TEXAS · WELLS · YOAKUM COUNTY · YOAKUM WASSON CLEARFORK UNIT LEASE · API 42-501-35877 · DISTRICT 7B
Yoakum Wasson Clearfork Unit #4818
Yoakum County · Wasson 72 field · Producing · Vertical
Yoakum Wasson Clearfork Unit #4818 (API 42-501-35877) is a well in Yoakum County operated by Occidental Permian Ltd., completed February 16, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 10, 2011, permitted to 7,960 ft.
Completion filings report 3 formation tops, including Grayburg, San Andres, Glorieta.
Its lease has reported 15.1M barrels of oil and 5.22M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 269 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.Oct 10, 2011 |
- 7,960
- total depth, ft
- 1
- permits on file
- Oct 10, 2011
- last permit issued
- Feb 16, 2012
- completed
- 15.1M
- cumulative oil, bbl
- 5.22M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 16, 2012
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 lease this well is completed on; they carry 269 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Yoakum Wasson Clearfork Unit O-11-63523 | Wasson 72 | Occidental Permian Ltd. | 269 | 15.1M | 5.22M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 396,123 · prior 12 337,007(+18%)
Gas, mcf lease total
Last 12 months 194,441 · prior 12 220,700(-12%)
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 |
|---|---|---|---|---|---|---|
| 724483-99 | Drill | Occidental Permian Ltd. | Sep 19, 2011 | Oct 10, 2011 | Jan 13, 2012 | 8,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 16, 2012 | Yoakum Wasson Clearfork Unit O-11-63523 | Wasson 72 | Occidental Permian Ltd. | Producing | 7,960 |
Formation tops
As filed on W-2/G-1. Subsea from 3,544 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 4,160 | -616 |
| San Andres | 4,425 | -881 |
| Glorieta | 5,810 | -2,266 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,355 | 7,737 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,252 | 12.25 | 1,020 S |
| 5.5 | 7,948 | 8.625 | 380 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 18, 2013 | Sep 25, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 19, 2013. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Grayburg, San Andres, Glorieta | TIFF | 4,000 to 7,964 | Jul 19, 2013run Jan 22, 2012 | 8.69 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-501-35877 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-35877 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/50135877, documented in the API reference.