PIN OAK INVESTMENT ADVISORS INC's ownership history for NBR

PIN OAK INVESTMENT ADVISORS INC currently holds 350 shares with a market value of $30. It started holding NBR on 2026-03-31. At its peak, it held 350 shares on 2026-03-31. Its highest holding value was $30 on 2026-03-31. At its lowest, it held 350 shares on 2026-03-31, with a value of $30 on 2026-03-31.