WELL · 42-131-10637 · DISTRICT 4
Duval Ranch Sec. 257 #11 D
Duval County · Vertical
Duval Ranch Sec. 257 #11 D (API 42-131-10637) is a former disposal or injection well in Duval County, last operated by Mobil Producing TX. & N.M. Inc.; its UIC permit is no longer active.
The RRC has issued 3 drilling permits between 1978 and 1983, permitted to 8,272 ft.
Its lease has reported 477K barrels of oil and 19.1K mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
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 | none |
| Production reports | Killam Oil Co., Ltd.through Jan 2026 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Aug 19, 1983 |
- 8,272
- total depth, ft
- 3
- permits on file
- Aug 19, 1983
- last permit issued
- —
- completed
- 477K
- cumulative oil, bbl
- 19.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duval Ranch, Sec. # 257 a/C 1 O-4-1702 | Lundell (Pettus) | Killam Oil Co., Ltd. | 6 | 477K | 19.1K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 336 · prior 12 1,366(-75%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dunigan Petroleum, Inc.Jan 1993 → Dec 1993
- 2Killam Oil CompanyJan 1994 → Mar 1994
- 3Killam Oil Co., Ltd.Apr 1994 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 206645-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Aug 12, 1983 | Aug 19, 1983 | — | 8,272 |
| 49256-99 | Recompletion | Mobil Oil Corporation | Apr 18, 1979 | Apr 18, 1979 | Oct 15, 1979 | 7,480 |
| 39297-99 | Recompletion | Mobil Oil Corporation | Dec 20, 1978 | Dec 20, 1978 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-1702 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,528 | 2,547 | Perforated |
| 5,400 | 5,410 | Perforated |
| 7,828 | 7,836 | Perforated |
| 7,890 | 7,924 | Perforated |
| 7,935 | 7,945 | Perforated |
| 8,148 | 8,156 | Perforated |
| 8,185 | 8,193 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,716 | — | — |
| 9.625 | 1,734 | 12.25 | 425 S |
| 9.625 | 1,734 | 12.5 | 425 S |
| 9.625 | 1,734 | — | — |
| 2.375 | 2,461 | — | — |
| 2.375 | 5,359 | — | — |
| 5.5 | 8,255 | — | — |
| 5.5 | 8,270 | 8.75 | 1,285 S |
| 5.5 | 8,270 | — | — |
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 | Jan 12, 1984 | Jan 1, 1980 | — |
| 00 | Jan 12, 1984 | Mar 26, 1979 | — |
| 00 | Jan 12, 1984 | Oct 20, 1977 | — |
| 00 | Jan 12, 1984 | Dec 4, 1964 | — |
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 42-131-10637 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-10637 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 17M
- bbl, all reported
- Oct 2019
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000050383 | W-14 Disposal | Plugged Aug 30, 2019 | 2,500 | 750 | 1,645–1,673 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 298,983(-100%)
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/13110637, documented in the API reference.