TEXAS · WELLS · GLASSCOCK COUNTY · HALFMANN 4 LEASE · API 42-173-31514 · DISTRICT 7B
Halfmann 4 #2
Glasscock County · Dewey Lake S. (Strawn) field · Vertical
Halfmann 4 #2 (API 42-173-31514) is a plugged well in Glasscock County, plugged August 26, 2014, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued November 23, 1983, permitted to 10,200 ft.
It was permitted by L & B Oil CO. Inc. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including San Andres, Clear Fork, Spraberry, Dean.
Its lease has reported 40.2K barrels of oil and 371K mcf of gas since January 1993, last reporting in December 2023. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by L & B Oil Co. Inc.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,628
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Mar 2021 |
| Latest permit | L & B Oil Co. Inc.Nov 23, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,200
- total depth, ft
- 1
- permits on file
- Nov 23, 1983
- last permit issued
- Jan 7, 1984
- completed
- 40.2K
- cumulative oil, bbl
- 371K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 7, 1984
- Shut in
- —
- Plugged
- Aug 26, 2014
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Halfmann 4 O-10-28427 | Dewey Lake, S. (Strawn) | Pioneer Natural Res. USA, Inc. | 2 | 40.2K | 371K | Jan 1993 – Dec 2023 |
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 → Jun 2002
- 5Jetta Operating Company, Inc.Jul 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 |
|---|---|---|---|---|---|---|
| 221706-99 | Drill | L & B Oil Co. Inc. | Nov 23, 1983 | Nov 23, 1983 | — | 10,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 7, 1984 | Halfmann 4 O-10-28427 | Dewey Lake S. (Strawn) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,719 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 3,300 | -581 |
| Clear ForkCLEARFORK | 5,708 | -2,989 |
| SpraberrySPRAYBERRY | 6,488 | -3,769 |
| Dean | 7,876 | -5,157 |
| Wolfcamp | 8,032 | -5,313 |
| Strawn | 10,035 | -7,316 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,037 | 10,135 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 390 | 17.5 | 400 S |
| 9.625 | 3,390 | 12.25 | 400 S |
| 5.5 | 10,228 | 8.75 | 755 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 | Mar 1, 1984 | Feb 16, 1984 | — |
| 00 | Feb 23, 1984 | Feb 16, 1984 | — |
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 42-173-31514 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31514 → 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/17331514, documented in the API reference.