WELL · 42-003-31910 · DISTRICT 8
Martin Nellie C. #12
Andrews County · Martin (Tubb) field · Vertical
Martin Nellie C. #12 (API 42-003-31910) is a well in Andrews County operated by Sheridan Production Company LLC, completed May 15, 1993.
The RRC has issued 3 drilling permits (amended once) between 1979 and 1992, permitted to 8,500 ft.
It was permitted by Oryx Energy Company and has since transferred to Sheridan Production Company LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Yates, San Andres, Glorieta, Clear Fork.
Its 4 leases have reported 1.39M barrels of oil and 11.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 81 wells, so these are lease totals, not this well alone.
Operator of record
Sheridan Production Company LLC
Permitted by Oryx Energy Company; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed May 12, 2020 · 1,009 permits on file · (877) 231-5058
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sheridan Production Company LLC |
| Production reports | Unitex Oil & Gas, L.L.C.through Apr 2026 |
| Latest permit | Oryx Energy CompanySep 14, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 4
- permits on file
- Sep 14, 1992
- last permit issued
- May 15, 1993
- completed
- 1.39M
- cumulative oil, bbl
- 11.9M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 15, 1993
- 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 4 leases this well is completed on; they carry 81 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Martin, Nellie C. O-10-36485 | Martin (Consolidated) | Unitex Oil & Gas, L.L.C. | 33 | 702K | 4.31M | Dec 2000 – Jul 2026 |
| Martin, Nellie C. O-10-18604 | Goldsmith, N. (San Andres, Con.) | Sheridan Production Company, LLC | 13 | 83.2K | 276K | Jan 1993 – Mar 2011 |
| Martin, Nellie C. O-10-23340 | Martin (Tubb) | Sheridan Production Company, LLC | 19 | 563K | 6.2M | Jan 1993 – Mar 2011 |
| Martin, Nellie C. O-10-9314 | Martin (Clear Fork) | Kerr-McGee Oil & Gas Onshore LLC | 16 | 45.2K | 1.14M | Jan 1993 – Apr 2001 |
Oil, barrels lease total
Last 12 months 26,573 · prior 12 29,475(-10%)
Gas, mcf lease total
Last 12 months 109,613 · prior 12 142,113(-23%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Oryx Energy CompanyJan 1993 → Mar 1999
- 2Kerr-McGee CorporationApr 1999 → Sep 1999
- 3Kerr-McGee Oil & Gas Onshore LLCOct 1999 → Nov 2002
- 4Aethon I LPDec 2002 → Nov 2007
- 5Sheridan Production Company, LLCDec 2007 → Jul 2012
- 6Lime Rock Resources II-a, L.P.Aug 2012 → Sep 2018
- 7Unitex Oil & Gas, L.L.C.Oct 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 402255-98 | Other | Oryx Energy Company | Jan 19, 1993 | Sep 14, 1992 | Feb 1, 1993 | 8,300 |
| 402255-99 | Other | Oryx Energy Company | Aug 12, 1992 | Sep 14, 1992 | — | 8,300 |
| 348482-99 | Recompletion | Sun Expl. & Prod. Co.-Midland | Jul 1, 1988 | Jul 1, 1988 | — | 8,300 |
| 52415-99 | Drill | Sun Exploration & Production Co. | Jul 9, 1979 | Jul 9, 1979 | Jul 18, 1979 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-9314 | — | — | — | — |
| — | — O-10-18604 | — | — | — | — |
| — | — O-10-23340 | — | — | — | — |
| — | — O-10-36485 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,308 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,787 | 521 |
| San Andres | 4,205 | -897 |
| Glorieta | 5,377 | -2,069 |
| Clear ForkCLEARFORK | 5,602 | -2,294 |
| Clear Fork | 5,625 | -2,317 |
| Tubb | 6,193 | -2,885 |
| Tubb | 6,262 | -2,954 |
| Wichita-AlbanyWICHITA ALBANY | 6,811 | -3,503 |
| Permian (undifferentiated)BASE PERMIAN | 7,938 | -4,630 |
| Fusselman | 8,000 | -4,692 |
| Fusselman | 8,006 | -4,698 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,356 | 4,581 | Perforated |
| 4,356 | 5,314 | Perforated |
| 4,356 | 5,790 | Perforated |
| 5,628 | 6,070 | Perforated |
| 5,631 | 5,643 | Perforated |
| 5,727 | 5,736 | Perforated |
| 5,760 | 5,790 | Perforated |
| 6,282 | 6,549 | Perforated |
| 6,741 | 7,268 | Perforated |
| — | 6,549 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 355 | 17 | 400 S |
| 13.375 | 355 | 17.5 | 400 S |
| 8.625 | 4,761 | 12.25 | 1,525 S |
| 8.625 | 4,810 | 12.25 | 1,825 S |
| 2.375 | 6,269 | — | — |
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 | Oct 8, 2015 | Jun 23, 2015 | Yes |
| 00 | Jun 28, 2012 | Sep 13, 2011 | — |
| 00 | Jan 20, 2011 | Oct 5, 1995 | — |
| 00 | Aug 10, 1995 | Oct 5, 1995 | — |
| 00 | Apr 17, 1995 | — | — |
| 00 | Jan 3, 1994 | Oct 28, 1993 | Yes |
| 00 | May 6, 1993 | Mar 1, 1993 | Yes |
| 00 | Mar 30, 1993 | — | — |
| 00 | Jan 18, 1989 | Dec 15, 1988 | Yes |
| 00 | Jan 5, 1989 | — | — |
| 00 | Jan 12, 1984 | Mar 19, 1980 | — |
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 42-003-31910 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-31910 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/00331910, documented in the API reference.