WELL · 42-211-35637 · DISTRICT 10
Hefley-Fillingim 39-40 MD CX #2H
Hemphill County · Buffalo Wallow (Granite Wash) field · Producing · Horizontal
Hefley-Fillingim 39-40 MD CX #2H (API 42-211-35637) is a horizontal well in Hemphill County operated by Mmgl Txph LLC, completed October 27, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued November 16, 2018, permitted to 13,500 ft.
It was permitted by Tecolote Energy Operating, LLC and has since transferred to Mmgl Txph LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Brown Dolomite, Topeka, Brownsville, Douglas.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Tecolote Energy Operating, LLC; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jun 4, 2026 · 10 permits on file · (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 | Tecolote Energy Operating, LLCDec 31, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,500
- total depth, ft
- 2
- permits on file
- Dec 31, 2018
- last permit issued
- Oct 27, 2020
- completed
- 0
- cumulative oil, bbl
- 4.69M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 27, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
35.632732, -100.285820
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Hemphill County.
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-Fillingim 39-40 MD CX G-14-290828 | Buffalo Wallow (Granite Wash) | Mmgl Txph, LLC | 1 | 0 | 4.69M | Oct 2020 – Jul 2026 |
Gas, mcf lease total
Last 12 months 276,000 · prior 12 406,172(-32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Blackbeard Operating, LLCOct 2020 → Sep 2023
- 2Mmgl Txph, LLCOct 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 846699-98 | Drill | Tecolote Energy Operating, LLC | Dec 2, 2018 | Dec 31, 2018 | May 12, 2019 | 13,500 |
| 846699-99 | Drill | Tecolote Energy Operating, LLC | Nov 10, 2018 | Nov 16, 2018 | May 11, 2019 | 13,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-14-290828 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,587 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown DolomiteBROWN DOLOMITE - PROD, PRESSURED | 4,562 | -1,975 |
| Topeka | 7,210 | -4,623 |
| Brownsville | 7,330 | -4,743 |
| Douglas | 8,138 | -5,551 |
| Tonkawa | 8,997 | -6,410 |
| PennsylvanianPENNSYLVANIAN SAND | 9,345 | -6,758 |
| Kansas CityKANSAS CITY (HOGSHOOTER) | 9,866 | -7,279 |
| Cleveland | 10,335 | -7,748 |
| OswegoOSWEGO UPPER | 10,904 | -8,317 |
| PennsylvanianPENNSYLVANIAN (MARMATON) | 11,009 | -8,422 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,784 | 21,210 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 533 | 17.5 | 990 S |
| 8.625 | 6,516 | 10.625 | 450 S |
| 5.5 | 21,370 | 6.75 | 1,040 S |
| 5.5 | 21,370 | 7.875 | 1,040 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 | Jun 15, 2021 | Apr 30, 2021 | 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 42-211-35637 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-35637 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Hefley-Fillingim 39-40 MD WX42-211-35636
0.0 KM · Tecolote Energy Operating, LLC · Section with this well →
| Brown Dolomite | 4,562 | -1,974 |
| Topeka | 7,210 | -4,622 |
| Brownsville | 7,330 | -4,742 |
| Douglas | 8,138 | -5,550 |
| Tonkawa | 8,997 | -6,409 |
| Pennsylvanian | 9,345 | -6,757 |
| Kansas City | 9,866 | -7,278 |
| Cleveland | 10,335 | -7,747 |
10 TOPS · FIRST 8
Meek-Fillingim 45-44 MD CX42-211-35656
1.2 KM · Blackbeard Operating, LLC · Section with this well →
| Brown Dolomite | 4,637 | -2,027 |
| Douglas | 8,171 | -5,561 |
| Tonkawa | 8,951 | -6,341 |
| Kansas City | 9,863 | -7,253 |
| Cleveland | 10,386 | -7,776 |
| Pennsylvanian | 10,614 | -8,004 |
| Brownsville | — | |
| Oswego | — |
10 TOPS · FIRST 8
Meek-Fillingim 45-44 MD EX42-211-35655
1.2 KM · Blackbeard Operating, LLC · Section with this well →
| Brown Dolomite | 4,631 | -2,021 |
| Douglas | 8,171 | -5,561 |
| Tonkawa | 8,994 | -6,384 |
| Kansas City | 9,876 | -7,266 |
| Cleveland | 10,384 | -7,774 |
| Pennsylvanian | 10,599 | -7,989 |
| Brownsville | — | |
| Topeka | — |
10 TOPS · FIRST 8
Dobbs, Finsterwald42-483-32299
2.7 KM · Templar Operating LLC · Section with this well →
| Brown Dolomite | 4,626 | -2,018 |
| Douglas | 8,205 | -5,597 |
| Tonkawa | 9,019 | -6,411 |
| Caldwell | 11,260 | -8,652 |
| Britt | 11,351 | -8,743 |
| GW A | 11,430 | -8,822 |
| Gwa | 11,430 | -8,822 |
| GWB | 11,707 | -9,099 |
22 TOPS · FIRST 8
Meadows-Clifford 31-30 MD EX42-211-35581
3.1 KM · Tecolote Energy Operating, LLC · Section with this well →
| Brown Dolomite | 4,534 | -1,966 |
| Topeka | 7,091 | -4,523 |
| Brownsville | 7,216 | -4,648 |
| Pennsylvanian | 7,933 | -5,365 |
| Douglas | 8,069 | -5,501 |
| Tonkawa | 8,880 | -6,312 |
| Kansas City | 9,567 | -6,999 |
| Cleveland | 10,245 | -7,677 |
10 TOPS · FIRST 8
Hefley-Prater 32-33 MD CX42-211-35649
3.1 KM · Tecolote Energy Operating, LLC · Section with this well →
| Brown Dolomite | 4,505 | -1,937 |
| Topeka | 7,150 | -4,582 |
| Brownsville | 7,270 | -4,702 |
| Douglas | 8,098 | -5,530 |
| Tonkawa | 8,935 | -6,367 |
| Pennsylvanian | 9,318 | -6,750 |
| Kansas City | 9,835 | -7,267 |
| Cleveland | 10,238 | -7,670 |
10 TOPS · FIRST 8
Hefley-Prater 32-33 ME CX42-211-35650
3.1 KM · Tecolote Energy Operating, LLC · Section with this well →
| Brown Dolomite | 4,505 | -1,937 |
| Topeka | 7,150 | -4,582 |
| Brownsville | 7,270 | -4,702 |
| Douglas | 8,098 | -5,530 |
| Tonkawa | 8,935 | -6,367 |
| Pennsylvanian | 9,318 | -6,750 |
| Kansas City | 9,835 | -7,267 |
| Cleveland | 10,238 | -7,670 |
10 TOPS · FIRST 8
Meek 5453 CXL42-211-35609
3.7 KM · Unit Petroleum Company · Section with this well →
| Brown Dolomite | 4,682 | -1,957 |
| Douglas | 8,197 | -5,472 |
| Tonkawa | 8,990 | -6,265 |
| Kansas City | 9,817 | -7,092 |
| Cleveland | 10,147 | -7,422 |
| Pennsylvanian | 10,496 | -7,771 |
| Oswego | 10,753 | -8,028 |
| Topeka | — |
10 TOPS · FIRST 8
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/21135637, documented in the API reference.