WELL · 42-131-39257 · DISTRICT 4
Santerra #8
Duval County · Lopez North (Lopez) field · Shut IN · Vertical
Santerra #8 (API 42-131-39257) is a well in Duval County operated by Rattlesnake Operating CO LLC, completed May 4, 2013 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued November 4, 2011, permitted to 3,500 ft.
It was permitted by Sanchez Oil & Gas Corporation and has since transferred to Rattlesnake Operating CO LLC on the wellbore schedule.
Completion filings report one formation top, including Mirando.
Its lease has reported 86.1K barrels of oil since October 2011, last reporting in July 2026. The lease carries 10 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
Operator of record
Permitted by Sanchez Oil & Gas Corporation; the EWA schedule now lists a different operator.
Plntersville, TX · P-5 Y, filed May 4, 2026 · 2 permits on file · (907) 229-8398
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Rattlesnake Operating Co LLC |
| Production reports | Rattlesnake Operating Co, LLCthrough Mar 2026 |
| Latest permit | Sanchez Oil & Gas CorporationNov 4, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,500
- total depth, ft
- 1
- permits on file
- Nov 4, 2011
- last permit issued
- May 4, 2013
- completed
- 86.1K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 4, 2013
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Santerra O-4-13690 | Lopez, North (Lopez) | Rattlesnake Operating Co, LLC | 10 | 86.1K | 0 | Oct 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,216 · prior 12 2,272(-2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sanchez Oil & Gas CorporationOct 2011 → Feb 2016
- 2Dallas Petroleum Group, LLCApr 2016 → May 2023
- 3Jalapeno Operating Company, LLCJul 2024 → Sep 2025
- 4Rattlesnake Operating Co, LLCOct 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 727491-99 | Drill | Sanchez Oil & Gas Corporation | Nov 2, 2011 | Nov 4, 2011 | Jan 16, 2012 | 3,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-13690 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 536 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Mirando | 2,102 | -1,566 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,102 | 2,108 | Perforated |
| 2,102 | 2,126 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 319 | 12.25 | 175 S |
| 7 | 2,349 | 8.75 | 320 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 16, 2013 | Oct 31, 2013 | — |
| 00 | Jun 6, 2012 | Apr 4, 2012 | Yes |
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 42-131-39257 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-39257 → 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
- 720K
- bbl, all reported
- Oct 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000108116 | H-1 Injection | Active | 5,000 | 1,000 | 2,102–2,131 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/13139257, documented in the API reference.