31.   He said that judging from the direction the oil is coming from, it would have been a spill from a ship.

32.   Last year was the first time in U.S. history that more than half the oil used domestically came from foreign sources.

33.   Most analysts said they are unsure of how much new oil the new ceiling will produce, but many think some new oil will come onto the market.

34.   Officials believed that the oil had come from an unidentified leaking ship.

35.   Officials believed that the oil had come from a leaking ship, but could not identify it.

36.   Prudhoe Bay and smaller fields are being drained, and the oil that remains comes out of the ground more slowly.

37.   Russian officials said the oil came from Iran.

38.   The coast guard suspects the oil came from a ship that had cleaned its tanks, according to the Swedish news agency TT.

39.   The oil came from a tanker that collided with a freighter last Wednesday.

40.   The oil came from ships washing it out at sea.