|  Definitions, Sources and Explanatory Notes |
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|  Category:   | Petroleum Prices                                         |
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|  Topic:      | Domestic Crude Oil First Purchase Prices by Crude Stream |
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|   Definitions |  |
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| Key Terms                     | Definition                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
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| Crude Oil                     | A mixture of hydrocarbons that exists in liquid phase in natural underground reservoirs and remains liquid at atmospheric pressure after passing through surface separating facilities. Depending upon the characteristics of the crude stream, it may also include: Small amounts of hydrocarbons that exist in gaseous phase in natural underground reservoirs but are liquid at atmospheric pressure after being recovered from oil well (casinghead) gas in lease separators and are subsequently commingled with the crude stream without being separately measured. Lease condensate recovered as a liquid from natural gas wells in lease or field separation facilities and later mixed into the crude stream is also included;  
Small amounts of nonhydrocarbons produced with the oil, such as sulfur and various metals;
Drip gases, and liquid hydrocarbons produced from tar sands, oil sands, gilsonite, and oil shale.
Liquids produced at natural gas processing plants are excluded. Crude oil is refined to produce a wide array of petroleum products, including heating oils; gasoline, diesel and jet fuels; lubricants; asphalt; ethane, propane, and butane; and many other products used for their energy or chemical content. |
| Domestic                      | Crude oil produced in the U.S. or from its "outer continental shelf" as defined in 43 U.S.C. 1331.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| First Purchase (of Crude Oil) | An equity (not custody) transaction involving an arms-length transfer of ownership of crude oilassociated with the physical removal of the crude oil from a property (lease) for the first time.A first purchase normally occurs at the time and place of ownership transfer where the crude oil volume sold is measured and recorded on a run ticket or other similar physical evidence of purchase. The reported cost is the actual amountpaid by the purchaser, allowing for any adjustments (deductions or premiums) passed on to theproducer or royalty owner.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| For definitions of related energy terms, refer to the   EIA Energy Glossary. |
|  	Sources |
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|  | Energy Information Administration, Form EIA-182, "Domestic Crude Oil First Purchase Report." (Forms/Instructions, Background, Survey Methodology and Statistical Details) |
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|  	Explanatory Notes |
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|  | Values shown for the current month are preliminary.  Values   shown for the previous month may be revised to account for late submissions   and corrections. Final revisions to monthly and annual values are available upon publication of the June Petroleum Marketing Monthly. Annual averages that precede the release of the June Petroleum Marketing Monthly are calculated from monthly data. Data through 2021 are final.  
  For purposes of this survey, the United States includes the 50 States, the outer continental shelf,  and the District of Columbia. |
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