WELL · 42-371-10502 · DISTRICT 8
Big Tex North #1351
Pecos County · Wolfbone (Trend Area) field · Shut IN · Vertical
Big Tex North #1351 (API 42-371-10502) is a well in Pecos County operated by Swordfish Energy Operating LLC, completed March 14, 2011 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued October 6, 2010, permitted to 11,000 ft.
It was permitted by Whiting Oil And Gas Corporation and has since transferred to Swordfish Energy Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Brushy Canyon, Bone Spring, Wolfcamp.
Its lease has reported 134K barrels of oil and 295K mcf of gas since March 2011, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Swordfish Energy Operating LLC
Permitted by Whiting Oil and Gas Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Sep 4, 2025 · 2 permits on file · (281) 371-9035
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Swordfish Energy Operating LLC |
| Production reports | Pecos River Exploration, LLCthrough Oct 2024 |
| Latest permit | Whiting Oil and Gas CorporationOct 6, 2010 |
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
- Oct 6, 2010
- last permit issued
- Mar 14, 2011
- completed
- 134K
- cumulative oil, bbl
- 295K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 14, 2011
- 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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Big Tex North O-10-41551 | Wolfbone (Trend Area) | Swordfish Energy Operating, LLC | 3 | 134K | 295K | Mar 2011 – Jul 2026 |
Gas, mcf lease total
Last 12 months 0 · prior 12 52(-100%)
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Whiting Oil and Gas CorporationMar 2011 → Feb 2014
- 2Jagged Peak Energy LLCMar 2014 → Jan 2020
- 3Parsley Energy Operations, LLCFeb 2020 → Sep 2020
- 4Pecos River Exploration, LLCOct 2020 → May 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 703094-98 | Reenter | Whiting Oil and Gas Corporation | Jan 11, 2011 | Oct 6, 2010 | Oct 8, 2010 | 11,000 |
| 703094-99 | Reenter | Whiting Oil and Gas Corporation | Oct 1, 2010 | Oct 6, 2010 | — | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-41551 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,620 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brushy Canyon | 6,559 | -3,939 |
| Bone Spring | 7,079 | -4,459 |
| Wolfcamp | 9,422 | -6,802 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,065 | 9,085 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,284 | 17.5 | 1,546 S |
| 7.625 | 9,130 | 9.875 | 1,076 S |
| 5.5 | 9,910 | 6.625 | 980 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 | Jun 21, 2012 | May 4, 2011 | 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 42-371-10502 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-10502 → 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/37110502, documented in the API reference.