Any number of sources uncritically repeat the OSIR volume (about 60,000 tons),
and as a result this spill shows up in almost all the biggest spill lists.
This includes MIT79 which lists this as the Othello-Katelysia collision.
Interestingly many environmental sites
extract the 30.7 MM gallon (about 100,000 tons) figure
from the above ETC quote while failing to mention
the first three sentences in the quote
nor the fact that there was no tanker named Othello at the time,
certainly none that was anywhere near 60,000 tons deadweight.
There was a small Wallenius tanker called Otello
at the time in the Baltic Sea trade.
The only Otello in Miramar that qualifies
is a 1969 built Swedish tanker, dwt=4225, grt=2671.
LR number 7004330.
The Katelysia did exist;
she was an 18,170 dwt Shell tanker, built 1954.
The best source we have is the Swedish Transport Law commentary,
which makes it clear that the collision was
between the 18,000 ton Shell tanker and a smaller, newer tanker called Otello.
The collision occured well within the Stockholm archipelago
an area into which ships larger than the Katelysia would not nor could not go.
Clearly, the OSIR volume is nonsense.
A 60,000 ton spill -- twice the size of the Valdez --
in a Swedish bay right next to Stockholm
would go not unnoticed by the Swedish Coast Guard,
not to mention bringing Viking wrath down on the whole tanker world.
The Shell K-class were well sub-divided,
with a 3x11 tank arrangement.
There is a photo of a damaged tanker in dock in Rotterdam
which we think is the Katelysia.
The damage in the photo is on the starboard bow,
and involves at most the forwardmost starboard cargo tank.
The indent indicates that the damage on the other ship
probably involved only the other ship's FP tank.
The damage is consistent with both the Swedish Law
collision scenario and the Swedish Coast Guard's
estimate of the spill volume.
CTX's guess is that a typo in the original Golub
Oil Spill Intelligence Report turned a 300T spill into a top 20 spill,
inflating its volume by a factor of 200 to 300.
Fingas in a 1998 paper on in-situ burning has a table on historical burns of spills.
An entry described as Othello/Katelysia says oil burned among ice and in pools
But Fingas gives no volume.