TEXAS · WELLS · REAGAN COUNTY · MCMASTER "E" LEASE · API 42-383-33564 · DISTRICT 6E
McMaster E #1
Reagan County · Spraberry (Trend Area) field · Vertical
Mcmaster E #1 (API 42-383-33564) is a plugged well in Reagan County, plugged April 3, 1998, last operated by Cox John L..
The RRC has issued one drilling permit, issued September 9, 1985, permitted to 8,300 ft.
Completion filings report 2 formation tops, including Cretaceous, Spraberry.
Its lease has reported 2.27K barrels of oil and 60.5K mcf of gas since January 1993, with no volume in the three years through April 2026.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Mar 21, 2003
- Permits on file
- 1,123
- Phone
- (432) 682-9435
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cox John L. |
| Production reports | Cox, John L.through Dec 1997 |
| Latest permit | Cox, John L.Sep 9, 1985 |
- 8,300
- total depth, ft
- 1
- permits on file
- Sep 9, 1985
- last permit issued
- Jan 5, 1986
- completed
- 2.27K
- cumulative oil, bbl
- 60.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 1997
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 5, 1986
- Shut in
- —
- Plugged
- Apr 3, 1998
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 |
|---|---|---|---|---|---|---|
| McMaster "E" O-9-11733 | Spraberry (Trend Area) | Cox, John L. | 1 | 2.27K | 60.5K | Jan 1993 – Dec 1997 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cox, John L.Jan 1993 → Dec 1997
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 284481-99 | Drill | Cox, John L. | Sep 6, 1985 | Sep 9, 1985 | — | 8,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 5, 1986 | McMaster E O-9-11733 | Spraberry (Trend Area) | Cox John L. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,668 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,729 | 7,220 | Perforated |
| 7,401 | 7,770 | Perforated |
| 7,893 | 8,040 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 453 | 12.5 | 400 S |
| 4.5 | 8,120 | 7.875 | 1,400 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 20, 1986 | Jan 10, 1986 | Yes |
| 00 | Jan 17, 1986 | — | — |
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 42-383-33564 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-33564 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/38333564, documented in the API reference.