Around 1866, early oil producers in Pennsylvania came to the conclusion that shipping oil in a variety of different containers was causing buyer distrust. They decided they needed a standard unit of measure to convince buyers that they were getting a fair volume for their money, and settled on the standard wine tierce, which was two gallons larger than the standard whisky barrel. The "Weekly Register", an Oil City, Pennsylvania newspaper, stated on August 31, 1866 that "the oil producers have issued the following circular":