TEXAS · WELLS · WHEELER COUNTY · HEFLEY 36 LEASE · API 42-483-33177 · DISTRICT 08
Hefley 36 #6H
Wheeler County · Buffalo Wallow (Granite Wash) field · Producing · Horizontal
Hefley 36 #6H (API 42-483-33177) is a horizontal well in Wheeler County operated by Mmgl Txph LLC, completed November 19, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 28, 2011, permitted to 11,532 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, Oswego.
Its lease has reported 81.4K barrels of oil and 4.84M mcf of gas since November 2011, 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 28, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,532
- total depth, ft
- 1
- permits on file
- Feb 28, 2011
- last permit issued
- Nov 19, 2011
- completed
- 81.4K
- cumulative oil, bbl
- 4.84M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 19, 2011
- 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 |
|---|---|---|---|---|---|---|
| Hefley 36 G-14-267853 | Buffalo Wallow (Granite Wash) | Mmgl Txph, LLC | 1 | 81.4K | 4.84M | Nov 2011 – Apr 2026 |
Gas, mcf lease total
Last 12 months 73,628 · prior 12 80,262(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Nov 2011 → 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 |
|---|---|---|---|---|---|---|
| 710835-99 | Drill | Devon Energy Production Co, L.P. | Feb 23, 2011 | Feb 28, 2011 | Sep 4, 2011 | 14,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 19, 2011 | Hefley 36 G-14-267853 | Buffalo Wallow (Granite Wash) | Mmgl Txph LLC | Producing | 11,532 |
Formation tops
As filed on W-2/G-1. Subsea from 2,600 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grws Caldwell | — | — |
| Grws Cherokee | — | — |
| Oswego | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,500 | 16,220 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 577 | 17.5 | 840 S |
| 9.625 | 8,640 | 12.25 | 620 S |
| 5.5 | 16,320 | 8.75 | 1,600 S |
| 9.625 | — | 12.25 | 820 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 24, 2013 | Jul 12, 2012 | Yes |
Well logs
4 logs loaded from the RRC's log index, the latest received Mar 16, 2016. Density, Neutron, Resistivity, Sonic. 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 |
|---|---|---|---|---|
| ACOUSTIC POROSITY | TIFF | 10,850 to 16,300 | Oct 29, 2014run Oct 6, 2011 | 6.02 |
| NEUTRON/DENSITY POROSITY | TIFF | 10,850 to 16,300 | Oct 29, 2014run Oct 6, 2011 | 5.45 |
| RESISTIVITY | TIFF | 10,850 to 16,300 | Oct 29, 2014run Oct 6, 2011 | 5.62 |
| RESISTIVITY | TIFF | 8,460 to 16,326 | Mar 16, 2016run Oct 5, 2011 | 0.89 |
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 42-483-33177 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-483-33177 → 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/48333177, documented in the API reference.