WELL · 42-127-31077 · DISTRICT 1
San Pedro Ranch #135
Dimmit County · Hugh Fitzsimons (Olmos) field · Vertical
San Pedro Ranch #135 (API 42-127-31077) is a plugged well in Dimmit County, plugged April 30, 2009, last operated by Prime Operating Company.
The RRC has issued one drilling permit, issued January 29, 1997, permitted to 6,708 ft.
Completion filings report 8 formation tops, including Escondido, Olmos, San Miguel, Anacacho.
Its 2 leases have reported 886K barrels of oil and 9.72M mcf of gas since January 1993, last reporting in December 2023. The leases carry 197 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 29, 2026
- Permits on file
- 595
- Phone
- (432) 682-5600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Prime Operating Company |
| Production reports | Prime Operating Companythrough Jan 2023 |
| Latest permit | Prime Operating CompanyJan 29, 1997 |
- 6,708
- total depth, ft
- 1
- permits on file
- Jan 29, 1997
- last permit issued
- Aug 27, 1983
- completed
- 886K
- cumulative oil, bbl
- 9.72M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 27, 1983
- Shut in
- —
- Plugged
- Apr 30, 2009
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 197 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| San Pedro Ranch O-1-4762 | Hugh Fitzsimmons (San Miguel) | Prime Operating Company | 179 | 802K | 9.36M | Jan 1993 – Dec 2023 |
| San Pedro Ranch O-1-4761 | Hugh Fitzsimons (Olmos) | Prime Operating Company | 18 | 84.3K | 358K | Jan 1993 – Sep 2020 |
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.
- 1Prime Operating CompanyJan 1993 → Nov 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 457866-99 | Recompletion | Prime Operating Company | Jan 27, 1997 | Jan 29, 1997 | Aug 26, 1983 | 6,708 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 27, 1983 | San Pedro Ranch O-1-4761 | Hugh Fitzsimons (Olmos) | Prime Operating Company | Plugged | — |
| Apr 1, 1982 | San Pedro Ranch O-1-4762 | Hugh Fitzsimmons (San Miguel) | Prime Operating Company | Plugged | — |
| Apr 1, 1982 | San Pedro Ranch O-1-4762 | Hugh Fitzsimmons (San Miguel) | Prime Operating Company | Plugged | — |
| Mar 2, 1977 | Fitzsimons Hugh -B- O-1-4853 | Hugh Fitzsimmons (San Miguel) | Galaxy Oil Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 711 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Escondido | 1,463 | -752 |
| Olmos | 2,508 | -1,797 |
| San Miguel2ND SAN MIGUEL | 3,877 | -3,166 |
| Anacacho | 4,748 | -4,037 |
| Austin ChalkAUSTIN | 5,080 | -4,369 |
| Buda | 6,180 | -5,469 |
| Del Rio | 6,328 | -5,617 |
| Georgetown | 6,456 | -5,745 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,097 | 3,110 | Perforated |
| 3,920 | — | Perforated |
| — | 3,882 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 738 | 12.25 | 425 S |
| — | 4,344 | 7.875 | 950 S |
| 4.5 | 6,400 | 7.875 | 800 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 | Mar 12, 1997 | Dec 2, 1996 | Yes |
| 00 | Feb 6, 1997 | — | — |
| 00 | Jul 9, 1987 | — | — |
| 00 | May 25, 1984 | — | — |
| 00 | Jan 12, 1984 | Apr 4, 1977 | — |
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 42-127-31077 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-31077 → 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/12731077, documented in the API reference.