TEXAS · WELLS · WHEELER COUNTY · ZYBACH 19 LEASE · API 42-483-33250 · DISTRICT 08
Zybach 19 #4H
Wheeler County · West Park (Granite Wash) field · Producing · Horizontal
Zybach 19 #4H (API 42-483-33250) is a horizontal well in Wheeler County operated by Mmgl Txph LLC, completed May 11, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 3, 2011, permitted to 12,269 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Mmgl Txph LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Grws Caldwell, Grws Cherokee, Grws A.
Its lease has reported 115K barrels of oil and 2.29M mcf of gas since May 2012, last reporting volume in April 2026.
Operator of record
Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 24, 2025
- Permits on file
- 10
- Phone
- (972) 701-8377
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mmgl Txph LLC |
| Production reports | Mmgl Txph, LLCthrough Apr 2026 |
| Latest permit | Devon Energy Production Co, L.P.Jun 3, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,269
- total depth, ft
- 2
- permits on file
- Jun 3, 2011
- last permit issued
- May 11, 2012
- completed
- 115K
- cumulative oil, bbl
- 2.29M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 11, 2012
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Zybach 19 G-14-272109 | West Park (Granite Wash) | Mmgl Txph, LLC | 1 | 115K | 2.29M | May 2012 – Apr 2026 |
Gas, mcf lease total
Last 12 months 55,222 · prior 12 37,524(+47%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.May 2012 → Jun 2016
- 2Tecolote Energy Operating, LLCJul 2016 → Dec 2019
- 3Blackbeard Operating, LLCJan 2020 → Sep 2023
- 4Mmgl Txph, LLCOct 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 717547-98 | Drill | Devon Energy Production Co, L.P. | Feb 2, 2012 | Jun 3, 2011 | Sep 22, 2011 | 12,600 |
| 717547-99 | Drill | Devon Energy Production Co, L.P. | Jun 1, 2011 | Jun 3, 2011 | Mar 11, 2012 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 11, 2012 | Zybach 19 G-14-272109 | West Park (Granite Wash) | Mmgl Txph LLC | Producing | 12,269 |
Formation tops
As filed on W-2/G-1. Subsea from 2,553 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grws Caldwell | 12,044 | -9,491 |
| Grws Cherokee | 12,114 | -9,561 |
| Grws A | 12,222 | -9,669 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,512 | 16,943 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 500 | 17.5 | 840 S |
| 9.625 | 8,860 | 12.25 | 800 S |
| 5.5 | 17,039 | 8.75 | 2,000 S |
| 9.625 | — | 12.25 | 690 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 | May 22, 2014 | Mar 13, 2013 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 2, 2015. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Grws Caldwell, Grws Cherokee, Grws A | TIFF | 8,650 to 17,008 | Mar 2, 2015run Apr 12, 2012 | 8.15 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-483-33250 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-483-33250 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/48333250, documented in the API reference.