFICATE OF DEPOSIT OF MEMORANDUM OF INCREASE OF SHARE CAPITAL THIS IS TO CERTIFY that a Memorandum of Increase of Share Capital of Tsakos Energy Navigation Limited was delivered to the Registrar of Companies on the 1st day of July 2022 in accordance with section 45(3) of the Companies Act 198

July 8, 2022 EX-3.2

Bye-laws of Tsakos Energy Navigation Limited (filed as Exhibit 3.2 to the Company’s Form 6-K filed with the SEC on July 8, 2022, and hereby incorporated by reference)

Exhibit 3.2 B Y E - L A W S OF TSAKOS ENERGY NAVIGATION LIMITED CERTIFIED that the within-written Bye-Laws (Nos. 1 to 47) are a true copy of the Bye-Laws of Tsakos Energy Navigation Limited as subscribed by the subscribers to the Memorandum of Association and subsequently approved at the Statutory Meeting of the above Company held on 27 July 1993, and amended at a Special General Meeting held on 1

July 7, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

July 7, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release July 7, 2022 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, July 7, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leading div

July 1, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

July 1, 2022 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release June 30, 2022 TEN, LTD. REPORTS PROFITS FOR THE FIRST QUARTER 2022 AND COMMON DIVIDEND DISTRIBUTION Over 200% increase in Net Income $150 million in revenues ? Solid Balance Sheet $500 million of continued dividend payments

May 23, 2022 EX-1

W I T N E S S E T H:

EXHIBIT 1 JOINT FILING AGREEMENT dated as of the 23rd day of May, 2022, among Redmont Trading Corp.

May 23, 2022 SC 13D/A

TNP / Tsakos Energy Navigation Ltd. / TSAKOS HOLDINGS FOUNDATION - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D [Rule 13d-101] Information To Be Included in Statements Filed Pursuant to ? 240.13d-1(a) and Amendments Thereto Filed Pursuant to ? 240.13d-2(a) (Amendment No. 14)* TSAKOS ENERGY NAVIGATION LIMITED (Name of Issuer) Common Shares, par value $5.00 per share (Title of Class of Securities) G9108L173 (CUSIP Number) Geo

May 23, 2022 SC 13D/A

TNP / Tsakos Energy Navigation Ltd. / SEA CONSOLIDATION S A OF PANAMA - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D [Rule 13d-101] Information To Be Included in Statements Filed Pursuant to § 240.13d-1(a) and Amendments Thereto Filed Pursuant to § 240.13d-2(a) (Amendment No. 14)* TSAKOS ENERGY NAVIGATION LIMITED (Name of Issuer) Common Shares, par value $5.00 per share (Title of Class of Securities) G9108L173 (CUSIP Nu

May 23, 2022 EX-99.1

W I T N E S S E T H:

EX-99.1 EXHIBIT 1 JOINT FILING AGREEMENT dated as of the 23rd day of May 2022, among Sea Consolidation S.A. of Panama (“Sea Consolidation”), Intermed Champion S.A. of Panama (“Intermed”), Methoni Shipping Company Limited (“Methoni”), Tsakos Energy Management Limited (“TEM”), Panayotis Tsakos and Nikolas P. Tsakos. W I T N E S S E T H: WHEREAS, Sea Consolidation, Intermed, Methoni, TEM, Panayotis T

May 10, 2022 EX-99.2

Tsakos Energy Navigation MMMMMMMMMMMMMM C123456789 000000000.000000 ext 000000000.000000 ext 000004 000000000.000000 ext 000000000.000000 ext ENDORSEMENT_LINE______________ SACKPACK_____________ 000000000.000000 ext 000000000.000000 ext Your vote mat

Exhibit 99.2 Tsakos Energy Navigation MMMMMMMMMMMMMM C123456789 000000000.000000 ext 000000000.000000 ext 000004 000000000.000000 ext 000000000.000000 ext ENDORSEMENTLINE SACKPACK 000000000.000000 ext 000000000.000000 ext Your vote matters ? here?s how to vote! MR A SAMPLE You may vote online or by phone instead of mailing this card. DESIGNATION (IF ANY) Votes submitted electronically must be ADD

May 10, 2022 EX-99.4

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

Table of Contents Exhibit 99.4 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS 2021 Table of Contents TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Page Reports of Independent Registered Public Accounting Firm (PCAOB ID #1457) F-2 Consolidated Balance Sheets as of December 31, 2021 and 2020 F-7 Consolidated Statemen

May 10, 2022 EX-99.3

or (3) send an email to [email protected]. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. For complete information and to

Exhibit 99.3 Exhibit 99.3Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2022 Annual Meeting Vote by June 16, 2022 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and it?s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on June 17, 20

May 10, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number 001-31236 T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of princ

May 10, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece May 6, 2022 Dear Shareholder: You are cordially invited to attend the 2022 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Friday, June 17, 2022, at 15:00 (3:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, Greece. The f

May 9, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release May 9, 2022 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, May 9, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leading div

May 9, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number 001-31236 T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of princ

April 28, 2022 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -12-31 FORM 20-F ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHA

April 28, 2022 EX-2.5

Description of Securities (filed herewith)

Exhibit 2.5 DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED References in this description to the ?Company,? ?we,? ?our,? ?or ?us? are to Tsakos Energy Navigation Limited. Defined terms used but not defined herein have the meaning given to them in our Annual Report on Form 20-F to which this descripti

April 28, 2022 EX-15.1

Consent of Independent Registered Public Accounting Firm (filed herewith)

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-240253) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333-234279) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333-206852) of Tsakos

April 28, 2022 EX-12.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made

April 28, 2022 EX-13.1

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the ?Company?) for the period ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Nikolas P. Tsakos, President and Chi

April 28, 2022 EX-13.2

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.2 Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Durham, Chief Financial

April 28, 2022 EX-12.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were ma

April 7, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED

TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release April 6, 2022 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, April 6, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leading diversified cr

April 7, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2022 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of pri

February 11, 2022 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Kopernik Global Investors, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 9, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number 001-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

February 9, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release February 8, 2022 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, February 8, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a l

January 21, 2022 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Konstantakopoulos Konstantinos - AMENDMENT NO. 2 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) January 20, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

January 14, 2022 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Konstantakopoulos Konstantinos - AMENDMENT NO. 1 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

January 11, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number 001-312

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

January 11, 2022 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release January 11, 2022 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, January 11, 2022 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a lea

December 17, 2021 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES Selected Consolidated Financial and Other Data (In Thousands of U.S. Dollars, except share, per share and fleet data) Three months ended Nine months ended September 30 (unaudited) September 30 (unaudi

Exhibit 99.1 December 16, 2021 THIRD QUARTER 2021 SUMMARY RESULTS Tsakos Energy Navigation Limited?s (the ?Company? or ?TEN?) voyage revenues totaled $131.6 million for the third quarter of 2021 with utilization at about 90%, as nine vessel surveys were brought forward and took place during the 2021 third quarter. Non-cash items of $36.4 million, contributed to a third quarter net loss of $25.0 mi

December 17, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2021 Commission File Number 001-31

6-K 1 d157863d6k.htm 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, At

November 12, 2021 SC 13G

TNP / Tsakos Energy Navigation Ltd. / Konstantakopoulos Konstantinos Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) November 12, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

November 12, 2021 EX-1

Joint Filing Agreement

Exhibit 1 Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a statement on Schedule 13G or, to the extent required by applicable law, Schedule 13D with respect to the Common Stock of Tsakos Energy Navigation Limited, beneficially owned by them, and further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint filing.

November 5, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number 001-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

November 5, 2021 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release November 5, 2021 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, November 5, 2021 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a l

October 29, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number 001-312

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

October 29, 2021 424B5

$100,000,000 Common Shares 8.75% Series D Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share) Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share)

Table of Contents Filed pursuant to Rule 424(b)(5) (Registration No. 333-240253) PROSPECTUS SUPPLEMENT (To Prospectus Dated August 7, 2020) $100,000,000 Common Shares 8.75% Series D Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share) Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share) Series F F

October 29, 2021 EX-1.1

Amendment No. 1, dated October 29, 2021, to the At-The-Market Equity Offering Sales Agreement, dated May 5, 2021, by and between the Company and DNB Markets, Inc. and Virtu Americas LLC, as sales agents.

Exhibit 1.1 AMENDMENT NO. 1 TO AT-THE-MARKET EQUITY OFFERING SALES AGREEMENT October 29, 2021 DNB MARKETS, INC. 30 Hudson Yards New York, New York 10001 VIRTU AMERICAS LLC One Liberty Plaza 165 Broadway New York, NY 10006 Ladies and Gentlemen: Tsakos Energy Navigation Limited, a Bermuda exempted company (the ?Company?) and DNB Markets, Inc. and Virtu Americas LLC (collectively, the ?Agents?) are p

October 27, 2021 6-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

October 26, 2021 EX-99.1

The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2021 on:

Exhibit 99.1 Capitalization The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2021 on: ? an actual basis; and ? an as adjusted basis giving effect to (i) scheduled debt repayments of $55.9 million, (ii) debt prepayments of $56.8 million for vessels Sunray, Artemis, Afrodite, Ariadne, Ajax, Apollon and Aris an

October 26, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October, 2021 Commission File Number 001-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October, 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

October 8, 2021 EX-99.2

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.2 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release October 8, 2021 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, October 8, 2021 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leadi

October 8, 2021 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release October 7, 2021 TEN LTD REPORTS RESULTS FOR THE SECOND QUARTER AND SIX MONTHS ENDED JUNE 30, 2021 Initiation of dual-fuel newbuilding program for up to six tankers chartered to a major oil concern Timely completion of four-v

October 8, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number 001-312

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

August 6, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number 001-3123

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of pr

August 6, 2021 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release August 6, 2021 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, GREECE, August 6, 2021 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leadi

July 8, 2021 6-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July, 2021 Commission File Number 001-312

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July, 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of p

July 8, 2021 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release July 8, 2021 TEN Ltd. Declares Dividend on its Series F Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, July 8, 2021 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leading div

July 8, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of prin

July 2, 2021 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 2 d128255dex991.htm EX-99.1 Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release June 29, 2021 TEN LTD REPORTS RESULTS FOR THE FIRST QUARTER 2021 AND DIVIDEND DECLARATION $140 million in revenues and positive operating income in a challenging market Continuous dividend

July 2, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July, 2021 Commission File Number 001-31236

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July, 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of pri

May 14, 2021 EX-99.4

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

Table of Contents Exhibit 99.4 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS 2020 Table of Contents TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Page Reports of Independent Registered Public Accounting Firm F-3 Consolidated Balance Sheets as of December 31, 2020 and 2019 F-7 Consolidated Statements of Comprehensi

May 14, 2021 EX-99.2

Tsakos Energy Navigation Your vote matters heres how to vote! You may vote online or by phone instead of mailing this card. Votes submitted electronically must be received by 11:59am, (Eastern Time), on June 23, 2021. Online Go to www.investorvote.co

Exhibit 99.2 Tsakos Energy Navigation Your vote matters heres how to vote! You may vote online or by phone instead of mailing this card. Votes submitted electronically must be received by 11:59am, (Eastern Time), on June 23, 2021. Online Go to www.investorvote.com/TNP or scan the QR code login details are located in the shaded bar below. Phone Call toll free 1-800-652-VOTE (8683) within the USA, U

May 14, 2021 EX-99.3

Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2021 Annual Meeting Vote by June 23, 2021 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and its time to vote! You have the right to vote on proposals being presented at the Annual Meeting. Th

Exhibit 99.3 Your Vote Counts! TSAKOS ENERGY NAVIGATION LTD 2021 Annual Meeting Vote by June 23, 2021 11 :59 PM ET You invested in TSAKOS ENERGY NAVIGATION LTD and its time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on June 24, 2021. Get infor

May 14, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2021 Commission File Number 001-31236 T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of princ

May 14, 2021 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece May 14, 2021 Dear Shareholder: You are cordially invited to attend the 2021 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Thursday, June 24, 2021, at 16:00 (4:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, Greece. Th

May 11, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of princ

May 11, 2021 EX-99.1

TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares

Exhibit 99.1 TEN Ltd. Declares Dividend on its Series D and Series E Cumulative Perpetual Preferred Shares ATHENS, Greece, May 07, 2021 ? TEN Ltd. (?TEN?) (NYSE: TNP) (the ?Company?), a leading diversified crude, product and LNG tanker operator, today announced that its Board of Directors declared the regular quarterly cash dividend of $0.546875 per share for its Series D Cumulative Perpetual Pref

May 5, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2021 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant?s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of princ

May 5, 2021 EX-1.1

At-The-Market Equity Offering Sales Agreement with DNB Markets, Inc. and Virtu Americas LLC, as sales agents, dated May 5, 2021

Exhibit 1.1 TSAKOS ENERGY NAVIGATION LIMITED Common Shares ($5.00 par value per share) Series D Cumulative Redeemable Perpetual Preferred Shares ($1.00 par value per share) Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares ($1.00 par value per share) Series F Fixed-to-Floating Cumulative Redeemable Perpetual Preferred Shares ($1.00 par value per share) AT-THE-MARKET

May 5, 2021 424B5

$50,000,000 Common Shares 8.75% Series D Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share) Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share) S

424B5 1 d400966d424b5.htm 424B5 Table of Contents Filed pursuant to Rule 424(b)(5) (Registration No. 333-240253) PROSPECTUS SUPPLEMENT (To Prospectus Dated August 7, 2020) $50,000,000 Common Shares 8.75% Series D Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25 Per Share) Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares (Liquidation Prefe

April 16, 2021 EX-2.5

Description of Securities (filed herewith)

Exhibit 2.5 DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED References in this description to the ?Company,? ?we,? ?our,? ?or ?us? are to Tsakos Energy Navigation Limited. Defined terms used but not defined herein have the meaning given to them in our Annual Report on Form 20-F to which this descripti

April 16, 2021 EX-13.2

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the ?Company?) for the period ended December 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Paul Durham, Chief Financial Officer

April 16, 2021 EX-12.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made

April 16, 2021 EX-12.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not

April 16, 2021 EX-15.1

Consent of Independent Registered Public Accounting Firm (filed herewith)

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-240253) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333-234279) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333 -206852) of Tsakos

April 16, 2021 EX-13.1

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the ?Company?) for the period ended December 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Nikolas P. Tsakos, President and Chi

April 16, 2021 20-F

Form 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. _3)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L173 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 8, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

December 4, 2020 6-K

Current Report of Foreign Issuer - 6-K

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December, 2020 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Addres

December 4, 2020 EX-99.1

TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TEN, Ltd. 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release November 23, 2020 TEN LTD REPORTS PROFITS FOR THE NINE MONTHS AND THIRD QUARTER ENDED SEPTEMBER 30, 2020 AND ANNOUNCES COMMON STOCK DIVIDEND OF $0.125 PER SHARE 130% increase of operating income y-o-y Full-year commo

October 30, 2020 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on November 10, 2020, pursuant to the provisions of Rule 12d2-2 (a).

October 9, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October, 2020 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

October 9, 2020 EX-99.1

CAPITALIZATION

EX-99.1 Exhibit 99.1 CAPITALIZATION The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2020 on: • an actual basis; and • an as adjusted basis giving effect to (i) scheduled debt repayments of $55 million, (ii) the declaration of $50 million redemption of Series C Preferred Shares, (iii) the payment of $9.2 mil

October 9, 2020 EX-99.2

AMENDMENT TO CERTIFICATE OF DESIGNATIONS SERIES G REDEEMABLE CONVERTIBLE PERPETUAL PREFERRED SHARES (Par Value US$1.00 Per Share) TSAKOS ENERGY NAVIGATION LIMITED

EX-99.2 Exhibit 99.2 AMENDMENT TO CERTIFICATE OF DESIGNATIONS OF SERIES G REDEEMABLE CONVERTIBLE PERPETUAL PREFERRED SHARES (Par Value US$1.00 Per Share) OF TSAKOS ENERGY NAVIGATION LIMITED TSAKOS ENERGY NAVIGATION LIMITED, a Bermuda exempted company limited by shares (hereinafter called the “Company”), does hereby certify that: A. Pursuant to authority contained in Sections 3.4 and 27.6 of its By

August 5, 2020 CORRESP

-

Acceleration Request TSAKOS ENERGY NAVIGATION LIMITED 367 SYNGROU AVENUE 175 64 P.

July 31, 2020 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES Selected Consolidated Financial and Other Data (In Thousands of U.S. Dollars, except share, per share and fleet data) Three months ended March 31 (unaudited) 2020 2019 STATEMENT OF OPERATIONS DATA Voy

EX-99.1 Exhibit 99.1 June 11, 2020 First Quarter 2020 Summary Results Tsakos Energy Navigation Limited’s (the “Company” or “TEN”) gross revenues for the first quarter of 2020 came in at approximately $180 million, $32 million higher than in the 2019 first quarter. Operating income doubled to $54.7 million from $27.8 million in the 2019 first quarter. Net income was $21.2 million, which takes into

July 31, 2020 EX-4.1

Form of Senior Indenture

EX-4.1 Exhibit 4.1 TSAKOS ENERGY NAVIGATION LIMITED and [ ], as Trustee INDENTURE Dated as of [ ] SENIOR DEBT SECURITIES TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 1.1 Definitions 1 Section 1.2 Compliance Certificates and Opinions 7 Section 1.3 Form of Documents Delivered to Trustee 7 Section 1.4 Acts of Holders; Record Dates 8 Section 1.5 No

July 31, 2020 EX-4.2

Form of Subordinated Indenture

EX-4.2 Exhibit 4.2 TSAKOS ENERGY NAVIGATION LIMITED and [ ], as Trustee INDENTURE Dated as of [ ] SUBORDINATED DEBT SECURITIES ARTICLE I DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 1.1 Definitions 1 Section 1.2 Compliance Certificates and Opinions 8 Section 1.3 Form of Documents Delivered to Trustee 9 Section 1.4 Acts of Holders; Record Dates 9 Section 1.5 Notices, Etc. to Tr

July 31, 2020 6-K

July 31, 2020

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2020 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Addres

July 31, 2020 EX-99.2

Reverse Share Split Disclosure

EX-99.2 Exhibit 99.2 Reverse Share Split Disclosure On July 1, 2020, Tsakos Energy Navigation Limited (the “Company”) effected a one-for-five (1-for-5) reverse share split of its authorized common shares, with a corresponding increase in the par value per share to $5.00 per share. The reverse share split reduced the number of authorized common shares from 175,000,000 common shares, with a par valu

July 31, 2020 F-3

Form F-3

F-3 Table of Contents As filed with the Securities and Exchange Commission on July 31, 2020 Registration No.

July 7, 2020 6-K

July 7, 2020

6-K 1 d948713d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2020 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, A

July 7, 2020 EX-1.1

Bye-laws of Tsakos Energy Navigation Limited (filed as Exhibit 1.1 to the Company’s Form 6-K filed with the SEC on July 7, 2020, and hereby incorporated by reference)

EX-1.1 Exhibit 1.1 B Y E - L A W S OF TSAKOS ENERGY NAVIGATION LIMITED CERTIFIED that the within-written Bye-Laws (Nos. 1 to 47) are a true copy of the Bye-Laws of TSAKOS ENERGY NAVIGATION LIMITED, as subscribed by the subscribers to the Memorandum of Association and subsequently approved at the Statutory Meeting of the above Company held on 27 July 1993, and amended at a Special General Meeting h

July 7, 2020 EX-2.1

COMMON SHARES PAR VALUE $5.00 COMMON SHARES Certificate Number

EX-2.1 Exhibit 2.1 ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS# COMMON SHARES PAR VALUE $5.00 COMMON SHARES Certificate Number ZQ00000000 Shares * * 000000 ****************** TSAKOS ENERGY NAVIGATION LIMITED INCORPORATED UNDER THE LAWS OF BERMUDA THIS CERTIFIES THAT ** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample

May 7, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 d923575d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2020. Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, A

May 7, 2020 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece SUPPLEMENT TO THE PROXY STATEMENT FOR THE 2020 ANNUAL GENERAL MEETING OF SHAREHOLDERS

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece SUPPLEMENT TO THE PROXY STATEMENT FOR THE 2020 ANNUAL GENERAL MEETING OF SHAREHOLDERS This proxy statement supplement (this “Supplement”), dated May 6, 2020, supplements the proxy statement (the “Proxy Statement”) of Tsakos Energy Navigation Limited (“TEN” or the “Company”) dated April 22, 2020

April 23, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2020. Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Addr

April 23, 2020 EX-99.2

Tsakos Energy Navigation Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas. 2020 Annual Meeting Proxy Card 1234 5678 9012 345 q IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE B

EX-99.2 Exhibit 99.2 Tsakos Energy Navigation Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas. 2020 Annual Meeting Proxy Card 1234 5678 9012 345 q IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. q A Proposals — The Board of Directors recommend a vote FOR all the nominees listed and F

April 23, 2020 EX-99.3

Tsakos Energy Navigation Online Go to www.investorvote.com/TNP or scan the QR code — login details are located in the shaded bar below. Votes submitted electronically must be received by 11:59 p.m., Eastern Time, on May 27, 2020 Shareholder Meeting N

EX-99.3 Exhibit 99.3 Tsakos Energy Navigation Online Go to www.investorvote.com/TNP or scan the QR code — login details are located in the shaded bar below. Votes submitted electronically must be received by 11:59 p.m., Eastern Time, on May 27, 2020 Shareholder Meeting Notice 1234 5678 9012 345 Important Notice Regarding the Availability of Proxy Materials for Tsakos Energy Navigation Limited Shar

April 23, 2020 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece April 22, 2020 Dear Shareholder: You are cordially invited to attend the 2020 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Thursday, May 28, 2020, at 15:00 (3:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, G

April 23, 2020 EX-99.5

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

EX-99.5 Exhibit 99.5 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS 2019 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES INDEX TO CONSOLIDATED FINANCIAL STATEMENTS Page Reports of Independent Registered Public Accounting Firm F-3 Consolidated Balance Sheets as of December 31, 2019 and 2018 F-6 Consolidated Statements of Comprehensive Income (Loss) for the yea

April 23, 2020 EX-99.4

May 28, 2020 TSAKOS ENERGY NAVIGATION LTD Annual Meeting April 09, 2020 May 28, 2020 3:00 PM LST Tsakos Energy Navigation Limited 367 Syngrou Avenue 17564 P. Faliro Athens, Greece Return Address Line 1 Return Address Line 2 Return Address Line 3 51 M

EX-99.4 Exhibit 99.4 May 28, 2020 TSAKOS ENERGY NAVIGATION LTD Annual Meeting April 09, 2020 May 28, 2020 3:00 PM LST Tsakos Energy Navigation Limited 367 Syngrou Avenue 17564 P. Faliro Athens, Greece Return Address Line 1 Return Address Line 2 Return Address Line 3 51 MERCEDES WAY EDGEWOOD NY 11717 Investor Address Line 1 Investor Address Line 2 Investor Address Line 3 18 Investor Address Line 4

April 14, 2020 EX-12.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.1 Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements w

April 14, 2020 EX-2.7

Description of Securities (filed herewith)

EX-2.7 Exhibit 2.7 DESCRIPTION OF TSAKOS ENERGY NAVIGATION LIMITED’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED References in this description to the “Company,” “we,” “our,” “or “us” are to Tsakos Energy Navigation Limited. Defined terms used but not defined herein have the meaning given to them in our Annual Report on Form 20-F to which this de

April 14, 2020 EX-12.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were ma

April 14, 2020 EX-15.1

Consent of Independent Registered Public Accounting Firm (filed herewith)

EX-15.1 Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333-234279) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333 -219569) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333 -206852)

April 14, 2020 20-F

Form 20-F

Form 20-F Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 14, 2020 EX-13.1

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.1 Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nikolas P. Tsakos, President

April 14, 2020 EX-13.2

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.2 Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Durham, Chief Financial

February 14, 2020 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Kopernik Global Investors, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L108 (CUSIP Number) December 31, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

October 29, 2019 424B3

11,666,666 Shares Common Shares Tsakos Energy Navigation Limited

424B3 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-234279 PROSPECTUS 11,666,666 Shares Common Shares Tsakos Energy Navigation Limited This prospectus relates to the possible resale, from time to time, of up to 11,666,666 of our common shares, par value $1.00 per share, by the selling shareholder named herein or its pledgees, donees, transferees or other successors in int

October 25, 2019 CORRESP

TNP / Tsakos Energy Navigation Ltd. CORRESP - -

CORRESP TSAKOS ENERGY NAVIGATION LIMITED 367 SYNGROU AVENUE 175 64 P. FALIRO ATHENS, GREECE October 25, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Washington, D.C. 20549 Attention: Karina Dorin Re: Tsakos Energy Navigation Limited Registration Statement on Form F-3 (Registration No. 333-234279) Ladies and Gentlemen: Pursuant to Rule 461 under th

October 21, 2019 F-3

Form F-3

Form F-3 Table of Contents As filed with the Securities and Exchange Commission on October 21, 2019 Registration No.

October 21, 2019 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Offshore Merchant Partners Asset Yield Fund, Lp - SC 13G/A Passive Investment

SC 13G/A 1 tm1920470d1sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* TSAKOS ENERGY NAVIGATION LIMITED (Name of Issuer) Common Shares (Title of Class of Securities) G9108L108 (CUSIP Number) September 25, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropria

September 27, 2019 EX-99.2

STATEMENT OF DESIGNATION OF THE RIGHTS, PREFERENCES AND PRIVILEGES OF SERIES B CUMULATIVE REDEEMABLE PERPETUAL PREFERRED SHARES OF SHYRIS SHIPPING COMPANY S.A. (Pursuant to Section 35 of the Business Corporations Act of the Republic of the Marshall I

EX-99.2 Exhibit 99.2 STATEMENT OF DESIGNATION OF THE RIGHTS, PREFERENCES AND PRIVILEGES OF SERIES B CUMULATIVE REDEEMABLE PERPETUAL PREFERRED SHARES OF SHYRIS SHIPPING COMPANY S.A. (Pursuant to Section 35 of the Business Corporations Act of the Republic of the Marshall Islands) The undersigned, Georgios Saroglou, and Athanasios Korvesis, do hereby certify: 1. That they are the duly elected and act

September 27, 2019 EX-99.3

REGISTRATION RIGHTS AGREEMENT

EX-99.3 Exhibit 99.3 REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made and entered into as of September 25, 2019, among Tsakos Energy Navigation Limited, a Bermuda exempted company limited by shares (the “Company”), and each of the person(s) set forth on Schedule A to this Agreement (the “Shareholders”). WHEREAS, this Agreement is made in connection with t

September 27, 2019 EX-99.1

CERTIFICATE OF DESIGNATIONS SERIES G REDEEMABLE CONVERTIBLE PERPETUAL PREFERRED SHARES (Par Value US$1.00 Per Share) TSAKOS ENERGY NAVIGATION LIMITED

EX-99.1 Exhibit 99.1 CERTIFICATE OF DESIGNATIONS OF SERIES G REDEEMABLE CONVERTIBLE PERPETUAL PREFERRED SHARES (Par Value US$1.00 Per Share) OF TSAKOS ENERGY NAVIGATION LIMITED TSAKOS ENERGY NAVIGATION LIMITED, a Bermuda exempted company limited by shares (hereinafter called the “Company”), does hereby certify that pursuant to authority contained in Sections 3.4 and 27.6 of its Bye-laws, the Board

September 27, 2019 6-K

September 27, 2019

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2019 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (A

September 27, 2019 SC 13G

TNP / Tsakos Energy Navigation Ltd. / Offshore Merchant Partners Asset Yield Fund, Lp - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

September 23, 2019 6-K

September 23, 2019

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2019 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (A

September 23, 2019 EX-99.1

SHARE PURCHASE AGREEMENT by and among TSAKOS ENERGY NAVIGATION LIMITED, SHYRIS SHIPPING COMPANY S.A., THE PURCHASERS NAMED ON SCHEDULE A HERETO

EX-99.1 Exhibit 99.1 SHARE PURCHASE AGREEMENT by and among TSAKOS ENERGY NAVIGATION LIMITED, SHYRIS SHIPPING COMPANY S.A., and THE PURCHASERS NAMED ON SCHEDULE A HERETO TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.1 Definitions 1 ARTICLE II AGREEMENT TO SELL AND PURCHASE 6 Section 2.1 Sale and Purchase 6 Section 2.2 Closing 6 Section 2.3 Mutual Conditions 6 Section 2.4 Each Purchaser’s

September 20, 2019 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES

EX-99.1 EXHIBIT 99.1 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS JUNE 30, 2019 AND DECEMBER 31, 2018 (Expressed in thousands of U.S. Dollars - except share and per share data) June 30, 2019 December 31, 2018 (UNAUDITED) ASSETS CURRENT ASSETS: Cash and cash equivalents $ 182,929 $ 204,763 Restricted cash 9,657 15,763 Accounts receivable, net 32,688 35,351 Capitaliz

September 20, 2019 EX-99.2

1

EX-99.2 EXHIBIT 99.2 TSAKOS ENERGY NAVIGATION LIMITED THREE AND SIX MONTHS ENDED JUNE 30, 2019 Results of operations – management’s discussion & analysis (Percentage calculations are based on the actual amounts shown in the accompanying financial statements) Voyage revenues Voyage revenue earned for the three months ended June 30, 2019 and 2018: 2019 2018 $ million % of total $ million % of total

September 20, 2019 6-K

September 20, 2019

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September, 2019 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (

September 20, 2019 EX-99.3

CAPITALIZATION

EX-99.3 EXHIBIT 99.3 CAPITALIZATION The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2019 on: • an actual basis; and • an as adjusted basis giving effect to (i) scheduled debt repayments of $41 million, (ii) the $50 million redemption of Series B Preferred Shares, (iii) the payment of $10.2 million of prefer

July 30, 2019 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on August 12, 2019, pursuant to the provisions of Rule 12d2-2 (a).

July 19, 2019 CORRESP

TNP / Tsakos Energy Navigation Ltd. CORRESP - -

CORRESP Morgan, Lewis & Bockius LLP 101 Park Avenue New York, New York 10178 July 19, 2019 Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

June 28, 2019 6-K

June 28, 2019

6-K 1 d748764d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June, 2019 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro,

June 28, 2019 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED (TEN) 367 Syngrou Avenue, 175 64 P. Faliro, Hellas Tel: 30210 94 07 710-3, Fax: 30210 94 07 716, e-mail: [email protected] Website: http://www.tenn.gr Press Release June 28, 2019 TEN Ltd. to Redeem all of its 8.00% Series B Cumulative Redeemable Perpetual Preferred Shares ATHENS, GREECE, June 28, 2019 – Tsakos Energy Navigation Ltd. (“TEN” or the “Co

June 19, 2019 EX-99.2

1

EX-99.2 Exhibit 99.2 TSAKOS ENERGY NAVIGATION LIMITED THREE MONTHS ENDED MARCH 31, 2019 Results of operations – Management’s Discussion & Analysis Three months ended March 31, 2019 versus three months ended March 31, 2018 (Percentage changes are based on the actual amounts shown in the accompanying consolidated financial statements) Voyage revenues Voyage revenues earned in the first quarter of 20

June 19, 2019 EX-99.3

CAPITALIZATION

EX-99.3 Exhibit 99.3 CAPITALIZATION The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of March 31, 2019 on: • an actual basis; and • an as adjusted basis giving effect to (i) debt repayments of $28.9 million, (ii) drawdown of $25.5 million for part of the refinancing of four vessels and prepayment of $25.6 million of deb

June 19, 2019 6-K

June 19, 2019

6-K 1 d766832d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June, 2019 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro,

June 19, 2019 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS MARCH 31, 2019 (UNAUDITED) AND DECEMBER 31, 2018 (Expressed in thousands of U.S. Dollars - except share and per share data) March 31, 2019 December 31, 2018 ASSETS CURRENT ASSETS: Cash and cash equivalents $ 177,333 $ 204,763 Restricted cash 14,421 15,763 Accounts receivable, net 35,408 35,351 Capita

April 19, 2019 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece April 18, 2019 Dear Shareholder: You are cordially invited to attend the 2019 Annual General Meeting of Shareholders of Tsakos Energy Navigation Limited, which will be held on Thursday, May 30, 2019, at 15:00 (3:00 pm) Greek local time in our Auditorium, 367 Syngrou Avenue, P. Faliro, Athens, G

April 19, 2019 EX-99.2

q IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. q A Proposals — The Board of Directors recommend a vote FOR all the nominees listed and FOR Proposals 2 – 4. 1. Election of Directors: + 01 - Efstratios Georgio

EX-99.2 Exhibit 99.2 Tsakos Energy Navigation Your vote matters – here’s how to vote! You may vote online or by phone instead of mailing this card. Votes submitted electronically must be received by 11:59am, (Eastern Time), on May 29, 2019. Online Go to www.investorvote.com/TNP or scan the QR code — login details are located in the shaded bar below. Phone Call toll free 1-800-652-VOTE (8683) withi

April 19, 2019 EX-99.4

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS

EX-99.4 Table of Contents Exhibit 99.4 Table of Contents Table of Contents Table of Contents Chairman’s Letter April 18, 2019 Dear Shareholders, Looking back at 2018, we can say that it was probably the worst spot market for our industry in recent memory. The year started with the first three consecutive quarters seriously testing the resilience of operators, with the last quarter showing strong s

April 19, 2019 6-K

TNP / Tsakos Energy Navigation Ltd. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April, 2019. Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Add

April 19, 2019 EX-99.3

*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 30, 2019

EX-99.3 Exhibit 99.3 *** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 30, 2019 TSAKOS ENERGY NAVIGATION LTD Return Address Line 1 Return Address Line 2 Return Address Line 3 51 MERCEDES WAY EDGEWOOD NY 11717 Investor Address Line 1 Investor Address Line 2 Investor Address Line 3 Investor Address Line 4

April 12, 2019 EX-15.1

Consent of Independent Registered Public Accounting Firm (filed herewith)

EX-15.1 Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No. 333 -219569) of Tsakos Energy Navigation Limited, (2) Registration Statement (Form F-3 No. 333 -206852) of Tsakos Energy Navigation Limited, (3) Registration Statement (Form F-3 No. 333-159218,

April 12, 2019 20-F

Form 20-F

Form 20-F Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 12, 2019 EX-12.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.1 Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements w

April 12, 2019 EX-13.1

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.1 Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nikolas P. Tsakos, President

April 12, 2019 EX-12.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were ma

April 12, 2019 EX-13.2

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith)

EX-13.2 Exhibit 13.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 20-F of Tsakos Energy Navigation Limited (the “Company”) for the period ended December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Durham, Chief Financial

April 12, 2019 EX-15.2

Consent of Howe Robinson Partners (UK) Ltd. (filed herewith)

Exhibit 15.2 Howe Robinson Partners (UK) Ltd 40 Gracechurch Street London EC3V 0BT Tel: +44 20 7488 3444 CONSENT OF HOWE ROBINSON PARTNERS Tsakos Energy Navigation Limited 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece April 12, 2019 Ladies and Gentlemen: Reference is made to the Tsakos Energy Navigation Limited (the “Company”) Annual Report on Form 20-F for the fiscal year ended December 31,

February 13, 2019 SC 13G/A

TNP / Tsakos Energy Navigation Ltd. / Kopernik Global Investors, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Tsakos Energy Navigation, LTD (Name of Issuer) Common Stock (Title of Class of Securities) G9108L108 (CUSIP Number) December 31, 2018 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

October 5, 2018 EX-99.2

2 Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Voyage revenues $ 123,927 $ 132,180 $ 249,651 $ 270,421 Less: Voyage Expenses (29,407 ) (28,121 ) (56,683 ) (58,204 ) Add: Representative operating expenses for bareboat char

EX-99.2 EXHIBIT 99.2 TSAKOS ENERGY NAVIGATION LIMITED THREE AND SIX MONTHS ENDED JUNE 30, 2018 Results of operations – management’s discussion & analysis (Percentage calculations are based on the actual amounts shown in the accompanying financial statements) Voyage revenues Voyage revenue earned for the three months ended June 30, 2018 and 2017: 2018 2017 $ million % of total $ million % of total

October 5, 2018 6-K

TNP / Tsakos Energy Navigation Ltd. FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October, 2018 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Ad

October 5, 2018 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS JUNE 30, 2018 AND DECEMBER 31, 2017 (Expressed in thousands of U.S. Dollars - except share and per share data) June 30, 2018 December 31, 2017 (UNAUDITED) ASSETS CURRENT ASSETS: Cash and cash equivalents $ 272,501 $ 189,763 Restricted cash 9,924 12,910 Accounts receivable, net 23,436 27,364 Capitaliz

October 5, 2018 EX-99.3

CAPITALIZATION

EX-99.3 EXHIBIT 99.3 CAPITALIZATION The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of June 30, 2018 on: • an actual basis; and • an as adjusted basis giving effect to (i) scheduled debt repayments of $56.4 million, (ii) the declaration and payment of a $4.4 million common share dividend, (iii) the payment of $6.6 mill

June 28, 2018 6-K

TNP / Tsakos Energy Navigation Ltd. FORM 6-K (Current Report of Foreign Issuer)

6-K 1 d548713d6k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June, 2018 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro,

June 28, 2018 EX-1.1

TSAKOS ENERGY NAVIGATION LIMITED 5,400,000 Shares Series F Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares $1.00 Par Value Per Share (Liquidation Preference $25.00 per share) UNDERWRITING AGREEMENT

EX-1.1 Exhibit 1.1 EXECUTION VERSION TSAKOS ENERGY NAVIGATION LIMITED 5,400,000 Shares Series F Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares $1.00 Par Value Per Share (Liquidation Preference $25.00 per share) UNDERWRITING AGREEMENT June 21, 2018 Morgan Stanley & Co. LLC 1585 Broadway, 29th Floor New York, NY 10036 UBS Securities LLC 1285 Avenue of the Americas New York,

June 27, 2018 EX-4.1

SERIES F

EX-4.1 Exhibit 4.1 ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS# SERIES F FIXED-TO-FLOATING RATE CUMULATIVE REDEEMABLE PERPETUAL PREFERRED SHARES PAR VALUE $1.00 Certificate Number ZQ00000000 THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ AND COLLEGE STATION, TX Shares **000000****************** ***000000***************** ****000000**************** *****000000***************

June 27, 2018 EX-3.3

Certificate of Designation of the 9.50% Series F Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares (filed as Exhibit 3.3 to the Company’s Form 8-A filed with the SEC on June 27, 2018 and hereby incorporated by reference)

EX-3.3 Exhibit 3.3 CERTIFICATE OF DESIGNATIONS OF SERIES F FIXED-TO-FLOATING RATE CUMULATIVE REDEEMABLE PERPETUAL PREFERRED SHARES (Par Value $1.00 Per Share) OF TSAKOS ENERGY NAVIGATION LIMITED TSAKOS ENERGY NAVIGATION LIMITED, a company organized and existing under the laws of the Islands of Bermuda (hereinafter called the “Company”), does hereby certify that pursuant to authority contained in S

June 27, 2018 8-A12B

Form 8-A

Form 8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 TSAKOS ENERGY NAVIGATION LIMITED (Exact Name of Registrant as Specified in its Charter) Bermuda N/A (State of Incorporation or Organization) (IRS Employer Identification No.) 367 Syng

June 25, 2018 424B5

5,400,000 Shares Tsakos Energy Navigation Limited Series F Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares (Liquidation Preference $25.00 Per Share)

Final Prospectus Supplement Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

June 21, 2018 FWP

Tsakos Energy Navigation Limited Series F Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares FINAL TERM SHEET Dated June 21, 2018 Issuer: Tsakos Energy Navigation Limited Securities Offered: Series F Fixed-to-Floating Rate Cumula

FWP Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Statement No.

June 21, 2018 424B5

Subject to completion, dated June 21, 2018

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-219569 The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. This prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the of

June 18, 2018 EX-99.3

CAPITALIZATION

EX-99.3 Exhibit 99.3 CAPITALIZATION The following table sets forth our (i) cash and cash equivalents, (ii) restricted cash and (iii) consolidated capitalization as of March 31, 2018 on: • an actual basis; and • as adjusted basis giving effect to (i) scheduled debt repayments of $35.0 million, (ii) prepayment of $181.2 million and drawdown of $162.6 million for the refinancing of eleven vessels, (i

June 18, 2018 6-K

TNP / Tsakos Energy Navigation Ltd. 6-K (Current Report of Foreign Issuer)

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June, 2018 Commission File Number 001-31236 TSAKOS ENERGY NAVIGATION LIMITED (Translation of registrant’s name into English) 367 Syngrou Avenue, 175 64 P. Faliro, Athens, Greece (Address of

June 18, 2018 EX-99.1

TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES

EX-99.1 Exhibit 99.1 TSAKOS ENERGY NAVIGATION LIMITED AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS MARCH 31, 2018 (UNAUDITED) AND DECEMBER 31, 2017 (Expressed in thousands of U.S. Dollars - except share and per share data) March 31, 2018 December 31, 2017 ASSETS CURRENT ASSETS: Cash and cash equivalents. $ 158,177 $ 189,763 Restricted cash 20,099 12,910 Accounts receivable, net 18,176 27,364 Capit

June 18, 2018 EX-99.2

1

EX-99.2 Exhibit 99.2 TSAKOS ENERGY NAVIGATION LIMITED THREE MONTHS ENDED MARCH 31, 2018 Results of operations – Management’s Discussion & Analysis Three months ended March 31, 2018 versus three months ended March 31, 2017 (Percentage changes are based on the actual amounts shown in the accompanying consolidated financial statements) Voyage revenues Voyage revenues earned in the first quarter of 20

April 27, 2018 EX-12.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.2 Exhibit 12.2 RULE 13a-14(a) CERTIFICATION I, Paul Durham, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements

April 27, 2018 EX-7

Statement regarding computation of ratio of earnings to fixed charges (filed herewith)

EX-7 Exhibit 7 Statement regarding computation of ratio of earnings to fixed charges Tsakos Energy Navigation Limited Computation of Ratio of Earnings to Fixed Charges (Expressed in thousands of United States Dollars, except ratios) Years Ended December 31, 2017 2016 2015 2014 2013 Earnings Income (loss) from continued operations (before noncontrolling interest) 9,185 56,495 158,423 33,718 (38,570

April 27, 2018 EX-15.2

Consent of Howe Robinson Partners (UK) Ltd. (filed herewith)

EX-15.2 Exhibit 15.2 Howe Robinson Partners (UK) Ltd 40 Gracechurch Street London EC3V 0BT Tel: +44 20 7488 3444 CONSENT OF HOWE ROBINSON PARTNERS Tsakos Energy Navigation Limited 367 Syngrou Avenue 175 64 P. Faliro Athens, Greece April 27, 2018 Ladies and Gentlemen: Reference is made to the Tsakos Energy Navigation Limited (the “Company”) Annual Report on Form 20-F for the fiscal year ended Decem

April 27, 2018 EX-12.1

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith)

EX-12.1 Exhibit 12.1 RULE 13a-14(a) CERTIFICATION I, Nikolas P. Tsakos, certify that: 1. I have reviewed this annual report on Form 20-F of Tsakos Energy Navigation Limited; 2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such state

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