17. Related Parties

During 2018, 2017 and 2016, there were certain transactions between us and other companies our CEO either controlled or in which he had an ownership interest.  In addition, there were transactions with a company that employs the spouse of our CEO.  Our CEO owns an aircraft that the Company used and reimbursed him for such use and for his use pursuant to his employment contract.  Airplane services transactions were approximately $1.3 million, $1.2 million and $1.1 million for the years 2018, 2017 and 2016, respectively.  Our CEO has ownership interests in certain wells operated by us (such ownership interests pre-date our initial public offering).  Revenues are disbursed and expenses are collected in accordance with ownership interest.  Proportionate insurance premiums were paid to us and proportionate collections of insurance reimbursements attributable to damage on certain wells were disbursed.  A company that provides marine transportation and logistics services to W&T employs the spouse of our CEO.  The rates charged for these marine and transportation services were either equal to or below rates charged by non-related, third-party companies.   Payments to such company totaled $21.0 million, $22.8 million and $17.3 million in 2018, 2017 and 2016, respectively.  The spouse received commissions partially based on services rendered to W&T which were approximately $0.2 million in 2018 and 2017 and less than $0.2 million for 2016.  During 2018, an entity controlled by our CEO participated in the Senior Second Lien Note issuance for an $8.0 million principal commitment on the same terms as the other lenders.  See Note 4 for information on a related party transaction concerning Monza.