Oil & gas wells in Colusa County, CA
1,271 catalogued wells in Colusa County, California, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Colusa County, California has 1,271 catalogued oil & gas wells: 141 active (11%), 883 plugged & abandoned (69%) and 8 documented orphans. It ranks 13th of the 39 California counties WellCensus profiles by well count and holds 0.5% of the state's 242,471 catalogued wells.
Catalogued wells
1,271
Active
141
Plugged
883
Documented orphans
8
What is the status of oil and gas wells in Colusa County?
11% of Colusa County's wells are active, 11 percentage points below the California share of 22%. 69% are plugged & abandoned, against 60% statewide and 47% nationally. 187 wells (15%) are shut-in — unplugged but idle. 8 wells (0.6%) are documented orphans with no operator able to plug them, compared with 1% across California and 4% nationally. The remaining 52 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Colusa County?
By product class, 3 of the county's wells (0.2%) are oil wells, 772 (61%) gas wells and 2 (0.2%) injection wells. Statewide the oil share is 68% and the gas share 3%. 100% of the county's wells carry coordinates and appear on the map.
How does Colusa County compare with other California counties?
Colusa County has the 13th-most catalogued wells of the 39 California counties with at least 25. The median California county on WellCensus has 675 wells. The largest, Kern County, has 156,849. By documented orphans it ranks 19th in California.
Who operates wells in Colusa County?
181 distinct operators of record are linked to wells in Colusa County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.
Wells in Colusa County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Steidlmayer 2-10 | 04-011-00001 | Plugged & abandoned | Other type | Great Basins Petroleum Co. |
| Arbuckle Unit Z 1 | 04-011-00002 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit - C 1 | 04-011-00003 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit E 1 | 04-011-00004 | Plugged & abandoned | Gas | California Resources Production Corporation |
| Arbuckle Unit F 1 | 04-011-00005 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit K 1 | 04-011-00006 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit L 1 | 04-011-00007 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit T 1 | 04-011-00008 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Signal-Arbuckle Unit UU 1 | 04-011-00009 | Plugged & abandoned | Other type | Chevron U.S.A. Inc. |
| Myers-Marsh 1 | 04-011-00010 | Plugged & abandoned | Other type | Chevron U.S.A. Inc. |
| Arbuckle Unit D 1 | 04-011-00011 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit G 1 | 04-011-00012 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit H 1 | 04-011-00013 | Plugged & abandoned | Other type | Chevron U.S.A. Inc. |
| Arbuckle Unit AA 1 | 04-011-00014 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit QQ 1 | 04-011-00015 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit NN 1 | 04-011-00016 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| H.L. Charter et al 1 | 04-011-00017 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arcand-Meckfessel 1 | 04-011-00018 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit OO 1 | 04-011-00019 | Plugged & abandoned | Other type | Chevron U.S.A. Inc. |
| A.S. Wiggin 1 | 04-011-00020 | Shut-in | Gas | California Resources Production Corporation |
| A.S. Wiggin 2 | 04-011-00021 | Plugged & abandoned | Gas | Petrogulf Corporation |
| A.S. Wiggin 3 | 04-011-00023 | Plugged & abandoned | Gas | TJ Ballantyne Living Trust |
| Alexander 1 | 04-011-00024 | Plugged & abandoned | Other type | Chevron U.S.A. Inc. |
| Arbuckle Unit J 1 | 04-011-00025 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
| Arbuckle Unit EE 1 | 04-011-00026 | Plugged & abandoned | Gas | Chevron U.S.A. Inc. |
A sample of the county’s wells — every catalogued well has its own page. Browse all 1,271 in search → (filter by operator, status and type, then export), or find a specific well on the live map.
Frequently asked questions
How many oil and gas wells are in Colusa County, CA?
Colusa County, California has 1,271 catalogued oil & gas wells: 141 active, 883 plugged and 8 documented orphans.
How many orphaned wells are in Colusa County?
8 wells in Colusa County, California are documented orphans — unplugged with no solvent operator of record, the 19th-highest count among California counties.
What share of wells in Colusa County are plugged?
883 of Colusa County's 1,271 catalogued wells (69%) are plugged & abandoned, compared with 60% across California.
Which California county has the most oil and gas wells?
Kern County has the most catalogued wells of any California county on WellCensus (156,849); Colusa County ranks 13th with 1,271.
How many companies operate wells in Colusa County?
181 distinct operators of record are linked to catalogued wells in Colusa County, California.
Nearby in the California rankings
About this data
Source: CalGEM WellSTAR well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Oil & gas wells in Colusa County, California”, https://wellcensus.com/wells/california/colusa (data as of October 10, 2026).