Guest Post: Shipping Risks in the Supply Chain

Prof. Howard Weiss shares his insights with our readers monthly.

Table 11.3 in the Supply Chain Management chapter in your Heizer/Render/Munson textbook discusses supply chain risks and tactics to minimize the risks. One of the risks that is mentioned is that distribution containers can be damaged, delayed or lost at the following points:

  • Sitting at a container yard
  • Handling at a container yard
  • Loading or unloading onto/from truck, train or ship
  • Enroute on truck, train or ship

Consider the three major modes of shipping – sea, rail and road and their associated risks. Many trillions of dollars in goods are transported via all modes annually.

Maritime Shipping. Currently there are about 6,000 container ships in operation globally. The largest of these can carry 24,000 twenty-foot containers or 12,000 forty-foot containers.

During the last decade an average of 1,300 containers were lost at sea. In 2022, 661 containers were lost. In 2024,  576 containers that were lost. A notable cause of container loss is severe weather. In the 2024, three incidents off the Cape of Good Hope resulted in losses of 99, 44, and 46 containers, respectively. The region is known for its rough seas. However, due to Houti terrorists in Yemen, more ships are rerouting around Africa instead of passing through the Red Sea, increasing exposure to such risks. (About 1/3 of lost containers are eventually recovered).

Trucking. Every year in the U.S., 3.5 million truckers travel 200 billion miles carrying $720 billion worth of goods. This is more than any other mode of shipping. Shipping containers by truck presents a different risk profile. While containers are rarely lost entirely, they are susceptible to damage and may be involved in traffic accidents, potentially causing property damage or hazardous material spills. There has been an average of 100,000 truck crashes per year.

Train Transport. Rail freight in the U.S. accounts for $210 billion worth of goods each year. The risks when using rail transportation are very similar to those with trucks. The key risks are derailments leading to significant damage and delays, cargo damage or release of hazardous materials and logistical disruptions due to infrastructure failures or collisions. The average number of rail accidents over the past decade has been 1,850.  

Regardless of the mode of transportation, most containers are insured against loss and salvage operations will be conducted especially when hazardous materials are involved.

Classroom discussion questions:

  1. What was the most expensive shipping disaster in the past decade?
  2. What can be done to lessen trucking losses?

OM in the News: Where To Hold All the Oil Inventory?

Rail tanker cars sit on tracks at the Red River Supply rail yard in Williston, N.D
Rail tanker cars sit on tracks at the Red River Supply rail yard in Williston, N.D

“The U.S. is so awash in crude oil that traders are experimenting with new places to store it: empty railcars,” writes The Wall Street Journal (Feb. 29, 2016). This is a great story to share with your students when you cover holding costs in Chapter 12, Inventory Management. Thousands of railcars ordered up to transport oil are now sitting idle because current ultralow crude prices have made shipping by train unprofitable. Meanwhile, traditional storage tanks are running out of room as U.S. oil inventories swell to their highest level since the 1930s.

Some are calling the new practice “rolling storage”—a landlocked spin on the “floating storage” producers use to hold crude on giant oil tankers when inventories run high. Energy Midstream, a Texas trading company, stored its ultralight oil on Ohio railcars last month for about 15 days before shipping it to a buyer in Canada. The oil has to go somewhere. The surge in shale-oil production has created a massive glut that the industry is struggling to absorb. BP’s CEO just joked in a speech that by midyear, “every storage tank and swimming pool in the world will be filled with oil.”

The cheapest form of storage—underground salt caverns—can cost 25 cents a barrel each month, while storing crude on railcars costs about 50 cents a barrel and floating storage can cost 75 cents or more. (The cost estimates don’t include loading and transportation.) Railcars hold 500-700 barrels of oil, less than a cavern, tank or ship can store. The plunge in oil prices brought the demand for railcars to deliver oil to a halt. There are now as many as 20,000 tank cars—1/3 of the North American fleet for hauling oil—parked in storage yards or along unused stretches of tracks. The disappearance of available storage is akin to a coloring book where nearly all the white space has been filled in.

Classroom discussion questions:

  1. Compare the options for storage of excess oil.
  2. What are companies doing with unwanted oil already loaded on tankers en route to their destinations?