Press Release

Exxon Valdez Spill, 25 Years Later

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VIDEO: Exxon Valdez Oil Lingers Decades Later

Just before midnight March 24, 1989, the oil tanker Exxon Valdez struck Bligh Reef in Alaska, causing the largest oil spill in U.S. history to that point. In the weeks that followed, a shocked world watched as the tanker spewed approximately 11 million gallons of oil into the formerly pristine and delicate Prince William Sound.

Marilyn Heiman, then working for the Alaska Legislature and now director of Pew's U.S. Arctic program, remembers that she began developing legislation to prevent a spill of that magnitude from ever happening again. She recalls waiting days for containment vessels to arrive and watching helplessly as the oil spread to beaches and killed hundreds of thousands of fish, birds, and other wildlife.

“The Exxon Valdez spill was truly devastating to the environment, the fishing industry, and the communities,” she says. “Prince William Sound is God's country, so full of life and so rich. What was happening was heart-wrenching.”

Photo credit: Exxon Valdez Oil Spill Trustees Council

The effects of the Exxon Valdez spill on the more than 1,300 miles of shoreline in the northernmost part of the Gulf of Alaska were horrendous. It:

  •   Devastated the lives and livelihoods of many of the region's residents.  
  •   Killed an estimated 250,000 seabirds, 2,800 sea otters, 300 harbor seals, 250 bald eagles, 15 to 22 killer whales, and billions of salmon and herring eggs.  
  •   Required roughly 10,000 workers, 1,000 boats, and 100 airplanes and helicopters for the cleanup effort.  
  •   Devastated Pacific herring and pigeon guillemot populations so much that they have not yet recovered.  
  •   Affected sea otters, Barrow's goldeneyes, and more than a dozen other species, which are still recovering.


Source: Exxon Valdez Oil Spill Trustee Council
The oil slick (blue areas) eventually extended 470 miles southwest from Bligh Reef.
The spill area ultimately totaled 11,000 square miles.
Source: Exxon Valdez Oil Spill Trustee Council.

The aftermath

In the months and years after this disaster, Congress, the George H.W. Bush administration, and the state of Alaska jumped into action. In August 1990, Congress passed the Oil Pollution Act, which, in combination with Alaska state laws passed after the spill, improved the nation's ability to prevent and respond to oil spills. This landmark legislation required many improvements in how the United States ships oil, such as requiring double-hull tankers, the best spill-response capability in the world, regional citizens' advisory councils, increased liability, and a “vessel of opportunity” program that trains and pays fishermen to respond to a spill in Prince William Sound.

In addition to these reforms, an executive order by the governor of Alaska required that two vessels escort every loaded tanker from Valdez out through Prince William Sound to Hinchinbrook Entrance. As the process evolved during the 1990s, the tugboats were replaced with a 210-foot escort response vessel and high-powered tractor tugs.

What's next?

Today two major challenges facing the Arctic must be addressed.

Increased vessel traffic
Melting sea ice in the Bering Strait is opening a new passageway for ship traffic, a trend that is expected to accelerate. Although shipping activity is light compared with other regions of the world, the capacity to provide aid and support for vessels in the strait is extremely limited, and responding to an oil spill in these remote and seasonally challenging waters is nearly impossible. Given the cultural, ecological, and economic importance of the region, the likely consequences of an accident are considerable.

The increasing activity makes this a critical moment for the United States to develop appropriate standards of care for vessel traffic in the Arctic. There are no regulations for vessel traffic in these waters, and setting “rules of the road” will ensure safer transport. Local communities should play a leadership role with other stakeholders in this effort.

Standards of care may include:

  • Vessel traffic lanes telling ships where to go.  
  • Areas to be avoided to keep ships away from sensitive marine habitat or hazardous areas.  
  • Speed limits to reduce the risk of striking slow-moving marine mammals, such as bowhead, gray, and humpback whales.  
  • A vessel tracking, compliance, and monitoring system, an Automatic Identification System-based monitoring structure that actively tracks vessels and enables greater information sharing among the U.S. Coast Guard, transiting ships, and local communities.  

Increased energy exploration
Today there is an increased push to drill offshore into ever deeper and riskier frontier waters of the Arctic. Those waters are ice-covered for eight to nine months of the year and in almost complete darkness for nearly three of those months. Even during the summer, when the ice pack has mostly receded, the Arctic experiences high seas, wind, freezing temperatures, dense fog, and floating ice hazards. Even more challenging, the major highways, airports, and ports that most Americans take for granted do not exist in the Arctic. The nearest Coast Guard base is more than 950 air miles away, and the closest major port is over 1,000 miles away. 

Alaska's Size, Compared With the Loew 48 States
Technology for extraction has far outstripped the quality of oil spill prevention and response capabilities. As we saw with the 2010 BP Deepwater Horizon spill, the response technology of skimmers, booms, dispersants, and burning has improved little in the 25 years since the Exxon Valdez disaster.

To protect the unique Arctic environment, the United States should adopt specific Artic standards to guide energy exploration, including:

  • Seasonal drilling: Arctic offshore drilling operations into hydrocarbon-bearing zones should be limited to periods when the rig and its associated spill-response system are capable of working effectively in Arctic conditions. This should include the time required to control a blowout by drilling a relief well to intercept the blown-out well and bring it under control before winter ice moves in.  
  • Arctic-class equipment: Vessels, drilling rigs, and facilities should be built to withstand maximum ice forces and harsh ocean conditions.  
  • Local staging of well-control equipment: Equipment needed to control a well during a spill, such as relief rigs and containment systems, should be designed for and located in Alaska's Arctic so they can be deployed promptly.  
  • Local staging of spill-response equipment: Equipment and adequately trained personnel need to be staged in Alaska's Arctic and should be capable of protecting sensitive shoreline and habitat.  
  • Redundant systems: Backup blowout preventers, remotely operated controls, and other redundant systems should be installed because harsh weather or ice cover can prevent access and the use of most equipment for many months of the year.

Pew is not opposed to offshore drilling, but a balance must be achieved between responsible energy development and protection of the environment. It is essential that appropriate standards be in place for safety and for oil spill prevention and response in the Arctic.

“There should be world-leading standards for any company operating in the remote, extreme, and vulnerable Arctic Ocean. This will provide regulatory certainty for the industry and ensure protection of the marine ecosystem,” Heiman says. “It will also reduce the chance of another catastrophic event like the Valdez spill.” 

Media Contact

Brandon MacGillis

Officer, Communications

202.887.8830