WELL · 42-371-36278 · DISTRICT 8
Wilson Ranch 20 #4
Pecos County · Willie B. (San Andres) field · Vertical
Wilson Ranch 20 #4 (API 42-371-36278) is a well in Pecos County operated by Sbj Oil & Gas LLC, completed December 1, 1990.
The RRC has issued one drilling permit, issued September 25, 1990, permitted to 2,300 ft.
It was permitted by Wilson, WM. B. Exploration Inc. and has since transferred to Sbj Oil & Gas LLC on the wellbore schedule.
Completion filings report 7 formation tops, including Yates, Seven Rivers, Queen, Grayberg.
Its 3 leases have reported 2.12K barrels of oil and 208K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Wilson, Wm. B. Exploration Inc.; the EWA schedule now lists a different operator.
Iraan, TX · P-5 Y, filed Oct 4, 2025 · 21 permits on file · (432) 556-9321
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | SBJ Oil & Gas LLC |
| Production reports | SBJ Oil & Gas, LLCthrough Apr 2026 |
| Latest permit | Wilson, Wm. B. Exploration Inc.Sep 25, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,300
- total depth, ft
- 1
- permits on file
- Sep 25, 1990
- last permit issued
- Dec 1, 1990
- completed
- 2.12K
- cumulative oil, bbl
- 208K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 1, 1990
- 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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Wilson Ranch 20 O-10-62273 | Willie B. (San Andres) | SBJ Oil & Gas, LLC | 1 | 107 | 0 | Jul 2023 – Jul 2026 |
| Wilson Ranch 20 G-10-262795 | Willie B. (San Andres) | SBJ Oil & Gas, LLC | 1 | 0 | 22.9K | Sep 2011 – Mar 2025 |
| Wilson Ranch 20 O-10-32926 | Willie B. (San Andres) | Wilson Brothers Leasing Co., Inc | 1 | 2.01K | 185K | Jan 1993 – Jun 2012 |
Oil, barrels lease total
Last 12 months 35 · prior 12 39(-10%)
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Wilson, Wm. B. Exploration Inc.Jan 1993 → Jan 1996
- 2Wilson, W. Corp.Feb 1996 → Aug 1998
- 3Wilson Brothers Leasing Co., IncSep 1998 → Jun 2014
- 4SBJ Oil & Gas, LLCJul 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 378427-99 | Drill | Wilson, Wm. B. Exploration Inc. | Sep 24, 1990 | Sep 25, 1990 | Nov 11, 1990 | 2,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-262795 | — | — | — | — |
| — | — O-10-32926 | — | — | — | — |
| — | — O-10-62273 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,726 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,108 | 1,618 |
| Seven Rivers | 1,234 | 1,492 |
| Queen | 1,560 | 1,166 |
| Grayberg | 1,800 | 926 |
| Grayberry | 1,800 | 926 |
| Grayburg | 1,800 | 926 |
| San AndresSAN ANDRES | 1,844 | 882 |
| San Andres | 1,844 | 882 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,844 | 1,867 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 666 | 12.25 | 430 S |
| 5.5 | 2,001 | 7.875 | 275 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 | Jan 22, 2025 | Nov 9, 2024 | — |
| 00 | Mar 28, 2012 | Nov 9, 2011 | — |
| 00 | Jan 31, 1991 | Dec 18, 1990 | Yes |
| 00 | Jan 15, 1991 | — | — |
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 42-371-36278 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-36278 → 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/37136278, documented in the API reference.