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Imperial Oil Shipping Co., Ltd.
C. O. Stillman - (1928-1937)
See also : The Leviathan of the Tankers    ( 5 Pages + Drawings )

The "C. O. Stillman" sunk by enemy action, after nearly three years of war service.
"C.O. Stillman" was the largest oil tanker in the world and carried nearly seven million gallons of oil.
Torpedoed in the Caribbean Sea on February 28, 1945.
No sisterships.
Tanker was named after ;
James Stillman (1850-1918)
James Stillman was a banker and financier who formed partnerships with many industrialists, most notably William Rockefeller
of Standard Oil. The financial institution he left at his death was the foremost commercial bank in the country.
 
Imperial Oil Company merchant ship "C. O. Stillman" with smaller ship "Imperial" in the foreground.

Additional Info by Starke & Schell Registers :

C.O. STILLMAN - 1928      BR   2M (aft)     (10)
16,436 GRT for International Petroleum Co., Ltd., London    565.7 x 75.6
Tanker built by Bremer Vulkan, Vegesack     (2)     #646     160498
1937 - Panama Transport Co., Panama     PA
Torp. and sunk by U 68, 6 June 1942, in 17.33N - 67.55W, voyage Aruba - New York.

The Miramar Ship Index for "C. O. STILLMAN"
IDNo:
1160498
Year:
1928
Name:
C. O. STILLMAN
Launch Date:
Type:
Tanker
Date of completion:
02.1928
Flag:
GBR
Keel:

Ton:
16436
Link:
-
DWT:
Yard No:
646
Length overall:
Ship Design:
LPP:
172.4
Country of build:
Beam:
23.0
Builder:
Bremer Vulkan
Material of build:
Location of yard:
Vegesack
Number of screws/Mchy/Speed(kn):
2D-10

Subsequent History:
-

Disposal Data:
Topedoed and sunk 17.33 N / 67.55 W, 06.06.1942 (30*)

ON
LR/IMO
ID
Year
Name
Tons
Change
Main Owner
160498
1160498
1928
C. O. STILLMAN
16436
-
Intnl. Petroleum Co.

Additional information from Uboat.net :

Name: C.O. Stillman
Type: Motor tanker
Tonnage: 13.006 tons
Completed: 1928 - Bremer Vulkan, Vegesack
Owner: Panama Transport Co (Standard Oil Co), Panama
Homeport: Panama
Date of attack: 6 Jun, 1942
Nationality: Panaman
Fate: Sunk by U-68 (Karl-Friedrich Merten)
Position: 17.33N, 67.55W - Grid ED 1484
- See location on a map -
Complement: 58 (3 dead and 55 survivors).
Convoy: -
Route: Aruba - New York
Cargo: 125.812 barrels fuel oil and 39 tons dry cargo
History: -
Notes on loss:
At 03.07 hours on 6 Jun, 1942, the unescorted C.O. Stillman (Master Daniel H. Larsen) was struck by one torpedo from U-68 on the
starboard side abaft the midship house setting the after end of the house on fire. The engines were secured and the most of the 47
crewmen, eight armed guards and three workaways from other tankers aboard abandoned ship in two lifeboats and four rafts. 20
minutes later another torpedo hit the ship on the starboard side forward of the engine room, showering the deck with fuel oil and
debris. The remaining men aboard jumped overboard and swam to the rafts, while the tanker sank within two minutes 60 miles
southwest of Puerto Rico. Three crew members were lost.
Just before dark on 7 June, the 22 crewmen and three armed guards on the four rafts were picked up by the US Coast Guard patrol
boat #83310 after she was notified by an Army aircraft, which had spotted the rafts. On 8 June, they were landed at Ponce, Puerto
Rico and were repatriated on the American steam passenger ship Seminole. The two lifeboats drifted until the dawn on 6 June and
then set sail for the Dominican Republic. One boat with 17 survivors landed at the Bay of Yuma and the other with 13 survivors at
La Romana.