WELL · 42-215-31641 · DISTRICT 4
Hamman Unit A #4F
Hidalgo County · Monte Christo (Frio Cons.) field · Vertical
Hamman Unit A #4F (API 42-215-31641) is a plugged well in Hidalgo County, plugged June 7, 2011, last operated by Mobil Producing TX. & N.M. Inc..
The RRC has issued 2 drilling permits between 1985 and 1998, permitted to 10,100 ft.
Completion filings report one formation top, including Frio.
Operator of record
Mobil Producing TX. & N.M. Inc.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 4, 2025
- Permits on file
- 6,763
- Phone
- (346) 474-9142
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mobil Producing TX. & N.M. Inc. |
| Production reports | Mobil Producing TX. & N.M. Inc.through Oct 2008 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Jun 23, 1998 |
- 10,100
- total depth, ft
- 2
- permits on file
- Jun 23, 1998
- last permit issued
- Dec 2, 1998
- completed
- 0
- cumulative oil, bbl
- 353K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jun 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 2, 1998
- Shut in
- —
- Plugged
- Jun 7, 2011
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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hamman Unit "A" G-4-169902 | Monte Christo (Frio Cons.) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 62K | Jul 1998 – Jun 2011 |
| Hamman Unit "A" G-4-119984 | Monte Christo (F-6) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 200K | Jan 1993 – Apr 2003 |
| Hamman Unit "A" G-4-119502 | Monte Christo (Frio F-9) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 90.7K | Jan 1993 – Jul 1998 |
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.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Oct 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 477380-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Jun 23, 1998 | Jun 23, 1998 | Jul 30, 1998 | 10,100 |
| 281626-99 | Drill | Superior Oil Company, The | Oct 28, 1985 | Aug 2, 1985 | Sep 18, 1985 | 10,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 2, 1998 | Hamman Unit A G-4-169902 | Monte Christo (Frio Cons.) | Mobil Producing TX. & N.M. Inc. | Plugged | — |
| Jan 11, 1986 | Hamman Unit A G-4-119984 | Monte Christo (F-6) | Mobil Producing TX. & N.M. Inc. | Plugged | — |
| Dec 22, 1985 | Hamman Unit A G-4-119502 | Monte Christo (Frio F-9) | Mobil Producing TX. & N.M. Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 184 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,016 | 8,052 | Perforated |
| 8,108 | 8,148 | Perforated |
| 8,344 | 8,386 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 60 | — | — |
| 10.625 | 1,871 | — | — |
| 9.625 | 1,871 | 12.25 | 560 S |
| 9.625 | 1,871 | — | — |
| 2.875 | 9,584 | 8.75 | 2,563 S |
| 2.875 | 9,584 | — | — |
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 | May 10, 1999 | Apr 23, 1999 | — |
| 00 | Feb 25, 1999 | Jan 21, 1999 | — |
| 00 | Oct 28, 1998 | Sep 18, 1998 | Yes |
| 00 | Sep 24, 1998 | — | — |
| 00 | Apr 3, 1986 | Mar 17, 1986 | Yes |
| 00 | Mar 3, 1986 | Feb 11, 1986 | Yes |
| 00 | Feb 19, 1986 | — | — |
| 00 | Jan 16, 1986 | Jan 7, 1986 | Yes |
| 00 | Jan 14, 1986 | — | — |
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 42-215-31641 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-215-31641 → 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/21531641, documented in the API reference.