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 of Tsakos Energy Navigation Limited (the “Company”) on Form 20-F for the period ending December 31, 2009 as filed with the Securities and Exchange Commission on April 9, 2010, as amended by Amendment No. 1 to the Form 20-F filed on the date hereof (the “Report”), I, Nikolas P. Tsakos, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that, based on my knowledge:
| (1) | The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| (2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
/s/ Nikolas P. Tsakos |
| Nikolas P. Tsakos |
| President and Chief Executive Officer |
| Date: October 25, 2010 |
