WELL · 42-329-32138 · DISTRICT 8
Cosper '37' #1
Midland County · Vertical
Cosper '37' #1 (API 42-329-32138) is a plugged well in Midland County, plugged September 24, 1990, last operated by Endeavor Energy Resources L.P..
The RRC has issued 3 drilling permits between 1989 and 2018, permitted to 12,000 ft.
Completion filings report 8 formation tops, including Yates, Spraberry, Dean, Wolfcamp.
Its lease has reported 393K barrels of oil and 922K mcf of gas since September 2008, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Endeavor Energy Resources L.P.
Midland, TX · P-5 Y, filed Apr 4, 2026 · 6,190 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Endeavor Energy Resources L.P.Oct 4, 2018 |
- 12,000
- total depth, ft
- 3
- permits on file
- Oct 4, 2018
- last permit issued
- —
- completed
- 393K
- cumulative oil, bbl
- 922K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- Sep 24, 1990
Surface location
32.052589, -101.860769
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Midland County.
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cosper "37" O-10-39198 | Spraberry (Trend Area) | Diamondback E&P LLC | 7 | 393K | 922K | Sep 2008 – Jul 2026 |
Oil, barrels lease total
Last 12 months 4,149 · prior 12 5,714(-27%)
Gas, mcf lease total
Last 12 months 22,536 · prior 12 21,294(+6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Endeavor Energy Resources L.P.Sep 2008 → Dec 2024
- 2Diamondback E&P LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 840858-99 | Recompletion | Endeavor Energy Resources L.P. | Jun 5, 2018 | Oct 4, 2018 | Jun 2, 2008 | 11,300 |
| 656423-99 | Reenter | Endeavor Energy Resources L.P. | Feb 29, 2008 | Mar 10, 2008 | Jun 2, 2008 | 12,000 |
| 362844-99 | Drill | Tamarack Petroleum Company, Inc. | Aug 17, 1989 | Aug 21, 1989 | Sep 12, 1989 | 11,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-39198 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,681 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,194 | 7,444 | Perforated |
| 7,194 | 11,238 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 272 | 17.5 | 295 S |
| 8.625 | 4,917 | 11 | 900 S |
| 4.5 | 11,300 | 7.875 | 150 S |
| 4.5 | — | 7.875 | 1,500 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 | Apr 18, 2019 | Jun 27, 2018 | — |
| 00 | Apr 30, 2009 | Dec 10, 2008 | Yes |
| 00 | Apr 8, 2009 | — | — |
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 42-329-32138 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-32138 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Cosper '37'42-329-36966
0.5 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 7,200 | -4,516 |
| Spraberry | 7,200 | -4,516 |
| Strawn | 10,250 | -7,566 |
| Atoka | — |
Cosper '37'42-329-36605
0.5 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 7,200 | -4,504 |
| Wolfcamp | 8,850 | -6,154 |
| Strawn | 10,240 | -7,544 |
| Atoka | — |
Cosper '37'42-329-36171
0.5 KM · Endeavor Energy Resources L.P. · Section with this well →
| Yates | 2,400 | 280 |
| Spraberry | 7,175 | -4,495 |
| Spraberry | 7,175 | -4,495 |
| Dean | 8,475 | -5,795 |
| Wolfcamp | 8,800 | -6,120 |
| Strawn | 10,217 | -7,537 |
| Bend | 10,375 | -7,695 |
| Atoka | 11,475 | -8,795 |
Graham '48'42-329-35866
0.9 KM · Endeavor Energy Resources L.P. · Section with this well →
| Yates | 2,425 | 256 |
| Spraberry | 7,200 | -4,519 |
| Spraberry | 7,200 | -4,519 |
| Dean | 8,525 | -5,844 |
| Base UP Wolfcamp Lime | 9,375 | -6,694 |
| Strawn | 10,275 | -7,594 |
| Bend | 10,475 | -7,794 |
House '47'42-329-33481
0.9 KM · Stephens, Autry C. · Section with this well →
| Spraberry | 7,253 | -4,556 |
| Spraberry | 7,253 | -4,556 |
| Spraberry | 8,130 | -5,433 |
| Spraberry | 8,130 | -5,433 |
| Dean | 8,640 | -5,943 |
| Wolfcamp | 8,900 | -6,203 |
| Strawn | 10,177 | -7,480 |
| Atoka | — |
Germania 4242-329-42811
1.5 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 943 | 1,742 |
| Yates | 2,372 | 313 |
| Seven Rivers | 2,620 | 65 |
| Queen | 3,289 | -604 |
| Grayburg | 3,714 | -1,029 |
| San Andres | 4,107 | -1,422 |
| Clear Fork | 6,235 | -3,550 |
| Spraberry | 7,170 | -4,485 |
10 TOPS · FIRST 8
Germania Spraberry Unit42-329-42809
1.5 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 948 | 1,737 |
| Yates | 2,365 | 320 |
| Seven Rivers | 2,608 | 77 |
| Queen | 3,269 | -584 |
| Grayburg | 3,695 | -1,010 |
| San Andres | 4,080 | -1,395 |
| Clear Fork | 6,223 | -3,538 |
| Spraberry | 7,162 | -4,477 |
10 TOPS · FIRST 8
Cosper 37-48 WSL42-329-44495
1.6 KM · Endeavor Energy Resources L.P. · Section with this well →
| Santa Rosa | 1,033 | 656 |
| Yates | 2,435 | -746 |
| Queen | 3,376 | -1,687 |
| Grayburg | 3,779 | -2,090 |
| San Andres | 4,118 | -2,429 |
| Clear Fork | 6,334 | -4,645 |
| Spraberry | 7,276 | -5,587 |
| Glorieta | — |
10 TOPS · FIRST 8
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/32932138, documented in the API reference.