WELL · 42-127-38898 · DISTRICT 1
Ammann #405H
Dimmit County · Hugh Fitzsimmons (San Miguel) field · Producing · Horizontal
Ammann #405H (API 42-127-38898) is a horizontal well in Dimmit County operated by Endeavor Natural Gas LP, completed April 8, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 23, 2024, permitted to 4,000 ft.
Completion filings report 9 formation tops, including Escondido, Olmos, San Miguel, Austin Chalk.
Its lease has reported 547K barrels of oil and 1.23M mcf of gas since July 2022, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Apr 4, 2026 · 203 permits on file · (830) 876-8874
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Endeavor Natural Gas LP |
| Production reports | Endeavor Natural Gas, LPthrough Apr 2026 |
| Latest permit | Endeavor Natural Gas, LPFeb 23, 2024 |
- 4,000
- total depth, ft
- 1
- permits on file
- Feb 23, 2024
- last permit issued
- Apr 8, 2024
- completed
- 547K
- cumulative oil, bbl
- 1.23M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2022 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 8, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
28.416302, -100.039038
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Dimmit 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; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ammann O-1-20667 | Hugh Fitzsimmons (San Miguel) | Endeavor Natural Gas, LP | 7 | 547K | 1.23M | Jul 2022 – Jul 2026 |
Oil, barrels lease total
Last 12 months 163,773 · prior 12 159,264(+3%)
Gas, mcf lease total
Last 12 months 359,022 · prior 12 431,303(-17%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Endeavor Natural Gas, LPJul 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 897424-99 | Drill | Endeavor Natural Gas, LP | Feb 16, 2024 | Feb 23, 2024 | Mar 29, 2024 | 4,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-20667 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 791 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDIDO - DISPOSAL | 1,200 | -409 |
| OlmosOLMOS - DISPOSAL | 2,100 | -1,309 |
| San MiguelSAN MIGUEL - H2S | 3,274 | -2,483 |
| Austin ChalkAUSTIN CHALK - H2S | — | — |
| Eagle FordEAGLE FORD - H2S | — | — |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,655 | 7,672 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 877 | 11 | 290 S |
| 4.5 | 7,816 | 7.875 | 1,500 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 | Jul 11, 2024 | May 28, 2024 | 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 42-127-38898 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-38898 → 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.
Ammann42-127-38678
0.0 KM · Endeavor Natural Gas, LP · Section with this well →
| Escondido | 1,200 | -410 |
| Olmos | 2,250 | -1,460 |
| San Miguel | 3,093 | -2,303 |
| Eagle Ford | — | |
| Austin Chalk | — | |
| Glen Rose | — | |
| Georgetown | — | |
| Edwards | — |
9 TOPS · FIRST 8
Ammann42-127-38679
0.0 KM · Endeavor Natural Gas, LP · Section with this well →
| Escondido | 1,200 | -410 |
| Olmos | 2,100 | -1,310 |
| San Miguel | 2,700 | -1,910 |
| Edwards | — | |
| Georgetown | — | |
| Glen Rose | — | |
| Pearsall | — | |
| Austin Chalk | — |
9 TOPS · FIRST 8
Hamilton Fee42-127-38508
0.7 KM · Hamilton, J. R. · Section with this well →
| Escondido | 1,160 | -347 |
| Olmos | 2,130 | -1,317 |
| San Miguel | 3,100 | -2,287 |
| Pearsall | — | |
| Glen Rose | — | |
| Austin Chalk | — | |
| Georgetown | — | |
| Eagle Ford | — |
9 TOPS · FIRST 8
Hamilton Ranch42-127-38581
1.3 KM · Grit Oil & Gas Management, LLC · Section with this well →
| Escondido | 1,018 | -228 |
| Olmos | 2,009 | -1,219 |
| San Miguel | 2,773 | -1,983 |
| Austin Chalk | — | |
| Eagle Ford | — | |
| Edwards | — | |
| Georgetown | — | |
| Glen Rose | — |
9 TOPS · FIRST 8
Hamilton Ranch42-127-38582
1.3 KM · Grit Oil & Gas Management, LLC · Section with this well →
| Escondido | 1,018 | -228 |
| Olmos | 2,009 | -1,219 |
| San Miguel | 2,773 | -1,983 |
| Edwards | — | |
| Eagle Ford | — | |
| Georgetown | — | |
| Glen Rose | — | |
| Austin Chalk | — |
9 TOPS · FIRST 8
Hamilton Ranch42-127-38583
1.3 KM · Grit Oil & Gas Management, LLC · Section with this well →
| Escondido | 1,018 | -228 |
| Olmos | 2,009 | -1,219 |
| San Miguel | 2,773 | -1,983 |
| Edwards | — | |
| Georgetown | — | |
| Eagle Ford | — | |
| Pearsall | — | |
| Glen Rose | — |
9 TOPS · FIRST 8
Hamilton Ranch42-127-38584
1.3 KM · Grit Oil & Gas Management, LLC · Section with this well →
| Escondido | 1,018 | -229 |
| Olmos | 2,009 | -1,220 |
| San Miguel | 2,773 | -1,984 |
| Eagle Ford | — | |
| Austin Chalk | — | |
| Pearsall | — | |
| Glen Rose | — | |
| Georgetown | — |
9 TOPS · FIRST 8
Hamilton Ranch42-127-38585
1.4 KM · Grit Oil & Gas Management, LLC · Section with this well →
| Escondido | 1,018 | -229 |
| Olmos | 2,009 | -1,220 |
| San Miguel | 2,773 | -1,984 |
| Eagle Ford | — | |
| Edwards | — | |
| Austin Chalk | — | |
| Pearsall | — | |
| Glen Rose | — |
9 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/12738898, documented in the API reference.