[Worldometers] Data shown in the table is for 2016. Counter shows current estimate.
11 United States 35,230,000,000 bbl 2.1%
| Contrast with this published in early 2021: |
U.S. Crude Oil and Natural Gas Proved Reserves, Year-end 2020
[EIA] Proved reserves of U.S. crude oil and lease condensate declined 19%, from 47.2 billion barrels to 38.2 billion barrels at the end of 2020.
Proved reserves are estimated volumes of hydrocarbon resources that analysis of geologic and engineering data demonstrates with reasonable certainty 1 are recoverable under existing economic and operating conditions. Reserves estimates change from year to year because of:
- New discoveries
- Thorough appraisals of existing fields
- Production of existing reserves
- Changes in prices, costs, ownership, or planned infrastructure
- New and improved techniques and technologies
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