WELL · 42-479-37723 · DISTRICT 4
Martin Sophie J. #B 9
Webb County · Cerrito Creek (Lobo Cons.) field · Producing · Vertical
Martin Sophie J. #B 9 (API 42-479-37723) is a well in Webb County operated by Arete Operating Company Iii LLC, completed January 19, 2005 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 2001 and 2005, permitted to 11,000 ft.
It was permitted by Calpine Natural Gas L.P. and has since transferred to Arete Operating Company Iii LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Lobo Unconformity, Wills Point.
No lease production has been reported under this well’s leases.
Operator of record
Arete Operating Company III LLC
Permitted by Calpine Natural Gas L.P.; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Sep 4, 2025 · (210) 325-9383
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Arete Operating Company III LLC |
| Production reports | Arete Operating Company III, LLCthrough Apr 2026 |
| Latest permit | Calpine Natural Gas L.P.Jan 14, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 2
- permits on file
- Jan 14, 2005
- last permit issued
- Jan 19, 2005
- completed
- 0
- cumulative oil, bbl
- 1.6M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2001 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 19, 2005
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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, S. J. G-4-182711 | Dolores Creek, South (Wx. 9200) | Arete Operating Company II, LLC | 1 | 0 | 663K | Mar 2001 – Jul 2026 |
| Martin, Sophie J. G-4-207828 | Dolores Creek (Wilcox 8200) | Arete Operating Company III, LLC | 1 | 0 | 941K | Jan 2005 – Jul 2026 |
Gas, mcf lease total
Last 12 months 3,541 · prior 12 4,186(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Michael Petroleum CorporationMar 2001 → Dec 2001
- 2Calpine Natural Gas CompanyJan 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 |
|---|---|---|---|---|---|---|
| 556110-99 | Recompletion | Calpine Natural Gas L.P. | Jan 12, 2005 | Jan 14, 2005 | Jan 11, 2005 | 9,550 |
| 504676-99 | Drill | Michael Petroleum Corporation | Jan 29, 2001 | Jan 29, 2001 | Feb 20, 2001 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-182711 | — | — | — | — |
| — | — G-4-207828 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 497 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Unconformity | 8,170 | -7,673 |
| Wills Point | 9,500 | -9,003 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,214 | 8,230 | Perforated |
| 8,398 | 8,405 | Perforated |
| 8,830 | 8,852 | Open hole |
| 9,260 | 9,316 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,500 | 12.25 | 520 S |
| 7 | 6,790 | 8.75 | 290 S |
| 3.5 | 9,545 | 6.125 | 415 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 | Jan 26, 2006 | Aug 26, 2005 | — |
| 00 | Jun 30, 2005 | Feb 23, 2005 | Yes |
| 00 | Apr 29, 2005 | — | — |
| 00 | Jul 23, 2001 | May 29, 2001 | Yes |
| 00 | Jun 8, 2001 | — | — |
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 42-479-37723 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-37723 → 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/47937723, documented in the API reference.