WELL · 42-173-31921 · DISTRICT 8
Rae -40- #4
Glasscock County · Nutt (Lower Wolfcamp) field · Vertical
Rae -40- #4 (API 42-173-31921) is a plugged well in Glasscock County, plugged February 7, 1990, last operated by Smith Bros. Casing Pullers Inc..
The RRC has issued 3 drilling permits (amended twice) between 1985 and 2017, permitted to 12,000 ft.
It was permitted by Endeavor Energy Resources L.P. and has since transferred to Smith Bros. Casing Pullers Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Clear Fork, Spraberry, Wolfcamp, Strawn.
Its lease has reported 332K barrels of oil and 673K mcf of gas since July 2002, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Smith Bros. Casing Pullers Inc.
Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 22, 2001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Smith Bros. Casing Pullers Inc. |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Endeavor Energy Resources L.P.Nov 15, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 5
- permits on file
- Nov 15, 2017
- last permit issued
- Feb 10, 1987
- completed
- 332K
- cumulative oil, bbl
- 673K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2002 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 10, 1987
- Shut in
- —
- Plugged
- Feb 7, 1990
Surface location
31.957656, -101.769083
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Glasscock 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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Max "40" O-10-36908 | Spraberry (Trend Area) | Diamondback E&P LLC | 4 | 332K | 673K | Jul 2002 – Jul 2026 |
Oil, barrels lease total
Last 12 months 9,499 · prior 12 11,040(-14%)
Gas, mcf lease total
Last 12 months 10,656 · prior 12 12,562(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Endeavor Energy Resources L.P.Jul 2002 → Dec 2024
- 2Diamondback E&P LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 832994-99 | Recompletion | Endeavor Energy Resources L.P. | Nov 8, 2017 | Nov 15, 2017 | — | 10,625 |
| 681671-98 | Reenter | Endeavor Energy Resources L.P. | Sep 24, 2010 | Jun 2, 2009 | Jul 13, 2009 | 11,000 |
| 681671-99 | Reenter | Endeavor Energy Resources L.P. | May 29, 2009 | Jun 2, 2009 | — | 12,000 |
| 291969-98 | Drill | Roks Energy Company | Jun 6, 1986 | Dec 5, 1985 | — | 11,500 |
| 291969-99 | Drill | Exxon Corp. | Dec 5, 1985 | Dec 5, 1985 | — | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-36908 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,609 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,438 | 10,111 | Perforated |
| 7,438 | 10,561 | Perforated |
| 8,500 | 9,010 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 345 | 26 | 800 S |
| 13.375 | 3,942 | 17 | 2,500 S |
| 9.625 | 8,500 | 12.25 | 1,220 S |
| 5.5 | 10,621 | 7.875 | 2,085 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 11, 2018 | Dec 28, 2017 | — |
| 00 | Aug 30, 2011 | Oct 13, 2010 | Yes |
| 00 | Jul 2, 1987 | Jun 9, 1987 | Yes |
| 00 | Jun 23, 1987 | — | — |
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 42-173-31921 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31921 → 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.
Schumann SWD42-173-39417
0.2 KM · Deep Blue Operating I LLC · Section with this well →
| Yates | 2,420 | 188 |
| Seven Rivers | 2,600 | 8 |
| Grayburg | 3,350 | -742 |
| San Andres | 3,880 | -1,272 |
| Spraberry | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Queen | — |
10 TOPS · FIRST 8
Max '40'42-173-33055
0.7 KM · Endeavor Energy Resources L.P. · Section with this well →
| U Spraberry | 6,866 | -4,260 |
| Spraberry | 6,866 | -4,260 |
| L Spraberry | 7,433 | -4,827 |
| Spraberry | 7,433 | -4,827 |
| Dean | 8,236 | -5,630 |
| Wolfcamp | 8,493 | -5,887 |
| Strawn | 10,178 | -7,572 |
| Atoka | — |
Max '40'42-329-34635
0.8 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 6,908 | -4,301 |
| Spraberry | 6,950 | -4,343 |
| U Spraberry | 6,950 | -4,343 |
| Spraberry | 7,470 | -4,863 |
| Dean | 8,226 | -5,619 |
| Wolfcamp | 8,450 | -5,843 |
| Pennsylvanian | 10,127 | -7,520 |
| Strawn | 10,200 | -7,593 |
9 TOPS · FIRST 8
Schumann '39'42-173-33912
0.9 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 6,875 | -4,264 |
| Strawn | 10,175 | -7,564 |
| Atoka | 10,325 | -7,714 |
Branch '46'42-173-33069
0.9 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 6,841 | -4,222 |
| Upper Sparaberry | 6,882 | -4,263 |
| Spraberry | 6,882 | -4,263 |
| Lower Sprabeerry | 7,208 | -4,589 |
| Spraberry | 7,208 | -4,589 |
| Dean | 8,218 | -5,599 |
| Wolfcamp | 8,402 | -5,783 |
| Wolfcamp | 8,404 | -5,785 |
11 TOPS · FIRST 8
Schumann '39'42-173-33911
1.0 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 6,875 | -4,254 |
| Strawn | 10,175 | -7,554 |
| Atoka | 10,500 | -7,879 |
Max '40'42-329-36060
1.0 KM · Endeavor Energy Resources L.P. · Section with this well →
| Yates | 2,250 | 361 |
| Spraberry | 6,900 | -4,289 |
| Dean | 8,250 | -5,639 |
| Wolfcamp | 8,550 | -5,939 |
| Strawn | 10,225 | -7,614 |
| Strawn | 10,225 | -7,614 |
| Bend | 10,350 | -7,739 |
| Bend | 10,350 | -7,739 |
Garrett '34'42-173-33337
1.4 KM · Endeavor Energy Resources L.P. · Section with this well →
| Spraberry | 6,875 | -4,265 |
| Spraberry | 7,425 | -4,815 |
| Dean | 8,225 | -5,615 |
| Wolfcamp | 8,475 | -5,865 |
| Strawn | 10,225 | -7,615 |
| Atoka | 10,375 | -7,765 |
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/17331921, documented in the API reference.