WELL · 42-173-31336 · DISTRICT 8
Deventer #1
Glasscock County · Dewey Lake S. (Wolfcamp) field · Vertical
Deventer #1 (API 42-173-31336) is a well in Glasscock County operated by Parsley Energy Operations LLC, completed November 25, 1988.
The RRC has issued 3 drilling permits between 1982 and 1988, permitted to 11,500 ft.
It was permitted by Gwr Operating CO. and has since transferred to Parsley Energy Operations LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Wolfcamp, Strawn, Fusselman.
Its 2 leases have reported 30.8K barrels of oil and 244K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by GWR Operating Co.; the EWA schedule now lists a different operator.
Irving, TX · P-5 Y, filed Apr 6, 2023 · 2,477 permits on file · (432) 563-8432
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Parsley Energy Operations LLC |
| Production reports | Pioneer Natural Res. USA, Inc.through Jun 2021 |
| Latest permit | GWR Operating Co.Nov 14, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,500
- total depth, ft
- 3
- permits on file
- Nov 14, 1988
- last permit issued
- Nov 25, 1988
- completed
- 30.8K
- cumulative oil, bbl
- 244K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 25, 1988
- Shut in
- —
- Plugged
- —
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Deventer O-10-52927 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 338 | 5.53K | Dec 2019 – Jul 2026 |
| Deventer O-10-32080 | Dewey Lake, S. (Wolfcamp) | Parsley Energy Operations, LLC | 1 | 30.4K | 238K | Jan 1993 – May 2020 |
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.
- 1Costilla Petroleum CorporationJan 1993 → Jan 1997
- 2Costilla Energy, Inc.Feb 1997 → Dec 1997
- 3Concho Resources Inc.Jan 1998 → Jun 2001
- 4Devon Energy Production Co, L.P.Jul 2001 → Mar 2002
- 5Jetta Operating Company, Inc.Aug 2002 → Jan 2005
- 6Sundown Energy LPFeb 2005 → Apr 2015
- 7Diamondback E&P LLCMay 2015 → Dec 2016
- 8DE Operating LLCJan 2017 → Apr 2017
- 9Parsley Energy Operations, LLCMay 2017 → Jan 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 351935-99 | Recompletion | GWR Operating Co. | Oct 5, 1988 | Nov 14, 1988 | — | 11,161 |
| 216568-99 | Recompletion | L & B Oil Co. Inc. | Oct 5, 1983 | Oct 7, 1983 | — | 11,161 |
| 170530-99 | Drill | L & B Oil Co. Inc. | Aug 31, 1982 | Aug 31, 1982 | Aug 15, 1982 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-32080 | — | — | — | — |
| — | — O-10-52927 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,745 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,451 | 10,104 | Perforated |
| 9,009 | 9,013 | Perforated |
| 10,011 | 10,104 | Perforated |
| 11,144 | 11,154 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 398 | 17.5 | 420 S |
| 9.625 | 3,325 | 12.25 | 400 S |
| 7 | 8,450 | 8.75 | 100 S |
| 2.875 | 9,911 | — | — |
| 2.375 | 11,130 | — | — |
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 | Feb 14, 2020 | Dec 16, 1988 | Yes |
| 00 | Jan 19, 1989 | Dec 16, 1988 | Yes |
| 00 | Jan 12, 1989 | — | — |
| 00 | Jan 12, 1984 | Oct 13, 1983 | — |
| 00 | Jan 12, 1984 | Mar 1, 1983 | — |
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 42-173-31336 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31336 → 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.
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/17331336, documented in the API reference.