The rupture, at a site about 30 miles southeast of Galveston, was leaking at a rate of about 500 gallons per day, said U.S. Coast Guard Petty Officer Mario Romero. He said a diving crew was being sent Wednesday to fix it.
Crews began skimming operations and would continue as long as the seas remained calm, Romero said.
The spill occurred after a portion of the High Island Pipeline System ruptured early Sunday. Pipeline owner Plains All American Pipeline shut down the line after detecting a pressure loss in the system, Romero said.