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Tidewater Corporate Officers

John T. Rynd - President, CEO and Director

Mr. John Rynd graduated from Texas A&M University with a Bachelor of Arts degree in Economics.


Mr. Rynd previously served as Chief Executive Officer and President, and as a director of Hercules Offshore from 2008 through 2016.  Prior to his time with Hercules, Mr. Rynd spent 11 years with Noble Drilling Services, Inc., where he served in a variety of management roles.  Earlier in his career, he served in various roles of increasing levels of responsibility with Chiles Offshore and Rowan Companies.


Mr. Rynd served as Chairman of the National Ocean Industries Association (NOIA) from 2014-15 and currently holds an Ex-Officio position on the Executive Committee.  He formerly served on the Board of Directors of Fieldwood Holdings LLC, and was on the Board of Directors of Hornbeck Offshore, Inc. from 2011 to February 2018.


Mr. Rynd  lives in Houston, Texas with his wife.



Jeffrey A. Gorski - Executive Vice President and Chief Operating Officer

Jeff graduated from the University of Minnesota with a Bachelor of Science degree in Geological Engineering in 1982, and he currently serves on the Dean’s Advisory Board for the College of Science and Engineering. Jeff also completed the Harvard Advanced Management Program in 2013.

Jeff joined Tidewater in January 2012 as a Senior Vice President, responsible for the company’s operations in the United States and its engineering and technical services group. He brings to Tidewater over 25 years of domestic and international experience within the oil and gas industry, primarily with Schlumberger. Jeff held a variety of positions within Schlumberger, including, most recently, Vice President of Global Accounts. He also served, prior to his last position, as Vice President, Southeast Basin – USA and Vice President of Industry Affairs – North America, with additional prior positions including responsibilities in Rio de Janeiro, Brazil and Melbourne, Australia.

On June 1, 2012, Jeff was promoted to Executive Vice President and Chief Operating Officer of Tidewater responsible for worldwide operations.

Jeff is an active member of various industry professional societies and trade association and currently serves on the Board of Trustees for Spindletop Charities, Inc., Board of Directors for the Palmer Drug Abuse Program and Offshore Energy Center.

Jeff lives in Houston, Texas with his wife and their two children.

Quintin V. Kneen - Executive Vice President and Chief Financial Officer

Mr. Kneen served as GulfMark Offshore’s President and Chief Executive Officer of the Company since June 2013. Mr. Kneen joined GulfMark in June 2008 as the Vice President – Finance and was named Senior Vice President – Finance and Administration in December 2008. He was subsequently appointed as the Company’s Executive Vice President and Chief Financial Officer in June 2009 where he worked until his appointment as Chief Executive Officer. Previously, he was Vice President-Finance & Investor Relations for Grant Prideco, Inc., serving in executive finance positions at Grant Prideco since June 2003. Prior to joining Grant Prideco, Mr. Kneen held executive finance positions at Azurix Corp. and was an Audit Manager with the Houston office of Price Waterhouse LLP. He holds an M.B.A. from Rice University and a B.B.A. in Accounting from Texas A&M University, and is a Certified Public Accountant and a Chartered Financial Analyst.

Bruce D. Lundstrom - Executive Vice President, General Counsel and Secretary

Bruce earned his Bachelor of Science degree in Accounting with Highest Honors from the University of Illinois in 1985, and in 1988 graduated cum laude from Northwestern University School of Law. Bruce is a member of the State Bar of California, the Illinois CPA Society, the Association of Corporate Counsel and the Texas General Counsel Forum.

Following a 10-year career in the energy industry where he had both domestic and international experience, Bruce joined Tidewater in September 2007 as Senior Vice President, General Counsel and Secretary. In August 2008 he was promoted to Executive Vice President, General Counsel and Secretary. He is responsible for the Legal and Insurance staffs of the company, and is Tidewater’s Chief Compliance Officer.

Mr. Lundstrom was the recipient of the Houston Business Journal’s Best General Counsel award in 2015.

Bruce lives in Houston, Texas, with his wife.

David E. Darling - Vice President and Chief Human Resources Officer

Mr. Darling joins Tidewater with over 24 years of domestic and international human resources experience, most recently as Senior Vice President and Chief Human Resources Officer for GulfMark Offshore, Inc., where he was the Human Resource Director since 2007. Prior to GulfMark, he served in executive human resources roles with Rigdon Marine and a subsidiary of Ford Motor Company. Mr. Darling has additional offshore vessel industry experience as a Vessel Master and Operations Manager.

Mr. Darling earned his Bachelor of Science in Human Resources Management from Brenau University and his Master of Science in Human Resources Management and Labor Relations from the New York Institute of Technology.

Mark A. Handin - Vice President

Mark is a 1991 graduate of Boston University with a B.A. in Economics, and earned his Master of Business Administration from the University of Texas at Austin in 1996. In 2013, he successfully completed the Advanced Management Program at Harvard Business School.

Mark joined Tidewater in 1996 as a Commercial Representative in the Company’s Southeast Asian Operations, based in Singapore. Mark then held subsequent management positions in the Company’s Mexico and Brazil operations, before being promoted in 2001 to Area Manager in charge of Company operations in Trinidad. Thereafter, he held similar Area Manager positions in Venezuela, Brazil, and Southeast Asia. In 2009, he was promoted to the position of Regional Manager for Tidewater’s business activities in Europe and Africa, and in 2011, he was promoted to Vice President – Operations, with continued supervisory responsibilities over company operations in the Europe and Africa region.

In 2016, Mark returned to the United States to serve as the company’s Vice President – Operations for the Americas region, and in 2017 he also re-assumed responsibilities for the company’s Sub-Saharan Africa business in his current role as Vice President – Operations for the Americas and West Africa.

Mark is also formerly a licensed Master of commercial passenger vessels. He is currently based in Houston, Texas, where he lives with his wife and their three children.

Lee Johnson - Vice President and Chief Information Officer

Lee Johnson has extensive experience in delivering technology automation and streamlined business processes to achieve organizational efficiencies and digital transformations. Previously, Mr. Johnson was SVP & Chief Information Officer for GulfMark Offshore since 2009 and has held CIO leadership positions at Tatum LLC, eCommLink, Evercom and Nortel Networks.

Mr. Johnson is an inventor on nine technology patents and won Nortel Networks President’s Award for Excellence for leading the systems consolidation of multiple business units achieving savings of $50M. In 2017, the GulfMark IT and business team was selected as a CIO 100 award winner, recognizing GulfMark as one of the top 100 organizations around the world that exemplify the highest level of operational and strategic excellence in information technology. This team award was for delivering structural efficiency gains for the business through automation, process optimizations and operational scalability.

Mr. Johnson has a Bachelor of Science degree from Pennsylvania State University and attended the Master’s program in Computer Science with concentration in Software Engineering at Southern Methodist University.

Matthew A. Mancheski - Vice President, Investor Relations and Corporate Development

Matt is a 1997 graduate of the University of New Orleans with a degree in Finance, and received his MBA from Tulane University in 2008. Following an 11-year career in healthcare finance, Matt joined Tidewater as Senior Director of Strategic Planning and Financial Analysis in April 2008. In March 2010, Matt was promoted to Vice President – Chief Information Officer and Chief Strategic Planning Officer responsible for overseeing information technology, software applications and all strategic planning initiatives for Tidewater. In August 2011, Matt assumed responsibility for Tidewater’s U.S.-based operations, and in June 2012 was transferred to Rio de Janeiro, Brazil to oversee Tidewater’s operations throughout the Americas. In 2016, he was transferred to Amsterdam, Netherlands to manage the Europe and Africa regions, which consisted of all operations in the North Sea, Mediterranean and East/West Africa markets. In 2018, Matt has relocated to Houston, Texas to undertake corporate initiatives focusing on business process improvement and strategic developments. Currently, as Vice President, Investor Relations and Corporate Development, Matt is responsible for enabling communication with the financial community, as well as coordinating the strategic growth initiatives for Tidewater through asset acquisitions, corporate M&A, and strategic partnerships.

Matt is a Certified Public Accountant and lives in Houston, Texas, with his wife and their three children.

Mark D. Parker - Vice President, Corporate Taxation

Mr. Parker joins the company with over 13 years of experience in domestic and international accounting and taxation. Prior to his appointment with Tidewater, Mr. Parker served as Senior International Tax Manager for Rowan Companies Inc. since 2008, where he was responsible for global tax planning. Mr. Parker held several senior tax consultant roles with Deloitte Tax LLP before joining Rowan.

Mr. Parker earned his Bachelor of Science in Accounting from McNeese State University and his Master of Science in Tax Accounting from the University of New Orleans.

Sam R. Rubio - Vice President, Chief Accounting Officer and Controller

Previous to joining Tidewater, Samuel R. Rubio held the position of Senior Vice President – Chief Financial Officer for GulfMark Offshore since April of 2018. Prior to that, Mr. Rubio served as the Vice President – Controller and Chief Accounting Officer and then Senior Vice President in the same function for 10 years. Mr. Rubio joined GulfMark in 2005 as the Assistant Controller and was subsequently promoted to Controller in 2007.

Mr. Rubio has a Bachelor of Business Administration degree from Sul Ross State University and is a Certified Public Accountant and a member of both the American Institute of Certified Public Accountants and the Texas Society of Certified Public Accountants. In addition, he has over 25 years of experience in accounting at both operating division and corporate levels as well as the management of accounting organizations.

Darren J. Vorst - Vice President and Treasurer

Darren earned his Bachelor of Business Administration from Texas A&M University in 1987, and worked for six years at Price Waterhouse in Houston, including his final role as Audit Manager. He joined Tidewater as Treasurer in January 2009, following 14 years in various senior financial positions with offshore drillers Transocean (1993 to 2002) and TODCO (2003 to 2007). His many roles at Transocean included regional finance manager of the shallow water division, corporate senior strategic planning analyst, director of budgeting and forecast, Middle East region controller and manager of internal audit. At TODCO, Darren served as Controller until July 2003, when he assumed the role of Treasurer. At Tidewater, he has responsibility for all treasury and banking functions.

Darren lives in Houston, Texas with his wife and their four children.