WELL · 42-461-34026 · DISTRICT 7
Halff 57 #1
Upton County · Amacker-Tippett SW (Wolfcamp) field · Vertical
Halff 57 #1 (API 42-461-34026) is a well in Upton County operated by Eog Resources Inc., completed February 24, 2000.
The RRC has issued one drilling permit (amended twice), issued January 18, 2000, permitted to 9,600 ft.
Completion filings report 4 formation tops, including San Andres, Spraberry, Dean, Wolfcamp.
Its 2 leases have reported 699K barrels of oil and 3.07M mcf of gas since February 2000, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 2, 2025
- Permits on file
- 16,348
- Phone
- (713) 651-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | EOG Resources Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Apr 2026 |
| Latest permit | EOG Resources, Inc.Jan 18, 2000 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,600
- total depth, ft
- 3
- permits on file
- Jan 18, 2000
- last permit issued
- Feb 24, 2000
- completed
- 699K
- cumulative oil, bbl
- 3.07M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2000 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 24, 2000
- 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 |
|---|---|---|---|---|---|---|
| Lauren G-9-225744 | Amacker-Tippett, SW (Wolfcamp) | Pioneer Natural Res. USA, Inc. | 1 | 0 | 935K | Mar 2007 – Jul 2026 |
| Halff "57" O-9-14960 | Amacker-Tippett, SW (Wolfcamp) | EOG Resources, Inc. | 1 | 699K | 2.14M | Feb 2000 – Jun 2007 |
Gas, mcf lease total
Last 12 months 9,650 · prior 12 6,896(+40%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Feb 2000 → Feb 2012
- 2Summit Petroleum LLCMar 2012 → Aug 2019
- 3DE3 Operating LLCSep 2019 → May 2021
- 4Pioneer Natural Res. USA, Inc.Jun 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 491174-97 | Drill | EOG Resources, Inc. | Apr 3, 2000 | Jan 18, 2000 | — | 9,310 |
| 491174-98 | Drill | EOG Resources, Inc. | Feb 23, 2000 | Jan 18, 2000 | Jan 26, 2000 | 9,600 |
| 491174-99 | Drill | EOG Resources, Inc. | Jan 18, 2000 | Jan 18, 2000 | — | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-225744 | — | — | — | — |
| — | — O-9-14960 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,664 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 4,470 | -1,806 |
| SpraberryUPPER SPRABERRY | 6,990 | -4,326 |
| Dean | 8,200 | -5,536 |
| Wolfcamp | 8,308 | -5,644 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,185 | 9,234 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 545 | 12.25 | 100 S |
| 7 | 8,450 | 8.75 | 585 S |
| 4.5 | 9,310 | 6.25 | 125 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 | May 15, 2007 | Mar 8, 2007 | — |
| 00 | Apr 3, 2007 | — | — |
| 00 | Aug 7, 2000 | Mar 1, 2000 | Yes |
| 00 | Mar 10, 2000 | — | — |
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 42-461-34026 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-34026 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/46134026, documented in the API reference.