Business Gregory A. Korbecki Posted by Who's Who Site Administrator on May 28, 2018September 16, 2019 Most Recent Title: Senior Vice President Company: Unocal Refining and Mktg. Industry: Business Years in Industry: 40 Years affiliated with Marquis Who’s Who: 31 Contact Gregory A. Korbecki: Name(required) Email(required) Website Comment(required) Submit Δ Share this:TwitterFacebookLinkedInLike this:Like Loading...