Bulk boat(aka)barge.

The first bulk transportation of oil in America was accomplished in wooden barges known as bulk boats. These were placed in operation on Oil Creek and the Allegheny River in 1861-62. The vessels were “decked over” to keep the contents from sloshing out. The deck also allowed the boatmen to better handle the sweeps and manage the barge. It was also quickly learned that the cargo space had to be fitted with a series of wooden bulkheads (baffles) so that the motion of the oil could be controlled.

A barges engine being pulled out of a river

Fun Fact: a barges engine could be bigger than a room

Fun Fact: Unlimited ship captains generally make between 120 and 200k a year.

The typical barge you would see on the Ohio River.

Barges are mostly for, transporting goods.