Oil & gas wells in Jefferson County, CO
65 catalogued wells in Jefferson County, Colorado, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Jefferson County, Colorado has 65 catalogued oil & gas wells: 0 active (0%), 58 plugged & abandoned (89%) and 0 documented orphans. It ranks 40th of the 47 Colorado counties WellCensus profiles by well count and holds 0.1% of the state's 124,327 catalogued wells.
Catalogued wells
65
Active
0
Plugged
58
Documented orphans
0
What is the status of oil and gas wells in Jefferson County?
0% of Jefferson County's wells are active, 29 percentage points below the Colorado share of 29%. 89% are plugged & abandoned, against 44% statewide and 47% nationally. No documented orphaned wells are recorded in Jefferson County; Colorado as a whole has 1,302. The remaining 7 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Jefferson County?
By product class, 3 of the county's wells (5%) are oil wells, 5 (8%) gas wells and 0 (0%) injection wells. Statewide the oil share is 24% and the gas share 34%. The deepest total depth published for a Jefferson County well is 11,111 ft, against 29,046 ft for Colorado as a whole. 100% of the county's wells carry coordinates and appear on the map.
How does Jefferson County compare with other Colorado counties?
Jefferson County has the 40th-most catalogued wells of the 47 Colorado counties with at least 25. The median Colorado county on WellCensus has 497 wells. The largest, Weld County, has 45,804.
Who operates wells in Jefferson County?
18 distinct operators of record are linked to wells in Jefferson 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 Jefferson County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| 3 Leyden Gas Storage | 05-059-40003 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 1 Hugins | 05-059-05001 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1 Braden | 05-059-05009 | Plugged & abandoned | Other type | Unknown |
| 21 Fee | 05-059-06004 | Other status | Gas | Western Gas Supply Company |
| 36 Leyden Gas Storage | 05-059-06023 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 1a Pallaoro*lillie | 05-059-06025 | Plugged & abandoned | Other type | Johnson* S D |
| 2w Church Ranch | 05-059-06027 | Other status | Other type | Premier Oil & Gas Inc |
| 18 Leyden | 05-059-40017 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 1 Richters | 05-059-05010 | Plugged & abandoned | Other type | Sherrod & Apperson |
| 7 Leyden | 05-059-40007 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 1 Metz Industries Inc | 05-059-05063 | Plugged & abandoned | Other type | Allison Drilling Company Inc |
| 1 Rohlas-Wallen | 05-059-05064 | Plugged & abandoned | Other type | Hlm Drilling Company |
| 22 Fee | 05-059-06005 | Other status | Gas | Western Gas Supply Company |
| 23 Leyden | 05-059-06008 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 33 Leyden Gas Storage | 05-059-06020 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 5 Leyden Gas Storage | 05-059-40005 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 9 Leyden | 05-059-40009 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 1 Shaft-Leyden Gas Storage | 05-059-40019 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 24 Leyden | 05-059-06011 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 31 Leyden Storage | 05-059-06018 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 4 Shaft #4 Upper | 05-059-40026 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 8 Leyden Gas Storage | 05-059-40008 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
| 1 Braden | 05-059-40025 | Plugged & abandoned | Other type | Carmack Drilling Co |
| 1 Coors | 05-059-05004 | Plugged & abandoned | Other type | Great Basins Petr Co |
| 19 Leyden | 05-059-06001 | Plugged & abandoned | Other type | Public Service Company Of Colorado |
A sample of the county’s wells — every catalogued well has its own page. Browse all 65 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 Jefferson County, CO?
Jefferson County, Colorado has 65 catalogued oil & gas wells: 0 active, 58 plugged and 0 documented orphans.
How many orphaned wells are in Jefferson County?
No documented orphaned wells are currently recorded in Jefferson County, Colorado.
What share of wells in Jefferson County are plugged?
58 of Jefferson County's 65 catalogued wells (89%) are plugged & abandoned, compared with 44% across Colorado.
Which Colorado county has the most oil and gas wells?
Weld County has the most catalogued wells of any Colorado county on WellCensus (45,804); Jefferson County ranks 40th with 65.
How many companies operate wells in Jefferson County?
18 distinct operators of record are linked to catalogued wells in Jefferson County, Colorado.
Nearby in the Colorado rankings
About this data
Source: Colorado ECMC 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 Jefferson County, Colorado”, https://wellcensus.com/wells/colorado/jefferson (data as of October 10, 2026).