Oil & gas wells in Arapahoe County, CO
1,644 catalogued wells in Arapahoe County, Colorado, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Arapahoe County, Colorado has 1,644 catalogued oil & gas wells: 286 active (17%), 948 plugged & abandoned (58%) and 5 documented orphans. It ranks 14th of the 47 Colorado counties WellCensus profiles by well count and holds 1% of the state's 124,327 catalogued wells.
Catalogued wells
1,644
Active
286
Plugged
948
Documented orphans
5
What is the status of oil and gas wells in Arapahoe County?
17% of Arapahoe County's wells are active, 12 percentage points below the Colorado share of 29%. 58% are plugged & abandoned, against 44% statewide and 47% nationally. 50 wells (3%) are shut-in — unplugged but idle. 5 wells (0.3%) are documented orphans with no operator able to plug them, compared with 1% across Colorado and 4% nationally. The remaining 355 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Arapahoe County?
By product class, 499 of the county's wells (30%) are oil wells, 78 (5%) 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 Arapahoe County well is 28,929 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 Arapahoe County compare with other Colorado counties?
Arapahoe County has the 14th-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. By documented orphans it ranks 19th in Colorado.
Who operates wells in Arapahoe County?
241 distinct operators of record are linked to wells in Arapahoe 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 Arapahoe County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| 1 J B Jolly | 05-005-05000 | Plugged & abandoned | Other type | Vaughey & Vaughey |
| 1 D S Jolly | 05-005-05001 | Plugged & abandoned | Other type | Vaughey & Vaughey |
| 2 F A Barney | 05-005-05002 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1-A D S Jolly | 05-005-05003 | Plugged & abandoned | Other type | Vaughey & Vaughey |
| 1 David Walker | 05-005-05004 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1 F A Barney | 05-005-05005 | Plugged & abandoned | Other type | Unknown |
| 1 Uprr-Jolly | 05-005-05006 | Plugged & abandoned | Other type | Carmack Drilling Company |
| 1 Uprr-Davis | 05-005-05007 | Plugged & abandoned | Other type | Elpasgar Oil Company Aka Espasgar Oil |
| 1 David S Jolly Jr | 05-005-05008 | Plugged & abandoned | Other type | Enbrook Oil & Gas Co |
| 2 Uprr-Jolly | 05-005-05009 | Plugged & abandoned | Other type | Hawks* Jeff |
| 1 Mary Ludwick | 05-005-05010 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1 Uprr-Trout | 05-005-05012 | Plugged & abandoned | Other type | Dawson Oil Corporation |
| 1 Trout | 05-005-05013 | Plugged & abandoned | Other type | Allison Drilling Company Inc |
| 1 Uprr-Trout | 05-005-05016 | Plugged & abandoned | Other type | Carmack Drilling Company |
| 1 Deter | 05-005-05017 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1 Uprr-Jolly | 05-005-05018 | Plugged & abandoned | Other type | Elpasgar Oil Company Aka Espasgar Oil |
| 1 Hog Ranch | 05-005-05019 | Plugged & abandoned | Other type | Old Operators - Status Unknown |
| 1 Uprr-Jolly | 05-005-05020 | Plugged & abandoned | Other type | Hawks* Jeff |
| 1 E D Trout | 05-005-05021 | Plugged & abandoned | Other type | Midwest Oil Corp |
| 1 U. P. | 05-005-05022 | Plugged & abandoned | Other type | Old Operators - Status Unknown |
| 1 Uprr-Jolly | 05-005-05024 | Plugged & abandoned | Other type | Hamilton Oil & Gas Corporation |
| 1 Uprr-Rudolph | 05-005-05025 | Plugged & abandoned | Other type | South Texas Development Co |
| 1 Leonard Gerstenberger | 05-005-05027 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1 James F Johnson | 05-005-05028 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
| 1 George M Davies | 05-005-05029 | Plugged & abandoned | Other type | Sinclair Oil & Gas Company |
A sample of the county’s wells — every catalogued well has its own page. Browse all 1,644 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 Arapahoe County, CO?
Arapahoe County, Colorado has 1,644 catalogued oil & gas wells: 286 active, 948 plugged and 5 documented orphans.
How many orphaned wells are in Arapahoe County?
5 wells in Arapahoe County, Colorado are documented orphans — unplugged with no solvent operator of record, the 19th-highest count among Colorado counties.
What share of wells in Arapahoe County are plugged?
948 of Arapahoe County's 1,644 catalogued wells (58%) 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); Arapahoe County ranks 14th with 1,644.
How many companies operate wells in Arapahoe County?
241 distinct operators of record are linked to catalogued wells in Arapahoe 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 Arapahoe County, Colorado”, https://wellcensus.com/wells/colorado/arapahoe (data as of October 10, 2026).