WELL · 42-507-33154 · DISTRICT 1
Robert Walker Unit Zav B #1H
Zavala County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Robert Walker Unit Zav B #1H (API 42-507-33154) is a horizontal well in Zavala County operated by Exco Operating Company LP, completed September 16, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 13, 2014, permitted to 11,000 ft.
Completion filings report 10 formation tops, including Escondido, Olmos, Anacacho, Austin Chalk.
Its lease has reported 997K barrels of oil and 353K mcf of gas since July 2014, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 22, 2025
- Permits on file
- 515
- Phone
- (214) 368-2084
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Exco Operating Company LP |
| Production reports | Exco Operating Company, LPthrough Apr 2026 |
| Latest permit | Exco Operating Company, LPJun 13, 2014 |
- 11,000
- total depth, ft
- 2
- permits on file
- Jun 13, 2014
- last permit issued
- Sep 16, 2014
- completed
- 997K
- cumulative oil, bbl
- 353K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 16, 2014
- 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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Robert Walker Unit Zav B O-1-17827 | Briscoe Ranch (Eagleford) | Exco Operating Company, LP | 3 | 997K | 353K | Jul 2014 – Jul 2026 |
Oil, barrels lease total
Last 12 months 49,477 · prior 12 51,118(-3%)
Gas, mcf lease total
Last 12 months 15,797 · prior 12 35,989(-56%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exco Operating Company, LPSep 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 786945-98 | Drill | Exco Operating Company, LP | Jun 19, 2014 | Jun 13, 2014 | Aug 3, 2014 | 11,000 |
| 786945-99 | Drill | Exco Operating Company, LP | May 13, 2014 | Jun 13, 2014 | Jun 20, 2014 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-17827 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 726 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Escondido | 2,700 | -1,974 |
| EscondidoESCONDIDO - DISPOSAL | 2,700 | -1,974 |
| Olmos | 4,099 | -3,373 |
| Anacacho | 5,185 | -4,459 |
| Austin Chalk | 5,630 | -4,904 |
| Eagle Ford | 6,092 | -5,366 |
| Buda | 6,512 | -5,786 |
| Del Rio | 6,643 | -5,917 |
| Georgetown | 6,755 | -6,029 |
| Glen Rose | 8,202 | -7,476 |
| Pearsall | 9,751 | -9,025 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,086 | 13,903 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,745 | 12.25 | 790 S |
| 5.5 | 13,999 | 8.75 | 2,190 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 | Dec 2, 2014 | Oct 28, 2014 | Yes |
| 00 | Oct 16, 2014 | Jul 29, 2014 | Yes |
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 42-507-33154 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-33154 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/50733154, documented in the API reference.