We added new data labeled Transfers to crude oil supply to national and regional volumetric balance tables for petroleum and biofuels beginning with data released on August 31, 2023. Transfers to crude oil supply include barrels of unfinished oils (refinery feedstocks) and natural gas liquids that we identified as being added to crude oil supply by blending.
Transfers to crude oil supply first appear in Petroleum Supply Annual (PSA) data for January–December 2022. We also updated Petroleum Supply Monthly (PSM) data to show Transfers to crude oil supply for January–June 2023. In total, we have 18 months (January 2022–June 2023) of historical data for Transfers to crude oil supply.
We report barrels of Transfers to crude oil supply in PSA tables 1–13, PSM tables 1–25, and equivalent tables in the Petroleum Navigator.
We calculate barrels of Transfers to crude oil supply as follows.
Natural gasoline and unfinished oils
- Supply = sum of barrels produced, imports, and (for PADD data) net inter-PADD receipts.
- Disposition = sum of barrels added to stocks (stock change), inputs or net inputs, and exports.
- Balance item (Transfers to crude oil supply) = disposition minus supply.
- Product supplied assumed = zero.
Crude oil
- Supply = sum of barrels produced, imports, and (for PADD data) net inter-PADD receipts.
- Disposition = sum of barrels added to stocks (stock change), inputs, and exports.
- Transfers to crude oil = negative 1 times the sum of transfers to crude oil of natural gasoline and unfinished oils, plus production of ethane, propane, normal butane, and isobutane in Alaska.
- Balance item (adjustment) = disposition minus sum of supply and Transfers to crude oil.
- Product supplied assumed = zero.
Sourcekeys for the new data are provided.
Previous notice from July 31, 2023.
For more information on changes contact, eiainfopetroleum@eia.gov.