WELL · 42-371-36850 · DISTRICT 8
Duncan D #4
Pecos County · Chenot N. (Wichita Albany) field · Vertical
Duncan D #4 (API 42-371-36850) is a plugged well in Pecos County, plugged July 3, 2008, last operated by Marathon Oil Company.
The RRC has issued 2 drilling permits (amended once) between 1998 and 2005, permitted to 5,100 ft.
Completion filings report 8 formation tops, including Queen, San Andres, Wichita-Albany, Wlfcmp Lm..
Operator of record
Houston, TX · P-5 Y, filed Apr 4, 2026 · 3,707 permits on file · (800) 332-9449
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil Company |
| Production reports | Marathon Oil Companythrough Apr 2007 |
| Latest permit | Marathon Oil CompanyJun 16, 2005 |
- 5,100
- total depth, ft
- 3
- permits on file
- Jun 16, 2005
- last permit issued
- Mar 16, 2005
- completed
- 0
- cumulative oil, bbl
- 798K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 1998 THROUGH Jul 2008
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 16, 2005
- Shut in
- —
- Plugged
- Jul 3, 2008
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duncan "D" G-10-170426 | Chenot (Wolfcamp) | Marathon Oil Company | 1 | 0 | 798K | Aug 1998 – Jul 2008 |
| Duncan D G-10-214291 | Chenot, N. (Wichita Albany) | Marathon Oil Company | 1 | 0 | 0 | Mar 2005 – Jul 2008 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyAug 1998 → Apr 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 602111-99 | Recompletion | Marathon Oil Company | Jun 15, 2005 | Jun 16, 2005 | Mar 6, 2005 | 5,030 |
| 477341-98 | Drill | Marathon Oil Company | Oct 16, 1998 | Jun 22, 1998 | — | 5,100 |
| 477341-99 | Drill | Patterson Petroleum, Inc. | Jun 22, 1998 | Jun 22, 1998 | Jul 10, 1998 | 5,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-170426 | — | — | — | — |
| — | — G-10-214291 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,576 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 1,318 | 1,258 |
| San Andres | 1,633 | 943 |
| Wichita-AlbanyWICHITA ALBANY | 4,084 | -1,508 |
| Wichita-Albany | 4,084 | -1,508 |
| Wlfcmp Lm. | 4,614 | -2,038 |
| WolfcampWOLFCAMP LIME | 4,614 | -2,038 |
| Pre-Camb Basement | 4,866 | -2,290 |
| Pre-Camb. Basement | 4,866 | -2,290 |
| Pre-Camp Basement | 4,866 | -2,290 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,218 | 4,548 | Perforated |
| 4,641 | 4,671 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 660 | 12.25 | 310 S |
| 5.5 | 5,033 | 7.875 | 830 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 19, 2006 | Feb 9, 2006 | — |
| 00 | Jun 19, 2006 | Jun 2, 2005 | — |
| 00 | Mar 3, 2006 | — | — |
| 00 | Nov 25, 1998 | Sep 2, 1998 | Yes |
| 00 | Oct 29, 1998 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-371-36850 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-36850 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/37136850, documented in the API reference.