Helix Energy COO Cliff Chamblee to retire Helix Energy announced that effective May 11, Cliff Chamblee will retire after 36 years in the offshore services business and will resign as EVP and COO. Also effective May 11, Scotty Sparks will be promoted to the position of EVP– Operations. Scotty has been with Helix since 2001. He currently holds the office of VP– Commercial and Strategic Development, and has also served in various positions within Helix’s robotics subsidiary, including as SVP, during his tenure at Helix. Prior to that Scotty held various positions within the industry, including Operations Manager at Global Marine Systems.