Washington Oil and Gas Wells Map
WellsMap USA maps 809 oil and gas wells in Washington, from Washington Geological Survey, Digital Data Series 21 records (updated September 2026). 30 are listed as active and 108 as plugged, abandoned or never drilled. Wells are spread across 32 counties and 295 operators.
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Washington wells by type
| Type | Wells | Share |
|---|---|---|
| Unknown type | 748 | 92% |
| Gas | 59 | 7.3% |
| Water | 2 | 0.2% |
Washington wells by status
| Status | Wells | Share |
|---|---|---|
| Unknown status | 671 | 83% |
| Plugged | 108 | 13% |
| Active | 30 | 3.7% |
Counties with the most oil and gas wells in Washington
| County | Wells | Active |
|---|---|---|
| Lewis | 195 | 28 |
| Grays Harbor | 129 | 0 |
| Whatcom | 102 | 0 |
| Clallam | 52 | 0 |
| Pacific | 43 | 0 |
| King | 41 | 2 |
| Benton | 37 | 0 |
| Pierce | 35 | 0 |
| Thurston | 28 | 0 |
| Jefferson | 26 | 0 |
| Yakima | 15 | 0 |
| Snohomish | 13 | 0 |
| Spokane | 12 | 0 |
| Kitsap | 11 | 0 |
| Grant | 9 | 0 |
| Skagit | 7 | 0 |
| Kittitas | 7 | 0 |
| Wahkiakum | 6 | 0 |
| Mason | 6 | 0 |
| Stevens | 6 | 0 |
Top oil and gas operators in Washington by well count
| Operator | Wells | Active |
|---|---|---|
| Continental Oil Co. | 67 | 0 |
| Shell Oil Co. | 59 | 0 |
| Washington Water Power Co. | 52 | 0 |
| Union Oil Co. of California | 39 | 0 |
| The Texas Co. | 26 | 0 |
| Washington Natural Gas Co. | 26 | 0 |
| Duncan Oil, Inc. | 22 | 0 |
| AMOCO Production Company | 15 | 2 |
| Standard Oil Co. of California | 11 | 0 |
| Puget Sound Energy | 11 | 11 |
| Pleasant Valley Gas and Oil Co. | 10 | 0 |
| Walla Walla Oil, Gas and Pipeline Co. | 10 | 0 |
| Humble Oil and Refining Co. | 9 | 0 |
| George A. Mottman | 9 | 0 |
| El Paso Products Co. | 8 | 0 |
| Puget Sound Energy-Jackson Prairie Gas Storage | 8 | 8 |
| Washington Natural Gas-Jackson Prairie Gas Storage | 7 | 7 |
| Whatcom Natural Gas Corp. | 7 | 0 |
| Hoh River Oil Co. or Mutual Exploration Co. | 6 | 0 |
| International Pipe Lines Co., Ltd. | 6 | 0 |
Washington wells drilled by decade
| Decade | Wells spudded |
|---|---|
| 1900s | 12 |
| 1910s | 35 |
| 1920s | 51 |
| 1930s | 141 |
| 1940s | 101 |
| 1950s | 166 |
| 1960s | 96 |
| 1970s | 72 |
| 1980s | 39 |
| 1990s | 29 |
| 2000s | 25 |
| 2010s | 1 |
Based on the 768 wells with a recorded spud date.
About this data
Well locations, types and statuses come from public records published by Washington Geological Survey, Digital Data Series 21, retrieved September 2026. Counties missing from the source records are assigned from each well's location. Records can be incomplete or out of date; check with the regulator before relying on them.