 SAN ANTONIO--BUSINESS WIRE--The board of directors of NuStar Energy L.P. NYSE: NS announced the retirement of James Fully Clingman, Jr., effective October 27, 2021. We are truly grateful for Fullys service and commitment to NuStar for the last 15 years, said Bill Greehey, NuStars chairman of the board. He has been a tremendous asset to our board and to our company as he is not only a strong business and civic leader, but also a caring individual who really understands the importance 