Oil & gas wells in Fresno County, CA
12,486 catalogued wells in Fresno County, California, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Fresno County, California has 12,486 catalogued oil & gas wells: 2,048 active (16%), 8,914 plugged & abandoned (71%) and 67 documented orphans. It ranks 3rd of the 39 California counties WellCensus profiles by well count and holds 5% of the state's 242,471 catalogued wells.
Catalogued wells
12,486
Active
2,048
Plugged
8,914
Documented orphans
67
What is the status of oil and gas wells in Fresno County?
16% of Fresno County's wells are active, 6 percentage points below the California share of 22%. 71% are plugged & abandoned, against 60% statewide and 47% nationally. 1,042 wells (8%) are shut-in — unplugged but idle. 67 wells (0.5%) are documented orphans with no operator able to plug them, compared with 1% across California and 4% nationally. The remaining 415 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Fresno County?
By product class, 8,121 of the county's wells (65%) are oil wells, 31 (0.2%) gas wells and 1,537 (12%) 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 Fresno County compare with other California counties?
Fresno County has the 3rd-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 6th in California.
Who operates wells in Fresno County?
537 distinct operators of record are linked to wells in Fresno 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 Fresno County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Summit Lake 18-13 | 04-019-05077 | Plugged & abandoned | Oil | Harlan Prine, Oper. |
| Noble 38-10 | 04-019-05094 | Plugged & abandoned | Oil | Mobil Oil Corporation |
| Lease by California Resources Production Corporation 23 | 04-019-05844 | Shut-in | Oil | California Resources Production Corporation |
| Lease by California Resources Production Corporation 76 | 04-019-05853 | Active | Injection | California Resources Production Corporation |
| King 5 | 04-019-05871 | Plugged & abandoned | Oil | California Resources Production Corporation |
| Unspecified S27-12-10 | 04-019-26217 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-12-12 | 04-019-26218 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-12-13I | 04-019-26238 | Other status | Injection | Aera Energy LLC |
| Unspecified S27-12-14 | 04-019-26239 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-12-16 | 04-019-26235 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-13-11I | 04-019-26231 | Other status | Injection | Aera Energy LLC |
| Unspecified S27-13-12 | 04-019-26252 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-13-14 | 04-019-26234 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-14-10 | 04-019-26225 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-14-12 | 04-019-26227 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-7-12 | 04-019-26224 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-7-14 | 04-019-26223 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-7-22 | 04-019-26243 | Other status | Oil | Aera Energy LLC |
| Unspecified S27-8-10 | 04-019-26216 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-8-12 | 04-019-26222 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-8-13I | 04-019-26220 | Other status | Injection | Aera Energy LLC |
| Unspecified S27-8-14 | 04-019-26219 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-8-16 | 04-019-26250 | Other status | Other type | Aera Energy LLC |
| Unspecified S27-8-4 | 04-019-26244 | Other status | Oil | Aera Energy LLC |
| Unspecified S27-9-11I | 04-019-26241 | Other status | Injection | Aera Energy LLC |
A sample of the county’s wells — every catalogued well has its own page. Browse all 12,486 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 Fresno County, CA?
Fresno County, California has 12,486 catalogued oil & gas wells: 2,048 active, 8,914 plugged and 67 documented orphans.
How many orphaned wells are in Fresno County?
67 wells in Fresno County, California are documented orphans — unplugged with no solvent operator of record, the 6th-highest count among California counties.
What share of wells in Fresno County are plugged?
8,914 of Fresno County's 12,486 catalogued wells (71%) 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); Fresno County ranks 3rd with 12,486.
How many companies operate wells in Fresno County?
537 distinct operators of record are linked to catalogued wells in Fresno 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 Fresno County, California”, https://wellcensus.com/wells/california/fresno (data as of October 10, 2026).