Overseas Shipholding Group
Overseas Shipholding Group is a U.S. maritime transportation company operating oil tankers and oil tug-barges, with a business focused on U.S.-flag shipping.
Last updated August 26, 2026
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Overview
Overseas Shipholding Group, commonly known as OSG, is an American maritime transportation company headquartered in Tampa, Florida. Founded in 1948, the company developed from a shipowning and tanker operator into a major participant in the transportation of crude oil and petroleum products by sea. Its operations have included oil tankers and oil tug-barges serving the United States, including routes associated with Alaska and the lower forty-eight states. The company has also maintained offices in Tampa and Newark, Delaware, and has employed nearly 900 sea-based and shore-based personnel. A major expansion phase began in 1969 under the leadership of Raphael Recanati, when OSG started acquiring tanker vessels to transport oil from Alaska to the lower forty-eight states. This business connected the company to the development of Alaska’s oil industry and to the U.S. domestic tanker market. During the 1990s, OSG broadened its activities by acquiring luxury cruise liners. The cruise initiative did not perform as intended: in 1995, the cruise ships generated losses reported at more than $12 million. The losses contributed to a management crisis, and Raphael Recanati’s son Michael Recanati was reported to have been compelled to leave the company. OSG later faced a far more serious financial and governance crisis. In 2012, the company sought protection under Chapter 11 of the U.S. Bankruptcy Code after the Securities and Exchange Commission accused chief executive Morten Arntzen and chief financial officer Miles Itkin of falsifying financial statements. The bankruptcy and related securities proceedings led to a restructuring of the business and changes in the scope of its activities. In 2015, OSG brought claims against the former executives, who agreed to a settlement totaling $16.25 million. In 2017, the SEC securities-fraud matter was resolved through separate $75,000 fines paid by OSG and by former CFO Miles Itkin, according to the cited reference material. As part of its post-bankruptcy restructuring, OSG separated its international business and fleet in 2016. Those activities were placed into International Seaways, Inc., a separately incorporated company headquartered in New York City and listed on the New York Stock Exchange under the symbol INSW. OSG consequently concentrated on its U.S.-flag business rather than continuing to operate the larger international fleet within the same corporate structure. The company’s U.S. maritime portfolio includes oil tankers and oil tug-barges. Alaska Tanker Company became a wholly owned subsidiary in 2020, strengthening OSG’s connection to Alaska-related tanker transportation. By 2024, OSG was described as operating a fleet of twenty-four oil tankers and oil tug-barges. In July 2024, the company’s NYSE listing ended after Saltchuk, a Seattle-based transportation company, acquired OSG. The acquisition moved the company from public-market ownership into Saltchuk’s privately held transportation group while preserving OSG as an operating maritime business.
History
Overseas Shipholding Group was founded in 1948 in the United States and became an established operator in the maritime transportation sector. Its principal business has centered on owning and operating vessels used to move crude oil and petroleum products. The company has been headquartered in Tampa, Florida, with additional office operations in Newark, Delaware. Its workforce has included both shipboard personnel and shore-based employees supporting fleet management, commercial operations, technical functions, and corporate administration. The company’s modern tanker strategy took shape in 1969 under Raphael Recanati. OSG began acquiring tanker ships for the movement of oil from Alaska to the lower forty-eight states. This activity placed the company within the U.S. domestic tanker market and gave it a long-term connection to Alaska’s oil transportation infrastructure. Rather than operating solely as an international shipowner, OSG developed a substantial U.S.-oriented maritime business whose vessels and services were linked to domestic energy distribution. In the 1990s, OSG attempted to diversify into the luxury cruise business through the acquisition of cruise liners. The venture was unsuccessful. By 1995, the cruise ships had produced losses of more than $12 million. The poor results led to internal consequences, including the reported departure of Michael Recanati, Raphael Recanati’s son, from the company. The episode illustrated the commercial risk of moving beyond OSG’s established tanker and energy-shipping activities. A later crisis involved the company’s financial reporting. OSG filed for Chapter 11 bankruptcy protection in 2012 after the Securities and Exchange Commission accused CEO Morten Arntzen and CFO Miles Itkin of falsifying financial statements. The bankruptcy process formed part of a broader restructuring of the company. OSG subsequently pursued claims against the former executives, and in 2015 they agreed to a $16.25 million settlement with the company. The SEC-related securities-fraud allegations were separately resolved in 2017, when OSG paid a $75,000 fine and former CFO Miles Itkin paid a separate $75,000 fine. The restructuring also changed OSG’s geographic and corporate scope. In 2016, the company spun off its international business and large international fleet. Those activities were reorganized into International Seaways, Inc., a separately incorporated company based in New York City that became listed on the New York Stock Exchange under the symbol INSW. OSG therefore concentrated on its U.S.-flag business, reducing the distinction between its corporate identity and its domestic maritime role. OSG continued to build its U.S. tanker platform. Alaska Tanker Company became a wholly owned subsidiary in 2020, adding to OSG’s operating presence in the Alaska-related tanker segment. The company’s described fleet later comprised twenty-four oil tankers and oil tug-barges. These assets support domestic transportation of oil and related cargoes rather than a broad international liner network. In 2024, Saltchuk, a Seattle-based transportation company, acquired Overseas Shipholding Group. The transaction ended OSG’s status as a publicly traded company, and its stock was delisted from the NYSE in July of that year. Following the acquisition, OSG remained an active maritime operating company within Saltchuk’s transportation group. Publicly available reference material identifies the company’s fleet and principal business, but does not provide enough reliable information to document a current executive roster, detailed vessel names, revenue figures, or a standalone official website.
- 2024
Acquired by Saltchuk
[1]Saltchuk acquired OSG, and the company's NYSE listing was removed in July 2024.
- 2020
Alaska Tanker Company becomes wholly owned
[1]Alaska Tanker Company became a wholly owned subsidiary of OSG.
- 2017
SEC matter resolved
[1]OSG and former CFO Miles Itkin paid separate $75,000 fines to resolve the securities-fraud allegations described in the reference material.
- 2016
International business spun off
[1]OSG separated its international fleet and business into International Seaways and concentrated on U.S.-flag operations.
- 2015
Settlement with former executives
[1]Former executives agreed to pay OSG a settlement totaling $16.25 million in litigation related to the financial-reporting controversy.
- 2012
Chapter 11 bankruptcy filing
[1]OSG filed for Chapter 11 protection amid an SEC case involving alleged falsification of financial statements by senior executives.
- 1995
Cruise business records substantial losses
[1]The company's luxury cruise ships generated losses reported at more than $12 million, contributing to a management upheaval.
- 1969
Tanker expansion under Raphael Recanati
[1]OSG began acquiring tanker ships to transport oil from Alaska to the lower forty-eight states.
- 1948
Company founded
[1]Overseas Shipholding Group was established in the United States as a shipping company.
Products and positioning
A U.S.-flag maritime transportation operator focused on domestic oil tanker and tug-barge services, with particular historical ties to Alaska oil transportation.
Maritime transportation
Oil tankers
OSG operates oil tankers for the domestic movement of crude oil and petroleum-related cargoes. Tanker operations have been central to the company since its expansion under Raphael Recanati in 1969, when OSG acquired vessels for routes carrying Alaska oil to the lower forty-eight states. The company's post-2016 focus is primarily on the U.S.-flag tanker market.
Maritime transportation
Oil tug-barges
Oil tug-barges form part of OSG's U.S.-oriented fleet and support coastal and domestic petroleum transportation. They complement the company's conventional tanker operations and reflect its focus on serving energy-shipping requirements within the United States rather than maintaining the broad international fleet that was separated in 2016.
Subsidiary and tanker operations · 2020
Alaska Tanker Company
Alaska Tanker Company is a wholly owned OSG subsidiary since 2020. It represents an important connection to OSG's historical Alaska tanker business and forms part of the company's U.S.-flag maritime platform.
Controversies
2017
SEC securities-fraud settlement
The SEC-related allegations were resolved through separate $75,000 fines paid by OSG and former CFO Miles Itkin. The company had also reached a separate $16.25 million settlement with former executives in 2015.
2012
Financial-reporting allegations and Chapter 11 bankruptcy
OSG filed for Chapter 11 bankruptcy protection after the SEC accused CEO Morten Arntzen and CFO Miles Itkin of falsifying financial statements. The episode became the central governance and financial controversy in the company's history.
Brand decisions
2024
Acquisition by SaltchukM&ABackground
OSG was operating as a U.S.-focused maritime transportation company with a fleet of oil tankers and oil tug-barges.
Action taken
Seattle-based transportation company Saltchuk acquired Overseas Shipholding Group.
Aftermath
OSG left the public markets, with its NYSE stock delisted in July 2024, and became part of Saltchuk's private transportation group.
2020
Make Alaska Tanker Company wholly ownedM&ABackground
OSG maintained a longstanding connection to Alaska-related oil transportation and sought to reinforce its U.S.-flag operating platform.
Action taken
Alaska Tanker Company became a wholly owned subsidiary of OSG.
Aftermath
The transaction strengthened OSG's control of a tanker business associated with Alaska and domestic U.S. shipping.
2016
Concentrate on the U.S.-flag businessStrategyBackground
Following restructuring after the bankruptcy period, OSG reassessed the scope of its fleet and operations.
Action taken
The company spun off its international business and large international fleet into International Seaways, Inc., retaining a focus on U.S.-flag maritime transportation.
Aftermath
OSG became more narrowly identified with domestic U.S. tanker and tug-barge operations, while the international business continued under a separate corporate entity.
Recent events
- 2024
Saltchuk acquires Overseas Shipholding Group[1]
M&A · Leadership change · Other
Seattle-based transportation company Saltchuk acquired OSG. The transaction ended OSG's public-market status and was followed by the delisting of its stock from the New York Stock Exchange in July 2024.
- 2020
Alaska Tanker Company becomes a wholly owned OSG subsidiary[1]
M&A
Alaska Tanker Company became wholly owned by Overseas Shipholding Group, reinforcing OSG's U.S.-flag tanker presence and its historical connection to Alaska-related oil transportation.
- 2016
OSG separates its international fleet and business into International Seaways[1]
M&A · Other
As part of its restructuring, Overseas Shipholding Group spun off its international fleet and related business into International Seaways, leaving OSG focused on its U.S.-flag maritime operations.
Sources4 sources
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