TEXAS · WELLS · YOAKUM COUNTY · YOAKUM WASSON CLEARFORK UNIT LEASE · API 42-501-35530 · DISTRICT 7B
Yoakum Wasson Clearfork Unit #4909
Yoakum County · Wasson 72 field · Injection · Directional
Yoakum Wasson Clearfork Unit #4909 (API 42-501-35530) is a well in Yoakum County operated by Occidental Permian Ltd., completed March 22, 2024 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued April 18, 2008, permitted to 8,252 ft.
Completion filings report 6 formation tops, including Yates, Queen, Grayburg, San Andres.
Its lease has reported 15.2M barrels of oil and 5.29M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 270 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 203K barrels injected in the 12 months reported through September 2025.
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 Aug 2026 |
| Latest permit | Occidental Permian Ltd.Apr 18, 2008 |
- 8,252
- total depth, ft
- 1
- permits on file
- Apr 18, 2008
- last permit issued
- Mar 22, 2024
- completed
- 15.2M
- cumulative oil, bbl
- 5.29M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 22, 2024
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 270 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. | 270 | 15.2M | 5.29M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 397,377 · prior 12 339,166(+17%)
Gas, mcf lease total
Last 12 months 189,908 · prior 12 226,162(-16%)
Wells named Yoakum Wasson Clearfork Unit
Occidental Permian Ltd.'s other wells filed under this lease name in Yoakum County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Occidental Permian Ltd. | May 1, 2000 | today |
Reporting production
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 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 658850-99 | Drill | Occidental Permian Ltd. | Apr 4, 2008 | Apr 18, 2008 | Sep 18, 2008 | 8,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 22, 2024 | Yoakum Wasson Clearfork Unit O-11-63523 | Wasson 72 | Occidental Permian Ltd. | Injection | 8,252 |
Formation tops
As filed on W-2/G-1. Subsea from 3,550 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 3,062 | 488 |
| Yates | 3,066 | 484 |
| Queen | 3,827 | -277 |
| Grayburg | 4,227 | -677 |
| San Andres | 4,482 | -932 |
| San Andres | 4,535 | -985 |
| Clear ForkUPPER CLEARFORK | 6,113 | -2,563 |
| Clear ForkCLEARFORK, UPPER | 6,133 | -2,583 |
| Tubb | 7,423 | -3,873 |
| Clear ForkCLEARFORK, LOWER | 7,518 | -3,968 |
| Clear ForkLOWER CLEARFORK | 7,519 | -3,969 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,544 | 8,028 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 40 | 26 | 130 S |
| 8.625 | 2,272 | 12.25 | 1,150 S |
| 5.5 | 8,226 | 7.875 | 1,630 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 | Apr 7, 2025 | Apr 23, 2024 | — |
| 00 | Feb 20, 2025 | Nov 30, 2023 | — |
| 00 | Apr 22, 2024 | Dec 7, 2022 | — |
| 00 | Apr 16, 2009 | Dec 3, 2008 | Yes |
| 00 | Mar 23, 2009 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received May 1, 2009. Neutron.
Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.
| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Yates, Queen, Grayburg, San Andres, Clear Fork, Tubb | TIFF | 200 to 8,064 | May 1, 2009run Oct 17, 2008 | 11.0 |
"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.
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.
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 42-501-35530 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-35530 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 203K
- bbl, last 12 reported months
- 2.69M
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000099338 | H-1 Injection | Active | 1,500 | 2,500 | 5,648–8,222 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 202,894 · prior 12 76,145(+166%)
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/50135530, documented in the API reference.