WELL · 42-435-34620 · DISTRICT 7
Masterson 37 #5
Sutton County · Phyllis Sonora (Canyon Lower) field · Producing · Vertical
Masterson 37 #5 (API 42-435-34620) is a well in Sutton County operated by Toc Energy Resources LLC, completed November 12, 1996 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 28, 1996, permitted to 6,000 ft.
It was permitted by Byrd Operating Company and has since transferred to Toc Energy Resources LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Leonard, Wolfcamp, Canyon.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Byrd Operating Company; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 3, 2026
- Permits on file
- 2
- Phone
- (817) 348-0528
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Toc Energy Resources LLC |
| Production reports | Toc Energy Resources, LLCthrough Mar 2026 |
| Latest permit | Byrd Operating CompanyAug 28, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Aug 28, 1996
- last permit issued
- Nov 12, 1996
- completed
- 0
- cumulative oil, bbl
- 984K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1996 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 12, 1996
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Masterson 37 G-9-160909 | Phyllis Sonora (Canyon Lower) | Toc Energy Resources, LLC | 1 | 0 | 984K | Nov 1996 – Jul 2026 |
Gas, mcf lease total
Last 12 months 993 · prior 12 4,835(-79%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Byrd Operating CompanyNov 1996 → Feb 2017
- 2Tug Hill Operating, LLCMar 2017 → May 2021
- 3Toc Energy Resources, LLCJun 2021 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 451895-99 | Drill | Byrd Operating Company | Aug 26, 1996 | Aug 28, 1996 | Sep 26, 1996 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-160909 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,386 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,663 | 4,790 | Perforated |
| 5,707 | 5,746 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,302 | 11 | 525 S |
| 4.5 | 5,857 | 7.875 | 480 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 | Jan 24, 1997 | Dec 2, 1996 | Yes |
| 00 | Jan 2, 1997 | — | — |
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 42-435-34620 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-34620 → 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/43534620, documented in the API reference.