0001193125-10-241344 Sample Contracts

TSAKOS ENERGY NAVIGATION LIMITED 6,726,457 Common Shares $1.00 Par Value Per Share UNDERWRITING AGREEMENT

Underwriting Agreement • October 29th, 2010 • Tsakos Energy Navigation LTD • Deep sea foreign transportation of freight • New York

• Contract Type
  Underwriting Agreement
• Filed
  October 29th, 2010
• Company
  Tsakos Energy Navigation LTD
• Industry
  Deep sea foreign transportation of freight
• Jurisdiction
  New York

Contract

Purchase Agreement • October 29th, 2010 • Tsakos Energy Navigation LTD • Deep sea foreign transportation of freight

• Contract Type
  Purchase Agreement
• Filed
  October 29th, 2010
• Company
  Tsakos Energy Navigation LTD
• Industry
  Deep sea foreign transportation of freight

PURCHASE AGREEMENT (the “Agreement”), dated as of October 27, 2010, between Tsakos Energy Navigation Limited, a Bermuda company (the “Company”), and the Purchasers identified on the signature page hereto (each, a “Purchaser” and, collectively, the “Purchasers”).