WELL · 42-131-39372 · DISTRICT 4

Santerra #11

Y

Duval County · Lopez North (Lopez) field · Producing  · Vertical

Santerra #11 (API 42-131-39372) is a well in Duval County operated by Rattlesnake Operating CO LLC, completed June 9, 2013 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued April 3, 2013, 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 3 formation tops, including 1st Mirando, 2nd Mirando, 3rd 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.

Operator of record

Rattlesnake Operating Co LLC

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 scheduleRattlesnake Operating Co LLC
Production reportsRattlesnake Operating Co, LLCthrough Mar 2026
Latest permitSanchez Oil & Gas CorporationApr 3, 2013

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
Apr 3, 2013
last permit issued
Jun 9, 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
Jun 9, 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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Santerra O-4-13690Lopez, North (Lopez)Rattlesnake Operating Co, LLC1086.1K0Oct 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 2,216 · prior 12 2,272(-2%)

0200400600202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Sanchez Oil & Gas CorporationOct 2011 → Feb 2016
  2. 2Dallas Petroleum Group, LLCApr 2016 → May 2023
  3. 3Jalapeno Operating Company, LLCJul 2024 → Sep 2025
  4. 4Rattlesnake Operating Co, LLCOct 2025 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
759937-99DrillSanchez Oil & Gas CorporationApr 2, 2013Apr 3, 2013May 30, 20133,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-4-13690————

Formation tops

As filed on W-2/G-1. Subsea from 536 ft elevation.Download CSV →

FormationMD ftSubsea
1ST Mirando2,104-1,568
2ND Mirando2,168-1,632
3RD Mirando2,220-1,684

Perforations

Perforated and open-hole intervals.

FromToType
2,1052,112Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62538312.25180 S
72,5008.75220 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Feb 1, 2014Aug 21, 2013Yes

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.

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/13139372, documented in the API reference.