WELL · 42-115-33179 · DISTRICT 8
Los Ybanez Spraberry Unit #1
Dawson County · Los Ybanez (Spraberry) field · Producing · Vertical
Los Ybanez Spraberry Unit #1 (API 42-115-33179) is a well in Dawson County operated by Watusi Energy LLC, completed December 29, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued November 6, 2006, permitted to 7,810 ft.
It was permitted by Fasken Oil And Ranch, Ltd. and has since transferred to Watusi Energy LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Rustler, Yaes, Glorieta, Clear Fork.
Its 2 leases have reported 958K barrels of oil and 1.03M mcf of gas since December 2006, last reporting in July 2026. The leases carry 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Fasken Oil and Ranch, Ltd.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 18, 2025
- Permits on file
- 1
- Phone
- (432) 559-9932
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Fasken Oil and Ranch Ltd. |
| Production reports | Fasken Oil and Ranch, Ltd.through Apr 2026 |
| Latest permit | Fasken Oil and Ranch, Ltd.Nov 6, 2006 |
- 7,810
- total depth, ft
- 2
- permits on file
- Nov 6, 2006
- last permit issued
- Dec 29, 2006
- completed
- 958K
- cumulative oil, bbl
- 1.03M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2006 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 29, 2006
- 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 2 leases this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Los Ybanez Spraberry Unit O-11-69470 | Los Ybanez (Spraberry) | Fasken Oil and Ranch, Ltd. | 7 | 775K | 632K | Feb 2010 – Jul 2026 |
| Vinson "16" O-11-69046 | Los Ybanez (Spraberry) | Fasken Oil and Ranch, Ltd. | 1 | 183K | 403K | Dec 2006 – Apr 2010 |
Oil, barrels lease total
Last 12 months 25,044 · prior 12 29,062(-14%)
Gas, mcf lease total
Last 12 months 9,550 · prior 12 9,508(+0%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Fasken Oil and Ranch, Ltd.Dec 2006 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 628208-98 | Drill | Fasken Oil and Ranch, Ltd. | Jan 29, 2007 | Nov 6, 2006 | Nov 28, 2006 | 8,200 |
| 628208-99 | Drill | Fasken Oil and Ranch, Ltd. | Oct 27, 2006 | Nov 6, 2006 | Nov 28, 2006 | 8,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 29, 2006 | Los Ybanez Spraberry Unit O-11-69470 | Los Ybanez (Spraberry) | Watusi Energy LLC | Producing | 7,810 |
| Dec 29, 2006 | Vinson 16 O-11-69046 | Los Ybanez (Spraberry) | Fasken Oil and Ranch Ltd. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,953 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,908 | 1,045 |
| Yaes | 2,542 | 411 |
| Glorieta | 5,132 | -2,179 |
| Clear ForkCLEARFORK | 5,452 | -2,499 |
| SpraberrySPRABERRY SD | 7,220 | -4,267 |
| Gin Sand | 7,544 | -4,591 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,547 | 7,572 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 421 | 17.5 | 400 S |
| 8.625 | 4,199 | 11 | 1,200 S |
| 5.5 | 7,787 | 7.875 | 450 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 | Feb 17, 2010 | Jan 29, 2007 | Yes |
| 00 | Apr 30, 2007 | Jan 29, 2007 | Yes |
| 00 | Feb 12, 2007 | — | — |
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 42-115-33179 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-115-33179 → 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/11533179, documented in the API reference.