The below OPEC charts were taken from data in the OPEC Monthly Oil Market Report. All data is through March 2019 and is in thousand barrels per day.
There was another big decline in OPEC production in March, down 534,000 barrels per day.
The decline was mostly Saudi Arabia, Venezuela, and Iraq.
Iran, Libya and Venezuela are exempt from quotas. Everyone except Saudi Arabia are near their quota. Saudi is over half a million barrels per day below their quota.