NASSCO

General Dynamics Nassco has begun constructing the second of three product tankers for SEACOR’s subsidiary Sea-Vista Newbuild III.

The new 50,000dwt tanker with 330,000 barrel cargo capacity is being constructed at Nassco shipyard in San Diego under Jones Act requirements.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

The vessel is based on the ECO MR Tanker design by DSEC, a subsidiary of South Korea’s Daewoo Shipbuilding & Marine Engineering (DSME).

General Dynamics Nassco vice-president and general manager Kevin Graney said: "We are pleased to begin construction on the second state-of-the-art Jones Act-qualified tanker for our customer, SEA-Vista.

"Nassco remains committed to building the most economical and environmentally sound products for Jones Act owners and operators, and these tankers exemplify that commitment."

The product tankers will deliver enhanced fuel efficiency with the support of a G-series, MAN ME, slow-speed main engine and an optimised hull form.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData
"Nassco remains committed to building the most economical and environmentally sound products for Jones Act owners and operators."

These tanker will also be equipped with a ballast water treatment system, offering reduced emissions.

In addition, they will feature conversion-capable, dual-fuel-capable auxiliary engines, allowing them to accommodate the future installation of an LNG fuel-gas system and tanks.

In May, Nassco laid keel for the first Sea-Vista ECO tanker at its shipyard in San Diego, California.

Meanwhile, the company also started construction of the fourth tanker ship ordered by American Petroleum Tankers (APT) in May this year.

This new vessel is part of an order from APT for five 610ft-long and 50,000dwt product carriers.


Image: Officials at the ceremony to mark construction of the second Sea-Vista tanker. Photo: courtesy of General Dynamics.

Ship Technology Excellence Awards - Nominations Closed

Nominations are now closed for the Ship Technology Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Dual winner of the 2025 Ship Technology Excellence Awards , Flyability’s Elios 3 UT drone is redefining ship inspections. See how class-approved LiDAR and UT data, collision-tolerant design and digital twins are replacing scaffolding and rope access with faster, safer remote inspection workflows.

Discover the Impact