WELL · 42-211-35180 · DISTRICT 10
Young 66 (Allocation) #1H
Hemphill County · St. Clair (Granite Wash) field · Producing · Horizontal
Young 66 (Allocation) #1H (API 42-211-35180) is a horizontal well in Hemphill County operated by Mmgl Txph LLC, completed October 16, 2013 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 29, 2013, permitted to 9,409 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 Tonkawa, Avant, Hogshooter.
Its lease has reported 47.5K barrels of oil and 211K mcf of gas since October 2013, last reporting in July 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.Apr 29, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,409
- total depth, ft
- 2
- permits on file
- Apr 29, 2013
- last permit issued
- Oct 16, 2013
- completed
- 47.5K
- cumulative oil, bbl
- 211K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 16, 2013
- 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 |
|---|---|---|---|---|---|---|
| Young 66 (Allocation) O-14-9177 | St. Clair (Granite Wash) | Mmgl Txph, LLC | 1 | 47.5K | 211K | Oct 2013 – Jul 2026 |
Gas, mcf lease total
Last 12 months 18,615 · prior 12 18,177(+2%)
Oil, barrels lease total
Last 12 months 1,406 · prior 12 1,234(+14%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Oct 2013 → 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 |
|---|---|---|---|---|---|---|
| 761362-98 | Drill | Devon Energy Production Co, L.P. | Feb 7, 2014 | Apr 29, 2013 | Jul 10, 2013 | 10,800 |
| 761362-99 | Drill | Devon Energy Production Co, L.P. | Apr 23, 2013 | Apr 29, 2013 | Jul 10, 2013 | 10,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 16, 2013 | Young 66 (Allocation) O-14-9177 | St. Clair (Granite Wash) | Mmgl Txph LLC | Producing | 9,409 |
Formation tops
As filed on W-2/G-1. Subsea from 2,668 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Tonkawa | 8,456 | -5,788 |
| Avant | 8,971 | -6,303 |
| Hogshooter | 9,179 | -6,511 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,275 | 18,628 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 798 | 17.5 | 1,670 S |
| 9.625 | 7,922 | 12.25 | 750 S |
| 5.5 | 18,724 | 8.75 | 3,000 S |
| 9.625 | — | 12.25 | 710 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 15, 2014 | Nov 7, 2013 | 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 42-211-35180 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-35180 → 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/21135180, documented in the API reference.