WELL · 42-383-31864 · DISTRICT 7
Masterson T. R. B. #4
Reagan County · Spraberry (Trend Area) field · Producing · Vertical
Masterson T. R. B. #4 (API 42-383-31864) is a well in Reagan County operated by Civitas Permian Operating LLC, completed February 12, 1981 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 22, 1981, permitted to 7,850 ft.
It was permitted by Hanley Petroleum Inc. and has since transferred to Civitas Permian Operating LLC on the wellbore schedule.
Its lease has reported 34.3K barrels of oil and 683K mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Hanley Petroleum Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 21, 2025
- Permits on file
- 477
- Phone
- (303) 861-8140
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Civitas Permian Operating LLC |
| Production reports | Civitas Permian Operating, LLCthrough Dec 2025 |
| Latest permit | Hanley Petroleum Inc.Jan 22, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,850
- total depth, ft
- 1
- permits on file
- Jan 22, 1981
- last permit issued
- Feb 12, 1981
- completed
- 34.3K
- cumulative oil, bbl
- 683K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 12, 1981
- 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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Masterson, T. R. B. O-9-2369 | Spraberry (Trend Area) | Civitas Permian Operating, LLC | 5 | 34.3K | 683K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hanley Petroleum Inc.Jan 1993 → Feb 1999
- 2Concho Resources Inc.Mar 1999 → Jun 2001
- 3Devon Energy Production Co, L.P.Jul 2001 → Jun 2002
- 4Merit Energy CompanyJul 2002 → Nov 2013
- 5Hunt Oil CompanyDec 2013 → Jul 2019
- 6Civitas Permian Operating, LLCDec 2025 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 105825-99 | Drill | Hanley Petroleum Inc. | Jan 22, 1981 | Jan 22, 1981 | Jan 31, 1981 | 7,850 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-2369 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,361 | 7,786 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,874 | 11 | 800 S |
| 2.375 | 7,295 | — | — |
| 4.5 | 7,864 | 7.875 | 500 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 12, 1984 | Mar 25, 1981 | — |
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 42-383-31864 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-31864 → 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/38331864, documented in the API reference.