TEXAS · WELLS · GLASSCOCK COUNTY · API 42-173-31839 · DISTRICT 7B
Halfmann Delbert #1
Glasscock County · Saint Lawrence (Strawn) field · Producing · Vertical
Halfmann Delbert #1 (API 42-173-31839) is a well in Glasscock County operated by Xto Energy Inc., completed December 10, 1993 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 2, 1985, permitted to 10,100 ft.
It was permitted by Exxon Corp. and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 11 formation tops, including Dewey Lake, Rustler, Slado, Yates.
Its 2 leases have reported 1.36K barrels of oil and 754K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Corp.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 16,156
- Phone
- (346) 502-1572
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | Exxon Corp.Apr 2, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,100
- total depth, ft
- 1
- permits on file
- Apr 2, 1985
- last permit issued
- Dec 10, 1993
- completed
- 1.36K
- cumulative oil, bbl
- 754K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 10, 1993
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Halfmann, Delbert G-10-147950 | Saint Lawrence (Strawn) | XTO Energy Inc. | 1 | 0 | 633K | Dec 1993 – Jul 2026 |
| Halfmann, Delbert O-10-30016 | Saint Lawrence (Strawn) | Exxon Corp. | 2 | 1.36K | 121K | Jan 1993 – Oct 1994 |
Gas, mcf lease total
Last 12 months 4,886 · prior 12 5,991(-18%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Jun 2005
- 3XTO Energy Inc.Jul 2005 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 271505-99 | Drill | Exxon Corp. | May 17, 1985 | Apr 2, 1985 | Jun 19, 1985 | 10,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 10, 1993 | Halfmann Delbert G-10-147950 | Saint Lawrence (Strawn) | XTO Energy Inc. | Producing | 10,100 |
| Jul 29, 1985 | Halfmann Delbert O-10-30016 | Saint Lawrence (Strawn) | Exxon Corp. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,708 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Dewey Lake | 845 | 1,863 |
| Rustler | 1,195 | 1,513 |
| Slado | 1,270 | 1,438 |
| Yates | 1,888 | 820 |
| Seven Rivers | 2,005 | 703 |
| San Andres | 2,968 | -260 |
| Leonard | 5,222 | -2,514 |
| Spraberry | 6,255 | -3,547 |
| Dean | 7,714 | -5,006 |
| Wolfcamp | 7,880 | -5,172 |
| Strawn | 9,910 | -7,202 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,957 | 9,969 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 457 | 17.5 | 600 S |
| 9.625 | 3,102 | 12.25 | 2,065 S |
| 7 | 7,950 | 8.5 | 465 S |
| 4.5 | 10,100 | 6 | 400 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, 1994 | Jan 14, 1994 | — |
| 00 | Feb 9, 1994 | — | — |
| 00 | Sep 11, 1985 | Aug 13, 1985 | — |
| 00 | Aug 27, 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 42-173-31839 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-31839 → 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/17331839, documented in the API reference.