WELL · 42-501-31605 · DISTRICT 8
Clanahan N. C. D #4
Yoakum County · Prentice (6700) field · Vertical
Clanahan N. C. D #4 (API 42-501-31605) is a plugged well in Yoakum County, plugged May 7, 2007, last operated by Occidental Permian Ltd..
The RRC has issued 3 drilling permits between 1978 and 2006, permitted to 8,900 ft.
Completion filings report 5 formation tops, including Rustler, San Andres, Glorieta, Clear Fork.
Its 2 leases have reported 226K barrels of oil and 92K mcf of gas since January 1993, last reporting in July 2026. The leases carry 11 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 2, 2026
- Permits on file
- 6,251
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Occidental Permian Ltd. |
| Production reports | Occidental Permian Ltd.through Apr 2026 |
| Latest permit | Occidental Permian Ltd.Nov 20, 2006 |
- 8,900
- total depth, ft
- 3
- permits on file
- Nov 20, 2006
- last permit issued
- Dec 28, 1987
- completed
- 226K
- cumulative oil, bbl
- 92K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 28, 1987
- Shut in
- —
- Plugged
- May 7, 2007
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 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Clanahan, N. C. "D" O-11-64995 | Prentice (6700) | Occidental Permian Ltd. | 10 | 226K | 92K | Jan 1993 – Jul 2026 |
| Clanahan, N. C. "D" O-11-69053 | Prentice (San Andres) | Occidental Permian Ltd. | 1 | 325 | 0 | Dec 2006 – Jul 2007 |
Oil, barrels lease total
Last 12 months 544 · prior 12 2,296(-76%)
Gas, mcf lease total
Last 12 months 0 · prior 12 40(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Amoco Production CompanyJan 1993 → Feb 1997
- 2Altura Energy Ltd.Mar 1997 → Apr 2000
- 3Occidental Permian Ltd.May 2000 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 628654-99 | Recompletion | Occidental Permian Ltd. | Nov 6, 2006 | Nov 20, 2006 | Nov 17, 2006 | 8,900 |
| 263396-99 | Recompletion | Amoco Production Company | Dec 31, 1984 | Dec 31, 1984 | — | 8,900 |
| 27655-99 | Drill | Amoco Production Company | Jun 29, 1978 | Jun 29, 1978 | Jul 7, 1978 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-64995 | — | — | — | — |
| — | — O-11-69053 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,572 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,610 | 962 |
| San Andres | 4,707 | -1,135 |
| Glorieta | 6,049 | -2,477 |
| GlorietaGLORIETTA | 6,049 | -2,477 |
| Clear ForkUPPER CLEARFORK | 6,641 | -3,069 |
| Tubb | 7,299 | -3,727 |
| Clear ForkLOWER CLEARFORK | 7,503 | -3,931 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,218 | 5,310 | Perforated |
| 6,544 | 6,880 | Perforated |
| — | 8,297 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 500 | 17.5 | 550 S |
| 8.625 | 4,800 | 12.25 | 2,030 S |
| 5.5 | 8,800 | 7.875 | 890 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 | May 3, 2007 | Feb 15, 2007 | — |
| 00 | Feb 21, 2007 | Jul 2, 2004 | — |
| 00 | Aug 3, 2005 | Jul 2, 2004 | — |
| 00 | Apr 15, 1988 | Mar 31, 1988 | — |
| 00 | May 3, 1985 | Apr 23, 1985 | — |
| 00 | May 2, 1985 | — | — |
| 00 | Jan 12, 1984 | Sep 27, 1978 | — |
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 42-501-31605 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-31605 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 444K
- bbl, all reported
- Nov 2006
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000064866 | H-1 Injection | Plugged Jul 18, 2007 | 450 | 1,500 | 6,544–6,880 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/50131605, documented in the API reference.