TEXAS · WELLS · WEBB COUNTY · API 42-479-35128 · DISTRICT 04
Martin Sophie J. B #4
Webb County · Dolores Creek South (Lobo 1) field · Producing · Vertical
Martin Sophie J. B #4 (API 42-479-35128) is a well in Webb County operated by Arete Operating Company Iii LLC, completed October 13, 1995 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1990 and 1995, permitted to 9,500 ft.
It was permitted by Michael Petroleum Corporation and has since transferred to Arete Operating Company Iii LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Queen City, Recklaw, Wilcox, Midway.
No lease production has been reported under this well’s leases.
Operator of record
Arete Operating Company III LLC
Permitted by Michael Petroleum Corporation; the EWA schedule now lists a different operator.
- Based in
- San Antonio, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Feb 10, 2026
- Phone
- (210) 325-9383
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Michael Petroleum Corporation |
| Production reports | Arete Operating Company III, LLCthrough Apr 2026 |
| Latest permit | Michael Petroleum CorporationSep 18, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 2
- permits on file
- Sep 18, 1995
- last permit issued
- Oct 13, 1995
- completed
- 0
- cumulative oil, bbl
- 399K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 13, 1995
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Martin, Sophie J. "B" G-4-155896 | Dolores Creek, South (Lobo 1) | Arete Operating Company III, LLC | 1 | 0 | 236K | Oct 1995 – Jul 2026 |
| Martin, Sophie J. "B" G-4-137345 | Dolores Creek, South (Wx. 9200) | Michael Petroleum Corporation | 1 | 0 | 164K | Jan 1993 – Feb 1996 |
Gas, mcf lease total
Last 12 months 1,277 · prior 12 1,250(+2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Michael Petroleum CorporationJan 1993 → Sep 2001
- 2Calpine Natural Gas CompanyFeb 2002 → Apr 2002
- 3Calpine Natural Gas Company L.P.May 2002 → Jul 2002
- 4Calpine Natural Gas L.P.Aug 2002 → Dec 2005
- 5Rosetta Resources Operating LPJan 2006 → Jun 2012
- 6Pinpoint Energy Operating, LLCJul 2012 → Aug 2012
- 7Petropoint Energy Operating, LLCSep 2012 → Jul 2014
- 8White Oak Operating Company LLCAug 2014 → Dec 2020
- 9Arete Operating Company II, LLCJan 2021 → Jun 2025
- 10Arete Operating Company III, LLCJul 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 439772-99 | Recompletion | Michael Petroleum Corporation | Sep 11, 1995 | Sep 18, 1995 | Aug 31, 1995 | 8,900 |
| 381384-99 | Drill | Michael Petroleum Corporation | Nov 21, 1990 | Nov 21, 1990 | Nov 26, 1990 | 9,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 13, 1995 | Martin Sophie J. B G-4-155896 | Dolores Creek South (Lobo 1) | Arete Operating Company III LLC | Producing | 9,500 |
| Dec 31, 1990 | Martin Sophie J. B G-4-137345 | Dolores Creek South (Wx. 9200) | Michael Petroleum Corporation | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 489 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 2,930 | -2,441 |
| Recklaw | 4,070 | -3,581 |
| Wilcox | 4,540 | -4,051 |
| Midway | 9,270 | -8,781 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,846 | 8,878 | Perforated |
| 9,092 | 9,139 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 747 | 12.25 | 320 S |
| 7 | 7,132 | 8.75 | 420 S |
| 4.5 | 9,463 | 6.125 | 300 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 | Dec 8, 1995 | Oct 30, 1995 | Yes |
| 00 | Nov 9, 1995 | — | — |
| 00 | Apr 11, 1991 | Feb 25, 1991 | Yes |
| 00 | Mar 26, 1991 | — | — |
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 42-479-35128 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-35128 → 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/47935128, documented in the API reference.