Contact Investor Relations

Mark Peterson
Vice President, Corporate Development and Investor Relations
+1 713.329.4507
InvestorRelations@oceaneering.com

Transfer Agent Information

For inquiries related to stock certificates, including changes of address, please contact:

Computershare
PO Box 505000
Louisville, KY 40233-5000

Overnight Deliveries:
462 South 4th Street, Suite 1600
Louisville, KY 40202

Oceaneering Account Information
NYSE Stock Ticker: OII
computershare.com/investor
Telephone: +1 781.575.2879 or
+1 877.373.6374
Fax: +1 781.575.3605
Hearing Impaired/TDD: +1 800.952.9245