TEXAS · WELLS · HEMPHILL COUNTY · HEFLEY 13 LEASE · API 42-211-34977 · DISTRICT 08
Hefley 13 #8H
Hemphill County · Buffalo Wallow (Granite Wash) field · Temp Abandoned · Horizontal
Hefley 13 #8H (API 42-211-34977) is a horizontal well in Hemphill County operated by Mmgl Txph LLC, completed March 9, 2012 and listed as temp abandoned on the RRC schedule, shut in February 1, 2022.
The RRC has issued one drilling permit, issued November 10, 2011, permitted to 11,081 ft.
It was permitted by Samson Lone Star, LLC and has since transferred to Mmgl Txph LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Tonkawa, Cleveland, Granite Wash.
Its lease has reported 12K barrels of oil and 1.86M mcf of gas since March 2012, with no volume in the three years through April 2026.
Operator of record
Permitted by Samson Lone Star, LLC; 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 Jan 2022 |
| Latest permit | Samson Lone Star, LLCNov 10, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,081
- total depth, ft
- 1
- permits on file
- Nov 10, 2011
- last permit issued
- Mar 9, 2012
- completed
- 12K
- cumulative oil, bbl
- 1.86M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2012 THROUGH Jan 2022
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 9, 2012
- Shut in
- Feb 1, 2022
- 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 |
|---|---|---|---|---|---|---|
| Hefley 13 G-14-265716 | Buffalo Wallow (Granite Wash) | Mmgl Txph, LLC | 1 | 12K | 1.86M | Mar 2012 – Jan 2022 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Samson Lone Star, LLCMar 2012 → Oct 2016
- 2Tecolote Energy Operating, LLCNov 2016 → Dec 2019
- 3Blackbeard Operating, LLCJan 2020 → Jan 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 727942-99 | Drill | Samson Lone Star, LLC | Nov 8, 2011 | Nov 10, 2011 | Nov 26, 2011 | 13,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 9, 2012 | Hefley 13 G-14-265716 | Buffalo Wallow (Granite Wash) | Mmgl Txph LLC | Temp Abandoned · shut in Feb 1, 2022 | 11,081 |
Formation tops
As filed on W-2/G-1. Subsea from 2,508 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Tonkawa | 8,639 | -6,131 |
| Cleveland | 10,018 | -7,510 |
| Granite Wash | 10,747 | -8,239 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,168 | 15,398 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,020 | 12.25 | 790 S |
| 7 | 10,448 | 8.75 | 595 S |
| 4.5 | 15,454 | 6.125 | 420 S |
| 7 | — | 8.75 | 405 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 | Jan 9, 2013 | Apr 19, 2012 | — |
| 00 | Jan 7, 2013 | Mar 27, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 9, 2015. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Cleveland, Granite Wash | TIFF | 10,430 to 15,705 | Jan 9, 2015run Dec 22, 2011 | 0.89 |
"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 42-211-34977 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-34977 → 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/21134977, documented in the API reference.