WELL · 42-507-33305 · DISTRICT 1
KM-Winterbotham Unit Zav #1H
Zavala County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
KM-Winterbotham Unit Zav #1H (API 42-507-33305) is a horizontal well in Zavala County operated by Exco Operating Company LP, completed November 16, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 30, 2017, permitted to 7,000 ft.
Completion filings report 5 formation tops, including Escondido, Olmos, Anacacho, Austin Chalk.
Its lease has reported 515K barrels of oil and 247K mcf of gas since August 2018, last reporting in July 2026.
Operator of record
Dallas, TX · P-5 Y, filed May 4, 2026 · 515 permits on file · (888) 788-3781
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, LPNov 30, 2017 |
- 7,000
- total depth, ft
- 1
- permits on file
- Nov 30, 2017
- last permit issued
- Nov 16, 2018
- completed
- 515K
- cumulative oil, bbl
- 247K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 16, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
28.820335, -99.416516
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Zavala County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| KM-Winterbotham Unit Zav O-1-19418 | Briscoe Ranch (Eagleford) | Exco Operating Company, LP | 1 | 515K | 247K | Aug 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 26,577 · prior 12 32,289(-18%)
Gas, mcf lease total
Last 12 months 27,493 · prior 12 38,490(-29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exco Operating Company, LPNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 833308-99 | Drill | Exco Operating Company, LP | Nov 16, 2017 | Nov 30, 2017 | Sep 18, 2018 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-19418 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 603 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDIDO - DISPOSAL | 3,419 | -2,816 |
| Olmos | 4,412 | -3,809 |
| Anacacho | 5,467 | -4,864 |
| Austin Chalk | 5,796 | -5,193 |
| Eagle Ford | 6,282 | -5,679 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,605 | 15,149 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,846 | 12.25 | 700 S |
| 5.5 | 15,247 | 8.75 | 3,125 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 | Mar 4, 2019 | Jan 29, 2019 | Yes |
| 00 | Oct 17, 2018 | Aug 30, 2018 | 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 42-507-33305 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-33305 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Miller Unit Zav42-507-33278
1.1 KM · Exco Operating Company, LP · Section with this well →
| Escondido | 3,279 | -2,676 |
| Olmos | 4,272 | -3,669 |
| Anacacho | 5,327 | -4,724 |
| Austin Chalk | 5,654 | -5,051 |
| Eagle Ford | 6,143 | -5,540 |
Winterbotham Zav42-507-33311
1.1 KM · Exco Operating Company, LP · Section with this well →
| Escondido | 3,302 | -2,699 |
| Olmos | 4,295 | -3,692 |
| Anacacho | 5,350 | -4,747 |
| Austin Chalk | 5,660 | -5,057 |
| Eagle Ford | 6,169 | -5,566 |
Miller Unit Zav42-507-33277
1.1 KM · Exco Operating Company, LP · Section with this well →
| Escondido | 3,286 | -2,683 |
| Olmos | 4,279 | -3,676 |
| Anacacho | 5,334 | -4,731 |
| Austin Chalk | 5,652 | -5,049 |
| Eagle Ford | 6,166 | -5,563 |
KM North Zav42-507-33377
1.2 KM · Exco Operating Company, LP · Section with this well →
| Escondido | 3,304 | -2,713 |
| Olmos | 4,291 | -3,700 |
| Anacacho | 5,321 | -4,730 |
| Austin Chalk | 5,642 | -5,051 |
| Eagle Ford | 6,134 | -5,543 |
Winterbotham Zav42-507-33351
1.8 KM · Exco Operating Company, LP · Section with this well →
| Escondido | 3,386 | -2,759 |
| Olmos | 4,409 | -3,782 |
| Anacacho | 5,488 | -4,861 |
| Austin Chalk | 5,816 | -5,189 |
| Eagle Ford | 6,319 | -5,692 |
Bauerle Unit Zav42-507-33304
2.1 KM · Exco Operating Company, LP · Section with this well →
| Escondido | 3,463 | -2,828 |
| Olmos | 4,499 | -3,864 |
| Anacacho | 5,630 | -4,995 |
| Austin Chalk | 5,946 | -5,311 |
| Eagle Ford | 6,455 | -5,820 |
Cyndi Unit42-163-34203
2.2 KM · Ageron Energy, LLC · Section with this well →
| Queen City | 1,480 | -851 |
| Navarro | 3,525 | -2,896 |
| Escondido | 3,853 | -3,224 |
| Olmos | 4,495 | -3,866 |
| Anacacho | 5,524 | -4,895 |
| Austin Chalk | 5,977 | -5,348 |
| Eagle Ford | 6,501 | -5,872 |
| Georgetown | — |
10 TOPS · FIRST 8
Cyndi Unit42-163-34204
2.2 KM · Ageron Energy, LLC · Section with this well →
| Queen City | 1,490 | -860 |
| Navarro | 3,534 | -2,904 |
| Escondido | 3,758 | -3,128 |
| Olmos | 4,552 | -3,922 |
| Anacacho | 5,543 | -4,913 |
| Austin Chalk | 5,988 | -5,358 |
| Eagle Ford | 6,507 | -5,877 |
| Georgetown | — |
10 TOPS · FIRST 8
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/50733305, documented in the API reference.