Going by Dates the one up the Gut could be the GUNVOR BROVIG, a Tanker of 12,111 Tons which arrived on the 15th December 1975 or more likely the Indian Ore/Oil Carrier VARUNA KANGHAN of 16,785 tons which arrived on the 23rd February 1976.
Smashing picture though Harold.
Never guessed it was you...
Paul Hood. + WSS Tyneside Branch Hon Sec.