TEXAS · WELLS · ZAVALA COUNTY · TRAYLOR SOUTH ZAV LEASE · API 42-507-32829 · DISTRICT 01
Traylor South Zav #F 1H
Zavala County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Traylor South Zav #F 1H (API 42-507-32829) is a horizontal well in Zavala County operated by Exco Operating Company LP, completed February 22, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 21, 2011, permitted to 6,729 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Exco Operating Company LP on the wellbore schedule.
Completion filings report 3 formation tops, including Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 8.9M barrels of oil and 6.34M mcf of gas since November 2011, last reporting volume in April 2026. The lease carries 34 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chesapeake Operating, Inc.; the EWA schedule now lists a different operator.
- 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 | Chesapeake Operating, Inc.Sep 21, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,729
- total depth, ft
- 1
- permits on file
- Sep 21, 2011
- last permit issued
- Feb 22, 2012
- completed
- 8.9M
- cumulative oil, bbl
- 6.34M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · APR 2012 THROUGH APR 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 22, 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.
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 APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 34 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Traylor South Zav O-1-15766 | Briscoe Ranch (Eagleford) | Exco Operating Company, LP | 34 | 8.9M | 6.34M | Nov 2011 – Apr 2026 |
Oil, barrels lease total
Last 12 months 369,078 · prior 12 496,765(-26%)
Gas, mcf lease total
Last 12 months 311,095 · prior 12 467,680(-33%)
Wells named Traylor South Zav
Exco Operating Company LP's other wells filed under this lease name in Zavala 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
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Apr 2012 → Jun 2013
- 2Exco Operating Company, LPJul 2013 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 721609-99 | Drill | Chesapeake Operating, Inc. | Aug 3, 2011 | Sep 21, 2011 | Oct 15, 2011 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 22, 2012 | Traylor South Zav O-1-15766 | Briscoe Ranch (Eagleford) | Exco Operating Company LP | Producing | 6,729 |
Formation tops
As filed on W-2/G-1. Subsea from 733 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 5,512 | -4,779 |
| Austin Chalk | 5,836 | -5,103 |
| Eagle Ford | 6,365 | -5,632 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,003 | 14,952 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,988 | 12.25 | 791 S |
| 9.625 | 2,993 | 12.25 | 791 S |
| 5.5 | 15,060 | 8.75 | 2,325 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 | Aug 22, 2012 | Jul 10, 2012 | — |
| 00 | May 11, 2012 | Mar 28, 2012 | 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 42-507-32829 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-32829 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/50732829, documented in the API reference.