There are no ship
details included on this page but there follows
an extract from "The History of the Supply Ship"
which details the disappearance of the company.
The remaining OSA ships which are part of the
OIL fleet can be found on that page:
The purchase of OSA by OIL was one of the more
surprising events of the decade, and definitely
the most surprising of 1988. Everyone looked
back to the mid 1970s when the OSA fleet had
seemed to be in the ascendant, in the same way
as the Maersk fleet was to become at the turn of
the century. When the business needed
anchor-handlers OSA would turn out a few and
when it needed pipe-carriers, no problem, there
they were occupying most of the berths alongside
During the previous decade the OSA
anchor-handlers had lain in the River Tay, grey,
glamorous and menacing as they swung round their
anchors for weeks at a time waiting for the day
rates to rise to a point where some-one could
afford them. To the crews of the smaller ships,
and at that time that was everyone else, they
were known as “the Grand Fleet”.
OSA, and just to remind everyone - OSA stands
for the “Offshore Supply Association”, had a
tendency to build parallel ships for their main
partners, some of them ending in the letters
“turm” and others in the letters “tor”. Hence
the group of 9000 bhp anchor-handlers which
entered service in the mid 1970s were the
Schepelsturm, the Schnoorturm, the
Werdertor, the Herdentor and the
extremely large and efficient platform ships
were the Huntetor, the Faldentor,
the Kaubturm, and the Kreuzturm.
Some of these vessels still formed the backbone
of the OSA fleet when OIL made the purchase, and
large numbers of small pipe carriers were also
included in the deal.
OIL were very proud of the acquisition and were
able to continue their operations as a world
wide service provider. The deal was done for £28
million and it enhanced OIL’s increasing
reputation as a successful fire sale bidder.
The table below was inserted using the data
available in 1986 about the OSA fleet. There are
a lot of ships.
Updated 24th May 2013