WELL · 42-165-36420 · DISTRICT 8
Central Robertson Clearfork Unit #1261
Gaines County · Robertson N. (Clear Fork 7100) field · Vertical
Central Robertson Clearfork Unit #1261 (API 42-165-36420) is a well in Gaines County operated by Occidental Permian Eor LLC, completed October 13, 2015.
The RRC has issued 2 drilling permits (amended once) between 2005 and 2016, permitted to 7,250 ft.
It was permitted by Occidental Permian Ltd. and has since transferred to Occidental Permian Eor LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Grayburg, San Andres, Glorieta, Clear Fork.
Its 2 leases have reported 24.3M barrels of oil and 9.46M mcf of gas since January 1993, last reporting in July 2026. The leases carry 227 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Occidental Permian Ltd.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 21, 2026
- Permits on file
- 2
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Occidental Permian EOR LLC |
| Production reports | Occidental Permian Ltd.through Apr 2026 |
| Latest permit | Occidental Permian Ltd.Apr 20, 2016 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,250
- total depth, ft
- 3
- permits on file
- Apr 20, 2016
- last permit issued
- Oct 13, 2015
- completed
- 24.3M
- cumulative oil, bbl
- 9.46M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 13, 2015
- Shut in
- —
- Plugged
- —
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 227 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Central Robertson Clearfork Unit O-11-65590 | Robertson, N. (Clear Fork 7100) | Occidental Permian EOR, LLC | 154 | 19.6M | 7.81M | Jan 1993 – Jul 2026 |
| Robertson (San Andres) Unit O-11-66037 | Robertson, N. (San Andres) | Occidental Permian EOR, LLC | 73 | 4.68M | 1.65M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 165,971 · prior 12 165,915(+0%)
Gas, mcf lease total
Last 12 months 56,183 · prior 12 73,718(-24%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Shell Western E&P Inc.Jan 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 |
|---|---|---|---|---|---|---|
| 814322-99 | Reenter | Occidental Permian Ltd. | Mar 10, 2016 | Apr 20, 2016 | Oct 4, 2016 | 5,500 |
| 606762-98 | Drill | Occidental Permian Ltd. | Dec 5, 2005 | Sep 23, 2005 | Dec 8, 2005 | 7,250 |
| 606762-99 | Drill | Occidental Permian Ltd. | Sep 21, 2005 | Sep 23, 2005 | Dec 8, 2005 | 7,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-65590 | — | — | — | — |
| — | — O-11-66037 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,324 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 4,110 | -786 |
| San Andres | 4,396 | -1,072 |
| Glorieta | 5,770 | -2,446 |
| Clear ForkCLEARFORK (UPPER) | 6,233 | -2,909 |
| Clear ForkCLEARFORK (LOWER) | 6,958 | -3,634 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,640 | 4,702 | Perforated |
| 6,016 | 6,034 | Perforated |
| 6,286 | 6,304 | Perforated |
| 6,560 | 6,580 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9 | 1,786 | 12.25 | 750 S |
| 8.625 | 1,786 | 12.25 | 750 S |
| 5.5 | 7,267 | 7.875 | 1,700 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 | Nov 8, 2016 | Oct 25, 2016 | — |
| 00 | Feb 26, 2016 | Feb 23, 2016 | — |
| 00 | Feb 10, 2007 | Aug 11, 2006 | Yes |
| 00 | Sep 27, 2006 | — | — |
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 42-165-36420 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-165-36420 → 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/16536420, documented in the API reference.