March 23, 2014 - 9:27 PM
TEXAS CITY, Texas - A barge that once carried some 900,000 gallons (3.4 million litres) of heavy tar-like oil was cleared Sunday of its remaining contents, a day after the vessel collided with a ship in the busy Houston Ship Channel and leaked as much as about a fifth of its cargo into one of the world's busiest waterways for moving petrochemicals.