TEXAS · WELLS · REAGAN COUNTY · COX, J. H. LEASE · API 42-383-33177 · DISTRICT 6E
Cox J. H. #1
Reagan County · Spraberry (Trend Area) field · Vertical
Cox J. H. #1 (API 42-383-33177) is a plugged well in Reagan County, plugged October 3, 2019, last operated by Endeavor Energy Resources L.P..
The RRC has issued one drilling permit, issued August 29, 1984, permitted to 8,000 ft.
It was permitted by Oak Brook Energy, Inc. and has since transferred to Endeavor Energy Resources L.P. on the wellbore schedule.
Completion filings report 3 formation tops, including San Andres, Spraberry, Dean.
Its lease has reported 4.5K barrels of oil and 23.2K mcf of gas since the record begins in January 1993, with no volume in the three years through August 2026.
Operator of record
Endeavor Energy Resources L.P.
Permitted by Oak Brook Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 12, 2026
- Permits on file
- 6,190
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Endeavor Energy Resources L.P. |
| Production reports | Endeavor Energy Resources L.P.through Jan 2009 |
| Latest permit | Oak Brook Energy, Inc.Aug 29, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Aug 29, 1984
- last permit issued
- Dec 5, 1984
- completed
- 4.5K
- cumulative oil, bbl
- 23.2K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH JAN 2009
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 5, 1984
- Shut in
- —
- Plugged
- Oct 3, 2019
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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 |
|---|---|---|---|---|---|---|
| Cox, J. H. O-9-11138 | Spraberry (Trend Area) | Endeavor Energy Resources L.P. | 1 | 4.5K | 23.2K | by Jan 1993 – Jan 2009 |
No volumes reported on these leases in the last three years.
Wells named Cox J. H.
Endeavor Energy Resources L.P.'s other wells filed under this lease name in Reagan County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Endeavor Energy Resources L.P. | Sep 1, 2000 | today |
| Stephens, Autry C. | Sep 1, 1991 | Sep 1, 2000 |
| Ads Operating, Inc. | Sep 1, 1989 | Sep 1, 1991 |
| L & T Oil Co., Inc. | Dec 31, 1986 | Sep 1, 1989 |
| Gas Lift Sales & Service, Inc. | Sep 1, 1985 | Dec 31, 1986 |
| Oak Brook Energy, Inc. | Jan 31, 1985 | Sep 1, 1985 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Stephens, Autry C.Jan 1993 → Aug 2000
- 2Endeavor Energy Resources L.P.Sep 2000 → Jul 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 249852-99 | Drill | Oak Brook Energy, Inc. | Jul 26, 1984 | Aug 29, 1984 | — | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 5, 1984 | Cox J. H. O-9-11138 | Spraberry (Trend Area) | Endeavor Energy Resources L.P. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,672 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 2,635 | 37 |
| SpraberryLOWER SPRABERRY | 6,598 | -3,926 |
| Dean | 7,152 | -4,480 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,606 | 6,844 | Perforated |
| 6,858 | 7,077 | Perforated |
| 7,510 | 7,681 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 524 | 12.25 | 300 S |
| 4.5 | 7,800 | 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. 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 | Feb 6, 1985 | Dec 27, 1984 | — |
| 00 | Feb 1, 1985 | — | — |
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 42-383-33177 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-33177 → 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/38333177, documented in the API reference.