Exxon Building LNG Plant 20 Miles Offshore NY

Exxon Mobil said Tuesday that it would like to build a $1 billion floating terminal for liquefied natural gas about 20 miles off the coast of New Jersey, a move meant to deflect safety and environmental concerns about proximity to populated areas.

The company plans to anchor a boatlike structure in the Atlantic Ocean to process natural gas imported by cargo ships from faraway suppliers in the Middle East, Europe and Africa.

The terminal, if approved, would connect through an underwater pipeline to an existing network that feeds New York and New Jersey, two of the top consumer markets in North America.

Exxon’s project is the latest of several dozen gas terminals that have been proposed in recent years in the United States. Energy specialists say more natural gas supplies will be needed to meet the growth in consumption and to make up for an expected drop in imports from Canada.

In many cases, energy companies have faced stiff opposition in finding sites for large new terminals. This has become one of the thorniest energy issues, especially since the attacks of Sept. 11, 2001, raised security concerns about cargo ships carrying liquefied gas near big cities.

Still, companies are slowly moving forward with their plans. Since 2002, federal and state authorities have approved 18 new liquefied gas terminals around the country, including 4 offshore, though most analysts do not expect all of them to be built.

While most of the projects are planned along the Gulf Coast, the northeastern corner of the country is attracting attention because of its reliance on natural gas and its large populations. Two terminals to be built off Massachusetts gained approval last year. For Exxon, going so far offshore is an effort to duck the vociferous opposition that has dogged projects on both coasts. Its project, called BlueOcean Energy, would be able to supply 1.2 billion cubic feet of natural gas a day, about 2 percent of the nation’s gas consumption — and enough to meet the needs of five million residential customers.

Exxon’s project is the third offshore terminal proposed for the greater New York region in recent years.

One proposal, to build a gas terminal in the middle of Long Island Sound, has aroused concern since its announcement in 2004 because of the impact it might have on fishing and boating; it is strongly opposed by shore communities and politicians.

That opposition could intensify in coming months as the project, which is known as Broadwater and is a joint venture by Royal Dutch Shell and TransCanada, is expected to receive notice about federal and state permits.

Another company, the Atlantic Sea Island Group, plans to build a terminal for liquefied natural gas on an artificial island about 14 miles south of Long Island, a project called Safe Harbor Energy.