TEXAS · WELLS · HEMPHILL COUNTY · SHALLER 152 LEASE · API 42-211-35004 · DISTRICT 08
Shaller 152 #1H
Hemphill County · Mathers Ranch (Granite Wash) field · Producing · Horizontal
Shaller 152 #1H (API 42-211-35004) is a horizontal well in Hemphill County operated by Mmgl Txph LLC, completed June 13, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 23, 2012, permitted to 10,309 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 2 formation tops, including Oswego, Granite Wash.
Its lease has reported 46.2K barrels of oil and 1.65M mcf of gas since June 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.Feb 23, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,309
- total depth, ft
- 1
- permits on file
- Feb 23, 2012
- last permit issued
- Jun 13, 2012
- completed
- 46.2K
- cumulative oil, bbl
- 1.65M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 13, 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 |
|---|---|---|---|---|---|---|
| Shaller 152 G-14-272303 | Mathers Ranch (Granite Wash) | Mmgl Txph, LLC | 1 | 46.2K | 1.65M | Jun 2012 – Apr 2026 |
Gas, mcf lease total
Last 12 months 35,611 · prior 12 38,093(-7%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Jun 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 |
|---|---|---|---|---|---|---|
| 733743-99 | Drill | Devon Energy Production Co, L.P. | Feb 13, 2012 | Feb 23, 2012 | Mar 13, 2012 | 15,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 13, 2012 | Shaller 152 G-14-272303 | Mathers Ranch (Granite Wash) | Mmgl Txph LLC | Producing | 10,309 |
Formation tops
As filed on W-2/G-1. Subsea from 2,390 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Oswego | 9,620 | -7,230 |
| Granite WashGRANITE WASH (CALDWELL) | 10,229 | -7,839 |
| Granite WashGRANITE WASH (A) | 10,325 | -7,935 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,564 | 14,943 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 504 | 17.5 | 840 S |
| 9.625 | 7,599 | 12.25 | 886 S |
| 5.5 | 15,040 | 8.75 | 1,830 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 | Jun 11, 2014 | Apr 17, 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 Oswego, Granite Wash | TIFF | 9,550 to 14,984 | Mar 2, 2015run Apr 15, 2012 | 5.79 |
"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 42-211-35004 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-35004 → 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/21135004, documented in the API reference.