US Oil Reserves by State
Texas holds the most US crude oil proved reserves at 19,644 million barrels, followed by New Mexico (7,068 million) and North Dakota (3,867 million). The US total was 45,951 million barrels (46.0 billion) at year-end 2024 — figures from EIA's Annual Reserves Report, the only comprehensive state-by-state source.
US States by Crude Oil Proved Reserves
Million barrels · year-end 2024| # | State | MMbbl | Reserves |
|---|---|---|---|
| 1 | Texas ⓘ | 19,644 | |
| 2 | New Mexico ⓘ | 7,068 | |
| 3 | North Dakota ⓘ | 3,867 | |
| 4 | Alaska ⓘ | 3,124 | |
| 5 | Oklahoma ⓘ | 1,631 | |
| 6 | Colorado ⓘ | 1,261 | |
| 7 | California ⓘ | 1,207 | |
| 8 | Wyoming ⓘ | 1,092 | |
| 9 | Utah ⓘ | 549 | |
| 10 | Ohio ⓘ | 476 | |
| 11 | Montana ⓘ | 391 | |
| 12 | Louisiana ⓘ | 310 | |
| 13 | Kansas ⓘ | 211 | |
| 14 | West Virginia ⓘ | 151 | |
| 15 | Mississippi | 56 | |
| 16 | Alabama | 45 | |
| 17 | Michigan | 45 | |
| 18 | Arkansas | 32 | |
| 19 | South Dakota | 10 | |
| 20 | Nebraska | 9 | |
| — | Federal offshore (not a state) ⓘ | 4,626 |
Crude oil and lease condensate proved reserves, from the EIA's Annual Reserves Report (Form EIA-23L), hover ⓘ for per-state notes. States with reserves under ~10 million barrels or with no reported crude reserves are omitted. See also US oil production, world reserves by country and how US reserves have changed since 1963.
State Oil Reserves FAQ
Which US state has the most oil reserves?
Texas holds the most US crude oil proved reserves at about 19,644 million barrels (year-end 2024) — roughly 43% of the entire US total — driven by the Permian Basin. New Mexico (7,068 million) and North Dakota (3,867 million) rank second and third.
How much oil does the US have in reserve?
The US had about 45,951 million barrels (46.0 billion) of proved crude oil and lease condensate reserves at year-end 2024, per EIA's Annual Reserves Report. That is roughly 3% of the ~1.74 trillion barrels held worldwide — the US ranks among the top producers precisely because it extracts aggressively, not because it holds outsized reserves.
Why did Texas and North Dakota's reserves fall while New Mexico's rose?
Shale reserves are revised every year as drilling results, prices and well performance come in — a state can post a large net decline even while still producing at record rates, simply because that year's production and downward revisions outpaced new extensions. New Mexico's Permian (Delaware sub-basin) acreage has been the fastest-growing major reserve base in recent years, while Texas and North Dakota saw larger revisions and divestitures than new bookings.
Are Gulf of America federal offshore reserves counted here?
No — this table covers only reserves attributed to a state. Federal offshore waters (mostly the Gulf of America) held about 4,626 million barrels at year-end 2024, which would rank second behind Texas if counted as a single region, but it isn't assigned to any state.